UPD6708 datasheet(3/74 Pages) RENESAS

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MOS INTEGRATED CIRCUIT

µPD6708

IEBus

™ (Inter Equipment Bus™) PROTOCOL CONTROL LSI

Document No. U10680EJ2V0DS00 (2nd edition)

(Previous No. IC-3282)

Date Published January 1996 P

Printed in Japan

DATA SHEET

The information in this document is subject to change without notice.

The mark 5 shows major revised points.

DESCRIPTION

The

µPD6708 is a peripheral LSI for microcontrollers that controls the protocol of the IEBus.

This LSI 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

At 12 MHz

At 12.58 MHz

Mode 0

Approx. 3.9 Kbps

Approx. 4.1 Kbps

Mode 1

Approx. 17 Kbps

Approx. 18 Kbps

Mode 2

Approx. 26 Kbps

Approx. 27 Kbps

ORDERING INFORMATION

Part Number

Package

µPD6708CX

16-pin plastic DIP (300 mil)

µPD6708GS

16-pin plastic SOP (300 mil)

• 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 %

APPLICATION FIELD

Fields where a small-scale digital data transfer system is required between equipment, such as automobile electronic

systems and industrial equipment

1993

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