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Freescale Semiconductor Electronic Components Datasheet



MC33911

LIN System Basis Chip



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MC33911 pdf
Freescale Semiconductor
Advance Information
LIN System Basis Chip with DC
Motor Pre-driver
Document Number: MC33911
Rev. 4.0, 2/2008
33911
The 33911 is a Serial Peripheral Interface (SPI)-controlled System
Basis Chip (SBC) combining many frequently used functions in an
MCU-based system, plus a Local Interconnect Network (LIN)
transceiver. The 33911 has a 5.0V - 60mA low dropout regulator with
full protection and reporting features. The device provides full SPI-
readable diagnostics and a selectable timing watchdog for detecting
errant operation. The LIN Protocol Specification 2.0 compliant LIN
transceiver, has waveshaping circuitry that can be disabled for higher
data rates.
SYSTEM BASIS CHIP WITH LIN
2ND GENERATION
One 60mA high side switch and two 160mA low side switches with
www.DataSheeot4uUtp.cuotmprotection are available for driving resistive and inductive loads.
All outputs can be pulse-width modulated (PWM). Two high-voltage
inputs are available for use in contact monitoring, or as external wake-
up inputs. These inputs can be used as high-voltage analog Inputs.
The voltage on theses pins is divided by a selectable ratio and
available via an analog multiplexer.
The 33911 has three main operating modes: Normal (all functions
available), Sleep (VDD off, wake-up via LIN, wake-up inputs (L1,L2),
cyclic sense, and forced wake-up), and Stop (VDD on with limited
current capability, wake-up via CS, LIN bus, wake-up inputs, cyclic
sense, forced wake-up, and external reset).
The 33911 is compatible with LIN Protocol Specification 2.0.
Features
AC SUFFIX (Pb-FREE)
98ASH70029A
32-PIN LQFP
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
• One 60mA high side switch and two 160mA low side switches
MC33911BAC/R2
• Two high-voltage analog/logic inputs
• Full-duplex SPI Interface at frequencies up to 4MHz
MC34911BAC/R2
• LIN transceiver capable of up to 100kbps with wave shaping
• Configurable window watchdog
• 5.0V low drop regulator with fault detection and low-voltage reset (LVR) circuitry
• Pb-free packaging designated by suffix code AC
-40°C to 125°C
-40°C to 85°C
32-LQFP
VBAT
33911
VS1 VSENSE
VS2 HS1
L1
L2
VDD
MCU
PWMIN
ADOUT0
MOSI
MISO
SCLK
CS
RXD
TXD
IRQ
RST
LS1
LS2
WDCONF
LIN
M
LIN INTERFACE
Figure 1. 33911 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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MC33911 pdf
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
www.DataSheet4U.com
RST IRQ
INTERRUPT
CONTROL
MODULE
LVI, HVI, HTI, OCI
RESET CONTROL
MODULE
LVR, HVR, HTR, WD
PWMIN
MISO
MOSI
SCLK
CS
ADOUT0
WINDOW
WATCHDOG
MODULE
SPI
&
CONTROL
WAKE-UP MODULE
VS2 VS1 VDD
VOLTAGE REGULATOR
LOW SIDE
CONTROL
MODULE
HIGH SIDE
CONTROL
MODULE
VS2
VBAT
SENSE MODULE
CHIP TEMPERATURE
SENSE MODULE
ANALOG INPUT
MODULE
RXD
LIN PHYSICAL
TXD LAYER
DIGITAL INPUT MODULE
LGND
WDCONF
Figure 2. 33911 Simplified Internal Block Diagram
AGND
LS1
LS2
PGND
HS1
VSENSE
L1
L2
LIN
33911
2
Analog Integrated Circuit Device Data
Freescale Semiconductor



Part Number MC33911
Description LIN System Basis Chip
Maker Freescale Semiconductor - Freescale Semiconductor
Total Page 30 Pages
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