33903 datasheet(15/104 Pages) FREESCALE

15 / 104 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

33903/4/5

PIN CONNECTIONS

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

N/A

VBAUX

Output

VB Auxiliary

Output pin for external path PNP

transistor base

N/A

VCAUX

Output

VCOLLECTO

R Auxiliary

Output pin for external path PNP

transistor collector

N/A

VAUX

Output

VOUT

Auxiliary

Output pin for the auxiliary voltage.

N/A

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.

I/O-0

Input/

Output

Input/Output

Configurable pin as an input or output,

for connection to external circuitry

(switched or small load). The voltage

level can be read by the SPI and via the

MUX output pin. The input can be used

as a programmable Wake-Up input in LP

Mode. In LP, when used as an output,

the High Side (HS) or Low Side (LS) can

be activated for a cyclic sense function.

DBG

Input

Debug

Input to activate the Debug Mode. In

Debug Mode, no watchdog refresh is

necessary. Outside of Debug Mode,

connection of a resistor between DBG

and GND allows the selection of Safe

Mode functionality.

N/A

TXD-L2

Input

LIN Transmit

Data 2

LIN bus transmit data input. Includes an

internal pull-up resistor to VDD.

24,31

N/A

15, 18

GND

Ground

Ground of the IC.

N/A

RXD-L2

Output

LIN Receive

Data

LIN bus receive data output.

N/A

LIN2

Input/

Output

LIN bus

LIN bus input output connected to the

LIN bus.

N/A

33903D/5D LIN-1

33903S/5S LIN

Input/

Output

LIN bus

LIN bus input output connected to the

LIN bus.

N/A

33903D/5D TXD-

L11

33903S/5S TXD-L

Input

LIN Transmit

Data

LIN bus transmit data input. Includes an

internal pull-up resistor to VDD.

N/A

33903D/5D RXD-

L1 33903S/5S

RXD-L

Output

LIN Receive

Data

LIN bus receive data output.

Table 2. 33903/4/5 Pin Definitions (continued)

A functional description of each pin can be found in the Functional Pin Description section beginning on page 34.

54 Pin

33905D

32 Pin

33905S

32 Pin

33904

32 Pin

33903

32 Pin

33903D

32 Pin

33903S

Pin Name

Function

Formal

Name

Definition

33903 Datasheet(PDF) 15 Page - Freescale Semiconductor, Inc

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