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
文件頁數(shù): 51/72頁
文件大?。?/td> 510K
代理商: UPD78045F
51
m
PD78042F, 78043F, 78044F, 78045F
(iii)
3-wire serial I/O mode with automatic transmission/reception function (SCK1: internal clock
output)
Note
C is a load capacitance of the SCK1 or SO1 output line.
(iv)
3-wire serial I/O mode with automatic transmission/reception function (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
KCY9
V
DD
= 4.5 to 5.5 V
800
ns
3200
ns
SCK1 high, low-level width
t
KH9
V
DD
= 4.5 to 5.5 V
t
KCY9
/2
50
ns
t
KL9
t
KCY9
/2
150
ns
SI1 setup time to SCK1
t
SIK9
100
ns
SI1 hold time from SCK1
t
KSI9
400
ns
SCK1
SO1 output delay time t
KSO9
C = 100 pF
Note
V
DD
= 4.5 to 5.5 V
300
ns
1000
ns
SCK1
STB
t
SBD
t
KCY9
/2
100
t
KCY9
/2 + 100
ns
Strobe signal high level width
t
SBW
t
KCY9
30
t
KCY9
+
30
ns
Busy signal setup time (to busy
signal detection timing)
t
BYS
100
ns
Busy signal hold time (to busy
signal detection timing)
t
BYH
100
ns
Busy inactive
SCK1
t
SPS
2t
KCY9
ns
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
SCK1 cycle time
t
KCY10
V
DD
= 4.5 to 5.5 V
800
ns
3200
ns
SCK1 high, low-level width
t
KH10
V
DD
= 4.5 to 5.5 V
400
ns
t
KL10
1600
ns
SI1 setup time to SCK1
t
SIK10
100
ns
SI1 hold time from SCK1
t
KSI10
400
ns
SCK1
SO1 output delay
time
t
KSO10
C = 100 pF
Note
V
DD
= 4.5 to 5.5 V
300
ns
1000
ns
SCK1 rise time and fall time
t
R10
t
F10
160
ns
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