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The ACR122T is a PC-linked NFC contactless smart card reader/writer in token form. It is developed based on the 13.56 MHz Contactless (RFID) Technology and the ISO/IEC 18092 Standard for Near Field Communication (NFC), supporting not only MIFARE, ISO 14443 Type A and B cards but also NFC and FeliCa contactless technologies.

The ACR122T is a USB Plug and Play device with CCID and PC/SC compliance, ensuring interoperability with different systems and applications. It is ideal for secure personal identity verification and online micro-payment transactions. Typical applications of the ACR122T reader include computer log-on, e-payment, home banking and network authentication.

The reading range is up to 3 cm depending on the contactless card or tag. The retractable USB connector and strap hole make it particularly suitable for portable use.

Supports all 3 NFC modes (reader, card emulation and peer-to-peer) and all 4 types of NFC cards and tags.

The ACR122T is compatible with Read-a-Card, the contactless card ID reading application, useful for the integration of RFID technology into new or existing systems.


1 Year Manufacturers Warranty

Device: 88mm (L) x 186mm (W) x 36mm (H); Cradle: 153mm (L) x 157mm (W) x 88mm (H)
Device: 348g (with battery); Cradle: 613g
32-bit ARM9 Processor
Operating System
Embedded Linux 2.6
32MB Flash + 32MB SDRAM
USB Full Speed Host and Client, Serial RS232 & Ethernet Interface to PC
Power Supply
Supplying Voltage: 12V; Supplying Current: max 1A; Source: External Power Adapter
Supply Current
max 1A
CLK Frequency
4 MHz
EMV 2000 v4.0 Level 1, CE, FCC, RoHS, ISO-7816, ISO-14443, PC/SC

SDK CD-ROM Contains:

(When purchased as part of an SDK)
Utility ToolsACR880 Web Tool - an application utility tool preloaded in the ACR880, which enables users to
- idenbtify the device's status and information
- perform tests on the device and its peripherals, and
- modify the device's configuration
Sample CodesDemonstrates the different capabilities of the ACR880, showcases how to control the reader's peripherals and how to communicate to a contactless tag.
ANSI C language
Reference ManualsEasy to use reference manuals to help with the development process
Technical Specifications
ACR880 Technical Specifications
ACR880 Application Programming Interface Manual
ACR880 Manual Firmware Update Instructions
Application Note
SDE Setup Manual
Connection ports are shown below (left to right): USB client, USB host, RS232 serial, Ethernet, AC jack (power supply).

Manufacturer: ACS

Connection Method: RS232+USB

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