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Freescale Semiconductor Electronic Components Datasheet

MCZ33742S Datasheet

System Basis Chip

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MCZ33742S pdf
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Advance Information
Document Number: MC33742
Rev. 10.0, 5/2007
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.
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)
98ARH99048A
48-PIN QFN
Features
• 1.0 Mbps CAN Transceiver Bus Interface with Bus Diagnostic
Capability
• 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.
• Pb-Free Packaging Designated by Suffix Code EG and EP
ORDERING INFORMATION
Device
MC33742DW/R2
Temperature
Range (TA)
MCZ33742EG/R2
MC33742SDW/R2 -40°C to 125°C
MCZ33742SEG/R2
Package
28 SOICW
PCZ33742EP/R2
48 QFN
VPWR
33742
5.0 V
VDD VSUP
V2
MCU
RST V2CTRL
V2
VPWR
CS
SCLK
MOSI
MISO
CS L0
SPI
SCLK
MOSI
L1
L2
MISO
L3
WDOG
INT HS
Safe Circuitry
ECU Local
Supply
TXD CANH
RXD CANL
Twisted CAN Bus
Pair
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.


Freescale Semiconductor Electronic Components Datasheet

MCZ33742S Datasheet

System Basis Chip

No Preview Available !

MCZ33742S pdf
DEVICE VARIATIONS
DEVICE VARIATIONS
Table 1. Device Differences During a Reset Condition
Part No.
33742
33742S
Reset Duration
15 ms (typical)
3.5 ms (typical)
Device Differences
The duration the RST pin is asserted low when the Reset mode is entered after
the SBC is powered up and a VDD undervoltage condition is detected and the
watchdog register is not properly triggered.
The duration the RST pin is asserted low when the Reset mode is entered after
the SBC is powered up and a VDD undervoltage condition is detected and the
watchdog register is not properly triggered.
See Page
page 19
page 19
33742
2
Analog Integrated Circuit Device Data
Freescale Semiconductor


Part Number MCZ33742S
Description System Basis Chip
Maker Freescale Semiconductor
Total Page 30 Pages
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