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UPD75P308 Datasheet(PDF) 20 Page - NEC

Part # UPD75P308
Description  4-BIT SINGLE-CHIP MICROCOMPUTER
PDF  34 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD75P308 Datasheet(HTML) 20 Page - NEC

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µPD75P308
20
SERIAL TRANSFER OPERATION
TWO-LINE AND THREE-LINE SERIAL I/O MODES (SCK: internal clock output)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
1600
ns
tKCY1/2-50
ns
150
ns
400
ns
250
ns
Output
Output
RL = 1k
Ω, CL = 100pF*
tKCY1
tKH1, tKL1
tSIK1
tKSI1
tKSO1
SCK Cycle Time
SCK High-, Low-Level Widths
SI Set-Up Time (vs. SCK
)
SI Hold Time (vs. SCK
)
SCK
SO Output
Delay Time
↑
↑
↓ →
*: RL and CL are load resistance and load capacitance of the SO output line.
TWO-LINE AND THREE-LINE SERIAL I/O MODES (SCK: external clock input)
*: RL and CL are load resistance and load capacitance of the SO output line.
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
800
ns
400
ns
100
ns
400
ns
300
ns
Input
Input
RL = 1k
Ω, CL = 100pF*
tKCY2
tKH2, tKL2
tSIK2
tKSI2
tKSO2
↑
↓ →
5
5
↑
SCK Cycle Time
SCK High-, Low-Level Widths
SI Set-Up Time (vs. SCK
)
SI Hold Time (vs. SCK
)
SCK
SO Output
Delay Time



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