MSM6542-03 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM6542-03

REAL TIME CLOCK WITH PERIODIC AND ALARM OUTPUT

Oki Electric Industry 

¡ Semiconductor

MSM6542-01/02/03

80-xxx

Read mode (ALE is always at VDD.)

Rating

CS1 set-up time

CS1 hold time

Address stable before READ

Address stable after READ

RD to data

Data hold

RD/WR recovery time

(VDD = 5V ±10%, Ta = –40 to +85°C (in the 80 mode for the MSM6542-01/03))

Symbol

Condition

Min. Typ. Max. Unit

tC1S

–

1000

–

–

ns

tC1H

–

1000

–

–

ns

tAR

–

20

–

–

ns

tRA

–

20

–

–

ns

tRD

CL = 150 pF

–

–

120

ns

tDR

–

10

–

45

ns

tRCV

–

100

–

–

ns

CS1

A0 ~ A3

CS0

RD

D0 ~ D3

(Output)

VIH2

tC1S tAR

VIH1

VIL1

VIH2

tRA tC1H

VIH1

VIL1

tRD

VIL1

VIH1

tRCV

tDR

VOH VOH

VOL VOL

VIH1

"Z"

VIH1 = 2.2V

VIL1 = 0.8V

VIH2

=

4

5

VDD

VIL2

=

1

5

VDD

VOH = 2.2V

VOL = 0.8V

75

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