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MC33388 Datasheet

  • MC33388

  • Fault Tolerant CAN Interface

  • Motorola   Motorola

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Rev: 2.2 Date: 02 Nov 2000
Advance Information
MC33388
Fault Tolerant CAN Interface
The MC33388 is a CAN physical interface device, dedicated to
automotive body electronic multiplexing applications. It operates in
differential mode, allowing ground shifts up to 1,5V, reducing RFI
disturbances. It offers very low standby current in sleep and standby
mode operation and supports communication speeds up to 125kBauds.
It is fully protected against harsh automotive environments and the
driver is able to detect fault conditions and automatically switches into
appropriate default mode. Under fault condition, it continuously monitors
bus failures in order to switch back to normal bus operation as soon as
faults disappeared.
鈥?Very low sleep/standby current (15碌A(chǔ) typical)
鈥?Baud rate from 10 kBaud up to 125kBauds
鈥?Automatic switching to single wire mode in case of bus failures and
return to differential mode if bus failures disappear
鈥?Supports one wire transmission modes with ground offset up to 1.5V
鈥?Internal bus driver slope control function to minimize RFI
鈥?Bus line short-circuit protected to battery, VDD and ground
鈥?Bus line protected against automotive transients
鈥?Thermal protection of bus line drivers
鈥?Supports unshielded twisted pair bus
鈥?An unpowered node does not disturb the bus lines
鈥?Wake-up capability triggered from bus message and wake-up input pin
鈥?Wake up pin with dual edges sensitivity
鈥?Battery fail flag reported on NERR output
鈥?Ambient temperature range from -40擄C to 125擄C.
AUTOMOTIVE FAULT TOLERANT
CAN PHYSICAL LAYER
SEMICONDUCTOR
TECHNICAL DATA
D SUFFIX
PLASTIC PACKAGE
CASE 751A-03
SO-14
PIN CONNECTIONS
Simplified Block Diagram
VDD
INH
BAT
1
2
3
4
5
6
7
14
13
12
11
10
9
8
BAT
GND
CANL
CANH
VDD
RTL
RTH
TX
RX
WAKE
EN
STB
WAKE-UP LOGIC
MODE CONTROL
NERR
STB
EN
WAKE
INH
VDD
PROTECTION
12.5k
S2
S5
S3
RTL
CANH
CANL
(Top View)
TX
SLOPE
CONTROL
&
DRIVER
S4
S1
RTH
NERR
FAILURE DETECTION
RECEIVER
RX
MUX
Device
ORDERING INFORMATION
Operating
Temperature Range
Package
GND
MC33388D
T
A
= -40 to 125擄C
SO-14

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