參數(shù)資料
型號(hào)： HCD40C4344R
廠商： Hitachi,Ltd.
英文描述： 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī))
中文描述： 4位HMCS400系列微電腦（4位單片微計(jì)算機(jī)）
文件頁(yè)數(shù)： 93/100頁(yè)
文件大小： 610K
代理商： HCD40C4344R
HD404344R Series/HD404394 Series
93
Serial Interface Timing Characteristics (HD404344R, HD404342R, HD404341R, HD40C4344R,
HD40C4342R, HD40C4341R: V
CC
= 2.5 to 5.5 V, GND = 0 V, T
a
= –20 to +75
°
C, HCD404344R,
HCD40C4344R: V
CC
= 2.5 to 5.5 V, GND = 0 V, T
a
= +75
°
C, HD404394, HD404392, HD404391,
HD4074344, HD4074394: 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
Pins
SCK
Test Condition Min
Typ
Max
Unit
Note
Transmit clock cycle time
t
Scyc
Load shown in
figure 71
1
—
—
t
cyc
1
Transmit clock high width
t
SCKH
SCK
Load shown in
figure 71
0.4
—
—
t
Scyc
1
Transmit clock low width
t
SCKL
SCK
Load shown in
figure 71
0.4
—
—
t
Scyc
1
Transmit clock rise time
t
SCKr
SCK
Load shown in
figure 71
—
—
80
ns
1
Transmit clock fall time
t
SCKf
SCK
Load shown in
figure 71
—
—
80
ns
1
Serial output data delay time
t
DSO
SO
Load shown in
figure 71
—
—
300
ns
1
Serial input data setup time
t
SSI
t
HSI
SI
100
—
—
ns
1
Serial input data hold time
SI
200
—
—
ns
1
During Transmit Clock Input
Item
Symbol
Pins
SCK
SCK
SCK
SCK
SCK
Test Condition Min
Typ
Max
Unit
Note
Transmit clock cycle time
t
Scyc
t
SCKH
t
SCKL
t
SCKr
t
SCKf
1
—
—
t
cyc
t
Scyc
t
Scyc
ns
1
Transmit clock high width
0.4
—
—
1
Transmit clock low width
0.4
—
—
1
Transmit clock rise time
—
—
80
1
Transmit clock fall time
—
—
80
ns
1
Serial output data delay time t
DSO
SO
Load shown in
figure 71
—
—
300
ns
1
Serial input data setup time
t
SSI
t
HSI
SI
100
—
—
ns
1
Serial input data hold time
Note:
1. Refer to figure 70.
SI
200
—
—
ns
1
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