MC33187 Datasheet (Motorola) - Long Duration Automotive Timer

MC33187, Long Duration Automotive Timer

Pin 1 : RC Pin 4 : TOGGLE Oscillator frequency control.

Rt and Ct control the On/Off Control.

A positive going voltage transition on this frequency of the clock oscillator.

The period of oscillation is input toggles the timer between the On and Off state.

If the nominally given by t = RtCt with the

MOTOROLA Freescale Semiconductor, Inc.

Semiconductor Technical Data Order Number: MC33187/D Rev.

4, 06/2001 Advance Information MC33187 LONG DURATION AUTOMOTIVE TIMER SEMICONDUCTOR TECHNICAL DATA Long Duration Automotive Timer This circuit is a Long Duration Automotive Timer primarily designed as a deffoger timer, but as it is realised using a digital divider techniques and it is suitable for a variety of long duration timing functions.

The circuit is available in an 8 pin surface plastic pa