HTG12G0 データシートの表示（PDF） - Holtek Semiconductor

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HTG12G0

Microcontroller

Holtek Semiconductor 

HTG12G0

Pad Description

Pad No. Pad name I/O Mask Option

Description

1~4,

36~81

SEG3~SEG0

SEG49~SEG4

O

—

LCD driver outputs for LCD panel segment

5

BZ

6

BZ

O

*

Sound effect output

7

VDD

I

—

Positive power supply

8

OSCI

9

OSCO

I

O

—

An external resistor between OSCI and OSCO

is needed for internal system clock.

10

T512

19

TEST1

20

TEST2

26

T1D

O

For test mode only

I

I

—

TEST1 and TEST2 must be open when the

HTG12G0 is in normal operation (with an

O

internal pull high resistor)

11~18 COM7~COM0 O

—

Output for LCD panel common plate

21~24 PS3~PS0

Pull-high or

I

None

4-bit port for input only

**

25

VSS

I

—

Negative power supply, GND

27

PA1

28

PA0

CMOS or

O

NMOS

2-bit latch port for output only

Open Drain

29

XIN

30

XOUT

I

O

—

32768Hz crystal oscillator for time base

31~34 PP0~PP3

Pull-high or

I

None

4-bit port for input only

**

35

RES

I

—

Input for reset LSI inside

Reset is active at logical low level

*: 6 internal sources deriving from the system clock can be selected as sound effect clock by mask

option. If Holtek’s sound library is invoked, only 128K and 64K is accepted.

**: Each bit of input ports PS, PP can be a trigger source of HALT interrupt. That can be specified

by mask option.

Absolute Maximum Ratings

Supply Voltage .........................VSS–0.3V to 13V

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

Operating Temperature................... 0°C to 70°C

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

5

14th May ’99

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