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GMS81508BK

CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER WITH A/D CONVERTER

Hyundai Micro Electronics 

HYUNDAI MicroElectronics

GMS81508B/16B/24B

GMS81508B/16B/24B

CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

WITH A/D CONVERTER

1. OVERVIEW

1.1 Description

The GMS81508B/16B/24B are advanced CMOS 8-bit microcontrollers with 8K/16K/24K bytes of ROM. The device is one

of GMS800 family. This device using the GMS800 family CPU includes several peripheral functions such as Timer, A/D

converter, Programmable buzzer driver, Serial I/O communication, Pulse Width Modulation function, etc. The RAM, ROM,

and I/O are placed on the same memory map in addition to simple instruction set.

The GMS815xxB is functionally 100% compatible with earier GMS81508/16 or GMS81508A/16A, however better charac-

teristics have such as strong EMS, wide operating voltage, temperature, frequency and fast programming time for the OTP.

Device name

GMS81508B

GMS81516B

GMS81524B

ROM Size

8K bytes

16K bytes

24K bytes

RAM Size

448 bytes

448 bytes

448 bytes

OTP

GMS81516BT

GMS81516BT

GMS81524BT

Package

64SDIP, 64MQFP,

64LQFP

1.2 Features

• 8K/16K/24K Bytes On-chip Program Memory

• 448 Bytes of On-chip Data RAM

(Included stack memory)

• Minimum Instruction Execution Time

0.5µs at 8MHz

• One 8-bit Basic Interval Timer

• Four 8-bit Timer/Event counter

or Two 16-bit Timer/Event counter

• One 6-bit Watchdog timer

• Eight channel 8-bit A/D converter

• Two channel 8-bit PWM

• One 8-bit Serial Communication Interface

• Four External Interrupt input ports

• Buzzer Driving port

- 500Hz ~ 250kHz@8MHz

• 52 I/O Ports, 4 Input Ports

• Twelve Interrupt sources

- Basic Interval Timer: 1

- External input: 4

- Timer/Event counter: 4

- ADC: 1

- Serial Interface: 1

- WDT: 1

• Built in Noise Immunity Circuit

- Noise filter

- Power fail processor

• Power Down Mode

- STOP mode

• 2.2V to 5.5V Wide Operating Range

• 1~10MHz Wide Operating Frequency

• 64SDIP, 64MQFP, 64LQFP package types

• Available 16K, 24K bytes OTP version

DEC. 1999 Ver 1.04

1

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