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MC33972EW

Description
SPECIALTY INTERFACE CIRCUIT, PDSO32
Categorysemiconductor    Analog mixed-signal IC   
File Size488KB,28 Pages
ManufacturerMotorola ( NXP )
Websitehttps://www.nxp.com
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MC33972EW Overview

SPECIALTY INTERFACE CIRCUIT, PDSO32

MC33972EW Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals32
Maximum operating temperature125 Cel
Minimum operating temperature-40 Cel
Maximum supply voltage 15.25 V
Minimum supply voltage 13.1 V
Processing package descriptionPlastic, SOIC-32
stateTRANSFERRED
packaging shapeRectangle
Package SizeSMALL OUTLINE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.6500 mm
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelAUTOMOTIVE
Maximum supply voltage 226 V
Minimum supply voltage 28 V
Rated supply voltage 213 V
Interface TypeInterface Circuit
Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33972
Rev 3.0, 12/2004
Advance Information
33972
Multiple Switch Detection Interface
with Suppressed Wake-Up
The 33972 Multiple Switch Detection Interface with Suppressed Wake-Up is
designed to detect the closing and opening of up to 22 switch contacts. The
switch status, either open or closed, is transferred to the microprocessor unit
(MCU) through a serial peripheral interface (SPI). The device also features a
22-to-1 analog multiplexer for reading inputs as analog. The analog input
signal is buffered and provided on the AMUX output terminal for the MCU to
read.
MULTIPLE SWITCH
DETECTION INTERFACE WITH
SUPPRESSED WAKE-UP
Freescale Semiconductor, Inc...
The 33972 device has two modes of operation, Normal and Sleep. Normal
mode allows programming of the device and supplies switch contacts with
pullup or pulldown current as it monitors switch change of state. The Sleep
mode provides low quiescent current, which makes the 33972 ideal for
automotive and industrial products requiring low sleep state currents.
Features
Designed to Operate 5.5 V
V
PWR
26 V
Switch Input Voltage Range -14 V to V
PWR
, 40 V Max
Interfaces Directly to Microprocessor Using 3.3 V/5.0 V SPI Protocol
Selectable Wake-Up on Change of State
Selectable Wetting Current (16 mA or 2.0 mA)
8 Programmable Inputs (Switches to Battery or Ground)
14 Switch-to-Ground Inputs
V
PWR
Standby Current 100
µA
Typical, V
DD
Standby Current 20
µA
Typical
• Active Interrupt (
INT
) on Change-of-Switch State
• Pb-Free Packaging Designated by Suffix Code EW
DWB SUFFIX
EW (Pb-FREE) SUFFIX
CASE 1324-02
32-TERMINAL SOICW
ORDERING INFORMATION
Device
MC33972DWB/R2
MC33972EW/R2
Temperature
Range (T
A
)
-40
°
C to 125
°
C
Package
32 SOICW
Simplified Application Diagram
33972 Simplified Application Diagram
VDD
VBAT
VBAT
SP0
SP1
VBAT
SP7
Power Supply
LVI
Enable
Watchdog
Reset
33972
VPWR
VDD
WAKE
SI
SCLK
CS
SO
INT
AMUX
MCU
SG0
SG1
SG12
MOSI
SCLK
CS
MISO
INT
AN0
SG13
GND
This document contains 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

MC33972EW Related Products

MC33972EW MC33972EW/R2 MC33972DWB MC33972DWB/R2 MC33972
Description SPECIALTY INTERFACE CIRCUIT, PDSO32 SPECIALTY INTERFACE CIRCUIT, PDSO32 SPECIALTY INTERFACE CIRCUIT, PDSO32 SPECIALTY INTERFACE CIRCUIT, PDSO32 SPECIALTY INTERFACE CIRCUIT, PDSO32
Number of functions 1 1 1 1 1
Number of terminals 32 32 32 32 32
Maximum operating temperature 125 Cel 125 Cel 125 °C 125 Cel 125 Cel
Minimum operating temperature -40 Cel -40 Cel -40 °C -40 Cel -40 Cel
surface mount Yes Yes YES Yes Yes
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal location pair pair DUAL pair pair
Temperature level AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Maximum supply voltage 1 5.25 V 5.25 V - 5.25 V 5.25 V
Minimum supply voltage 1 3.1 V 3.1 V - 3.1 V 3.1 V
Processing package description Plastic, SOIC-32 Plastic, SOIC-32 - 0.65 MM PITCH, LEAD FREE, PLASTIC, SOIC-32 Plastic, SOIC-32
state TRANSFERRED TRANSFERRED - DISCONTINUED TRANSFERRED
packaging shape Rectangle Rectangle - Rectangle Rectangle
Package Size SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH - SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH
Terminal spacing 0.6500 mm 0.6500 mm - 0.6500 mm 0.6500 mm
Packaging Materials Plastic/Epoxy Plastic/Epoxy - Plastic/Epoxy Plastic/Epoxy
Maximum supply voltage 2 26 V 26 V - 26 V 26 V
Minimum supply voltage 2 8 V 8 V - 8 V 8 V
Rated supply voltage 2 13 V 13 V - 13 V 13 V
Interface Type Interface Circuit Interface Circuit - Interface Circuit Interface Circuit

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