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HT1612 Datasheet(PDF) 5 Page - Holtek Semiconductor Inc

Part # HT1612
Description  Timer with Dialer Interface
PDF  14 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT1612 Datasheet(HTML) 5 Page - Holtek Semiconductor Inc

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Electrical Characteristics
(FOSC=32768Hz, Ta=25
°C)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VDD
Condition
VDD
Operating Voltage
—
—
1.2
1.5
1.7
V
VIL
Input Low Voltage
1.2V~1.7V
—
VSS
—0.2VDD
V
VIL
Input High Voltage
1.2V~1.7V
—
0.8VDD
—VDD
V
ISTB
Stand-by Current
1.5V
VHK=Floating
(or VDD)
—
0.1
1
µA
IDD
Operating Current
1.5V
No load
—
10
30
µA
IOL
Output Sink Current of
INT
1.5V
VO=0.3V
500
1000
—
µA
TA
Data Setup Time
1.5V
—
1
—
—
µs
TB
Data Hold On Time
1.5V
—
2
—
—
µs
TC
Inter Digit Time
1.5V
—
5
—
—
µs
TDB
Debounce Time
(HK, TMIER)
1.5V
—
—
31.25
–
ms
RHI
Pull-High Resistance
(HK , DI, SK)
1.5V
VIN=0V
—
1
—
M
Ω
RLO
Pull-Low Resistance
(TIMER)
1.5V
VTIMER=1.5V
—
5
—
M
Ω
FOSC
System Frequency
1.5V
Crystal=32768Hz
—
32768
—
Hz
HT1612
5
5th July ’95



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