SRI4K-SBN181GE STMICROELECTRONICS [STMicroelectronics], SRI4K-SBN181GE Datasheet - Page 8
SRI4K-SBN181GE
Manufacturer Part Number
SRI4K-SBN181GE
Description
13.56 MHz short-range contactless memory chip with 4096-bit EEPROM and anticollision functions
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.SRI4K-SBN181GE.pdf
(45 pages)
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Signal description
2
2.1
8/45
The SRI4K contactless EEPROM can be randomly read and written in block mode (each
block containing 32 bits). The instruction set includes the following nine commands:
●
●
●
●
●
●
●
●
●
The SRI4K memory is organized in three areas, as described in
resettable OTP (one time programmable) area in which bits can only be switched from 1 to
0. Using a special command, it is possible to erase all bits of this area to 1. The second area
provides two 32-bit binary counters which 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
AC0
AC1
AI09055
Figure
3. The first area is a
SRI4K
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