MC33689D 데이터 시트보기 (PDF) - Freescale Semiconductor

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MC33689D

System Basis Chip with LIN Transceiver

Freescale Semiconductor 

PIN CONNECTIONS

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

Pin Name

Formal Name Pin Function

Definition

22

RST

Reset Output

Output 5.0 V regulator and watchdog reset output pin.

(Active LOW)

23

IN

PWM Input Control

Input

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

26

SCLK

Serial Data Clock

Input

Clock input for the SPI of the 33689.

27

MOSI

Master Out Slave In

Input

SPI data received by the 33689.

28

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.

29

CS

Chip Select

Input

SPI control chip select input pin.

(Active LOW)

30

INT

Interrupt Output

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

(Active LOW)

condition occurs.

31

RXD

Receiver Output

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

voltage.

32

TXD

Transmitter Input

Input

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

output.

33689

4

Analog Integrated Circuit Device Data

Freescale Semiconductor

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