MC33884DW Freescale Semiconductor, MC33884DW Datasheet

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MC33884DW

Manufacturer Part Number
MC33884DW
Description
IC SWITCH SDI MONITOR 24-SOIC
Manufacturer
Freescale Semiconductor
Datasheet

Specifications of MC33884DW

Applications
*
Interface
*
Voltage - Supply
*
Package / Case
24-SOIC (7.5mm Width)
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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Manufacturer
Quantity
Price
Part Number:
MC33884DW
Manufacturer:
ON
Quantity:
720
Part Number:
MC33884DWR2
Manufacturer:
ST
Quantity:
294
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2006. All rights reserved.
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as
may be required, to permit improvements in the design of its products.
Switch Monitor Interface
circuit (IC) to perform switch monitoring functions. The device provides
efficient interface between electrical switches and low voltage
microprocessors. The 33884 supplies switch contact pull-up and pull
down current while monitoring the input voltage level. All inputs are
protected for transients when implemented with an appropriate static
discharge capacitor used on the inputs.
Polling + INT Timer.
has the addition of an interrupt that is sent to the microprocessor if a
switch is sensed closed, or upon the internal interrupt timer times out.
An interrupt is ultimately sent to the microprocessor. All modes of
operation are easily programmed via the Serial Peripheral Interface
(SPI) control.
Features
The 33884 Switch Monitor Interface is a monolithic silicon integrated
There are four modes of operation: Sleep, Normal, Polling, and
The Polling and Timer modes are similar, except the Timer mode
• Full Operation with 7.0 V < V
• Input Voltage Range: -14 V to 40 V
• Interface Directly to Microprocessors Using SPI Protocol
• Wake Up on Change of Monitored Switch Status
• Programmable Wetting Current
• Four Switch-to-Ground Switches
• Six (Fixed Function) Inputs Monitoring Six Switch-to-Ground
• Two (Fixed Function) Inputs Monitoring Two Switch-to-Battery Switches
• Quiescent Current in Sleep Mode < 10 µA
• Reset Input Defaults the Device to Sleep Mode
• Pb-Free Packaging Designated by Suffix Code EG
5.5 V < V
Switches
PWR
< 7.0 V
PWR
Figure 1. 33884 Simplified Application Diagram
< 26 V, Limited Operation with
4 GND / V PWR
Sense Inputs
Sense Inputs
Sense Inputs
2 V PWR
6 GND
SB1
SB2
SP1
SP2
SP3
SP4
SG1
SG2
SG3
SG4
SG5
SG6
33884
RESET
VPWR
MASL
SYNC
SCLK
GND
VDD
VBG
INT
SO
CS
SI
MC33884DW/R2
MCZ33884EG/R2
V PWR
Device
V DD
SWITCH MONITOR INTERFACE
VDD
CS
MOSI
MISO
CLK
INT
RESET
GND
ORDERING INFORMATION
MCU
EG (PB-FREE) SUFFIX
98ASB42344B
24-PIN SOICW
33884
-40°C to 105°C
DW SUFFIX
Document Number: MC33884
Temperature
Range (T
A
)
Rev. 4.0, 11/2006
24 SOICW
Package

Related parts for MC33884DW

MC33884DW Summary of contents

Page 1

... Pb-Free Packaging Designated by Suffix Code EG Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. © Freescale Semiconductor, Inc., 2006. All rights reserved. < Limited Operation with MC33884DW/R2 MCZ33884EG/R2 V PWR 33884 VPWR SB1 ...

Page 2

... Normal, Polling, Sleep Polling Mode Oscillator Wake Up Slave Sync Master/Slave Select Figure 2. 33884 Simplified Block Diagram Metallic or Non-metallic SPI Decode PIB Configure, FIB/PIB Tri-State FIB/PIB Metallic CS SI SPI Interface SO SCLK INT RST SYNC MASL Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 3

... SB2 Switch-to-Battery Two 18 SG4 Switch-to-Ground Inputs Four 19 SG5 Switch-to-Ground Inputs Five 20 SG6 Switch-to-Ground Inputs Four 21 SP4 Switch Input One 22 VBG Bandgap Voltage Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS VDD 1 24 SCLK VBG SP1 4 21 SP4 SG1 5 20 SG6 ...

Page 4

... Table 1. 33884 Pin Definitions Pin Number Pin Name Formal Name 23 CS Chip Select 24 SCLK Serial Clock 33884 4 Definitions This pin is transmits communication to the device. This pin clocks the internal 16-bit Shift register of the device. Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 5

... Temperature and Moisture Sensitivity Levels (MSL www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics. Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Symbol ...

Page 6

... Analog Integrated Circuit Device Data Freescale Semiconductor Unit V µA µA µ µ ...

Page 7

... Rise and fall time for incoming SI, CS, and SCLK signals suggested for design consideration to prevent the occurrence of double pulsing. 12 Time required for output states data to be available at SO pin. Analog Integrated Circuit Device Data Freescale Semiconductor ≤ ≤ ≤ V 5.25 V, 9.0 V ...

Page 8

... V 5. -40°C DD PWR Symbol (13) t SO(DIS) (14) t VALID t REC ≤ ≤ T 105°C, unless otherwise 25°C under nominal PWR A Min Typ Max Unit — 80 110 ns — 65 105 ns — 100 120 ns Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 9

... SPI command will always return Switch Status, Master/ Slave, INT Flag, and Mode settings. The following section describes the programming modes and features of the 33884. Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION INTRODUCTION MICROPROCESSOR INTERFACE The M33884 directly interfaces to 3.3 or 5.0 V MCU. SPI serial clock frequencies in excess of 5 ...

Page 10

... Synchronization (SYNC) pin. This feature provides minimal quiescent from the voltage power (VPWR) and voltage digital drain (VDD) pins. MOSI SI 33884 MISO SO SCLK SCLK CS Ports RST INT INT SI 33884 SO SCLK CS RST INT Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 11

... The Voltage Power (VPWR) pin is battery/supply source pin for the 33884. The VPWR pin requires external reverse battery/supply and transient protection. Maximum input Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION FUNCTIONAL PIN DESCRIPTION voltage on VPWR All wetting currents and sustain currents are derived from VPWR ...

Page 12

... SI, and the SO pin is Tri-Stated. The response to a SPI command returns status based on previous command word. This previous command could be a hardware reset as well as any of the other commands discussed in this section. . Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 13

... The Sleep command places the IC in Sleep mode and essentially turns the part OFF. By definition, a hardware reset sends/keeps the IC in Sleep mode. All inputs are Tri-Stated, Table 6. Sleep Command MSB Command Sleep (Default Analog Integrated Circuit Device Data Freescale Semiconductor LOGIC COMMANDS AND REGISTERS ST3 ST2 ST1 — ...

Page 14

... WAIT [t (2.8ms typ) x Multiplier] DETECT 512 + 1 2400 - 3200 256 + 1 1200 - 1600 128 + 1 600 - 750 290 - 360 Analog Integrated Circuit Device Data Freescale Semiconductor LSB 1 CP1 U ON Time (ms) 5.1 - 6.3 5.1 - 6.3 5.1 - 6.3 5.1 - 6.3 5.1 - 6.3 5.1 - 6.3 5.1 - 6.3 ...

Page 15

... MGx, MBx, MPx Accept Switch Type: 0 Non-Metallic 1 Metallic (Enable Wetting Current Pulse) Analog Integrated Circuit Device Data Freescale Semiconductor Note: This configuration may be entered in any of the three valid Operating Modes (see MOD[2:1]) within the Run command. Table 11. Programmable Switch Bit Definition CPx ...

Page 16

... SG1 SP4 SP3 SP2 SP1 SB2 SG1 SP4 SP3 SP2 SP1 SB2 SG1 SP4 SP3 SP2 SP1 SB2 MASL = Master/Slave identification flag INT = External Interrupt flag Analog Integrated Circuit Device Data Freescale Semiconductor LSB 1 x LSB 1 x SB1 SB1 SB1 LSB 1 x ...

Page 17

... Timer SG[6:1] = Switch-to-ground flag SB[2:1] = Switch-to-battery flag SP[4:1] = Programmable switch flag Analog Integrated Circuit Device Data Freescale Semiconductor identify the device as the Master or a Slave, whether the device has an interrupt that has not been cleared, and the state of all the inputs. 13 ...

Page 18

... MC33884 10 nF 0805 100 SCLK INT CS RST MASL V BG 130k 0805 Figure 7. Typical Master/Slave Application MC68HCXX Microcontroller 10k 0805 16 Bit Shift Register M L MOSI MISO Parallel Ports RESET WDOG LVI RESET Control Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 19

... For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. Analog Integrated Circuit Device Data Freescale Semiconductor PACKAGING PACKAGE DIMENSIONS DW SUFFIX EG (Pb-FREE) SUFFIX PLASTIC PACKAGE 98ASB42344B ISSUE F PACKAGING PACKAGE DIMENSIONS 33884 19 ...

Page 20

... Removed MC33884EG/R2, and replaced with MCZ33884EG/R2 in the Ordering Information block • Removed Peak Package Reflow Temperature During Reflow (solder reflow) parameter from 11/2006 4.0 Maximum ratings on page Analog Integrated Circuit Device Data Freescale Semiconductor REVISION HISTORY 5. Added note with instructions from www.freescale.com. REVISION HISTORY 33884 20 ...

Page 21

... Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer ...

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