HT95L10P datasheet(6/52 Pages) HOLTEK

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Pin Name

I/O

Description

LCD Driver

SEG47~SEG0

I/O

LCD panel segment outputs.

Some segment outputs can be optioned to Bidirectional input/output ports by software.

(See the

²LCD Driver² function)

COM15~COM0

I/O

LCD panel common outputs.

Some common outputs can be optioned to Bidirectional input/output ports by software.

(See the

²LCD Driver² function)

VLCD

LCD driver power source.

Normal I/O

PA7~PA0

I/O

Bidirectional input/output ports.

Schmitt trigger input and CMOS output.

See mask option table for pull-high and wake-up function

PB7~PB0

I/O

Bidirectional input/output ports.

Schmitt trigger input and CMOS output.

See mask option table for pull-high function

PD7~PD0

I/O

Bidirectional input/output ports.

Schmitt trigger input and CMOS output.

See mask option table for pull-high function

Port D could be optioned to LCD signal output, see the

²Input/Output Ports² function

PE3~PE0

I/O

Bidirectional input/output ports.

Schmitt trigger input and CMOS output.

See mask option table for pull-high function

Port E could be optioned to LCD signal output, see the

²Input/Output Ports² function

PF7~PF0

I/O

Bidirectional input/output ports.

Schmitt trigger input and CMOS output.

See mask option table for pull-high function

PG3~PG0

I/O

Bidirectional input/output ports.

Schmitt trigger input and CMOS output.

See mask option table for pull-high function

Dialer I/O (See the

²Dialer I/O Function²)

HFI

Schmitt trigger input structure. An external RC network is recommended for input

debouncing.

This pin is pulled low with internal resistance of 200k

W typ.

HFO

CMOS output structure.

HDI

Schmitt trigger input structure. An external RC network is recommended for input

debouncing.

This pin is pulled high with internal resistance of 200k

W typ.

HDO

CMOS output structure.

HKS

This pin detects the status of the hook-switch and its combination with HFI/HDI can con-

trol the PO pin output to make or break the line.

CMOS output structure controlled by HKS and HFI/HDI pins and which determines

whether the dialer connects or disconnects the telephone line.

DNPO

NMOS output structure.

XMUTE

NMOS output structure. Usually, XMUTE is used to mute the speech circuit when trans-

mitting the dialer signal.

Peripherals

DTMF

This pin outputs dual tone signals to dial out the phone number. The load resistor should

not be less than 5k

MUSIC

This pin outputs the single tone that is generated by the PFD generator.

LBIN

This pin detects battery low through external R1/R2 to determine threshold voltage.

HT95LXXX

Rev. 1.20

May 26, 2004

HT95L10P 数据表(PDF) 6 Page - Holtek Semiconductor Inc

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HT95L10P 数据表(PDF) 6 Page - Holtek Semiconductor Inc

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