HT1382 Просмотр технического описания (PDF) - Holtek Semiconductor
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HT1382 Datasheet PDF : 29 Pages
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HT1382
I2C/3-Wire Real Time Clock
D.C. Characteristics
Ta=-40°C~85°C
Symbol
Parameter
VDD
Supply Voltage
VBAT
Battery Supply Voltage
ISTB
Standby Current
IBAT
Battery Supply Current
IDD1
Supply Current
(Low Power Mode)
IDD2
Supply Current
IDD3
Supply Current with I2C Active
IDD4
Supply Current with 3-Wire
Active
VIH
²H² Input Voltage
VIL
²L² Input Voltage
VOH
I/O High Level Output Voltage
VOL1
I/O, SCL and SDA Low Level
Output Voltage
VOL2
VCOMP
VBATHYS
IRQ Low Level Output
Voltage
VBAT Mode Compared Voltage
Hysteresis
VBAT Hysteresis
Test Conditions
VDD
Conditions
¾
¾
¾
¾
¾ VBAT=3V, ²CH²=1
¾ VBAT=3V, ²CH²=0
3V
SCL/SCLK=0Hz, ²LPM²=1
5V
3V
SCL/SCLK=0Hz, ²LPM²=0
5V
3V
SCL=400kHz
5V
3V SCLK=1MHz
5V SCLK=2MHz
¾
¾
¾
¾
3V IOH1= -1.5mA
5V IOH1= -3.0mA
3V IOL1= 3.0mA
5V IOL1= 6.0mA
3V IOL2= 1.5mA
5V IOL2= 3.0mA
¾
¾
¾
¾
¾
¾
Min.
2.7
2.0
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
0.7VDD
¾
2.7
4.5
0
0
0
0
2.40
¾
¾
Typ.
¾
¾
¾
0.8
5
15
50
70
80
150
100
300
¾
¾
¾
¾
¾
¾
¾
¾
2.55
25
40
Max.
5.5
5.5
0.1
1.2
15
30
100
150
150
300
200
500
¾
0.3VDD
¾
¾
0.4
0.4
0.4
0.4
2.70
¾
¾
Unit
V
V
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
V
V
V
V
V
V
V
V
V
mV
mV
A.C. Characteristics
VDD=2.7V~5.5V, Ta=-40°C~85°C
Power-Down Timing
Symbol
Parameter
tFSR
VDD Falling Slew Rate
Test Conditions
VDD
Conditions
¾
¾
Min.
¾
Note: in order to ensure proper timekeeping, the tFSR specification must be followed.
Typ.
¾
Max. Unit
10 V/ms
Rev. 1.40
5
May 27, 2011
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