Philips Semiconductors
Fault-tolerant CAN transceiver
Product specification
PCA82C252
SYMBOL
PARAMETER
CONDITIONS
MIN.
tPD(H)
propagation delay TXD-to-RXD
HIGH
C1 = 100 pF; C2 = 0;
−
Rl = 100 Ω; no failures and bus
failures 1, 2 and 5
C1 = C2 = 3.3 nF; Rl = 100 Ω; −
no failures and bus failures
1 and 2
C1 = 100 pF; C2 = 0;
−
R1 = 100 Ω;
bus failures 3, 4, 6 and 7
C1 = C2 = 3.3 nF; R1 = 100 Ω; −
bus failures 3, 4, 5, 6 and 7
two(min)
minimum dominant time for
wake-up on CANL or CANH
low power modes VBAT = 12 V 8
tWAKE(min) minimum WAKE LOW time for low power modes VBAT = 12 V 8
wake-up
tfail
failures 3 and 6 detection time normal mode
10
failure 3 recovery time
normal mode
10
failure 6 recovery time
normal mode
150
failures 4 and 7 detection time normal mode
0.75
failures 4 and 7 recovery time normal mode
10
th(min)
failures 3, 4 and 7 detection time low power modes; VBAT = 12 V 0.8
failures 3, 4 and 7 recovery time low power modes; VBAT = 12 V −
minimum hold time to go to
5
sleep command
∆ec
edge-count difference between normal mode
−
CANH and CANL for failures 1,
2 and 5 detection (NERR
becomes LOW)
edge-count difference between normal mode
−
CANH and CANL for failures 1,
2 and 5 recovery
TYP. MAX.
0.75 1.25
UNIT
µs
1
1.5
µs
0.85 1.3
µs
1.4 2.1
µs
−
38
µs
−
38
µs
−
60
µs
−
60
µs
−
750
µs
−
4.0
ms
−
60
µs
−
8.0
ms
4
−
ms
−
50
µs
3
−
1
−
1997 Oct 28
11