SM1126 View Datasheet(PDF) - Nippon Precision Circuits

Part Name

Description

MFG CO.

SM1126

Melody IC with Built-in SRAM

Nippon Precision Circuits  

1 2 3 4 5 6 7 8 9 10 Next

SM1126 Series

AC Characteristics

Ta = −20 to 70 °C, VSS = 0 V, VDD = 2.0 to 3.6 V

Parameter

Symbol

Condition

Rating

Unit

min

typ

max

OSC pulse cycle

tOSC

4.0

–

–

µs

OSC HIGH-level pulsewidth

OSC LOW-level pulsewidth

OSC pulse rise time

tOWH

2.0

–

tOWL

“OSC input pulse (external clock

input version)” timing

2.0

–

–

µs

–

µs

tOr

–

–

200

ns

OSC pulse fall time

tOf

–

–

200

ns

SC pulsewidth

tSC

4.0

–

–

µs

SC HIGH-level pulsewidth

tSWH

2.0

–

–

µs

SC LOW-level pulsewidth

tSWL

“SC input pulse” timing

2.0

–

–

µs

SC pulse rise time

tSr

–

–

200

ns

SC pulse fall time

tSf

–

–

200

ns

SIO-SC setup time

tDS

2.0

–

–

µs

SIO-SC hold time

ST input write pulsewidth

ST input write pulse rise time

tDH

2.0

–

tWP

“SC-SIO-ST serial input pulse”

timing

2.0

–

–

µs

–

µs

tWr

–

–

200

ns

ST input write pulse fall time

tWf

–

–

200

ns

SIO output enable delay

SIO output disable delay

tOE

“SIO parity check G-flag output

–

tOD

data” timing

–

–

600

ns

–

600

ns

OSC input pulse (external clock input version)

t OWH

t OWL

t OSC

t Of

0.9VDD

0.1VDD

t Or

VDD

0.5VDD

VSS

SC input pulse

t SWH

t SC

t OSWWLL

0.9VDD

0.1VDD

t Sf

t Sr

VDD

0.5VDD

VSS

NIPPON PRECISION CIRCUITS—4

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