Rainbow-electronics DS1254 Manual do Utilizador descarregar pdf (Página 9)

DS1254

9 of 17

AC ELECTRICAL CHARACTERISTICS (0

°

C to +70

°

C; V

CC

= 3.3V±10%)

PARAMETER SYMBOL MIN MAX UNITS NOTES

Read Cycle Time t

RC

150 nS

Address Access Time t

AAC

150 nS

OE to Output Valid

t

OE

75 nS

CE to Output Valid

t

CO

150 nS

CE or OE to Output Active

t

COE

5 nS 2

Output High-Z from Deselection t

OD

70 nS 2

Output Hold from Address Change t

OH

5 nS

Write Cycle Time t

WC

150 nS

WE , CE Pulse Width

t

WP

100 nS 5

Address Setup Time t

AW

0 nS

t

AH1

5 nS 6

Address Hold Time

t

AH2

25 nS 7

Output High-Z from WE

t

ODW

70 nS 2

Output Active fromWE

t

OEW

5 nS 2

Data Setup Time t

DS

60 nS 8

t

DH1

0 nS 6

Data Hold Time

t

DH2

20 nS 8

Read Recovery

(Clock Access Only)

t

RR

20 nS

Write Recovery

(Clock Access Only)

t

WR

20 nS

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