ACR122U

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.

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/SC)
• Supports AndroidTM 3.1 and later1
• Compliant with the following standards:
o EN 60950/IEC 60950
o ISO 14443
o ISO 18092

Typical Applications

• e-Government
• e-Banking and e-Payment
• e-Healthcare
• Transportation
• Network Security
• Access Control
• Loyalty Program