HT812D0 View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT812D0

2.8 Second LOG-PCM Speech

Holtek Semiconductor 

HT812D0

Pin No.

5~8

9~13

14

15

16

Pin Name

I/O

Internal

Connection

Description

KEY1~ KEY4 I

Pull-High

Trigger key, active low. Key features like

debounce time, pull-high resistance and repeat

can be selected by mask option.

NC

—

—

No connection

VDD

I

—

Positive power supply

AUD

O

PMOS

Open Drain

Voice output for driving an external transistor

OSC2

O

—

Oscillator output pin

Absolute Maximum Ratings*

Supply Voltage ............................... –0.3V to 6V

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

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

Operating Temperature ............. –20°C to 70°C

*Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maxi-

mum Ratings” may cause substantial damage to the device. Functional operation of this

device at other conditions beyond those listed in the specification is not implied and prolonged

exposure to extreme conditions may affect device reliability.

Electrical Characteristics

Symbol

Parameter

VDD

IDD

ISTB

IO

IOL

VIH

VIL

fOSC

Operating Voltage

Operating Current

Standby Current

Max. AUD Output Current

FLAG Sink Current

“H” Input Voltage

“L” Input Voltage

Oscillating Frequency

Test Conditions

VDD Conditions

—

—

3V

No load,

fOSC=96kHz

3V

—

3V VOH=0.6V

3V VOL=0.3V

—

—

—

—

3V ROSC=570kΩ

(Ta=25°C)

Min. Typ. Max. Unit

2.4

—

5.0

V

—

200

400

µA

—

1

3

µA

–1.5

–2

—

mA

1.5

3.0

—

mA

0.8VDD —

VDD

V

0

— 0.2VDD V

60

76

92 kHz

3

5th May ’98

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