ACR122U USB NFC Reader
Technical Specifications V3.06
Advanced Card Systems Ltd.
Product Overview
The ACR122U is a USB NFC Reader developed by Advanced Card Systems Ltd. (ACS). It is designed to facilitate contactless interactions, supporting various NFC and contactless smart card standards.
2.0 Features
- USB Full Speed Interface
- CCID-compliant
- Smart Card Reader:
- Read/Write speed of up to 424 Kbps
- Built-in antenna for contactless tag access, with card reading distance of up to 50 mm (depending on tag type)
- Supports ISO 14443 Part 4 Type A and B cards, MIFARE Classic®, FeliCa, and all four types of NFC (ISO/IEC 18092 tags)
- Built-in anti-collision feature (only one tag is accessed at any time)
- Built-in Peripherals:
- User-controllable bi-color LED (Red and Green)
- User-controllable buzzer (Monotone)
- Application Programming Interface:
- Supports PC/SC
- Supports CT-API (through wrapper on top of PC/SC)
- Supports Android™ 3.1 and later
- Compliant with the following standards:
- EN 60950/IEC 60950
- ISO 14443
- ISO 18092
- PC/SC
- CCID
- CE
- FCC
- RoHS 2
- REACH
- VCCI (Japan)
- KC (Korea)
- Microsoft® WHQL
3.0 Typical Applications
The ACR122U is suitable for a wide range of applications, including:
- e-Government
- e-Banking and e-Payment
- e-Healthcare
- Transportation
- Network Security
- Access Control
- Loyalty Program
Visual Description: An image shows the white ACR122U USB NFC Reader connected via its USB cable. A contactless smart card is being held near the reader's NFC logo, indicating its function.
4.0 Technical Specifications
Visual Description: A diagram illustrates the physical dimensions of the ACR122U reader. The main body is rectangular with rounded corners. Dimensions are indicated as approximately 98.0 mm in length, 65.0 mm in width, and 12.8 mm in height. The USB connector is shown at one end.
Physical Characteristics
| Dimensions | 98.0 mm (L) x 65.0 mm (W) x 12.8 mm (H) |
| Weight | 70 g |
| Color | Pearl White |
USB Host Interface
| Protocol | USB CCID |
| Connector Type | Standard Type A |
| Power Source | From USB port |
| Speed | USB Full Speed (12 Mbps) |
| Supply Voltage | 5 V |
| Supply Current | Max. 200 mA |
| Cable Length | 1.0 m, Fixed |
Contactless Smart Card Interface
| Standard | ISO/IEC 18092 NFC, ISO 14443 Type A & B, MIFARE, FeliCa |
| Protocol | ISO 14443 T=CL for ISO 14443-4 compliant cards, T=CL Emulation for MIFARE Classic, ISO 18092, FeliCa and NFC Tags |
| Operating Frequency | 13.56 MHz |
| Operating Distance | Up to 50 mm (depending on tag type) |
| Smart Card Read/Write Speed | 106 Kbps, 212 Kbps, 424 Kbps |
| Antenna Size | 50 mm x 40 mm |
Built-in Peripherals
| LED | 1 bi-color: Red and Green |
| Buzzer | Monotone |
Application Programming Interface
| PC-linked Mode | PC/SC, CT-API (through wrapper on top of PC/SC) |
Operating Conditions
| Temperature | 0 °C - 60 °C |
| Humidity | Max. 90% (non-condensing) |
| MTBF | 408,500 hrs |
Certifications/Compliance
The device complies with the following standards and certifications:
- EN 60950/IEC 60950
- ISO 14443
- ISO 18092
- USB Full Speed
- PC/SC
- CCID
- CE
- FCC
- RoHS 2
- REACH
- VCCI (Japan)
- KC (Korea)
- Microsoft® WHQL
5.0 Device Driver Operating System Support
The ACR122U is supported on a wide range of operating systems:
- Windows® CE 5.0, Windows® 6.0, Windows® Embedded Compact 7, Windows® XP, Windows Vista®, Windows® 7, Windows® 8, Windows® 8.1, Windows® 10
- Windows® Server 2003, Windows® Server 2003 R2, Windows® Server 2008, Windows® Server 2008 R2, Windows® Server 2012, Windows® Server 2012 R2, Windows® Server 2016
- Linux®, Mac OS®, Solaris, Android™ 3.1 and later
Trademarks mentioned include Android™ (Google LLC), Linux® (Linus Torvalds), Mac OS® (Apple Inc.), Microsoft®, Windows®, Windows Vista® (Microsoft Corporation), MIFARE®, and MIFARE Classic® (NXP B.V.).
