Evaluation Board for CD1020 - 22-Channel Switch Detection Interface

FRDMCD1020EVM

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The FRDMCD1020EVM Evaluation Board (EVB) features the CD1020, a 22-channel switch detection interface with a programmable wetting current.

The kit is designed to detect the opening and closing 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 the analog voltage at the inputs.

Supported Devices

Interfaces

Signal Conditioners

  • CD1020: Low-Cost 22-CH Multiple Switch Detect Interface

Features

General Specifications

  • CD1020 device with 22 channel switch detection and status report capability

Connectivity

  • Single row interface connectors for the NXP FRDM-KL25Z preprogrammed communication board
  • Single load connector with 36 pins, 100 MIL pin spacing for easy interface with external switch loads

Power Management

  • Direct connection to battery power with optional 3.3 V / 5.0 V LDO for VDDQ rail supply

Components

  • Status LEDs to report the status of the CD1020 Interrupt (INT) and wake-up lines

Buy Options

FRDMCD1020EVM-Image

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  • FRDMCD1020EVM

  • Freedom Expansion Board, CD1020, 22 switch detection interface.

    • The FRDMCD1020EVM development kit contents include:
    • Assembled and tested FRDMCD1020EVM customer evaluation board/module and preprogrammed FRDM-KL25Z SPI Communication Board in an anti-static bag
    • USB Male (standard) to USB Male (mini) cable
    • Quick Start Guide
  • $123.17 USD
  • For a quantity of 1
    • Availability: In stock
    • Inventory: 6
    • Shipping: Normally ships 1-2 business days
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