Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
PINNING
SYMBOL
INH
TXD
RXD
ERR
STB
EN
WAKE
RTH
RTL
V
CC
CANH
CANL
GND
BAT
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DESCRIPTION
TJA1054
inhibit output for switching an external voltage regulator if a wake-up signal occurs
transmit data input for activating the driver to the bus lines
receive data output for reading out the data from the bus lines
error, wake-up and power-on indication output; active LOW in normal operating mode when the
bus has a failure and in low power modes (wake-up signal or in power-on standby)
standby digital control signal input (active LOW); defines together with input signal on pin EN the
state of the transceiver (in normal and low power modes); see Table 2 and Fig.3
enable digital control signal input; defines together with input signal on pin STB the state of the
transceiver (in normal and low power modes); see Table 2 and Fig.3
local wake-up signal input; falling and rising edges are both detected
termination resistor connection; in case of a CANH bus wire error the line is terminated with a
selectable impedance
termination resistor connection; in case of a CANL bus wire the line is terminated with a
selectable impedance
supply voltage
HIGH-level voltage bus line
LOW-level voltage bus line
ground
battery supply
handbook, halfpage
INH
TXD
RXD
ERR
STB
EN
WAKE
1
2
3
4
5
6
7
MGL422
14 BAT
13 GND
12 CANL
TJA1054T
11 CANH
10 VCC
9
8
RTL
RTH
Fig.2 Pin configuration.
1999 Feb 11
5
PHILIPS [ NXP SEMICONDUCTORS ]
