LRI64 datasheet(8/52 Pages) STMICROELECTRONICS

部件名	LRI64

功能描述	Memory tag IC at 13.56 MHz, with 64-bit unique ID and WORM user area, ISO 15693 and ISO 18000-3 Mode 1 compliant

PDF	52 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

8 / 52 page

Description

LRI64

8/52

1.1

Memory mapping

The LRI64 is organized as 15 blocks of 8 bits as shown in Figure 3. Each block is

automatically write-protected after the first valid write access.

Figure 3.

LRI64 memory mapping

The LRI64 uses the first 8 blocks (blocks 0 to 7) to store the 64-bit unique identifier (UID).

The UID is used during the anticollision sequence (Inventory). It is written, by ST, at time of

manufacture, but part of it can be customer-accessible and customer-writable, on special

request.

The LRI64 has an AFI register, in which to store the application family identifier value, which

is also used during the anticollision sequence.

The LRI64 has a DSFID register, in which to store the data storage format identifier value,

which is used for the LRI64 Inventory answer.

The five following blocks (blocks 10 to 14) are write-once read-many (WORM) memory. It is

possible to write to each of them once. After the first valid write access, the block is

automatically locked, and only read commands are possible.

AI09741

Block

Addr

01234567

UID 0

UID 1

UID 2

UID 3

UID 4

UID 5 = IC_ID

UID 6 = 02h

UID 7 = E0h

AFI (WORM Area)

DSFID (WORM Area)

WORM Area

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