SRT512-SBN18/1G2 STMICROELECTRONICS [STMicroelectronics], SRT512-SBN18/1G2 Datasheet - Page 8

• Manufacturer Part Number: SRT512-SBN18/1G2
• Description: 13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Signal description
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2.1
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The SRT512 contactless EEPROM can be randomly read and written in block mode (each
block containing 32 bits). The instruction set includes the following nine commands:
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The SRT512 memory is organized in three areas, as described in
an EEPROM area where all blocks behave as User blocks.
The second area provides two 32-bit binary counters that can only be decremented from
FFFF FFFFh to 0000 0000h, and gives a capacity of 4,294,967,296 units per counter.
The last area is the EEPROM memory. It is accessible by block of 32 bits and includes an
auto-erase cycle during each Write_block command.
Figure 2.
Signal description
AC1, AC0
The pads for the antenna coil. AC1 and AC0 must be directly bonded to the antenna.
Read_block
Write_block
Initiate
Pcall16
Slot_marker
Select
Completion
Reset_to_inventory
Get_UID
Die floor plan
Doc ID 13277 Rev 4
AC0
AC1
AI09055
Table
12. The first area is
SRT512