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MC33742 Datasheet

System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver

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MOTOROLA
Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33742
Rev 2.0, 10/2004
Advance Information
System Basis Chip (SBC) with
Enhanced High-Speed CAN
Transceiver
The 33742 and the 33742S are monolithic integrated circuits combining
many functions frequently used by automotive environmental control units
(ECUs).
The 33742 is an SBC having a fully protected fixed 5.0 V low-drop regulator
with current limit, overtemperature pre-warning, and reset. An output drive with
sense input is also provided to implement a second 5.0 V regulator, using an
external PNP bipolar junction transistor. The 33742 has normal, standby, stop,
and sleep modes, an internally switched high-side power supply output with
four wake-up inputs, programmable window watchdog, interrupt, reset, SPI
input control, and a high-speed CAN transceiver compatible with CAN 2.0 A
and B protocols for module-to-module communication.
Features
• High-Speed 1.0 Mbps CAN Interface with Bus Diagnostic Capability
(Detection of CANH and CANL Short to Ground, to VDD, and to VSUP)
• Low-Drop Voltage 5.0 V, 200 mA VDD Regulator with Current-Limiting,
Overtemperature Pre-Warning, and Output Monitoring with Reset
• Additional 5.0 V Regulator with External Series Pass Transistor
• Normal, Standby, Stop, and Sleep Modes with Low Sleep and Stop
Mode Current
• 150 mA High-Side Switch Output for Control of External Circuitry
• Four External Wake-Up Inputs
• Software-Programmable Watchdog Window, Interrupt, and Reset
33742
33742S
SYSTEM BASIS CHIP
WITH ENHANCED
HIGH-SPEED CAN
DW SUFFIX
CASE 751F-05
28-TERMINAL SOICW
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33742DW/R2
MC33742SDW/R2
-40°C to 125°C
28 SOICW
5.0 V
MCU
CS
SCLK
MOSI
MISO
GND
33742 Simplified Application Diagram
VPWR
3333774422
VDD VSUP
V2
V2CTRL
RST
V2
CS L0
SPI SCLK L1
MOSI
L2
MISO
L3
WDOG
INT
HS
TXD CANH
RXD CANL
GND
VPWR
Safe Circuitry
ECU Local
Supply
Twisted
Pair
CAN Bus
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Motorola, Inc. 2004
For More Information On This Product,
Go to: www.freescale.com


Motorola Electronic Components Datasheet

MC33742 Datasheet

System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver

No Preview Available !

Freescale Semiconductor, Inc.
Motorola Part No.
33742
33742S
Reset Duration
15 ms (typical)
3.5 ms (typical)
Table 1. Significance Device Differences
Device Differences
The duration of the reset mode, in which the RST terminal is asserted low, is 15 ms
typical. Reset mode is entered after device power up, when a VDD undervoltage
condition occurred and if the watchdog register is not properly triggered.
The duration of the reset mode, in which the RST terminal is asserted low, is 3.5 ms
typical. Reset mode is entered after device power up, when a VDD undervoltage
condition occurred and if the watchdog register is not properly triggered.
See Page
15
15
VSUP
HS
L0
L1
L2
L3
CANH
CANL
V2CTRL
V2
VSUP Monitor
Dual Voltage Regulator
CAN
VDD Monitor
5.0 V/200 mA Supply
HS Control
Mode Control
Oscillator
VDD
Programmable
Wake-Up Input
Interrupt
Watchdog
Reset
SPI
High-Speed 1.0 Mbps
CAN
Physical Interface
INT
WDOG
RST
MOSI
SCLK
MISO
CS
V2
TXD
RXD
GND
Figure 1. 33742 Simplified Internal Block Diagram
33742
2
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
For More Information On This Product,
Go to: www.freescale.com


Part Number MC33742
Description System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver
Maker Motorola
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MC33742 Datasheet PDF






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