Philips Semiconductors
Preliminary specification
High speed CAN transceiver
TJA1050
BLOCK DIAGRAM
V
handbook, full pagewidth
CC
3
8
S
60 µA
V
CC
GND
TEMPERATURE
PROTECTION
200
µA
TXD
1
DOMINANT
TIME-OUT
TIMER
DRIVER
TXD
RXD
7
V
CC
CANH
25
kΩ
4
5
0.5V
CC
25
RECEIVER
kΩ
GND
GND
CANL
6
REFERENCE
VOLTAGE
TJA1050
V
ref
2
GND
MGS374
Fig.1 Block diagram.
PINNING
SYMBOL
PIN
DESCRIPTION
TXD
1
transmit data input; reads in data
from the CAN controller to the bus
line drivers
handbook, halfpage
TXD
1
2
3
4
8
7
6
5
S
GND
VCC
2
3
4
ground
GND
CANH
CANL
supply voltage
TJA1050T
V
RXD
receive data output; reads out
data from the bus lines to the
CAN controller
CC
V
RXD
ref
MGS375
Vref
5
6
7
8
reference voltage output
LOW-level CAN bus line
HIGH-level CAN bus line
CANL
CANH
S
select input for
Fig.2 Pin configuration.
high speed mode/silent mode
1999 Sep 27
3
NXP [ NXP ]
