SM5843AS1 datasheet(7/24 Pages) NPC

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SM5843A

×1

NIPPON PRECISION CIRCUITS—7

AC Electrical Characteristics

Input Clock (XTI)

Crystal oscillator

fs = 384fs (CKSLN = HIGH): VDD = 4.5 to 5.5 V, VSS = 0 V, Ta = −20 to 80 °C

fs = 256fs (CKSLN = LOW): VDD = 4.75 to 5.25 V, VSS = 0 V, Ta = −20 to 70 °C

External clock input

fs = 384fs (CKSLN = HIGH): VDD = 4.5 to 5.5 V, VSS = 0 V, Ta = −20 to 80 °C

fs = 256fs (CKSLN = LOW): VDD = 4.75 to 5.25 V, VSS = 0 V, Ta = −20 to 70 °C

Parameter

Symbol

Rating

Unit

min

typ

max

Oscillator frequency

fOSC

2.0

–

21.2

MHz

Parameter

Symbol

Rating

Unit

min

typ

max

Oscillator frequency

fOSC

1.0

–

14.2

MHz

Parameter

Symbol

Rating

Unit

min

typ

max

Clock HIGH-level pulsewidth

tCWH

–

250

Clock LOW-level pulsewidth

tCWL

–

250

Clock pulse cycle time

tXI

–

500

Parameter

Symbol

Rating

Unit

min

typ

max

Clock HIGH-level pulsewidth

tCWH

–

500

Clock LOW-level pulsewidth

tCWL

–

500

Clock pulse cycle time

tXI

–

1000

tXI

tCWH

XTI

0.5VDD

tCWL

VlH1

VlL1

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