GMS81C7208

Features:

• 8K/16K Bytes On-chip Programmable ROM
• 448 Bytes of On-chip Data RAM (Included Stack Area and 27 Nibbles LCD Display RAM)
• Minimum Instruction Execution Time 1µs at 4MHz (2cycle NOP Instruction)
• One 8-bit Basic Interval Timer
• One Watch Timer
• One Watchdog Timer
• Four 8-bit Timer/Event Counter (or Two 16-bit Timer/Event Counter)
• Three External Interrupt Input Ports
• One Programmable 6-bit Buzzer Driving Port
      - 500Hz ~ 250kHz@4MHz
• 29 I/O Ports
• Three Channel 8-bit A/D Converter
• One 8-bit Serial Communication Interface
• LCD Display/ Controller
      - Static Mode (20SEG x 1COM, Static)
      - 1/2 Duty Mode (19SEG x 2COM, 1/2 or 1/3 Bias)
      - 1/3 Duty Mode (18SEG x 3COM, 1/3 Bias)
      - 1/4 Duty Mode (17SEG x 4COM, 1/3 Bias)
      - Internal Built-in Resistor Circuit for Bias
• Twelve Interrupt Sources
      - Basic Interval Timer: 1
      - External Input: 3
      - Timer/Event Counter: 4
      - ADC: 1
      - Serial Interface: 1
      - WT:1
      - WDT: 1
• Main Clock Oscillation (1.0~4.5MHz)
      - Crystal
      - Ceramic Resonator
      - External R Oscillator (Built-in Capacitor)
• Power Saving Operation Mode
      - 2/8/16/64 Divided System Clock Selectable
• Power Down Mode
      - STOP Mode
      - SLEEP Mode
• Wide Temperature Range
      - Industrial : -40 ~ + 85
• 2.7V to 5.5V Wide Operating Voltage Range
• Noise Immunity Circuit for EMS
      - Power Fail Processor
      - Built-in Noise Filter
• 44MQFP, 44LQFP Package Types
• Available 16K Bytes OTP Version


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)
...............................................................................15 mA
Maximum current (IOL) ..................................... 100 mA
Maximum current (IOH)........................................60 mA


Description

The GMS81C7208/7216 is advanced CMOS 8-bit microcontrollers with 8K/16K bytes of ROM. There are a powerful microcontroller which provides a highly flexible and cost effective solution to many LCD applications. GMS81C7208/7216 provide the following standard features:8K/16K bytes of mask type ROM or 16K bytes OTP ROM, 448 bytes of RAM, 8-bit Timer/Counter, 8-bit A/D converter, programmable buzzer driving port, 8-bit basic interval timer, watch dog timer, serial peripheral interface, on chip oscillator and clock circuitry. GMS81C7208/7216 also come with 4com/17seg LCD driver. In addition, it support power saving mode to reduce power consumption.