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ADP5589:  Keypad Decoder and I/O Expansion

Product Details

Product Status:Recommended for New Designs

The ADP5589 is a 19 channel GPIO (General Purpose Input/Output) port expander with built-in keypad matrix decoder, programmable logic, reset logic, and PWM generator. The IC is capable of handling QWERTY size keyboards and GPIO expansion. I/O expander ICs are used in portable devices (phones, remote controls, & cameras) and non-portable applications (healthcare, industrial & instrumentation). I/O expanders can be used to increase the number of I/Os available to a processor or to reduce the number of I/Os required through interface connectors for front panel designs.

The ADP5589 handles all key scanning and decoding and can flag the main processor via an interrupt line that new key events have occurred. GPI changes and logic changes can also be tracked as events via the FIFO, eliminating the need to monitor different registers for event changes. The ADP5589 is equipped with a FIFO to store up to 16 events. Events can be read back by the processor via an I2C-compatible interface.

The ADP5589 frees up the main processor from having to monitor the keypad, thereby reducing power consumption and/or increasing processor bandwidth for performing other functions. The programmable logic functions allow common logic requirements to be integrated as part of the GPIO expander, saving board area and cost. Reference software Linux driver is available.

FEATURES and BENEFITS

  • 16-element FIFO for event recording
  • 19 configurable I/Os allowing functions
  • Keypad decoding for matrix up to 11 x 8
  • Key press/release interrupts
  • Key pad lock/unlock
  • GPIO functions
  • GPI with selectable interrupt level
  • 100 kΩ/300 kΩ pull-up
  • 300 kΩ pull-down
  • GPO with push-pull or open drain
  • Dual programmable logic blocks
  • PWM generator
    Internal PWM generation
    AND internal with external PWM
  • Clock divider
  • Reset generators
  • I2C interface with Fast-mode plus (Fm+) support up to 1 Mbps
  • Open-drain interrupt output
  • 24-lead LFCSP
Launch of ADIsimPower Voltage Regulator Selection Vin (min) V Vout V   Find Solutions
Vin (max) V Iout A

Documentation

Title Content Type File Type
ADP5589: Keypad Decoder and I/O Expansion Data Sheet (Rev B, 01/2013) (pdf, 89 kB) Data Sheets PDF
Introduction to ADIsimPower
ADIsimPower is a smart selector and a collection of downloadable tools that produce complete and optimized power designs. Schematic, bill of materials, and performance data are customized to your specific needs in minutes.
Videos HTML
Isolating Power in Communication Bus and Gate Drive Applications
Starting with a communications application overview of small power options through the process of selecting the right power products this webcast is a great resource for your communications applications designs.
Webcasts WEBCAST
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
Download files for ADIsimPower™ Voltage Regulator Design Tool
The individual Excel-based voltage regulator design tools used in ADIsimPower™.
ADIsim Design/Simulation Tools HTML
ADIsimPower™ Voltage Regulator Design Tool
This expert design tool produces custom DC-DC converter designs in about a minute. The user enters 5 inputs and chooses to optimize for efficiency, PCB space, cost, or part count. Output is a complete schematic, BOM, efficiency plot, and performance summary. A PDF summary and a blank PCB is offered for each design to facilitate fast prototyping to verify the design.
ADIsim Design/Simulation Tools HTML
ADP5589 Pmod Xilinx FPGA Reference Design FPGA HDL HTML
ADP5589 - No-OS Driver for Renesas Microcontroller Platforms Device Drivers HTML
ADP5589 - No-OS Driver for Microchip Microcontroller Platforms Device Drivers HTML
ADP5589 Input Keyboard and GPIO Linux Driver Device Drivers HTML
Launch of ADIsimPower Voltage Regulator Selection Vin (min) V Vout V   Find Solutions
Vin (max) V Iout A

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADP5589 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP5589ACBZ-00-R7 Status: Production 25 Ball WLCSP 25 Ind Reel, 3000 - $1.20 Y  Material Info PCN Purchase Sample
ADP5589ACBZ-01-R7 Status: Production 25 Ball WLCSP 25 Ind Reel, 3000 - $1.20 Y  Material Info PCN Purchase Sample
ADP5589ACBZ-02-R7 Status: Production 25 Ball WLCSP 25 Ind Reel, 3000 - $1.20 Y  Material Info PCN Purchase Sample
ADP5589ACPZ-00-R7 Status: Production LFCSP:LEADFRM CHIP SCALE 24 Ind Reel, 1500 - $1.20 Y  Material Info PCN Purchase Sample
ADP5589ACPZ-01-R7 Status: Production LFCSP:LEADFRM CHIP SCALE 24 Ind Reel, 1500 - $1.20 Y  Material Info PCN Purchase Sample
ADP5589ACPZ-02-R7 Status: Production LFCSP:LEADFRM CHIP SCALE 24 Ind Reel, 1500 - $1.20 Y  Material Info PCN Purchase Sample
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADP5589 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP5589CP-EVALZ Status: Production Evaluation Board $160.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

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