SRIX4K

Features:

 ISO 14443 - 2 Type B Air Interface Compliant
 ISO 14443 - 3 Type B Frame Format Compliant
 13.56MHz Carrier Frequency
847kHz Sub-carrier Frequency
106 Kbit/s Data Transfer
 France Telecom Proprietary Anti-Clone
Function
 8 bits Chip_ID based anticollision system
2 Count-Down Binary Counters
32 bits each
232 units to be counted-down
 64-bit Unique Identifier
 4096-bit EEPROM with Write Protect Feature
READ BLOCK & WRITE BLOCK (32 Bits)
Internal Tuning Capacitor
1million ERASE/WRITE Cycles
 10-Year Data Retention
 Self-Timed Programming Cycle
 5ms Typical Programming Time

Description

The SRIX4K is a contactless memory, powered by an externally transmitted radio wave. It contains a 4096-bit user EEPROM fabricated with STMicroelectronics CMOS technology. The memory is organised as 128 blocks of 32 bits. The SRIX4K is accessed via the 13.56MHz carrier. Incoming data are demodulated and decoded from the received Amplitude Shift Keying (ASK) modulation signal and outgoing data are generated by load variation using Bit Phase Shift Keying (BPSK) coding of a 847kHz sub-carrier. The received ASK wave is 10% modulated. The Data transfer rate between the SRIX4K and the reader is 106Kbit/s in both reception and emission modes.

The SRIX4K follows the ISO 14443 part 2 type B recommendation for the radio-frequency power and signal interface.