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MAX7359BETG+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX7359BETG+

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX7359BETG+ MAXIM 20000 In Stock

Description and Introduction

2-Wire Interfaced Low-EMI Key Switch Controller/GPO The MAX7359BETG+ is a key matrix decoder manufactured by Maxim Integrated (now part of Analog Devices). Below are its factual specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX7359BETG+  
- **Package:** 24-TQFN (4x4)  
- **Operating Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Interface:** I²C-compatible (up to 400kHz)  
- **Key Matrix Support:** 8x8 (64 keys)  
- **Debounce Time:** Programmable (4ms to 32ms)  
- **Interrupt Output:** Configurable for key press/release  
- **Current Consumption:**  
  - Active Mode: 1.5mA (typ)  
  - Shutdown Mode: 1µA (max)  

### **Descriptions:**
The MAX7359BETG+ is a key matrix decoder with an I²C interface, designed to simplify keypad interfacing in embedded systems. It supports up to 64 keys (8x8 matrix) and includes built-in debounce and interrupt generation for efficient key detection.  

### **Features:**  
- **I²C Interface:** Allows communication with microcontrollers.  
- **Programmable Debounce:** Adjustable debounce time (4ms, 8ms, 16ms, 32ms).  
- **Interrupt Output:** Reduces polling requirements by signaling key events.  
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **Wide Voltage Range:** Operates from 2.7V to 5.5V.  
- **Auto-Shutdown Mode:** Minimizes power when inactive.  
- **Key Press/Release Detection:** Reports key state changes.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

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

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