Rainbow-electronics DS1511 Manual do Utilizador descarregar pdf (Página 5)

DS1501/DS1511 Y2KC Watchdog Real-Time Clocks

5 of 20

Figure 2. Write Cycle Timing, Write-Enable-Controlled

Figure 3. Write Cycle Timing, Chip-Enable-Controlled

t

WC

t

AH

t

DS

t

AS

t

WEZ

t

DH

t

WR

t

AS

DATA INPUT

DQ0–DQ7

W

E

C

E

A0–A4

DATA OUTPUT DATA INPUT

t

WEW

VALID VALID

t

WC

t

AH

t

DS

t

AS

t

DH

t

WR

t

AS

DATA INPUT

DQ0–DQ7

W

E

C

E

A0–A4

DATA INPUT

t

CEW

VALID VALID

1 2 3 4 5 6 7 8 9 10 ... 19 20

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