25AA010AT-ESLASHST datasheet(9/28 Pages) MICROCHIP

No. de pieza	25AA010AT-E/ST

Descripción Electrónicos	1K SPI Bus Serial EEPROM

PDF	28 Pages

Scroll/Zoom	100%

Fabricante Electrónico	MICROCHIP [Microchip Technology]

Página de inicio	http://www.microchip.com

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9 / 28 page

Preliminary

DS21832C-page 9

25AA010A/25LC010A

2.4

Write Enable (WREN) and Write

Disable (WRDI)

The 25XX010A contains a write enable latch.

See

Table 2-4 for the Write-Protect Functionality Matrix.

This latch must be set before any write operation will be

completed internally. The WREN instruction will set the

latch, and the WRDI will reset the latch.

The following is a list of conditions under which the

write enable latch will be reset:

• Power-up

• WRDI instruction successfully executed

• WRSR instruction successfully executed

• WRITE instruction successfully executed

•WP pin is brought low

FIGURE 2-4:

WRITE ENABLE SEQUENCE (WREN)

FIGURE 2-5:

WRITE DISABLE SEQUENCE (WRDI)

SCK

high-impedance

SCK

2345

high-impedance

25AA010AT-E/ST Datasheet(PDF) 9 Page - Microchip Technology