GPL10B datasheet(3/23 Pages) GENERALPLUS

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GPL10B

Proprietary & Confidential

May 29, 2014

Version: 1.5

7KB LCD CONTROLLER/DRIVER

1. GENERAL DESCRIPTION

The GPL10B is a CMOS 8-bit single chip micro-controller which

contains LCD drivers, ROM, SRAM, I/O, timer/counter and tone

output for directly driving buzzer on a single chip.

The GPL10B is

designed to drive LCD directly and performs efficient controller

function as well as arithmetic function.

With the on chip crystal

oscillator, the real time clock can be easily implemented.

For

power saving, a software controllable standby switch is also built-in.

The GPL10B is widely used in electronic products requiring very

low power consumption, e.g. multi-function watch, calendar,

calculator, and thermometer or LCD game with audio output.

2. BLOCK DIAGRAM

8-BIT

RISC

PROCESSOR

ROSC GEN

TIME BASE

INTERRUPT

LOGIC

7K X 8

ROM

96 X 8

SRAM

ONE

12-BIT

AUTO

RELOAD

TIMER

I/O

TONE

32 SEGMENTS X 4 COMMANDS LCD DRIVER

IOEF5 - 0

(I)

IOCD3 - 0

(I/O)

SEG31 - 0

COM3 - 0

ROSC

X32I X32O

3. FEATURES

Built-in 8-bit CPU

Operating voltage: 2.0V to 5.5V

Max. CPU clock: 2.0MHz @ 2.0V

ROM capacity: 7K x 8 bits

RAM capacity: 96 x 8 bits

Direct Driver for LCD: 4 Commons x 32 Segments

(1/2, 1/3 bias, 1/2, 1/3, 1/4 duty)

Input Port: Six input pins with key wakeup function with four

different configurations (mask option)

I/O Port: Four special purpose I/O for implement thermometer

Timer/Counter: one 12-bit timer/counter

Six Interrupt sources:

. External Interrupt

. Timer Interrupt

. 2KHz Interrupt

. LCD Service Interrupt (in LCD share mode)

. 128Hz Interrupt

. 2Hz Interrupt

Dual Clock System: One built-in RC oscillator that selects

internal or external resistor (mask option) for CPU.

The other

built-in crystal oscillator or RC oscillator (mask option) for LCD

scanning.

Tone Output: Tone output for directly driving buzzer

System Reset: External Reset, Watchdog Reset and Low

Voltage Reset (2.0V) are built-in

Low Operating Current:

Typical current < 8uA @ 3.0V for timepiece products

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