SM1125V 查看數據表（PDF） - Nippon Precision Circuits

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SM1125V

Multimelody IC for Pagers

Nippon Precision Circuits  

SM1125 series

AC Characteristics

Unless otherwise noted Ta = −20 to 70°C, VSS = 0V, VDD = 1.5 to 3.6V

Parameter

OSC pulse cycle

OSC HIGH-level pulsewidth

OSC LOW-level pulsewidth

OSC pulse rise time

OSC pulse fall time

SC pulse cycle

SC HIGH-level pulsewidth

SC LOW-level pulsewidth

SC pulse rise time

SC pulse fall time

SI-SC setup time

SI-SC hold time

Symbol

Condition

min

t OSC

5.0

t OWH

2.0

t OWL

“OSC input pulse (External clock

input option)” timing

2.0

t Or

–

t Of

–

t SC

5.0

t SWH

2.0

t SWL

“SC input pulse” timing

2.0

t Sr

–

t Sf

–

t DS

2.0

“SC-SI serial input pulse” timing

t DH

2.0

OSC input pulse (External clock input option)

SC input pulse

t OWH

tOSC

t OWL

0.9VDD

0.1VDD

t Of

t SWH

t SC

t SWL

SC-SI serial input pulse

0.9VDD

0.1VDD

t Sf

SC

t DS

t DH

SI

Rating

Unit

typ

max

–

–

µs

–

–

µs

–

–

µs

–

200

ns

–

200

ns

–

–

µs

–

–

µs

–

–

µs

–

200

ns

–

200

ns

–

–

µs

–

–

µs

VIH

0.5VDD

VIL

t Or

VIH

0.5VDD

VIL

t Sr

VIH

0.5VDD

VIL

VIH

0.5VDD

VIL

SEIKO NPC CORPORATION —4

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