HT1612 View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT1612

Timer with Dialer Interface

Holtek Semiconductor 

HT1612

Electrical Characteristics

(FOSC=32768Hz, Ta=25°C)

Symbol

Parameter

Test Condition

VDD

Condition

VDD Operating Voltage

—

—

VIL Input Low Voltage

1.2V~1.7V

—

VIL Input High Voltage

1.2V~1.7V

—

ISTB Stand-by Current

1.5V

VHK=Floating

(or VDD)

IDD Operating Current

1.5V No load

IOL

Output Sink Current of

INT

1.5V

VO=0.3V

Min. Typ. Max. Unit

1.2 1.5 1.7 V

VSS

— 0.2VDD V

0.8VDD — VDD V

—

0.1

1

µA

—

10

30 µA

500 1000 — µA

TA

Data Setup Time

TB

Data Hold On Time

TC

Inter Digit Time

TDB

Debounce Time

(HK, TMIER)

RHI

Pull-High Resistance

(HK , DI, SK)

1.5V

—

1.5V

—

1.5V

—

1.5V

—

1.5V VIN=0V

1

—

—

µs

2

—

—

µs

5

—

—

µs

— 31.25 –

ms

—

1

— MΩ

RLO

Pull-Low Resistance

(TIMER)

1.5V VTIMER=1.5V

—

5

— MΩ

FOSC System Frequency

1.5V Crystal=32768Hz — 32768 — Hz

5

5th July ’95

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