HTMS1x01_8x01 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.4 — 21 May 2015
152934 10 of 57
NXP Semiconductors
HTMS1x01; HTMS8x01
HITAG µ transponder IC
9. Functional description
9.1 Memory organization
The EEPROM has a capacity of up to 1760 bit and is organized in blocks of 4 bytes each
(1 block = 32 bits). A block is the smallest access unit.
The HITAG µ transponder IC is available with different memory sizes as shown in Table 5
“Memory organization HITAG m (128-bit)”, Table 6 “Memory organization HITAG µ
Advanced (512 bit)” and Table 7 “Memory organization HITAG µ Advanced+ (1760 bit)”.
For permanent lock of blocks please refer to Section 14.9 “
LOCK BLOCK”.
9.1.1 Memory organization HITAG transponder ICs
[1] RO: Read without password, write with password
[2] R/W: Read and write without password
Table 5. Memory organization HITAG (128-bit)
Block address Content Password Access
FFh User Config
FEh PWD
03h
ISO 11784/ISO 11785 128 bit TTF data
bit3=0 R/W
[2]
bit3=1 RO
[1]
02h
01h
00h
