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HA12187

Bus Interface Driver/Receiver IC

Hitachi -> Renesas Electronics 

HA12187FP

Bus Interface Driver/Receiver IC

ADE-207-174A (Z)

2nd Edition

Jun. 1999

Description

The HA12187FP was developed to be used as a bus interface driver/receiver IC in automotive audio

equipment controllers. It implements a two-wire serial bus.

Functions

• Two-input OR circuit

• Input comparator circuit

• Current output driver circuit

• Receiver input comparator circuit

• Receiver output circuit

• Standby circuit

Features

• Supports two data inputs (Pins 1 and 3 are the input pins)

• Comparators with hysteresis characteristics were adopted for the inputs

• Current drive output drivers adopted (Output current: 3.8 mA typical)

• Comparators with hysteresis characteristics were adopted for the receivers

• Wide receiver common-mode input operating range (Common-mode input operating range: 0 to 5 V

typical)

• The driver output and the receiver input can withstand high voltages (Maximum rating: 18 V)

• Standby function (The IC enters standby mode when pin 8 goes low)

• Operating power-supply voltage range: 5 V ±0.5 V

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