參數(shù)資料
型號: HD4074449
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer(4位單片微計算機(jī))
中文描述: 4位HMCS400系列微機(jī)(4位單片微計算機(jī))
文件頁數(shù): 118/123頁
文件大?。?/td> 726K
代理商: HD4074449
HD404449 Series
118
Serial Interface Timing Characteristics (HD404448, HD404449: V
CC
= 2.7 to 6.0 V, GND = 0 V, T
a
= –
20
°
C to +75
°
C; HD4074449: V
CC
= 2.7 to 5.5 V, GND = 0 V, T
a
= –20
°
C to +75
°
C, unless otherwise
specified)
During Transmit Clock Output
Item
Symbol Pin
Min
Typ
Max
Unit
Test Condition
Note
Transmit clock cycle
time
t
Scyc
SCK
1
,
SCK
2
1.0
t
cyc
Load shown in figure 99
1
Transmit clock high
width
t
SCKH
SCK
1
,
SCK
2
0.5
t
Scyc
Load shown in figure 99
1
Transmit clock low
width
t
SCKL
SCK
1
,
SCK
2
0.5
t
Scyc
Load shown in figure 99
1
Transmit clock rise time t
SCKr
Transmit clock fall time
SCK
1
,
SCK
2
SCK
1
,
SCK
2
SO
1
, SO
2
200
ns
Load shown in figure 99
1
t
SCKf
t
DSO
200
ns
Load shown in figure 99
1
Serial output data delay
time
500
ns
Load shown in figure 99
1
Serial input data setup
time
t
SSI
SI
1
, SI
2
300
ns
1
Serial input data hold
time
Note:
1. Refer to figure 98.
t
HSI
SI
1
, SI
2
300
ns
1
During Transmit Clock Input
Item
Symbol Pin
Min
Typ
Max
Unit
Test Condition
Note
Transmit clock cycle
time
t
Scyc
SCK
1
,
SCK
2
1.0
t
cyc
1
Transmit clock high
width
t
SCKH
SCK
1
,
SCK
2
0.5
t
Scyc
1
Transmit clock low
width
t
SCKL
SCK
1
,
SCK
2
0.5
t
Scyc
1
Transmit clock rise time t
SCKr
Transmit clock fall time
SCK
1
,
SCK
2
SCK
1
,
SCK
2
SO
1
, SO
2
200
ns
1
t
SCKf
t
DSO
200
ns
1
Serial output data delay
time
500
ns
Load shown in figure 99
1
Serial input data setup
time
t
SSI
SI
1
, SI
2
300
ns
1
Serial input data hold
time
Note:
1. Refer to figure 98.
t
HSI
SI
1
, SI
2
300
ns
1
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參數(shù)描述
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