1997 Oct 28

4

Philips Semiconductors

Product specification

Fault-tolerant CAN transceiver

PCA82C252

PINNING

SYMBOL

PIN

DESCRIPTION

INH

1

inhibit output for switching external 5 V regulator

TXD

2

transmit data input, when LOW bus data will be dominant, when HIGH bus data will be recessive

RXD

3

receive data output, when LOW bus data will be dominant

NERR

4

error output pin, when LOW a bus error exists

STB

5

not standby digital control input signal (active LOW)

EN

6

enable digital control input signal

WAKE

7

not wake input signal, when pulled down INH becomes active for wake-up (active LOW)

RTH

8

termination resistor, CANH line will be high-impedance with certain bus errors

RTL

9

termination resistor, CANL line will be high-impedance with certain bus errors

10

supply voltage (+5 V)

CANH

11

high voltage bus line, will be HIGH in dominant state

CANL

12

low voltage bus line, will be LOW in dominant state

GND

13

ground

BAT

14

battery voltage

Fig.2 Pin configuration.

handbook, halfpage

PCA82C252

MBG621

1

INH

2

3

4

5

6

7

14 BAT

TXD

GND

RXD

CANL

NERR

CANH

STB

VCC

EN

RTL

WAKE

RTH

13

12

11

10

9

8