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MAX6955AAX+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX6955AAX+T

Manufacturer: MAXIM

2-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan

Partnumber Manufacturer Quantity Availability
MAX6955AAX+T,MAX6955AAXT MAXIM 822 In Stock

Description and Introduction

2-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan The MAX6955AAX+T is a versatile display driver manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX6955AAX+T  
- **Type:** LED Display Driver  
- **Interface:** I²C-Compatible Serial Interface  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Number of Segments:** Up to 132 (or 28 x 5 digits)  
- **Current per Segment:** Adjustable (up to 40mA)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 36-Pin SSOP (Shrink Small Outline Package)  
- **Dimming Control:** 16-Step Digital Brightness Control  
- **Keypad Scanning:** Integrated 8x5 Keypad Scanner  

### **Descriptions:**  
The MAX6955AAX+T is a compact, high-efficiency LED driver designed for multiplexed seven-segment, 14-segment, or dot-matrix displays. It supports an I²C-compatible serial interface for easy communication with microcontrollers. The device includes features like individual segment current control, keypad scanning, and low-power operation, making it suitable for industrial, automotive, and consumer applications.  

### **Features:**  
- **Multiplexed Display Support:** Drives up to 28 digits (7-segment) or 5 digits (14-segment).  
- **Integrated Keypad Scanner:** 8x5 matrix for button input detection.  
- **Segment Current Control:** Adjustable via external resistor.  
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **Fault Detection:** Open- and short-circuit LED detection.  
- **Flexible Configuration:** Supports common-cathode or common-anode displays.  
- **Software-Controlled Brightness:** 16-step dimming for each segment.  

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

Application Scenarios & Design Considerations

2-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan

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