SRI512 512-bit ISO14443-B contactless memory with 2 binary counters, 5 OTP blocks and anti-collision
The SRI512 is a contactless memory, powered by an externally transmitted radio wave. It contains a 512-bit user EEPROM. The memory is organized as 16 blocks of 32 bits. The SRI512 is accessed via the 13.56 MHz 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 847 kHz subcarrier. The received ASK wave is 10% modulated. The data transfer rate between the SRI512 and the reader is 106 Kbit/s in both reception and emission modes.
The SRI512 follows the ISO 14443-2 Type B recommendation for the radio-frequency power and signal interface.
技术特性
- ISO 14443-2 Type B air interface compliant
- ISO 14443-3 Type B frame format compliant
- 13.56 MHz carrier frequency
- 847 kHz subcarrier frequency
- 106 Kbit/second data transfer
- 8 bit Chip_ID based anticollision system
- 2 Count-down binary counters with automated antitearing protection
- 64-bit Unique Identifier
- 512-bit EEPROM with write protect feature
- Read_block and Write_block (32 bits)
- Internal tuning capacitor
- 1million erase/write cycles
- 40-year data retention
- Self-timed programming cycle
- 5 ms typical programming time
SRI512 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| SRI512-SBN18/1GE |
Active |
0.21 |
|
Ni/Au Wafer |
|
-20 °C-85 °C |
SRI512-SBN18/1GE |
| SRI512-W4/1GE |
Active |
0.195 |
|
US WF V.I. |
|
-20 °C-85 °C |
SRI512-W4/1GE |
| SRI512-W4/1OF |
Active |
|
|
US WF V.I. |
|
|
SRI512-W4/1OF |
DATASHEET
| 描述 |
版本 |
大小 |
| SRI512 : DS4397: 13.56 MHz short-range contactless memory chip with 4096-bit EEPROM and anticollision functions |
5 |
234KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN2319: Using the 64-bit UID in contactless RFID applications |
2 |
65KB |
| AN2866: How to design a 13.56 MHz customized tag antenna |
1 |
304KB |
TECHNICAL ARTICLES
| 描述 |
版本 |
大小 |
| TA259: Designing low-cost large-volume close-coupling contactless systems with ST contactless memories and coupler |
2 |
61KB |
TECHNICAL NOTES
| 描述 |
版本 |
大小 |
| TN0076: 提高PCB的信息追溯性 |
1 |
238KB |
FLYERS
