M95512-R datasheet(27/50 Pages) STMICROELECTRONICS

Teilenummer	M95512-R

Bauteilbeschribung	512-Kbit serial SPI bus EEPROM

PDF	50 Pages

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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DocID11124 Rev 21

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M95512-W M95512-R M95512-DR M95512-DF

Instructions

6.8

Write Identification Page (available only in M95512-D

devices)

The Identification Page (128 bytes) is an additional page which can be written and (later)

permanently locked in Read-only mode.

Writing this page is achieved with the Write Identification Page instruction (see Table 4).

The Chip Select signal (S) is first driven low. The bits of the instruction byte, address bytes,

and at least one data byte are then shifted in on Serial Data Input (D). Address bit A10 must

be 0, upper address bits are Don't Care, the lower address bits [A6:A0] address bits define

the byte address inside the identification page. The instruction sequence is shown in

Figure 16.

Figure 16. Write identification page sequence

MS30909V1

9 10

28 29 30 31 32 33 34 35

22 21

36 37 38

High impedance

Instruction

24-bit address

765432

Data byte

M95512-R Datenblatt(PDF) 27 Page - STMicroelectronics