NR8576AA データシートの表示（PDF） - Nippon Precision Circuits

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NR8576AA

Real-time clock module

Nippon Precision Circuits  

NR8576 Series

AC Characteristics

VDD = 3.0 V, VSS = 0 V, Ta = 25 °C unless otherwise noted

Parameter

CLK clock period

CLK LOW-level pulsewidth

CLK HIGH-level pulsewidth

CE setup time

CE hold time

CE enable time

Write data setup time

Write data hold time

WR setup time

WR hold time

DATA output delay time

DATA output floating time

Clock rise time

Clock fall time

FOUT rise time (CL = 30 pF)

FOUT fall time (CL = 30 pF)

Disable time (CL = 30 pF)

Enable time (CL = 30 pF)

FOUT duty cycle (CL = 30 pF)

Wait time

Symbol

tCLK

tCLKL

tCLKH

tCES

tCEH

tCE

tSD

tHD

tWRS

tWRH

tDATD

tDZ

tr1

tf1

tr2

tf2

tHZ

tLZ

tZH

tZL

Duty

tRCV

Rating

VDD = 5 V ± 10%

VDD = 3 V ± 10%

Unit

min

max

min

max

0.75

7800

1.5

7800

µs

0.375

3900

0.75

3900

µs

0.375

3900

0.75

3900

µs

0.375

3900

0.75

3900

µs

0.375

–

0.75

–

µs

–

0.9

–

0.9

s

0.1

–

0.2

–

µs

0.1

–

0.1

–

µs

100

–

100

–

ns

100

–

100

–

ns

–

0.2

–

0.4

µs

–

0.1

–

0.2

µs

–

50

–

100

ns

–

50

–

100

ns

–

100

–

200

ns

–

100

–

200

ns

–

100

–

200

ns

–

100

–

200

ns

–

100

–

200

ns

–

100

–

200

ns

40

60

40

60

%

0.95

–

1.9

–

µs

NIPPON PRECISION CIRCUITS—5

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