33905 datasheet(9/91 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33904/5

PIN CONNECTIONS

LIN-T2

I/O-3

Output

Input/Output

LIN Termination

Input/Output 3

33905D, Output pin for the LIN2 master node termination

resistor.

33904A/33905S, Configurable pin as an input or high side

output, for connection to external circuitry (switched or small

load). The input can be used as a programmable wake-up

input in Low Power mode. When used as a high side, no over-

temperature protection is implemented. A basic short to GND

protection function, based on switch drain-source over-

voltage detection, is available.

LIN-T1

LIN-T

I/O-2

Output

Input/Output

LIN Termination

Input/Output 2

I/O-2

33905D, Output pin for the LIN1 master node termination

resistor.

33905S, 33905D, Configurable pin as an input or high side

output, for connection to external circuitry (switched or small

load). The input can be used as a programmable wake-up

input in Low Power mode. When used as a high side, no over-

temperature protection is implemented. A basic short to GND

protection function, based on switch drain-source over-

voltage detection, is available.

33904, Configurable terminal as input or high side output, for

connection to external circuitry (switched or small load). Input

can be used as a programmable wake-up input from Low

Power Mode. When used as high side, no over-temperature

protection is implemented. A basic short to GND protection

function based on switch drain-source over-voltage detection

is available.

SAFE

Output

Safe Output

(Active LOW)

Output of the safe circuitry. The pin is asserted LOW in case

of a safe condition is detected (e.g.: software watchdog is not

triggered, VDD low, issue on reset pin etc.). Open drain

structure.

5 V-CAN

Output

5V-CAN

Output voltage for the embedded CAN interface. A capacitor

must be connected to this pin.

CANH

Output

CAN High

CAN high output.

CANL

Output

CAN Low

CAN low output.

GND-CAN

Ground

GND-CAN

Power GND of the embedded CAN interface

SPLIT

Output

SPLIT Output

Output pin for connection to the middle point of the split CAN

termination

VBAUX

Output

VB Auxiliary

Output pin for external path PNP transistor base

VCAUX

Output

VCOLLECTOR

Auxiliary

Output pin for external path PNP transistor collector

VAUX

Output

VOUT Auxiliary

Output pin for the auxiliary voltage.

MUX-OUT

Output

Multiplex Output

Multiplexed output to be connected to an MCU A/D input.

Selection of the analog parameter available at MUX-OUT is

done via the SPI. A switchable internal pull-down resistor is

integrated for VDD current sense measurements.

Table 2. 33904/5 Pin Definitions (continued)

A functional description of each pin can be found in the Functional Pin Description section beginning on page 28.

Pin #

33905D

Pin #

33905S

Pin #

33904A

Pin Name

Pin Function

Formal Name

Definition

33905 Datasheet(PDF) 9 Page - Freescale Semiconductor, Inc

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