SRIX4K 데이터 시트보기 (PDF) - STMicroelectronics
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SRIX4K Datasheet PDF : 47 Pages
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Signal description
SRIX4K
The SRIX4K contactless EEPROM can be randomly read and written in block mode (each
block containing 32 bits). The instruction set includes the following ten commands:
● Read_block
● Write_block
● Initiate
● Pcall16
● Slot_marker
● Select
● Completion
● Reset_to_inventory
● Authenticate
● Get_UID
The SRIX4K memory is organized in three areas, as described in Figure 12. The first area is
a 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. Die floor plan
AC0
AC1
AI09055
2
Signal description
2.0.1
AC1, AC0
The pads for the antenna coil. AC1 and AC0 must be directly bonded to the antenna.
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