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Specification

Overview

  • General Description

    The EM88F794N is an 8-bit low-cost high performance MCU equipped with DC fan motor driver. The EM88F794N is a microprocessor designed and developed with low-power, high-speed CMOS technology. It has an on-chip 4K x 16-bits electrical flash memory. The timer that can perform various PWM operations operates at a maximum resolution of 32 MHz and is provided with several functions, such as PWM (complementary PWM ’ 3 channels) output function with dead time, 6-phase PWM output function, DC inverter real-time output function, and can perform inverter control. The MCU is designed as a cost effective processors offering optimized performance and are ideal for DC motor driving applications. The EM88F794N constructive features motivate exploration into wide variety of new creative ideas for more innovative products that drive DC motors. The debug function is built in EM88F794N chip. User can read the program code from OCDS port and monitor the on chip register status, memory and program trace log on computer. Using OCDS, user can develop their program for several flash types of ELAN IC

  • Features & Benefits

    • CPU Configuration

      • 4K x 16-bit Flash memory
      • (48+256) bytes general purpose register
      • More than 10 years data retention
      • 8-level stacks for subroutine nesting
      • 8 x 8 Multiplier
      • Less than 6 mA at 5V/32MHz
      • Typically 1 μA, during sleep mode
      • Power-On Reset 2.1V
      • Three Programmable Brown-out Reset: BOR: 4.6V, 3.9V, 2.8V
      • Three Programmable Level Voltage Detectors: LVD: 4.7V, 4.1V, 3.0V
      • Four CPU operation modes (Normal, Green, Idle, Sleep)

    • I/O Port Configuration

      • 3 bidirectional I/O ports: P5~P7
      • 3 programmable pin change wake-up ports: P5~P7
      • 3 programmable pull-down I/O ports: P5~P7
      • 3 programmable pull-high I/O ports: P5~P7
      • 3 programmable open-drain I/O ports: P5~P7
      • 3 programmable high-sink/drive I/O ports: P5~P7

    • Operating Voltage Range

      • 3.0V~5.5V at -40°C~+125°C (Industrial Grade)

    • Operating Frequency Range

      • High Internal RC oscillator (HIRC): 20MHz, 24MHz, 28MHz & 32MHz
      • Low Internal RC oscillator (LIRC): 16KHz & 128KHz

    • Peripheral Configuration

      • Four 16-bit timers (TM1/TM2/TM3/TM4) with seven modes: Timer/Counter/Capture/Window/Buzzer/PWM/PDO (Programmable Divider Output) modes
      • 6+1 channels Analog-to-Digital Converter with 12-bit resolution: One of the channels is 1/2 VDD power detection, ADC Buffer mode, Power down (Sleep) mode
      • Two Comparator: Comparator 2 has hysteresis function
      • One 16-bit PWM: Three group Pulse Width Modulation(PWM) complementary output with dead time
      • One 16-bit PWM/Capture
      • High EFT/ESD immunity

    • 31 Available Interrupts: (11 External, 20 Internal)

      • External interrupt: EINT0, EINT1
      • TM1, TM2, TM3,TM4 overflow interrupt
      • TM5, TM6 period/duty match completion
      • Input-port status changed interrupt
      • ADC completion interrupt
      • LVD interrupt
      • Comparators 1~2 interrupt
      • System hold interrupt
      • PWM brake interrupt
      • Hall edge interrupt

    • Single Instruction Cycle Commands

    • Programmable Free Running Watchdog Timer

      • Watchdog Timer: 16.5ms±5% with VDD=5V at 25°C, Temperature range ±7.5% (-40°C~+125°C)
      • Two clocks per instruction cycle

  • Data Sheet

  • Package

  • Technical Information

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