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零件编号
产品描述 (功能)
HT1380 查看數據表(PDF) - Holtek Semiconductor
零件编号
产品描述 (功能)
生产厂家
HT1380
Serial Timekeeper Chip
Holtek Semiconductor
HT1380 Datasheet PDF : 10 Pages
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HT1380/HT1381
D.C. Characteristics
Symbol
Parameter
V
DD
I
STB
Operating Voltage
Standby Current
I
DD
Operating Current
I
OH
Source Current
I
OL
Sink Current
V
IH
V
IL
f
OSC
f
SCLK
²
H
²
Input Voltage
²
L
²
Input Voltage
System Frequency
Serial Clock
Test Conditions
V
DD
¾
Conditions
¾
2V
¾
5V
2V
No load
5V
2V V
OH
=1.8V
5V V
OH
=4.5V
2V V
OL
=0.2V
5V V
OL
=0.5V
5V
¾
5V
¾
5V 32768Hz X
¢
TAL
2V
¾
5V
Ta=25
°
C
Min. Typ. Max. Unit
2
¾
5.5
V
¾
¾
100
nA
¾
¾
100
nA
¾
0.7
1.0
m
A
¾
0.7
1.2
m
A
-
0.2
-
0.4
¾
mA
-
0.5
-
1.0
¾
mA
0.7
1.5
¾
mA
2.0
4.0
¾
mA
2
¾
¾
V
¾
¾
0.8
V
¾
32768
¾
Hz
¾
¾
0.5 MHz
¾
¾
2
MHz
*
I
STB
is specified with SCLK, I/O, REST open. The clock halt bit must be set to logic 1 (oscillator
disabled).
A.C. Characteristics
Symbol
Parameter
t
DC
Data to Clock Setup
t
CDH
Clock to Data Hold
t
CDD
Clock to Data Delay
t
CL
Clock Low Time
t
CH
Clock High Time
f
CLK
Clock Frequency
Test Conditions
V
DD
Conditions
2V
¾
5V
¾
2V
¾
5V
¾
2V
¾
5V
¾
2V
¾
5V
¾
2V
¾
5V
¾
2V
¾
5V
¾
Min.
200
50
280
70
¾
¾
1000
250
1000
250
¾
D.C.
Max.
¾
¾
¾
¾
800
200
¾
¾
¾
¾
0.5
2.0
Ta=25
°
C
Unit
ns
ns
ns
ns
ns
MHz
3
September 18, 2000
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