GMS81C5108

Features:

• 8K Bytes of On-chip Program Memory
• 192 Bytes of On-chip Data RAM
• 37 Nibbles of Display RAM
• Instruction Cycle Time:
        - 1us at 4MHz (2 cycle NOP instruction)
• 24 Programmable I/O pins
• 2V to 4V Operating Range
• Dual Clock Operation
        - main : 400kHz ~ 4.2MHz
        - sub. : 32.768kHz
• One 8-bit Basic Interval Timer/Counter
• Key Scan Interrupt
• 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)
• One 10-bit High Speed PWM Output
• 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)
• 6-bit Buzzer Driving port
        - 500Hz ~ 250kHz (@4MHz)
• 4-channel 8-bit On-chip A/D Converter
• Power Saving Mode
        - STOP, SLEEP, Sub Active mode
• LCD display/controller (LCDC)
        - 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)
• LCD Display Voltage Booster
• Supply Voltage Detector(SVD)
        - 2 level detector (2.2V, 1.7V)


Pinout




Specifications

Supply voltage ........................................... -0.3 to +7.0 V
Storage Temperature ................................-40 to +125
Voltage on any pin with respect to Ground (VSS)
............................................................... -0.3 to VDD+0.3
Maximum current sunk by (IOL per I/O Pin) ...........20 mA
Maximum output current sourced by (IOH per I/O Pin)
...............................................................................15 mA
Maximum current (IOL) .....................................100 mA
Maximum current (IOH)....................................... 60 mA


Description

The GMS81C5108 is an advanced CMOS 8-bit microcontroller with 8K bytes of ROM. The device is one of GMS800 family.

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.