33689D datasheet(4/31 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33689

PIN CONNECTIONS

RST

Reset Output

(Active LOW)

Output

5.0 V regulator and watchdog reset output pin.

PWM Input Control

Input

External input PWM control pin for high-side switches HS1 and HS2.

SCLK

Serial Data Clock

Input

Clock input for the SPI of the 33689.

MOSI

Master Out Slave In

Input

SPI data received by the 33689.

MISO

Master In Slave Out

Output

SPI data sent to the MCU by the 33689. When CS is HIGH, pin is in the

high-impedance state.

Chip Select

(Active LOW)

Input

SPI control chip select input pin.

INT

Interrupt Output

(Active LOW)

Output

This output pin reports faults to the MCU when an enabled interrupt

condition occurs.

RXD

Receiver Output

Output

Receiver output of the LIN interface and reports the state of the bus

voltage.

TXD

Transmitter Input

Input

Transmitter input of the LIN interface and controls the state of the bus

output.

Table 1. 33689 32-SOICW Pin Definitions (continued)

A functional description of each pin can be found in the Functional Pin Description section beginning on page 19.

Pin Name

Formal Name

Pin Function

Definition

33689D Datasheet(PDF) 4 Page - Freescale Semiconductor, Inc

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