Rainbow-electronics DS1543 Manual do Utilizador descarregar pdf (Página 12)

DS1543

12 of 17

WRITE CYCLE, AC CHARACTERISTICS (V

CC

= 5.0V ±10%)

70 ns access 100 ns access

PARAMETER SYMBOL

MIN MAX MIN MAX

UNITS NOTES

Write Cycle Time t

WC

70 100 ns

Address Access Time t

AS

00 ns

WE Pulse Width

t

WEW

50 70 ns

CE Pulse Time

t

CEW

60 75 ns

Data Setup Time t

DS

30 40 ns

Data Hold time t

DH

00 ns

Address Hold Time t

AH

55 ns

WE Data Off Time

t

WEZ

25 35 ns

Write Recovery Time t

WR

55 ns

WRITE CYCLE, AC CHARACTERISTICS (V

CC

= 3.3V ±10%)

120 ns access 150 ns access

PARAMETER SYMBOL

MIN MAX MIN MAX

UNITS NOTES

Write Cycle Time t

WC

120 150 ns 5

Address Setup Time t

AS

0 0 ns 5

WE Pulse Width

t

WEW

100 130 ns 5

CE Pulse Width

t

CEW

110 140 ns 5

Data Setup Time t

DS

80 90 ns 5

Data Hold Time t

DH

0 0 ns 5

Address Hold Time t

AH

0 0 ns 5

WE Data Off Time

t

WEZ

40 50 ns 5

Write Recovery Time t

WR

10 10 ns 5

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