ACR122U
USB NFC Reader
Technical Specifications V3.06
Subject to change without prior notice info@acs.com.hk
www.acs.com.hk
Table of Contents
1.0. Introduction ............................................................................................................... 3
2.0. Features ..................................................................................................................... 4
3.0. Typical Applications ................................................................................................. 5
4.0. Technical Specifications .......................................................................................... 6
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1.0. Introduction
The ACR122U is a PC-linked contactless smart card reader/writer
developed on the 13.56 MHz contactless technology. It is the world’s first
CCID-compliant contactless card reader/writer that follows both ISO 14443
and ISO 18092. This device is designed to support not only MIFARE® and
ISO 14443 Type A and B cards but also FeliCa and NFC tags.
By making use of up to 424 Kbps read/write speed for NFC tag access and
up to 12 Mbps for USB full speed, ACR122U can efficiently read from and
write to various contactless cards/tags. It is also PC/SC-compliant which
allows interoperability across different applications and platforms.
You can experience the convenience in using ACR122U, with its compact size and the various
features it offers, for applications such as payment, access control, time and attendance, and mass
transit.
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2.0. Features
• USB Full Speed Interface
• CCID-compliant
• Smart Card Reader:
o Read/Write speed of up to 424 Kbps
o Built-in antenna for contactless tag access, with card reading distance of up to 50 mm
(depending on tag type)
o Supports ISO 14443 Part 4 Type A and B cards, MIFARE Classic®, FeliCa, and all four
types of NFC (ISO/IEC 18092 tags)
o Built-in anti-collision feature (only one tag is accessed at any time)
• Built-in Peripherals:
o User-controllable bi-color LED
o User-controllable buzzer
• Application Programming Interface:
o Supports PC/SC
o Supports CT-API (through wrapper on top of PC/ S C)
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• Supports Android™ 3.1 and later
• Compliant with the following standards:
o EN 60950/IEC 60950
o ISO 14443
o ISO 18092
o PC/SC
o CCID
o CE
o FCC
o RoHS 2
o REACH
o VCCI (Japan)
o KC (Korea)
o Microsoft® WHQL
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Uses an ACS-defined Android Library
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3.0. Typical Applications
• e-Government
• e-Banking and e-Payment
• e-Healthcare
• Transportation
• Network Security
• Access Control
• Loyalty Program
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4.0. Technical Specifications
Physical Characteristics
Dimensions .................................... 98.0 mm (L) × 65.0 mm (W) × 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 × 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
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
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Device Driver Operating System Support
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, Windo ws® Server 2012 R2, Windows® Server 2016
Linux®, Mac OS®, Solaris, Android™ 3.1 and later
Android is a trademark of Google LLC.
Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.
Mac OS is a trademark of Apple Inc., registered in the U.S. and other countries.
Microsoft, Windows and Windows Vista are registered trademarks of Microsoft Corporation in the United States and/or other countries.
MIFARE and MIFARE Classic are registered trademarks of NXP B.V. and are used under license.
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