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MC33975EKR2 Multiple Switch Detection Interface IC Freescale

MC33975EKR2 Multiple Switch Detection Interface IC Freescale

Manufacturer: Freescale
Part Number: MC33975EKR2
Package: SOIC
Lead/Terminal Type: Surface Mount
Number Leads/Terminals: 32

Price: $4.88
200 available for immediate delivery
Code: CS131PD
Weight: 0.02oz ONZ
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Additional Information


Multiple Switch Detection Interfaces
Suppressed Wake-up and 32mA Wetting Current
32 Pin SOICW EP Package

The MC33975 is a Multiple Switch Detection Interface with Suppressed Wake-up. The device monitors the opening and closing of up to 22 switches. This is accomplished when the switch status is sent through a serial peripheral interface to the microprocessor. The MC33975 can read inputs as analog with it's 22-to-1 analog multiplexer.

Specs:
Fully Operational Supply Voltage: 8.0V min. ; 28.0V max.
Supply Current: 4.0mA typ. ; 8mA max.
(All Switches Open, Normal Mode, Tri-State Disabled)
Sleep State Supply Current: 40ľA min. ; 70ľA typ. 100ľA max.
(Scan Timer = 64ms, Switches Open)
Pulse Wetting Current Switch-to-Ground: 24mA min; 32mA typ.; 36mA max.
(Current Source - 8.0V ≤ VPWR ≤ 28V)
Input Offset Current when Selected as Analog: -2.0ľA min.; 1.4ľA typ. ; 2.0ľA max
Input Offset Voltage when Selected as Analog: -10mV min. ; 2.5mV typ. ; 10mV max.
(V(SP&SGINPUTS) to AMUX output)
Switch Detection Threshold: 3.7V min. ; 4.0V typ. ; 4.3V max.

Features:
Designed to operate from 5.5V ≤ VPWR ≤ 28V
Switch input voltage: -14 to 40V
Interfaces to microprocessor using 3.3V/5.0V SPI protocol
Selectable wake-up on change of state
14 switch-to-ground inputs
8 programmable inputs (switches to battery or ground)
Sleep State current VPWR 100μA, Vdd 20μA

Applications:
Automotive
Computer
Telecommunications
Industrial Controls

Manufactured by: Freescale
Part Number: MC33975EKR2

Full Datasheet: MC33975EKR2

RoHS Compliant