Rainbow-electronics DS1254 Uživatelský manuál stáhnout pdf (Strana 11)

DS1254

11 of 17

Figure 6. MEMORY WRITE CYCLE TIMING, CHIP-ENABLE CONTROLLED

(Notes 5, 7, 8, 10, 11, 12, and 13)

Figure 7. READ CYCLE TO PHANTOM CLOCK

Figure 8. WRITE CYCLE TO PHANTOM CLOCK

t

WC

t

AH2

t

AW

t

DS

t

DH2

t

COE

t

ODW

t

WP

ADDRESS

CE

WE

DQ0–DQ7

DATA IN

STABLE

t

RC

CE

OE

DQ0

t

CO

t

OE

t

COE

t

COE

t

OD

t

OD

OUTPUT

DATA VALID

t

RR

WE = V

IH

t

WC

t

WR

t

DS

t

DH1

t

WP

WE

CE

DQ0

DATA IN

STABLE

t

WP

OE = V

IH

t

DH2

T

AH2

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 17

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