參數(shù)資料
型號: UPD78045F
廠商: NEC Corp.
元件分類: DC/DC變換器
英文描述: 1 watt dc-dc converters
中文描述: 1瓦的DC - DC轉(zhuǎn)換器
文件頁數(shù): 50/72頁
文件大?。?/td> 510K
代理商: UPD78045F
50
m
PD78042F, 78043F, 78044F, 78045F
(b) Serial interface channel 1
(i) Three-wire serial I/O mode (SCK1: Internal clock output)
Note
C is a load capacitance of the SCK1 or SO1 output line.
(ii) Three-wire serial I/O mode (SCK1: External clock input)
Note
C is a load capacitance of the SO1 output line.
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
SCK1 cycle time
t
KCY7
V
DD
= 4.5 to 5.5 V
800
ns
3200
ns
SCK1 high, low-level width
t
KH7
V
DD
= 4.5 to 5.5 V
t
KCY7
/2
50
ns
t
KL7
t
KCY7
/2
150
ns
SI1 setup time to SCK1
t
SIK7
100
ns
SI1 hold time from SCK1
t
KSI7
400
ns
SCK1
SO1 output delay
time
t
KSO7
C = 100 pF
Note
V
DD
= 4.5 to 5.5 V
300
ns
1000
ns
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
SCK1 cycle time
t
KCY8
V
DD
= 4.5 to 5.5 V
800
ns
3200
ns
SCK1 high, low-level width
t
KH8
V
DD
= 4.5 to 5.5 V
400
ns
t
KL8
1600
ns
SI1 setup time to SCK1
t
SIK8
V
DD
= 4.5 to 5.5 V
100
ns
SI1 hold time from SCK1
t
KSI8
400
ns
SCK1
SO1 output delay
time
t
KSO8
C = 100 pF
Note
V
DD
= 4.5 to 5.5 V
300
ns
1000
ns
SCK1 rise time and fall time
t
R8
t
F8
160
ns
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