HT814D0 データシートの表示（PDF） - Holtek Semiconductor

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HT814D0

8.4-Second LOG-PCM Speech

Holtek Semiconductor 

HT814D0

Pad Description

Pad No. Pad Name

1~3

KEY10~KEY12

4

VDD

5

AUD

6

OSC2

7

OSC1

8

FLAG1

9

VSS

10

FLAG2

11~19 KEY1~KEY9

I/O

Internal

Connection

Description

Trigger key, active low. Key features such as

I Pull-high debounce time, pull-high resistance and repeat

(by mask option)

¾

¾

Positive power supply

O

PMOS

Open Drain

Voice output for driving an external transistor

O

¾

Oscillator output pin

I

¾

Oscillator input pin

O

NMOS

Open Drain

3HzB/6HzB flash output, busy output,

end-pulse or voice output indication (by mask

option). Open drain, active low output.

¾

¾

Negative power supply, ground

O

NMOS 3Hz/6Hz flash output or busy output (by mask

Open Drain option). Open drain, active low output.

Trigger key, active low. Key features such as

I Pull-high debounce time, pull-high resistance and repeat

(by mask option)

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 ²Absolute Maxi-

mum Ratings² 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 expo-

sure to extreme conditions may affect device reliability.

4

March 15, 2000

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