Description
The GMS81C50 Series is an advanced CMOS 8-bit microcontroller with 16K/24K/32K bytes of ROM. The device is one of GMS800 family. The LG Semicon GMS81C50 Series is a powerful microcontroller which provides a highly flexible and cost effective solution to many UR & Keyboard applications. The GMS81C50 Series provides the following standard features: 16K/24K/32K bytes of ROM, 448 bytes of RAM, 8-bit timer/counter, on-chip oscillator and clock circuitry. In addition, the GMS81C50 Series supports power saving modes to reduce power consumption.
FEATUREs
• Instruction Cycle Time:
- 1us at 4MHz
• Programmable I/O pins
• Operating Voltage
- 2.2 ~ 4.0 V @ 4MHz
• Timer
- Timer / Counter ......... 16 Bit * 1 ch
......... 8 Bit * 2 ch
- Basic Interval Timer ...... 8 Bit * 1 ch
- Watch Dog Timer ............ 6Bit * 1ch
• 8 Interrupt sources
* Nested Interrupt control is available.
- External input: 2
- Keyscan input
- Basic Interval Timer
- Watchdog timer
- Timer : 3
• Power On Reset
• Power saving Operation Modes
- STOP
- SLEEP
• Low Voltage Detection Circuit
• Watch Dog Timer Auto Start (During 1second after Power on Reset)