FM93C56LEN データシートの表示（PDF） - Fairchild Semiconductor

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FM93C56LEN

(MICROWIRE™ Bus Interface) 2048-Bit Serial EEPROM with Data Protect and Sequential Read

Fairchild Semiconductor 

Timing Diagrams (Continued)

WRITE ALL CYCLE (WRALL)

PRE

PE

tCS

CS

SK

1 0 0 A7 A6

A1 A0 D15 D14

D1 D0

DI

Start Opcode

Address

Data

Bit Bits(2)

Bits(8)

Bits(16)

High - Z

DO

93CS56:

Address bits pattern -> 0-1-x-x-x-x-x-x; (x -> Don't Care, can be 0 or 1)

Data bits pattern -> User defined

tWP

Ready

Busy

PROTECT REGISTER READ CYCLE (PRREAD)

;;;;

PRE;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

PE ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

tCS

CS

SK

DI

1 1 0 A7 A6 A1 A0 ;;;;;;;;;;;;;;

Start Opcode

Bit Bits(2)

Address

Bits(8)

;;;;;;;;;;;;;;

DO

High - Z

0 D7

;;; D1 D0

93CS56:

Dummy

Bit

;;;

Address bits pattern -> x-x-x-x-x-x-x-x; (x -> Don't Care, can be 0 or 1)

PROTECT REGISTER ENABLE CYCLE (PREN)

;;;;;;;;;

PRE

;;;;;;;;;

PE

;;;;;;;;;

tCS

CS

SK

1 0 0 A7 A6

A1 A0

DI

Start Opcode

Address

Bit Bits(2)

Bits(8)

High - Z

DO

93CS56:

Address bits pattern -> 1-1-x-x-x-x-x-x; (x -> Don't Care, can be 0 or 1)

FM93CS56 Rev. C.1

11

www.fairchildsemi.com

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