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33742

更新时间: 2022-04-23 23:00:11
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飞思卡尔 - FREESCALE /
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65页 1605K
描述
System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver

33742 数据手册

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Document Number: MC33742  
Rev. 10.0, 5/2007  
Freescale Semiconductor  
Advance Information  
System Basis Chip (SBC) 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 5.0 V low dropout  
internal regulator with current limiting, overtemperature pre-warning, and  
reset. A second 5.0 V 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.  
SYSTEM BASIS CHIP  
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.  
DW SUFFIX  
EG SUFFIX (PB-FREE)  
98ASB42345B  
EP SUFFIX  
(PB-FREE)  
98ARH99048A  
48-PIN QFN  
28-PIN SOICW  
Features  
• 1.0 Mbps CAN Transceiver Bus Interface with Bus Diagnostic  
Capability  
ORDERING INFORMATION  
• SPI Control at Frequencies up to 4.0 Mhz  
• 5.0 V Low Dropout Voltage Regulator with Current Limiting,  
Overtemperature Pre-Warning, and Output Monitoring and Reset  
• A Second 5.0 V 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.  
Temperature  
Range (TA)  
Device  
Package  
MC33742DW/R2  
MCZ33742EG/R2  
MC33742SDW/R2  
MCZ33742SEG/R2  
PCZ33742EP/R2  
28 SOICW  
48 QFN  
-40°C to 125°C  
• Pb-Free Packaging Designated by Suffix Code EG and EP  
V
PWR  
33742  
V
2
VDD  
VSUP  
5.0 V  
V2CTRL  
V2  
RST  
MCU  
V
PWR  
CS  
SCLK  
MOSI  
MISO  
CS  
L0  
L1  
L2  
L3  
SCLK  
MOSI  
MISO  
SPI  
Safe Circuitry  
WDOG  
INT  
ECU Local  
Supply  
HS  
Twisted  
CAN Bus  
Pair  
CANH  
CANL  
TXD  
RXD  
GND  
GND  
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. All rights reserved.  

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