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Specification

Overview

  • General Description

    The EM78F734N is an 8-bit microprocessor designed and developed with low-power, high-speed CMOS technology and high noise immunity. It has an on-chip 4K × 13-bit Electrical Flash Memory and 128 bytes In-system programmable EEPROM. It provides three protection bits to prevent intrusion of user’s Flash memory code. With its enhanced Flash-ROM feature, the EM78F734N provides a convenient way of developing and verifying user’s programs. Moreover, this Flash-ROM device offers the advantages of easy and effective program updates, using development and programming tools. Users can avail of the ELAN Writer to easily program their development codes.

  • Features & Benefits

    • CPU Configuration

      • 4K x 13 bits Flash memory
      • 144 x 8 bits on-chip registers (SRAM)
      • 128 bytes In-system programmable EEPROM
      • 8-level stacks for subroutine nesting

    • I/O Port Configuration

      • Three bidirectional I/O ports
      • Wake-up port : P6
      • 12 Programmable pull-down I/O pins
      • 8 programmable pull-high I/O pins
      • 4 programmable open-drain I/O pins
      • External interrupt : P60

    • Operating Voltage Range

      • 2.2V~5.5V at -40°C~85°C (Industrial Grade)
      • 2.2V~5.5V at 0°C~70°C (Commercial Grade)

    • Operating Frequency Range

      • High Internal RC oscillator (HIRC): 455KHz, 1MHz, 4MHz & 8MHz
      • Low Internal RC oscillator (LIRC): 128KHz & 16KHz, which is provided by dividing the 128kHz

    • One 16-bit Timer/Counter

      • TC1: Timer/Counter/Capture

    • One 8-bit Timer/Counter

      • TC3 : Timer/Counter/PDO (Programmable Divider Output) / PWM (Pulse Width Modulation)

    • 6 available interrupts

      • Internal interrupt: 4
      • External interrupt: 2

    • Eight channels Analog-to-Digital Converter with 12-bit resolution

    • Peripheral Configuration

      • 8-bit real time clock only (TCC) with selective signal sources, trigger edges, and overflow interrupt
      • Power down (Sleep) mode
      • Four programmable Level Voltage Reset (LVR): 3.3V, 3.0V, 2.6V, and 2.0V (POR)
      • Three security registers to prevent intrusion of Flash memory codes
      • One configuration register to accommodate user's requirements
      • Two clocks per instruction cycle
      • High EFT immunity
      • Two sub-frequencies; 128kHz and 16kHz, the 16kHz is provided by dividing the 128kHz

    • Single Instruction Cycle Commands

    • Five Crystal Range in Oscillator Mode

      • HXT2: 20MHz~12MHz
      • HXT1: 12MHz~6MHz
      • XT: 6MHz~1MHz
      • LXT1: 1MHz~100kHz

    • Programmable Free Running Watchdog Timer

  • Data Sheet

  • Package

  • Technical Information

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