參數(shù)資料
型號: HD40A4639R
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計算機)
中文描述: 4位單片機(4位單片微計算機)
文件頁數(shù): 127/133頁
文件大小: 803K
代理商: HD40A4639R
HD404639R Series
127
Serial Interface Timing Characteristics (HD404638R, HD404639R, HD40A4638R, HD40A4639R:
V
CC
= 2.7 to 6.0 V, GND = 0 V, T
a
= –20 to +75
°
C; HD407A4639R: V
CC
= 2.7 to 5.5 V, GND = 0 V, T
a
= –20 to +75
°
C, unless otherwise specified)
During Transmit Clock Output
Item
Symbol
Pin(s)
SCK
1,
SCK
2
Test Condition
Min
Typ
Max
Unit
Notes
Transmit
clock cycle
time
t
Scyc
Load shown in figure 105
1
t
cyc
1
Transmit
clock high
width
t
SCKH
SCK
1,
SCK
2
Load shown in figure 105
0.5
t
Scyc
1
Transmit
clock low
width
t
SCKL
SCK
1,
SCK
2
Load shown in figure 105
0.5
t
Scyc
1
Transmit
clock rise
time
t
SCKr
SCK
1,
SCK
2
Load shown in figure 105
200
ns
1
Transmit
clock fall time
t
SCKf
SCK
1,
SCK
2
Load shown in figure 105
200
ns
1
Serial output
data delay
time
t
DSO
SO
1,
SO
2
Load shown in figure 105
500
ns
1
Serial input
data setup
time
t
SSI
SI
1,
SI
2
300
ns
1
Serial input
data hold
time
t
HSI
SI
1,
SI
2
300
ns
1
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