MAX7359

PRODUCTION

2-Wire Interfaced Low-EMI Key Switch Controller/GPO

Low-Voltage, Low-EMI, and Low-Supply Current Key-Switch Controller Monitors Up to 64 Keys Without External Components

Data Sheet (Rev. 4) Product Selection Table
Part Models
2
1ku List Price
Starting From $4.95
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Part Details

  • Optional Key Release Detection on All Keys
  • Monitor Up to 64 Keys
  • +1.62V to +3.6V Operation
  • Autosleep and Autowake to Minimize Current Consumption
  • Under 1µA Sleep Current
  • FIFO Queues Up to 16 Debounced Key Events
  • Key Debounce Time User Configurable from 9ms to 40ms
  • Low-EMI Design Uses Static Matrix Monitoring
  • Hardware Interrupt at the FIFO Level or at the End of Definable Time Period
  • Up to Seven Open-Drain Logic Outputs Available Capable of Driving LEDs
  • 400kbps, 5.5V-Tolerant, 2-Wire Serial Interface
  • Selectable 2-Wire, Serial-Bus Timeout
  • Four I²C Address Choices
  • Small, 24-Pin TQFN Package (3.5mm x 3.5mm) , or 25-Pin WLP Package (2.31mm x 2.31mm)
MAX7359
2-Wire Interfaced Low-EMI Key Switch Controller/GPO
MAX7359: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 1

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Software Resources

Device Drivers 1

Tools & Simulations

Software Development 1

Evaluation Kits

MAX7359EVKIT

Evaluation Kit for the MAX7359

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Features and Benefits

  • Windows 2000/XP/Vista (32-Bit)-Compatible Software
  • Proven PCB Layout
  • Complete Evaluation System
  • 8 x 8 Key Matrix Included
  • Optional PORT2–PORT7 Output LEDs
  • Fully Assembled and Tested

Product Details

The MAX7359 evaluation kit (EV kit) is an assembled and tested printed-circuit board (PCB) that demonstrates the MAX7359 2-wire interfaced low-EMI key switch controller. Windows® 2000/XP/Vista-compatible software provides a handy user interface to exercise the features of the MAX7359.

Applications

  • Cell Phones
  • Handheld Games
  • PDAs
  • Portable Consumer Electronics
MAX7359EVKIT
Evaluation Kit for the MAX7359

Reference Designs

5404fig01
5404fig01
5404fig03
LFRD003 Circuits from the lab

Water Meter Automatic Meter Reading (AMR) Reference Design

View Detailed Reference Design

Features and Benefits

  • Proven printed circuit board (PCB) layout
  • Proven component parts list
  • Preprogrammed transceiver (TRX) pair for quick demonstration capabilities
  • Free MAXQ® microcontroller programming tools available for flexible operations
5391fig00a
5391fig00a
5391fig00b
5391fig01
LFRD002 Circuits from the lab

Wireless Automatic Meter Reading Reference Design

View Detailed Reference Design

Features and Benefits

Features

  • Proven printed circuit board (PCB) layout
  • Proven component parts list
  • Preprogrammed transceiver (TRX) pair for quick demonstration capabilities
  • Free MAXQ® microcontroller programming tools available for flexible operation

Quick Start

  1. Pull the three boards (two MTR boards and the RDR board) out of box and install the batteries.
  2. Connect the RDR antenna.
  3. Navigate the RDR menu system MAIN MENU -> AMR MENU -> START COMM
LFRD003
Water Meter Automatic Meter Reading (AMR) Reference Design
5404fig01
5404fig03
LFRD002
Wireless Automatic Meter Reading Reference Design
5391fig00a
5391fig00b
5391fig01

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