AT45D081中文资料(7)

AT45D081

11Detailed Bit-Level Read Timing – Inactive Clock Polarity High Main Memory Page Read

Buffer Read

Status Register Read SI 01010X X X CS

SO SCK 1234561626364656667X X

HIGH-IMPEDANCE D 7D 6D 5DATA OUT

COMMAND OPCODE

MSB

tSU

tV

D 4

68SI 01010X X X CS

SO SCK 1234537383940414243X X

HIGH-IMPEDANCE D 7D 6D 5DATA OUT

COMMAND OPCODE

MSB

tSU

tV

D 4

44SI 01010111

CS

SO SCK 123457891011121718

HIGH-IMPEDANCE D 7D 6D 5STATUS REGISTER OUTPUT

COMMAND OPCODE

MSB tSU

tV 6D 4D 0D 7LSB MSB

D 6

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AT45D081 12Table 1

Main Memory Page Read Buffer 1

Read

Buffer 2

Read

Main Memory

Page to Buffer 1

Transfer

Main Memory

Page to Buffer 2

Transfer

Main Memory

Page to Buffer 1

Compare

Main Memory

Page to Buffer 2

Compare

Buffer 1

Write

Buffer 2

Write

Opcode

52H54H56H53H55H60H61H84H87H 000000011 111111100 000001100 111110000 000000000 011010011 101100001 000110101 r X X r r r r X X r X X r r r r X X r X X r r r r X X PA11X X PA11PA11P A11P A11X X PA10X X PA10PA10P A10P A10X X P A9X X P A9P A9PA9PA9X X P A8X X P A8P A8PA8PA8X X P A7X X P A7P A7PA7PA7X X P A6X X P A6P A6PA6PA6X X P A5X X P A5P A5PA5PA5X X P A4X X P A4P A4PA4PA4X X P A3X X P A3P A3PA3PA3X X P A2X X P A2P A2PA2PA2X X P A1X X P A1P A1PA1PA1X X P A0X X P A0P A0PA0PA0X X BA8BFA8BFA8X X X X BFA8BFA8 BA7BFA7BFA7X X X X BFA7BFA7 BA6BFA6BFA6X X X X BFA6BFA6 BA5BFA5BFA5X X X X BFA5BFA5 BA4BFA4BFA4X X X X BFA4BFA4 BA3BFA3BFA3X X X X BFA3BFA3 BA2BFA2BFA2X X X X BFA2BFA2 BA1BFA1BFA1X X X X BFA1BFA1 BA0BFA0BFA0X X X X BFA0BFA0 X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

•

•

•

X (64th bit)

X (Don’t Care) r (reserved bits)

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