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MAX6957ATL+ from MAIXM

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MAX6957ATL+

Manufacturer: MAIXM, MAXIM

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander

Partnumber Manufacturer Quantity Availability
MAX6957ATL+ MAIXM, MAXIM 2635 In Stock

Description and Introduction

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander The MAX6957ATL+ is a versatile LED driver manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX6957ATL+  
- **Type:** LED Driver  
- **Interface:** I²C, 2-Wire Serial  
- **Number of Segments:** 28  
- **Number of Digits:** 7 (or 8 with multiplexing)  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 40-TQFN (6x6mm)  
- **Features:** Integrated keypad controller, PWM brightness control, flicker-free operation  

### **Descriptions:**  
The MAX6957ATL+ is a compact, high-efficiency LED driver designed for driving 7-segment displays, bar graphs, and discrete LEDs. It supports an I²C-compatible interface for easy microcontroller communication. The device includes an integrated keypad controller, allowing it to manage both LED displays and keypad inputs. It operates over a wide voltage range, making it suitable for battery-powered and industrial applications.  

### **Features:**  
- **28-segment LED driver** (supports 7-segment digits or discrete LEDs)  
- **I²C-compatible 2-wire serial interface** (up to 400kHz)  
- **Integrated keypad controller** (supports 8x8 matrix)  
- **PWM brightness control** (16-step adjustable)  
- **Flicker-free LED drive**  
- **Wide operating voltage range** (2.7V to 5.5V)  
- **Low-power shutdown mode**  
- **40-pin TQFN package** (space-efficient design)  
- **Extended temperature range** (-40°C to +125°C)  

This information is strictly factual and sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander

Alternative Part Number

  • PCA9555PW --: 16-bit I2C GPIO expander with similar LED driving and port expansion functionality, widely available and pin-compatible in function.
  • MCP23017-E/ML --: 16-bit I2C I/O expander offering comparable GPIO expansion and LED drive capability in a compact package.
  • TCA9555PWR --: 16-bit I2C GPIO expander with interrupt output, a common drop-in functional alternative for port expansion applications.
  • PCA9535PW --: I2C 16-bit I/O expander with similar GPIO expansion function and widely available alternative.
  • MCP23017-E/SS --: I2C 16-bit I/O expander offering comparable port expansion capability in a similar package.

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