tja1081 NXP Semiconductors, tja1081 Datasheet - Page 14

• Manufacturer Part Number: tja1081
• Description: Flexray Node Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TJA1081_1
Preliminary data sheet
Fig 7.
+1500
Each interruption is 130 ns.
The transition time from Data_0 to Data_1 and from Data_1 to Data_0 is about 20 ns.
The TJA1081 wake-up flag will be set with the following pattern:
FFh, FFh, FFh, FFh, FFh, 00h, 00h, 00h, 00h, 00h,
FFh, FFh, FFh, FFh, FFh, 00h, 00h, 00h, 00h, 00h,
FFh, FFh, FFh, FFh, FFh, 00h, 00h, 00h, 00h, 00h,
FFh, FFh, FFh, FFh, FFh, FFh
Minimum bus pattern for bus wake-up
1500
0 V
V dif
6.3.2 Local wake-up via pin WAKE
770
ns
870
ns
130 ns
If the voltage on pin WAKE is lower than V
edge on pin WAKE) a local wake-up event on pin WAKE is detected. At the same time, the
biasing of this pin is switched to pull-down.
If the voltage on pin WAKE is higher than V
biasing of this pin is switched to pull-up, and no local wake-up will be detected.
Fig 8.
870
5 s
ns
Sleep mode: V
Local wake-up timing via pin WAKE
130
870 ns 870 ns
ns
RXD and
130
ns
WAKE
RXEN
INH
IO
Rev. 01 — 15 April 2009
and (V
5 s
V
V
BAT
BAT
0 V
0 V
BAT
or V
CC
) still provided.
t
wake(WAKE)
pull-up
th(det)(WAKE)
th(det)(WAKE)
5 s
for longer than t
pull-down
for longer than t
t
wake(WAKE)
FlexRay node transceiver
015aaa069
5 s
pull-up
wake(WAKE)
wake(WAKE)
© NXP B.V. 2009. All rights reserved.
TJA1081
015aaa043
wake-up
(falling
, the
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