SR176

ISO 14443 - 2 Type B Air Interface Compliant
ISO 14443 - 3 Type B Frame Format Compliant
13.56MHz Carrier Frequency
847kHz Subcarrier Frequency
106kbit/s Data Transfer
Data TransferASK Modulation from Reader to Tag-BPSK Coding from Tag to Reader
176-bit EEPROM with Write Protect Feature
64-bit Unique Identifier
READ BLOCK & WRITE BLOCK (16 Bits)
Internal Tuning Capacitor
Self-Timed Programming Cycle
5ms Programming Time (typical)
More than 100,000 Erase/Write Cycles
More than 10 Year Data Retention

The SR176 is a contactless memory,powered by an externally transmitted radio wave. It contains 176 bits of user EEPROM,fabricated croelectronics CMOS technology.The memory is organized as 16 blocks of 16 bits,of which 11 blocks are user accessible.

The SR176 is accessed via the 13.56MHz carrier.Incoming data are demodulated and decoded from the received Amplitude Shift Keying modulation signal (ASK).The modulation index of this sig-nal is 10%.Outgoing data are generated by load variation using Bit Phase Shift Keying (BPSK) of a 847 kHz subcarrier. The Data transfer rate be-tween the SR176 and the reader is  106kbit/s in both reception and emission modes.

The SR176 follows the ISO 14443 part 2 type B recommendation for radio frequency power and signal interface.