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HT1382 Datasheet(PDF) 5 Page - Holtek Semiconductor Inc

Part # HT1382
Description  I2C/3-Wire Real Time Clock
PDF  29 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT1382 Datasheet(HTML) 5 Page - Holtek Semiconductor Inc

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D.C. Characteristics
Ta=
-40°C~85°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
V
DD
Supply Voltage
¾¾
2.7
¾
5.5
V
V
BAT
Battery Supply Voltage
¾¾
2.0
¾
5.5
V
I
STB
Standby Current
¾
V
BAT=3V,
²CH²=1
¾¾
0.1
mA
I
BAT
Battery Supply Current
¾
V
BAT=3V,
²CH²=0
¾
0.8
1.2
mA
I
DD1
Supply Current
(Low Power Mode)
3V
SCL/SCLK=0Hz,
²LPM²=1
¾
515
mA
5V
¾
15
30
mA
I
DD2
Supply Current
3V
SCL/SCLK=0Hz,
²LPM²=0
¾
50
100
mA
5V
¾
70
150
mA
I
DD3
Supply Current with I
2C Active
3V
SCL=400kHz
¾
80
150
mA
5V
¾
150
300
mA
I
DD4
Supply Current with 3-Wire
Active
3V
SCLK=1MHz
¾
100
200
mA
5V
SCLK=2MHz
¾
300
500
mA
V
IH
²H² Input Voltage
¾¾
0.7V
DD
¾¾
V
V
IL
²L² Input Voltage
¾¾
¾
¾
0.3V
DD
V
V
OH
I/O High Level Output Voltage
3V
I
OH1=
-1.5mA
2.7
¾¾
V
5V
I
OH1=
-3.0mA
4.5
¾¾
V
V
OL1
I/O, SCL and SDA Low Level
Output Voltage
3V
I
OL1= 3.0mA
0
¾
0.4
V
5V
I
OL1= 6.0mA
0
¾
0.4
V
V
OL2
IRQ Low Level Output
Voltage
3V
I
OL2= 1.5mA
0
¾
0.4
V
5V
I
OL2= 3.0mA
0
¾
0.4
V
V
COMP
V
BAT Mode Compared Voltage
¾¾
2.40
2.55
2.70
V
Hysteresis
¾¾
¾
25
¾
mV
V
BATHYS
V
BAT Hysteresis
¾¾
¾
40
¾
mV
A.C. Characteristics
VDD=2.7V~5.5V, Ta=
-40°C~85°C
Power-Down Timing
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
t
FSR
VDD Falling Slew Rate
¾¾
¾
¾
10
V/ms
Note: in order to ensure proper timekeeping, the tFSR specification must be followed.
HT1382
I2C/3-Wire Real Time Clock
Rev. 1.40
5
May 27, 2011



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