SRIX4K
4096-bit ISO14443-B contactless memory with 2 binary counters, anti-collision and anti-clone function-
Active
The SRIX4K is a contactless memory, powered by an externally transmitted radio wave. It contains a 4096-bit user EEPROM. The memory is organized as 128 blocks of 32 bits. The SRIX4K 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 SRIX4K and the reader is 106 Kbit/s in both reception and emission modes.
The SRIX4K follows the ISO 14443-2 Type B recommendation for the radio-frequency power and signal interface.
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Datasheet
Key Features
- 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
- France Telecom proprietary anti-clone function
- 8 bit Chip_ID based anticollision system
- 2 count-down binary counters with automated antitearing protection
- 64-bit unique identifier
- 4096-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
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DS2823: 13.56 MHz short-range contactless memory chip with 4096-bit EEPROM, anticollision and anti-clone functions
|
9.0 | 342 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
|
AN2319: Using the 64-bit UID in contactless RFID applications
|
2.1 | 65 KB |
|
AN2866: How to design a 13.56 MHz customized tag antenna
|
1.2 | 289 KB |
Technical Notes & Articles
| Description | Version | Size |
|---|---|---|
|
TA0347: Key features and benefits of STMicroelectronics short-range contactless memory ICs
|
2.0 | 100 KB |
|
TA259: Designing low-cost large-volume close-coupling contactless systems with ST contactless memories and coupler
|
2.1 | 61 KB |
|
TN0076: Improving PCB traceability with RFID technology
|
1.4 | 346 KB |
User Manual
| Description | Version | Size |
|---|---|---|
|
UM0109: Public transport ticketing demo
|
1.2 | 647 KB |
Related Tools and Software
Related Tools and Software
| Part Number | Description |
|---|---|
| M24LR-DISCOVERY | Discovery kit for M24LR04E Dual Interface EEPROM with energy harvesting |
Publications and Collaterals
Flyer
| Description | Version | Size |
|---|---|---|
|
RFID and RF memory products - Based on ISO 14443 and ISO 15693
|
1.1 | 225 KB |
Sample & Buy
Top| Part Number | Marketing Status | Package | Operating Temperature (min) | Operating Temperature (max) | Automotive Grade | Order From ST | Unit Price (US$)* @ | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SRIX4K-SBN18/1CO | Active | Ni/Au Wafer | _ | - | No data reported, please contact our Distributors | N/A | - | |||||
| SRIX4K-SBN18/1GE | Active | Ni/Au Wafer | Loose Piece | -20 | 85 | _ | - | .3 | No data reported, please contact our Distributors | N/A | - | |
| SRIX4K-W4/1GE | Active | US WF V.I. | -20 | 85 | _ | - | .3 | No data reported, please contact our Distributors | N/A | - | ||
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors (**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices. |
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