M95640-DF datasheet(28/53 Pages) STMICROELECTRONICS

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M95640-DF 数据表(PDF) 28 Page - STMicroelectronics

部件名	M95640-DF

功能描述	64-Kbit serial SPI bus EEPROM with high-speed clock

PDF	53 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

28 / 53 page

Instructions

M95640-W M95640-R M95640-DF

28/53

DocID16877 Rev 19

6.8

Write Identification Page (available only in M95640-D

devices)

The Identification Page (32 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 3). 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 [A4: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

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