25AA040-ST View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

25AA040-ST

4K SPI™ Bus Serial EEPROM

Microchip Technology 

25AA040/25LC040/25C040

FIGURE 1-1:

HOLD TIMING

CS

SCK

SO

n+2

SI

n+2

17

16

17

16

18

19

High-impedance

n+1

n

n

Don’t Care

5

n+1

n

n

HOLD

n-1

n-1

FIGURE 1-2:

SERIAL INPUT TIMING

CS

2

Mode 1,1

7

8

SCK Mode 0,0

56

SI

MSB in

High-impedance

SO

FIGURE 1-3:

SERIAL OUTPUT TIMING

CS

SCK

SO

SI

9

10

13

MSB out

14

Don’t Care

4

12

11

3

LSB in

3

15

ISB out

Mode 1,1

Mode 0,0

DS21204E-page 4

© 2006 Microchip Technology Inc.

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