參數(shù)資料
型號: UPD75512
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁數(shù): 50/64頁
文件大?。?/td> 494K
代理商: UPD75512
μ
PD75512(A)
50
Parameter
Symbol
t
KCY1
Conditions
MIN.
1600
3800
TYP.
MAX.
Unit
ns
ns
SCK Cycle Time
V
DD
= 4.5 to 6.0 V
SCK High-, Low-Level
Widths
t
KL1
t
KH1
V
DD
= 4.5 to 6.0 V
(t
KCY1
/2)-50
(t
KCY1
/2)
-150
150
ns
ns
ns
SI Set-Up Time (vs. SCK
) t
SIK1
SI Hold Time (vs. SCK
) t
KSI1
SCK
↓→
SO Output
Delay Time
400
ns
ns
t
KSO1
R
L
= 1 k
,
C
L
= 100 pF*
V
DD
= 4.5 to 6.0 V
250
1000
ns
*: R
L
and C
L
are load resistance and load capacitance of the SO output line.
Parameter
Symbol
t
KCY2
Conditions
MIN.
800
3200
TYP.
MAX.
Unit
ns
ns
SCK Cycle Time
V
DD
= 4.5 to 6.0 V
SCK High-, Low-Level
Widths
t
KL2
t
KH2
V
DD
= 4.5 to 6.0 V
400
1600
100
ns
ns
ns
SI Set-Up Time (vs. SCK
) t
SIK2
SI Hold Time (vs. SCK
)
SCK
↓→
SO Output
Delay Time
t
KSI2
t
KSO2
400
ns
ns
R
L
= 1 k
, C
L
= 100 pF*
V
DD
= 4.5 to 6.0 V
300
1000
ns
*: R
L
and C
L
are load resistance and load capacitance of the SO output line.
(2)
Serial Transfer Operation
(a)
Two-Line and Three-Line Serial I/O Modes (SCK: internal clock output)
(b)
Two-Line and Three-Line Serial I/O Modes (SCK: external clock input)
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