參數(shù)資料
型號(hào): 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(yè)數(shù): 47/72頁(yè)
文件大?。?/td> 510K
代理商: UPD78045F
47
m
PD78042F, 78043F, 78044F, 78045F
(2) Serial interface (T
A
= –40 to +85 °C, V
DD
= 2.7 to 5.5 V)
(a) Serial interface channel 0
(i) Three-wire serial I/O mode (SCK0: Internal clock output)
Note
C is a load capacitance of the SCK0 or SO0 output line.
(ii) Three-wire serial I/O mode (SCK0: External clock input)
Note
C is a load capacitance of the SO0 output line.
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
SCK0 cycle time
t
KCY1
V
DD
= 4.5 to 5.5 V
800
ns
3200
ns
SCK0 high, low-level width
t
KH1
V
DD
= 4.5 to 5.5 V
t
KCY1
/2
50
ns
t
KL1
t
KCY1
/2
150
ns
SI0 setup time to SCK0
t
SIK1
100
ns
SI0 hold time from SCK0
t
KSI1
400
ns
SCK0
SO0 output
delay time
t
KSO1
C = 100 pF
Note
V
DD
= 4.5 to 5.5 V
300
ns
1000
ns
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
SCK0 cycle time
t
KCY2
V
DD
= 4.5 to 5.5 V
800
ns
3200
ns
SCK0 high, low-level width
t
KH2
V
DD
= 4.5 to 5.5 V
400
ns
t
KL2
1600
ns
SI0 setup time to SCK0
t
SIK2
V
DD
= 4.5 to 5.5 V
100
ns
SI0 hold time from SCK0
t
KSI2
400
ns
SCK0
SO0 output
delay time
t
KSO2
C = 100 pF
Note
V
DD
= 4.5 to 5.5 V
300
ns
1000
ns
SCK0 rise time and fall time
t
R2
t
F2
160
ns
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