Pin No.

Pin Name

I/O

Internal

Connection

Description

5~12

KEY1~ KEY8

I

Pull-High

Trigger key, active low. Key features such as

debounce time, pull-high resistance and repeat can

be selected by mask option.

13

NC

—

—

No connection

14

VDD

I

—

Positive power supply

15

AUD

O

PMOS

Open Drain

Voice output for driving an external transistor

16

OSC2

O

—

Oscillator output pin

Absolute Maximum Ratings*

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

Storage Temperature ............... –50

Operating Temperature ............. –20

*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

(Ta=25

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Conditions

Operating Voltage

—

—

2.4

—

5.0

V

Operating Current

3V

No load,

—200

400

Standby Current

3V

—

—

1

3

Max. AUD Output Current

3V

–1.5

–2

—

mA

FLAG Sink Current

3V

1.5

3.0

—

mA

“H” Input Voltage

—

—

V

“L” Input Voltage

—

—

0

—

V

Oscillating Frequency

3V

Ω

76

96

116

kHz

HT813D0

3

5th May ’98