MB89181 datasheet(34/50 Pages) FUJITSU

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MB89180 Series

(5) Serial I/O Timing

(VCC = +5.0 V

±10%, AVSS = VSS= 0.0 V, TA = –40

°C to +85°C)

* : For information on tinst, see “(4) Instruction Cycle.”

Parameter

Symbol

Condition

Value

Unit

Remarks

Min.

Max.

Serial clock cycle time

tSCYC

SCK

Internal shift

clock mode

2 tinst*—

µs

SCK

↓ → SO time

tSLOV

SCK, SO

–200

200

Valid SI

→ SCK ↑

tIVSH

SI, SCK

0.5 tinst*—

µs

SCK

↑ → valid SI hold time

tSHIX

SCK, SI

0.5 tinst*—

µs

Serial clock “H” pulse width

tSHSL

SCK

External shift

clock mode

1 tinst*—

µs

Serial clock “L” pulse width

tSLSH

SCK

1 tinst*—

µs

SCK

↓ → SO time

tSLOV

SCK, SO

200

Valid SI

→ SCK ↑

tIVSH

SI, SCK

0.5 tinst*—

µs

SCK

↑ → valid SI hold time

tSHIX

SCK, SI

0.5 tinst*—

µs

Internal Shift Clock Mode

External Shift Clock Mode

tSCYC

tSLOV

0.2 V cc

tSHIX

tIVSH

0.8 V cc

SCK

0.2 V cc

0.8 V cc

0.8 V

2.4 V

0.8 V

2.4 V

0.8 V

tSLSH

tSLOV

0.2 VCC

tSHIX

tIVSH

0.8 VCC

SCK

0.2 VCC

0.8 VCC

0.8 V

2.4 V

0.2 VCC

0.8 VCC

0.2 VCC

0.8 VCC

tSHSL

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