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1 design file
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Printed Circuit Boards and Schematics
Gerber files for the KIT34978EKEVB Evaluation Kit
Evaluation kit - MC34978, 22 Channel Switch Detection
- This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.
The KIT34978EKEVB Evaluation Board (EVB) features the MC34978 - 22 Channel Switch Detection Interface with programmable wetting current. The kit 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 24-to-1 analog multiplexer for reading inputs as analog.
Product Details
Supported Devices
Interfaces
Signal Conditioners
- MC34978: Switch Detection Interface, 22 I/Os, Programmable Wetting Current, Temp Sensor, 3.3 V / 5.0 V SPI
Features
Connectivity
- An onboard 16-pin interface connector for the NXP® SPI-to-USB Interface Dongle (KITUSBSPIDGLEVME)
- Double row, 100 mils SGx/SPx pin connectors for easy interface with external loads
Power Management
- Direct connection to battery power with optional 5 V/3.3 V LDO for VDDQ rail supply
User Components
- Status LEDs to report the status of the MC34978 Interrupt (INT) and wake-up lines
Documentation
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3 documents
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User Guide
KT33978UG, KIT33978EKEVB and KIT34978EKEVB Evaluation Board - User’s GuideFeatured
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Fact Sheet
Multiple Switch Detection Interface (MSDI)