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MC33742SDW/R2 View Datasheet(PDF) - Freescale Semiconductor

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MC33742SDW/R2 Datasheet PDF : 70 Pages
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Freescale Semiconductor
Advance Information
Document Number: MC33742
Rev. 11, 6/2008
System Basis Chip with
Enhanced High Speed CAN
Transceiver
33742
33742S
The 33742 and the 33742S are SPI-controlled System Basis Chips
(SBCs) combining many frequently used functions along with a CAN 2.0-
compliant transceiver, used in many automotive electronic control units
(ECUs). The 33742 SBC has a fully protected fixed 5.0V low dropout
internal regulator with current limiting, over-temperature pre-warning,
and reset. A second 5.0V regulator can be implemented using external
pass PNP bipolar junction pass transistor driven by the SBC’s external
V2 sense input and V2 output drive pins.
The SBC has four main operating modes: Normal, Standby, Stop, and
Sleep mode. Additionally there is an internally switched high side power
supply output, four wake-up inputs pins, a programmable window
watchdog, interrupt, reset, and a SPI module for communication and
control. The high speed CAN A and B transceiver is available for inter-
module communication.
SYSTEM BASIS CHIP
DW SUFFIX
EG SUFFIX (PB-FREE)
98ASB42345B
28-PIN SOICW
EP SUFFIX
(PB-FREE)
98ASA10825D
48-PIN QFN
Features
• 1.0Mbps CAN transceiver bus interface with bus diagnostic capability
• SPI control at frequencies up to 4.0Mhz
• 5.0V low dropout voltage regulator with current limiting, over-
temperature prewarning, and output monitoring and reset
• a Second 5.0V regulator capability using an external series pass
transistor
• Normal, Standby, Stop, and Sleep modes of operation with Low sleep
and Stop mode current
• A high side (HS) switch output driver for controlling external circuitry.
• Pb-free packaging designated by suffix code EG and EP
ORDERING INFORMATION
Device
MC33742DW/R2
Temperature
Range (TA)
Package
MCZ33742EG/R2
MC33742SDW/R2 -40°C to 125°C
MCZ33742SEG/R2
28 SOICW
MC33742EP/R2
48 QFN
5.0V
MCU
CS
SCLK
SPI
MOSI
MISO
GND
VPWR
33742
V2
VDD VSUP
V2CTRL
RST
V2
CS
L0
SCLK L1
MOSI L2
MISO L3
WDOG
INT
HS
TXD CANH
RXD
CANL
GND
Safe
Circuitry
ECU Local
Circuitry
Twisted
CAN Bus
Pair
VPWR
Figure 1. 33742 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2007-2008. All rights reserved.
 

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