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MAX731CPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX731CPA

Manufacturer: MAXIM

+5V/Adjustable Step-Up Current-Mode DC-DC Converters

Partnumber Manufacturer Quantity Availability
MAX731CPA MAXIM 18 In Stock

Description and Introduction

+5V/Adjustable Step-Up Current-Mode DC-DC Converters The MAX731CPA is a serial-interfaced peripheral manufactured by Maxim Integrated (now part of Analog Devices). Below are its factual specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Part Number:** MAX731CPA  
- **Package:** 20-pin PDIP (Plastic Dual Inline Package)  
- **Interface:** I²C-compatible 2-wire serial interface  
- **Operating Voltage:** 2.7V to 5.5V  
- **Number of I/O Ports:** 8 bidirectional I/O pins  
- **Output Current per Pin:** 20mA (sink/source)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Clock Frequency:** Up to 400kHz (I²C Fast Mode)  

### **Descriptions:**
- The MAX731CPA is an I²C-controlled I/O expander that provides 8 configurable GPIO (General Purpose Input/Output) pins.  
- It is designed to simplify microcontroller-based systems by expanding I/O capabilities via a serial interface.  
- Each I/O pin can be independently configured as an input or output.  

### **Features:**
- **Bidirectional I/O Expansion:** 8 programmable I/O pins.  
- **I²C Interface:** Compatible with standard and fast-mode I²C (up to 400kHz).  
- **Low Standby Current:** Suitable for power-sensitive applications.  
- **Software-Configurable Pins:** Each pin can be set as input or output via I²C commands.  
- **Internal Power-On Reset:** Ensures predictable startup conditions.  
- **Open-Drain Interrupt Output:** Alerts the master device of input changes.  

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

Application Scenarios & Design Considerations

+5V/Adjustable Step-Up Current-Mode DC-DC Converters

Alternative Part Number

  • ICL7660CPA --: Pin-compatible CMOS voltage converter in the same 8-pin DIP package with similar charge-pump function, widely available as a direct substitute.
  • LT1054CN8 --: Switched-capacitor voltage converter with higher output current and same DIP-8 footprint, suitable functional replacement for MAX731 applications.
  • TC7660CPA --: Low-cost CMOS charge-pump voltage converter in DIP-8, pin-compatible with the MAX731 and commonly used as a drop-in alternative.

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