GMS81C3004

Features:

• 4K Bytes On-chip Program Memory
• 256 Bytes of On-chip Data RAM (Included 64 bytes stack memory)
• Dot Matrix LCD Driver
      - Max. 320 dots (40 seg. x 8 com.)
      - 40 bytes of Display RAM
• Instruction Cycle Time:
      - 0.5us, 1.9us, 3.8us, 15.2us at 4.19MHz
      - 61us, 244us, 488us, 1.95ms at 32.768KHz
• 51 Programmable I/O pins (Included 32 LCD pins)
• 2.2V to 5.5V Wide Operating Range
• Dual Clock Operation (4.19MHz, 32kHz)
• One 8-bit Basic Interval Timer
• Key Scan
• One 8-bit Timer/ Counter
• Watch Timer
• Watchdog timer
• Eight Interrupt sources
      - External input: 3
      - Keyscan input: 1
      - Timer: 4
• Buzzer Driving port
      - 500Hz ~ 130kHz
• 4-channel 5-bit On-chip Comparator
• Power Down Mode
      - STOP mode
      - SLEEP mode


Pinout




Specifications

Supply voltage .............................................. -0.3 to +6.0 V
Storage Temperature ....................................-40 to +125
Voltage on any pin with respect to Ground (VSS)
............................................................... ....-0.3 to VDD+0.3
Maximum current out of VSS pin ..............................100 mA
Maximum current into VDD pin ...................................80 mA
Maximum current sunk by (IOL per I/O Pin) ...............20 mA
Maximum output current sourced by (IOH per I/O Pin)
.....................................................................................8 mA
Maximum current (IOL) .......................................... 80 mA
Maximum current (IOH)........................................... 50 mA


Description

The GMS81C3004 is an advanced CMOS 8-bit microcontroller with 4K bytes of ROM. The device is one of GMS800 family.

The LG Semicon GMS81C3004 is a powerful microcontroller which provides a highly flexible and cost effective solution to many LCD applications such as controller with LCD and toys. The GMS81C3004 provides the following standard features: 4K bytes of ROM, 256 bytes of RAM, 8-bit timer/counter, on-chip oscillator and clock circuitry. In addition, the GMS81C3004 supports power saving modes to reduce power consumption.