25LC640X-EP データシートの表示（PDF） - Microchip Technology

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25LC640X-EP

64K SPI™ Bus Serial EEPROM

Microchip Technology 

25AA640/25LC640/25C640

FIGURE 1-2: HOLD TIMING

CS

SCK

SO

n+2

SI

n+2

THS THH

THS THH

THZ

THV

high impedance

n+1

n

n

TSU

n+1

n

don’t care

n

HOLD

n-1

n-1

FIGURE 1-3: SERIAL INPUT TIMING

CS

TCSS

TR

Mode 1,1

SCK Mode 0,0

Tsu

THD

SI

MSB in

high impedance

SO

TCSD

TF

TCSH

TCLE

TCLD

LSB in

FIGURE 1-4: SERIAL OUTPUT TIMING

CS

THI

TLO

SCK

TV

THO

SO

MSB out

SI

don’t care

TCSH

TDIS

Mode 1,1

Mode 0,0

LSB out

DS21223A-page 4

Preliminary

© 1997 Microchip Technology Inc.

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