Philips Semiconductors
Product specification
CAN transceiver for 24 V systems
PCA82C251
SYMBOL
V
OH
V
OL
R
i
R
diff
V
ref
PARAMETER
HIGH-level output voltage
(pin 4)
LOW-level output voltage
(pin 4)
CANH, CANL input
resistance
differential input resistance
CONDITIONS
I
4
=
−100 µA
I
4
= 1 mA
I
4
= 10 mA
MIN.
0.8V
CC
0
0
5
20
−
−
−
−
−
−
−
−
−
40
55
80
80
90
90
TYP.
MAX.
V
CC
0.2V
CC
1.5
25
100
V
V
V
UNIT
kΩ
kΩ
Reference output
reference output voltage
V
8
= 1 V;
I
5
< 50
µA
V
8
= 4 V;
I
5
< 5
µA
R
8
= 0
Ω
R
8
= 0
Ω
R
8
= 0
Ω
R
8
= 0
Ω
R
8
= 0
Ω;
T
amb
< +85
°C;
V
CC
= 4.5 to 5.1 V
R
8
= 0
Ω;
V
CC
= 4.5 to 5.1 V
R
8
= 0
Ω;
T
amb
< +85
°C
R
8
= 0
Ω
R
8
= 47 kΩ
t
onRXD
SR
t
WAKE
t
dRXDL
V
stb
I
slope
V
slope
Notes
1. I
1
= I
4
= I
5
= 0 mA; 0 V < V
6
< V
CC
; 0 V < V
7
< V
CC
; V
8
= V
CC
; T
amb
< 90
°C.
2. This is valid for the receiver in all modes: high-speed, slope control and standby.
delay TXD to receiver
active
CANH, CANL slew rate
R
8
= 47 kΩ
R
8
= 47 kΩ
0.45V
CC
0.4V
CC
−
−
−
−
−
−
−
−
−
−
−
−
−
0.75V
CC
−10
0.4V
CC
0.55V
CC
0.6V
CC
V
V
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
V/µs
µs
µs
V
µA
V
Timing
(R
L
= 60
Ω;
C
L
= 100 pF; unless otherwise specified. See Figs 3 and 4)
t
bit
t
onTXD
t
offTXD
t
onRXD
t
offRXD
minimum bit time
delay TXD to bus active
delay TXD to bus inactive
delay TXD to receiver
active
delay TXD to receiver
inactive
1
50
80
120
150
170
170
190
400
550
−
20
3
−
−200
0.6V
CC
290
440
7
−
−
−
−
−
wake-up time from standby see Fig.6
(via pin 8)
bus dominant to RXD LOW V
8
= 4 V; see Fig.7
input voltage for standby
mode
slope control mode current
slope control mode voltage
Standby/slope control (pin 8)
2000 Jan 13
7
PHILIPS [ NXP SEMICONDUCTORS ]
