74AVC4T245: 4-Bit Dual Supply Translating Transceiver with 3-State Outputs
Brand: Diodes Incorporated
Description
The 74AVC4T245 device is a 4-bit, dual-supply transceiver designed for bi-directional level translation and asynchronous communication between two data buses. It features four 2-bit input/output ports (nA and nB), a direction control input (nDIR), an output enable input (nOE), and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can operate at voltages between 0.8V and 3.6V, enabling translation between various low-voltage nodes (0.8V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V). Pins nA, nOE, and nDIR are referenced to VCC(A), while pins nB are referenced to VCC(B). A HIGH on nDIR allows transmission from nA to nB, and a LOW allows transmission from nB to nA. The output enable input (nOE) can disable the outputs, effectively isolating the buses. The device supports partial power-down applications using IOFF circuitry, which prevents damaging backflow current when powered down. In suspend mode, when either VCC(A) or VCC(B) is at GND, both nA and nB ports are in a high-impedance OFF-state.
The 74AVC4T245 is available in the TSSOP-16 package and is specified for operation from -40°C to +125°C across all supply voltages. Its wide temperature range and high ESD tolerance make it suitable for harsh applications.
Pin Assignments
| Pin Name | Pin Number | Function |
|---|---|---|
| VCCA | 1 | A port supply Voltage |
| 1DIR | 2 | Direction Control Pin for Port "1" |
| 2DIR | 3 | Direction Control Pin for Port "2" |
| 1A1 | 4 | Input/Output 1A1. Referenced to VCCA. |
| 1A2 | 5 | Input/Output 1A2. Referenced to VCCA. |
| 2A1 | 6 | Input/Output 2A1. Referenced to VCCA. |
| 2A2 | 7 | Input/Output 2A2. Referenced to VCCA. |
| GND | 8 | Ground |
| GND | 9 | Ground |
| 2B2 | 10 | Input/Output 2B2. Referenced to VCCB. |
| 2B1 | 11 | Input/Output 2B1. Referenced to VCCB. |
| 1B2 | 12 | Input/Output 1B2. Referenced to VCCB. |
| 1B1 | 13 | Input/Output 1B1. Referenced to VCCB. |
| 2OE | 14 | 3-state output-mode enable. Pull High to place port "2" outputs in high-impedance mode. Referenced to VCCA. |
| 1OE | 15 | 3-state output-mode enable. Pull High to place port "1" outputs in high-impedance mode. Referenced to VCCA. |
| VCCB | 16 | B port supply Voltage |
Function Table
| Control OE | Control DIR | A Port Status | B Port Status | Operation |
|---|---|---|---|---|
| L | L | Enabled | Hi-Z | B to A |
| L | H | Hi-Z | Enabled | A to B |
| H | X | Hi-Z | Hi-Z | Isolation |
Note 4: Floating input pin is allowed for this case.
Logic Diagram
A logic diagram illustrates the internal structure of the 74AVC4T245. It shows two sets of 2-bit transceivers, each controlled by a direction (DIR) and output enable (OE) signal. The diagram depicts NAND gates and buffers implementing the translation and 3-state logic for the A and B ports.
Applications
- Personal electronics
- Industrial
- Enterprise
- Telecom
Features
- Supply Voltage Range: VCC(A)/VCC(B): from 0.8V to 3.6V
- Max Data Rates:
- 380Mbps (1.8V to 3.3V Translation)
- 200Mbps (<1.8V to 3.3V Translation)
- 200Mbps (Translate to 2.5V or 1.8V)
- 150Mbps (Translate to 1.5V)
- 100Mbps (Translate to 1.2V)
- 50Mbps (Translate to 0.8V~1.1V)
- High Drive Strength (±12mA at 3.3V)
- IOFF Supports Partial-Power-Down Mode Operation
- ESD Protection Exceeds JESD 22:
- Exceeds 8000V Human Body Model (A114)
- Exceeds 1000V Charged Device Model (C101)
- Latch-Up Exceeds 100mA per JESD 78, Class II
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. "Green" Device (Note 3)
- For automotive applications requiring specific change control (e.g., parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact Diodes or your local representative. <a href="https://www.diodes.com/quality/product-definitions/">https://www.diodes.com/quality/product-definitions/</a>
Absolute Maximum Ratings
Note 5: Stresses greater than those listed under Absolute Maximum Ratings can cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to Absolute Maximum Ratings for extended periods can affect device reliability.
| Symbol | Parameter | Rating | Unit |
|---|---|---|---|
| ESD HBM | Human Body Model ESD Protection | 7.5 | kV |
| ESD CDM | Charged Device Model ESD Protection | 1.5 | kV |
| VCCA, VCCB | Supply Voltage Range | -0.5 to +4.6 | V |
| VI | Input Voltage Range | -0.5 to +4.6 | V |
| VO | Voltage Applied to Output in High Impedance or IOFF State | -0.5 to +4.6 | V |
| VO | Voltage Applied to Output in High or Low State | -0.5 to VCCO+0.5 | V |
| IIK | Input Clamp Current VI < 0 | -50 | mA |
| IOK | Output Clamp Current | -50 | mA |
| IO | Continuous Output Current | +50 | mA |
| ICC | Continuous Current Through VCCA or GND | ±100 | mA |
| TJ | Operating Junction Temperature | +150 | °C |
| TSTG | Storage Temperature | -65 to +150 | °C |
Recommended Operating Conditions
Note: @TA = +25°C, unless otherwise specified.
| Symbol | Parameter | VCCO | Min | Max | Units |
|---|---|---|---|---|---|
| VCCA | Operating Voltage | 0.8 | 3.6 | V | |
| 0.8 | 3.6 | V | |||
| IOH | High-Level Output Current (Data Input, nDIR, nOE Input) | 1.1V | — | -3 | mA |
| 1.4V to 1.6V | — | -6 | |||
| 1.65V to 1.95V | — | -8 | |||
| 2.3V to 2.7V | — | -9 | |||
| 3V to 3.6V | — | -12 | |||
| — | — | ||||
| IOL | Low-Level Output Current (Data Input, nDIR, nOE Input) | 1.1V | — | 3 | mA |
| 1.4V to 1.6V | — | 6 | |||
| 1.65V to 1.95V | — | 8 | |||
| 2.3V to 2.7V | — | 9 | |||
| 3V to 3.6V | — | 12 | |||
| — | — | ||||
| VI | Input Voltage | Active State | 0 | 3.6 | V |
| Tri-State | 0 | VCCO | V | ||
| VO | Output Voltage | 0 | 3.6 | V | |
| TA | Operating Free-Air Temperature | -40 | +125 | °C |
Electrical Characteristics
Notes 6, 7, 8, 9 & 10: @TA = +25°C, @TA = -40°C to +85°C, @TA = -40°C to +125°C, unless otherwise specified.
Note 6: VCCI is the VCC associated with the input port.
Note 7: VCCO is the VCC associated with the output port.
Note 8: All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation.
Note 9: For VCCI values not specified in the data sheet, VIH min = VCCI × 0.7V, VIL max = VCCI × 0.3V.
Note 10: For OE and DIR VCCI values not specified in the data sheet, VIH min = VCCA × 0.7V, VIL max = VCCA × 0.3V.
| Symbol | Parameter | Test Condition | TA = +25°C | TA = -40°C to +85°C | TA = -40°C to +125°C | Unit | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| VCCI | VCCO | Min | Typ | Max | Min | Max | Min | Max | ||
| VIH | High-Level Input Voltage (Data Input, nDIR, nOE Input) | 0.8V | 0.70VCCI | — | — | 0.70VCCI | — | 0.70VCCI | — | V |
| 1.1V to 1.95V | 0.65VCCI | — | — | 0.65VCCI | — | 0.65VCCI | — | V | ||
| 1.95V to 2.7V | 1.6 | — | — | 1.6 | — | 1.6 | — | V | ||
| 2.7V to 3.6V | 2 | — | — | 2 | — | 2 | — | V | ||
| VIL | Low-Level Input Voltage (Data Input, nDIR, nOE Input) | 0.8V | 0.3VCCI | — | — | 0.3VCCI | — | 0.3VCCI | — | V |
| 1.1V to 1.95V | 0.35VCCI | — | — | 0.35VCCI | — | 0.35VCCI | — | V | ||
| 1.95V to 2.7V | 0.7 | — | — | 0.7 | — | 0.7 | — | V | ||
| 2.7V to 3.6V | 0.8 | — | — | 0.8 | — | 0.8 | — | V | ||
| VOH | High-Level Output Voltage | IOH = -0.1mA (0.8V-3.6V) | VCCO - 0.1 | — | — | VCCO - 0.1 | — | VCCO - 0.1 | — | V |
| IOH = -3mA (1.1V) | 0.95 | — | 0.85 | — | 0.85 | — | ||||
| IOH = -6mA (1.4V) | 1.05 | — | 1.05 | — | 1.05 | — | ||||
| IOH = -8mA (1.65V) | 1.2 | — | 1.2 | — | 1.2 | — | ||||
| IOH = -9mA (2.3V) | 1.75 | — | 1.75 | — | 1.75 | — | ||||
| IOH = -12mA (3V) | 2.3 | — | 2.3 | — | 2.3 | — | ||||
| VOL | Low-Level Output Voltage | IOL = 0.1mA (0.8V-3.6V) | 0.1 | — | 0.1 | — | 0.1 | — | V | |
| IOL = 3mA (1.1V) | 0.25 | — | 0.25 | — | 0.27 | — | ||||
| IOL = 6mA (1.4V) | 0.35 | — | 0.35 | — | 0.35 | — | ||||
| IOL = 8mA (1.65V) | 0.45 | — | 0.45 | — | 0.45 | — | ||||
| IOL = 9mA (2.3V) | 0.55 | — | 0.55 | — | 0.55 | — | ||||
| IOL = 12mA (3V) | 0.7 | — | 0.7 | — | 0.7 | — | ||||
| Symbol | Parameter | Test Condition | TA = +25°C | TA = -40°C to +85°C | TA = -40°C to +125°C | Unit | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VCCI | VCCO | Min | Typ | Max | Min | Max | Min | Max | ||||
| II | Input Current | VI = VCCA or GND | 0.8V-3.6V | — | ±0.25 | — | ±1 | — | ±1 | — | µA | |
| IOFF | Off-State Current | A or B Port, VO = 0 | 0.8V-3.6V | 0 | ±1 | — | ±3 | — | ±10 | — | µA | |
| 0.8V-3.6V | 0 | ±1 | — | ±3 | — | ±10 | — | µA | ||||
| IOZ | High-Z State Port Current | A or B, VO = 0 | 3.6V | 0 | ±1 | — | ±2 | — | ±5 | — | µA | |
| A Port | 3.6V to 3.6V | 0 | ±1 | — | ±2 | — | ±5 | — | µA | |||
| B Port | 0 to 3.6V | 0 | ±1 | — | ±2 | — | ±5 | — | µA | |||
| ICCA | Supply Current | VI = VCCI or GND, IO = 0 | 0.8V-3.6V | 0.8V-1.1V | — | ±1 | — | ±10 | — | ±35 | — | µA |
| 0.8V-3.6V | 0 | ±1 | — | ±8 | — | ±25 | — | µA | ||||
| 0-3.6V | 0 | ±1 | — | ±10 | — | ±35 | — | µA | ||||
| ICCB | Supply Current | VI = VCCI or GND, IO = 0 | 0.8V-3.6V | 0.8V-1.1V | — | ±1 | — | ±10 | — | ±35 | — | µA |
| 0.8V-3.6V | 0 | ±1 | — | ±8 | — | ±25 | — | µA | ||||
| 0-3.6V | 0 | ±1 | — | ±10 | — | ±35 | — | µA | ||||
| ICCA + ICCB | Supply Current | VI = VCCI or GND, IO = 0 | 0.8V-3.6V | 0.8V-1.1V | — | ±2 | — | ±20 | — | ±70 | — | µA |
| CI | Control Input Capacitance | nDIR, nOE | 3.3V or 3.3V | 3.5 | — | 4.5 | — | 4.5 | — | pF | ||
| Input/Output | A or B | 3.3V or 3.3V | 6 | — | 7 | — | 7 | — | pF | |||
| Symbol | Parameter | Package | Test Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| θJA | Thermal Resistance Junction-to-Ambient | TSSOP-16 | (Note 11) | — | 100 | — | °C/W |
| θJC | Thermal Resistance Junction-to-Case | TSSOP-16 | (Note 11) | — | 43 | — | °C/W |
Note 11: Test condition for the package type: device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.
Switching Characteristics
Notes 6, 7, 8, 9 & 10: @TA = -40°C to +125°C, unless otherwise specified.
VCCA = 0.8V
| Parameter | Test Condition | Direction | VCCB | Unit | |||||
|---|---|---|---|---|---|---|---|---|---|
| 0.8V | 1.2V ± 0.1V | 1.5V ± 0.1V | 1.8V ± 0.15V | 2.5V ± 0.2V | 3.3V ± 0.3V | ||||
| Typ | Typ | Typ | Typ | Typ | Typ | ||||
| tpd (Propagation Delay) | nAn to nBn | 11.0 | 7.3 | 6.5 | 6.2 | 6.5 | 7.0 | ns | |
| nBn to nAn | 11.0 | 10.0 | 12.4 | 12.3 | 12.1 | 12.0 | |||
| ten (Enable Time) | nOE to nAn | 18.2 | 18.2 | 18.2 | 18.2 | 18.2 | 18.2 | ns | |
| nOE to nBn | 19.2 | 12.7 | 11.4 | 10.9 | 10.7 | 11.1 | |||
| tdis (Disable Time) | nOE to nAn | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | ns | |
| nOE to nBn | 12.6 | 9.9 | 9.0 | 9.4 | 9.0 | 9.7 | |||
VCCB = 0.8V
| Parameter | Test Condition | Direction | VCCA | Unit | |||||
|---|---|---|---|---|---|---|---|---|---|
| 0.8V | 1.2V ± 0.1V | 1.5V ± 0.1V | 1.8V ± 0.15V | 2.5V ± 0.2V | 3.3V ± 0.3V | ||||
| Typ | Typ | Typ | Typ | Typ | Typ | ||||
| tpd (Propagation Delay) | nAn to nBn | 14.5 | 12.7 | 12.4 | 12.3 | 12.1 | 12.0 | ns | |
| nBn to nAn | 14.5 | 7.3 | 6.5 | 6.2 | 5.9 | 6.0 | |||
| ten (Enable Time) | nOE to nAn | 18.2 | 13.0 | 12.1 | 9.6 | 7.3 | 6.4 | ns | |
| nOE to nBn | 19.2 | 15.8 | 15.3 | 15.0 | 15.0 | 14.8 | |||
| tdis (Disable Time) | nOE to nAn | 14.3 | 9.6 | 8.5 | 7.5 | 7.7 | 8.6 | ns | |
| nOE to nBn | 17.0 | 13.8 | 13.4 | 13.1 | 12.9 | 12.7 | |||
VCCA = 1.2V ± 0.1V
| Parameter | Test Conditions | Direction | VCCB | Unit | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.2V ± 0.1V | 1.5V ± 0.1V | 1.8V ± 0.15V | 2.5V ± 0.2V | 3.3V ± 0.3V | |||||||||
| Min | Typ | Min | Typ | Min | Typ | Min | Typ | Min | Typ | ||||
| tpd (Propagation Delay) | nAn to nBn | 0.5 | 3 | 0.5 | 2.9 | 0.5 | 2.1 | 0.5 | 2.1 | 0.5 | 2.3 | ns | |
| nBn to nAn | 0.5 | 3 | 0.5 | 3.1 | 0.5 | 2.8 | 0.5 | 2.1 | 0.5 | 2.2 | |||
| ten (Enable Time) | nOE to nAn | 1.8 | 3.9 | 1.8 | 4.2 | 1.8 | 4.3 | 1.8 | 3.5 | 1.8 | 3.5 | ns | |
| nOE to nBn | 1.9 | 4 | 1.9 | 2.5 | 1.9 | 3.3 | 1.4 | 3.6 | 1.2 | 4.5 | |||
| tdis (Disable Time) | nOE to nAn | 1.4 | 3.2 | 1.4 | 2.3 | 1.4 | 3 | 1.4 | 3 | 1.4 | 3.1 | ns | |
| nOE to nBn | 1.1 | 3 | 1.1 | 2.2 | 1.1 | 2.9 | 1.0 | 2.5 | 1.0 | 5.5 | |||
VCCA = 1.5V ± 0.1V
| Parameter | Test Conditions | Direction | VCCB | Unit | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.2V ± 0.1V | 1.5V ± 0.1V | 1.8V ± 0.15V | 2.5V ± 0.2V | 3.3V ± 0.3V | |||||||||
| Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | ||||
| tpd (Propagation Delay) | nAn to nBn | 0.3 | 7.8 | 0.3 | 6.3 | 0.3 | 5.2 | 0.4 | 4.2 | 0.4 | 4.2 | ns | |
| nBn to nAn | 0.7 | 6.3 | 0.7 | 6.3 | 0.5 | 5.9 | 0.4 | 5.7 | 0.3 | 5.6 | |||
| ten (Enable Time) | nOE to nAn | 1.8 | 10.5 | 1.4 | 9.6 | 1.1 | 9.5 | 0.7 | 9.7 | 0.4 | 9.4 | ns | |
| nOE to nBn | 1.9 | 11.0 | 1.4 | 9.6 | 1.1 | 7.7 | 0.9 | 7.1 | 0.9 | 6.9 | |||
| tdis (Disable Time) | nOE to nAn | 1.1 | 10.2 | 1.8 | 10.2 | 1.5 | 10.2 | 1.3 | 10.2 | 1.6 | 10.2 | ns | |
| nOE to nBn | 1.4 | 10.4 | 1.9 | 10.3 | 1.9 | 9.1 | 1.4 | 7.4 | 1.2 | 7.6 | |||
VCCA = 1.8V ± 0.15V
| Parameter | Test Conditions | Direction | VCCB | Unit | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.2V ± 0.1V | 1.5V ± 0.1V | 1.8V ± 0.15V | 2.5V ± 0.2V | 3.3V ± 0.3V | |||||||||
| Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | ||||
| tpd (Propagation Delay) | nAn to nBn | 0.1 | 7.7 | 0.1 | 5.9 | 0.1 | 4.9 | 0.1 | 3.9 | 0.3 | 3.9 | ns | |
| nBn to nAn | 0.6 | 5.5 | 0.6 | 5.3 | 0.5 | 4.9 | 0.3 | 4.6 | 0.3 | 4.5 | |||
| ten (Enable Time) | nOE to nAn | 1.8 | 9.0 | 1 | 8.6 | 1 | 7.3 | 0.6 | 7.3 | 0.4 | 7.2 | ns | |
| nOE to nBn | 1.7 | 10.5 | 1.2 | 9.2 | 1 | 7.4 | 0.8 | 6.7 | 0.8 | 6.5 | |||
| tdis (Disable Time) | nOE to nAn | 1.0 | 8.9 | 1.6 | 8.6 | 1.8 | 8.7 | 1.3 | 8.7 | 1.6 | 8.7 | ns | |
| nOE to nBn | 1.2 | 10.0 | 1.7 | 9.9 | 1.6 | 8.7 | 1.2 | 7.4 | 1 | 6.9 | |||
VCCA = 2.5V ± 0.2V
| Parameter | Test Conditions | Direction | VCCB | Unit | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.2V ± 0.1V | 1.5V ± 0.1V | 1.8V ± 0.15V | 2.5V ± 0.2V | 3.3V ± 0.3V | |||||||||
| Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | ||||
| tpd (Propagation Delay) | nAn to nBn | 0.1 | 7.4 | 0.1 | 5.7 | 0.1 | 4.6 | 0.2 | 3.9 | 0.1 | 3.6 | ns | |
| nBn to nAn | 0.6 | 4.6 | 0.6 | 4.2 | 0.4 | 4.1 | 0.2 | 3.9 | 0.2 | 3.3 | |||
| ten (Enable Time) | nOE to nAn | 1.0 | 8.0 | 0.7 | 6.7 | 0.7 | 6.5 | 0.6 | 5.9 | 0.4 | 4.8 | ns | |
| nOE to nBn | 1.5 | 9.8 | 0.9 | 8.8 | 0.8 | 7.0 | 0.6 | 5.8 | 0.6 | 4 | |||
| tdis (Disable Time) | nOE to nAn | 0.7 | 9.0 | 1 | 8.4 | 1 | 8.4 | 1 | 6.2 | 1 | 6.6 | ns | |
| nOE to nBn | 0.9 | 9.9 | 1.5 | 9.4 | 1.3 | 8.2 | 1.1 | 6.2 | 0.9 | 5.2 | |||
VCCA = 3.3V ± 0.3V
| Parameter | Test Conditions | Direction | VCCB | Unit | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.2V ± 0.1V | 1.5V ± 0.1V | 1.8V ± 0.15V | 2.5V ± 0.2V | 3.3V ± 0.3V | |||||||||
| Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | ||||
| tpd (Propagation Delay) | nAn to nBn | 0.1 | 7.3 | 0.1 | 5.6 | 0.1 | 4.5 | 0.1 | 3.7 | 0.1 | 2.9 | ns | |
| nBn to nAn | 0.6 | 4.6 | 0.6 | 4.2 | 0.4 | 3.9 | 0.2 | 3.7 | 0.1 | 2.8 | |||
| ten (Enable Time) | nOE to nAn | 0.7 | 9.2 | 0.6 | 8.7 | 0.6 | 5.9 | 0.6 | 5.6 | 0.4 | 3.8 | ns | |
| nOE to nBn | 1.4 | 9.5 | 0.8 | 8.7 | 0.6 | 6.8 | 0.5 | 5.7 | 0.5 | 3.8 | |||
| tdis (Disable Time) | nOE to nAn | 0.6 | 9.5 | 0.7 | 9.3 | 0.7 | 8.3 | 0.7 | 5.6 | 0.7 | 6.6 | ns | |
| nOE to nBn | 0.8 | 9.5 | 1.4 | 9.3 | 1.2 | 8.1 | 1 | 6.4 | 0.8 | 6.2 | |||
Operating Characteristics
@TA = +25°C, unless otherwise specified.
| Parameter | Test Condition | 0.8V | 1.2V | 1.5V | 1.8V | 2.5V | 3.3V | Unit | |
|---|---|---|---|---|---|---|---|---|---|
| CpdA | A to B | Enabled | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 | pF |
| Disabled | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 | |||
| B to A | Enabled (CL = 0, RL = Open, f = 10MHz, tr = tf = 1ns, VCCA = VCCB) | 9.5 | 9.7 | 9.8 | 9.9 | 10.7 | 11.9 | ||
| Disabled | 0.6 | 0.6 | 0.6 | 0.6 | 0.7 | 0.7 | |||
| CpdB | A to B | Enabled | 9.5 | 9.7 | 9.8 | 9.9 | 10.7 | 11.9 | pF |
| Disabled | 0.6 | 0.6 | 0.6 | 0.6 | 0.7 | 0.7 | |||
| B to A | Enabled (CL = 0, RL = Open, f = 10MHz, tr = tf = 1ns, VCCA = VCCB) | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 | ||
| Disabled | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 |
Parameter Measurement Information
The following diagrams and tables illustrate the test conditions and waveforms used for measuring the device's parameters.
Waveform Descriptions
- Voltage Waveform Pulse Duration: Depicts input and output signals with parameters like pulse width (tw), rise time (tr), and fall time (tf).
- Voltage Waveform Propagation Delay Times: Illustrates inverting and non-inverting output waveforms, showing propagation delays (tPLH, tPHL) from input transitions to output transitions.
- The VI Source Waveform: Shows the characteristics of the input voltage source waveform used in testing.
- The Enable/Disable (EN) to Output (Yn) Times: Displays waveforms related to the enable/disable signals and their effect on the output, illustrating times like tPLZ (propagation delay from enable to output) and tPZL (propagation delay from disable to output).
Figure 1. Load Circuit and Voltage Waveforms
This figure shows a typical test load circuit including the Device Under Test (DUT), power supply (VCC), termination resistor (RT), load resistor (RL), load capacitor (CL), and ground (GND). The figure also shows the input (Vi) and output (Vo) voltage waveforms relative to the test setup.
| Parameter | S1 |
|---|---|
| tpd | Open |
| ten/tdis | 2*VCCO |
| ten/tdis | GND |
| VCC | RL | CL | VTP |
|---|---|---|---|
| 0.8V-1.6V | 2kΩ | 15pF | 0.1V |
| 1.65V-2.7V | 2kΩ | 15pF | 0.15V |
| 3.0V-3.6V | 2kΩ | 15pF | 0.3V |
Notes:
- A. Includes test lead and test apparatus capacitance.
- B. f = 1MHz, Δt/ΔV < 1ns/V.
- C. tPLH and tPHL are the same as tPD.
- D. tr, tf < 1ns.
Ordering Information
The part number structure for the 74AVC4T245 is as follows:
- Logic Device: 74 (Logic Prefix), AVC (Logic Family: 0.8V to 3.6V)
- 4T: 4-Channel
- 245: Bus Transceiver with Configurable Voltage Translation and 3-State Outputs
- Package: T16 (TSSOP-16)
- Packing: 13 (13" Tape & Reel)
| Orderable Part Number | Package Code | Package | Qty. | Packing | Carrier |
|---|---|---|---|---|---|
| 74AVC4T245T16-13 | T16 | TSSOP-16 | 2,500 | 13" Tape & Reel | 13" Tape & Reel |
Notes:
- 12. For packaging details, visit <a href="https://www.diodes.com/design/support/packaging/diodes-packaging/">https://www.diodes.com/design/support/packaging/diodes-packaging/</a>.
- 13. Pad layout information is available in Diodes Incorporated's package outline PDFs at <a href="http://www.diodes.com/package-outlines.html">http://www.diodes.com/package-outlines.html</a>.
- 14. Taping orientation details are available at <a href="https://www.diodes.com/assets/Packaging-Support-Docs/AP02007.pdf">https://www.diodes.com/assets/Packaging-Support-Docs/AP02007.pdf</a>.
Marking Information
The marking for the TSSOP-16 package includes the logo, the part number "AVC4T245", and a date code (YY WW XX).
- YY: Year (e.g., 25, 26, 27...)
- WW: Week (01-52, representing weeks 52 and 53)
- XX: Internal Code
| Orderable Part Number | Package | Marking ID |
|---|---|---|
| 74AVC4T245T16-13 | TSSOP-16 | AVC4T245 |
Package Outline Dimensions
Details for the TSSOP-16 package are provided below. For the latest version, please refer to <a href="https://www.diodes.com/package-outlines.html">https://www.diodes.com/package-outlines.html</a>.
TSSOP-16 Dimensions
| Dim | Min | Max | Typ |
|---|---|---|---|
| A | — | 1.08 | — |
| A1 | 0.05 | 0.15 | — |
| A2 | 0.80 | 0.93 | — |
| b | 0.19 | 0.30 | — |
| c | 0.09 | 0.20 | — |
| D | 4.90 | 5.10 | — |
| E | 6.40 BSC | ||
| E1 | 4.30 | 4.50 | — |
| e | 0.65 BSC | ||
| L | 0.45 | 0.75 | — |
| L1 | 1.00 REF | ||
| L2 | 0.25 BSC | ||
| R / R1 | 0.09 | — | — |
| X | — | — | 1.350 |
| Y | — | — | 1.050 |
| θ | 0° | 8° | — |
| θ1 | 5° | 15° | — |
| θ2 | 0° | — | — |
| All Dimensions in mm | |||
Suggested Pad Layout
For the latest version of the suggested pad layout, please refer to <a href="https://www.diodes.com/package-outlines.html">https://www.diodes.com/package-outlines.html</a>.
| Dimensions | Value (in mm) |
|---|---|
| C | 0.650 |
| X | 0.350 |
| X1 | 4.900 |
| Y | 1.400 |
| Y1 | 6.800 |
Mechanical Data
- Moisture Sensitivity: Level 1 per J-STD-020
- Terminals: Finish - Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208
- Weight: 0.055 grams (Approximate)
Important Notice
DIODES INCORPORATED (Diodes) AND ITS SUBSIDIARIES MAKE NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO ANY INFORMATION CONTAINED IN THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
The Information contained herein is for informational purpose only and is provided only to illustrate the operation of Diodes' products described herein and application examples. Diodes does not assume any liability arising out of the application or use of this document or any product described herein. This document is intended for skilled and technically trained engineering customers and users who design with Diodes' products. Diodes' products may be used to facilitate safety-related applications; however, in all instances customers and users are responsible for (a) selecting the appropriate Diodes products for their applications, (b) evaluating the suitability of Diodes' products for their intended applications, (c) ensuring their applications, which incorporate Diodes' products, comply the applicable legal and regulatory requirements as well as safety and functional-safety related standards, and (d) ensuring they design with appropriate safeguards (including testing, validation, quality control techniques, redundancy, malfunction prevention, and appropriate treatment for aging degradation) to minimize the risks associated with their applications.
Diodes assumes no liability for any application-related information, support, assistance or feedback that may be provided by Diodes from time to time. Any customer or user of this document or products described herein will assume all risks and liabilities associated with such use, and will hold Diodes and all companies whose products are represented herein or on Diodes' websites, harmless against all damages and liabilities.
Products described herein may be covered by one or more United States, international or foreign patents and pending patent applications. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks and trademark applications. Diodes does not convey any license under any of its intellectual property rights or the rights of any third parties (including third parties whose products and services may be described in this document or on Diodes' website) under this document.
Diodes' products are provided subject to Diodes' Standard Terms and Conditions of Sale (<a href="https://www.diodes.com/about/company/terms-and-conditions/terms-and-conditions-of-sales/">https://www.diodes.com/about/company/terms-and-conditions/terms-and-conditions-of-sales/</a>) or other applicable terms. This document does not alter or expand the applicable warranties provided by Diodes. Diodes does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Diodes' products and technology may not be used for or incorporated into any products or systems whose manufacture, use or sale is prohibited under any applicable laws and regulations. Should customers or users use Diodes' products in contravention of any applicable laws or regulations, or for any unintended or unauthorized application, customers and users will (a) be solely responsible for any damages, losses or penalties arising in connection therewith or as a result thereof, and (b) indemnify and hold Diodes and its representatives and agents harmless against any and all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim relating to any noncompliance with the applicable laws and regulations, as well as any unintended or unauthorized application.
While efforts have been made to ensure the information contained in this document is accurate, complete and current, it may contain technical inaccuracies, omissions and typographical errors. Diodes does not warrant that information contained in this document is error-free and Diodes is under no obligation to update or otherwise correct this information. Notwithstanding the foregoing, Diodes reserves the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes.
Any unauthorized copying, modification, distribution, transmission, display or other use of this document (or any portion hereof) is prohibited. Diodes assumes no responsibility for any losses incurred by the customers or users or any third parties arising from any such unauthorized use.
This Notice may be periodically updated with the most recent version available at <a href="https://www.diodes.com/about/company/terms-and-conditions/important-notice">https://www.diodes.com/about/company/terms-and-conditions/important-notice</a>
The Diodes logo is a registered trademark of Diodes Incorporated in the United States and other countries. All other trademarks are the property of their respective owners. © 2025 Diodes Incorporated. All Rights Reserved.
