HT9480(1998) 查看數據表（PDF） - Holtek Semiconductor

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HT9480
(Rev.:1998)

Pager Controller

Holtek Semiconductor 

HT9480

Absolute Maximum Ratings*

Supply Voltage .............................. –0.3V to 5.5V

Input Voltage..................VSS–0.3V to VDD+0.3V

Storage Temperature................. –50°C to 125°C

Operating Temperature............... –25°C to 85°C

*Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent

damage to the device. These are stress ratings only. Functional operation of this device at

these or any other conditions above those indicated in the operational sections of this

specification is not implied and exposure to absolute maximum rating conditions for extended

periods may affect device reliability.

D.C. Characteristics

(Ta=25°C)

Symbol

Parameter

VDD

IDD

Operating Voltage

Operating Current

Test Conditions

VDD

Conditions

— 3V application

3V

No load,

fsys=153.6kHz

Min. Typ. Max. Unit

2.2 3.0 3.5 V

— 300 — µA

ISTB1

Standby Current 1

3V

No load, System

HALT (Watchdog ON)

—

200

—

µA

ISTB2

Standby Current 2

3V

No load, System

HALT (Watchdog OFF)

—

—

1

µA

VIL

Input Low Voltage for

Input Port and I/O Port

3V

—

0

—

1

V

VIH

Input High Voltage for

Input Port and I/O Port

3V

—

2.2 —

3

V

VIL1

Input Low Voltage

(RES,TMR1,BAL)

3V

—

0

—

1

V

VIH1

Input High Voltage

(RES,TMR1,BAL)

3V

—

2.2 —

3

V

VIL2

VIH2

IOL

IOH

IOL

Input Low Voltage (BAF)

Input High Voltage (BAF)

I/O Port Sink Current

I/O Port Source Current

Segment 0-34 Output

Sink Current

3V

—

3V

—

3V VOL=0.3V

3V VOH=2.7V

3V VOL=0.3V

0

— 0.9 V

1.3 —

3

V

1.7 3.4 — mA

–1 –1.9 — mA

20 44 — µA

IOH

Segment 0-34 Output

Source Current

IOL

BZ, Sink Current

IOH

BZ, Source Current

3V VOH=2.7V

3V VOL=0.3V

3V VOH=2.7V

–20 –38 — µA

1 2.5 — mA

–1 –2 — mA

5

23th Feb ’98

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