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Products > ASSP > Functional Block IC > Product Lineup > IEBus™ Protocol Control LSI >

µPD6708

IEBus™ Protocol Control IC


IEBus™ (Inter Equipment Bus™) Protocol Control IC


Overview

  The µPD6708 is a peripheral IC for microcontrollers that controls the protocol of the IEBus.
  This IC processes the protocol of the IEBus. Because it is provided with a transmit/receive buffer, the microcontroller can concentrate on the application processing of the IEBus. Because the µPD6708 also contains an IEBus driver/receiver, it can be directly connected to the bus.


Features

  • Protocol control of IEBus
    • Multi-master system
    • Broadcast communication function (commu-nication between one unit and multiple units)
    • Choice of three modes with different trans-mission speeds

fX 12 MHz 12.58 MHz
Mode0 Approx. 3.9 Kbps Approx. 4.1 Kbps
Mode1 Approx. 17 Kbps Approx. 18 Kbps
Mode2 Approx. 26 Kbps Approx. 27 Kbps


  • On-chip IEBus driver/receiver
  • Transmit/receive buffer
      Transmit: 4-byte FIFO
      Receive: 20-byte FIFO
  • Interface with microcontroller
    • Three-line serial I/O (SCK#, SO, SI pins)
    • Transfer with MSB first
  • Oscillation frequency (fX): 12 MHz, 12.58 MHz
    • In modes 0 and 1: ±1.5%
    • In mode 2: ±0.5%
  • Supply voltage: VDD = 5 V ±10%

Ordering Information

Order Code Package
µPD6708GS 16-pin plastic SOP (7.62 mm (300))


Document


Block Diagram

µPD6708 Block Diagram

IEBus is a trademark of NEC Electronics Corporation.
The names of other companies and products are trademarks or registered trademarks of each company.