GMS81C5108
GMS81C5108
CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
WITH LCD CONTROLLER/DRIVER AND
INFRARED REMOTE CONTROL TRANSMITTERS
1. OVERVIEW
1.1 Description
The GMS81C5108 is an advanced CMOS 8-bit microcontroller with 8K bytes of ROM. The device is one of GMS800 fam-
ily. The Hynix GMS81C5108 is a powerful microcontroller which provides a high flexibility and cost effective solution to
many LCD applications. The GMS81C5108 provides the following standard features: 8K bytes of ROM, 192 bytes of RAM,
37 Nibbles of Display RAM, 8/16-bit timer/counter, on-chip oscillator and clock circuitry. In addition, the GMS81C5108
supports power saving modes to reduce power consumption.
This document is only explained for the base of GMS81C5108, the eliminated functions are same as below.
Device name
GMS81C5108
GMS87C5108
ROM Size
OTP Size
-
RAM Size
192 bytes
192bytes
I/O
24
24
Package
80QFP
80QFP
8K bytes
8K bytes
1.2 Features
• 8K Bytes of On-chip Program Memory
• 192 Bytes of On-chip Data RAM
• 37 Nibbles of Display RAM
• Carrier Generator for Remote Controller
• 11 Interrupt sources
- 3 External interrupts (INT0 ~ 2)
- 8 Internal interrupts (BIT, Timer × 2, WT,
A/DC, SIO, REM, Keyscan)
• Instruction Cycle Time:
- 1us at 4MHz (2 cycle NOP instruction)
• 6-bit Buzzer Driving port
• 24 Programmable I/O pins
• 2V to 4V Operating Range
- 500Hz ~ 250kHz (@4MHz)
• 4-channel 8-bit On-chip A/D Converter
• Dual Clock Operation
- main : 400kHz ~ 4.2MHz
- sub. : 32.768kHz
• Power Saving Mode
- STOP, SLEEP, Sub Active mode
• LCD display/controller (LCDC)
• One 8-bit Basic Interval Timer/Counter
• Key Scan Interrupt
- Static Mode (37Seg × 1Com, 1/3 Bias)
- 1/2 Duty Mode (36Seg × 2Com, 1/3 Bias)
- 1/3 Duty Mode (35Seg × 3Com, 1/3 Bias)
- 1/4 Duty Mode (34Seg × 4Com, 1/3 Bias)
• Two 8-bit Timer/ Counter
(It can be used one 16-bit Timer/Counter)
• Watch Timer (2Hz, 4Hz, 16Hz, 1/64Hz)
• 8-bit Serial I/O (SIO)
• LCD Display Voltage Booster
• Supply Voltage Detector(SVD)
- 2 level detector (2.2V, 1.7V)
• One 10-bit High Speed PWM Output
JUNE 2001 Ver 1.0
1
HYNIX [ HYNIX SEMICONDUCTOR ]
