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MAX7301ATL from MAX,MAXIM - Dallas Semiconductor

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MAX7301ATL

Manufacturer: MAX, MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX7301ATL MAX, MAXIM 1110 In Stock

Description and Introduction

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander The MAX7301ATL is a serial-interfaced peripheral manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX7301ATL  
- **Type:** I/O Expander  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Number of I/O Pins:** 20 (16 programmable GPIOs, 4 dedicated inputs)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 36-Pin TQFN (Thin Quad Flat No-Lead)  

### **Descriptions:**  
The MAX7301ATL is a high-performance I/O expander designed to provide additional GPIO (General-Purpose Input/Output) ports for microcontrollers via an SPI interface. It features 20 I/O pins, with 16 configurable as inputs or outputs and 4 dedicated as inputs. The device operates over a wide voltage range, making it suitable for various embedded applications.  

### **Features:**  
- **SPI-Compatible Interface** (up to 26MHz)  
- **16 Programmable GPIO Pins** (individually configurable as input or output)  
- **4 Dedicated Input Pins** (with optional internal pull-up resistors)  
- **Low Standby Current** (1µA typical in shutdown mode)  
- **High Output Drive Strength** (up to 25mA per pin)  
- **Internal 10kΩ Pull-Up Resistors** (programmable for input pins)  
- **Software-Configurable Interrupt Output** (for input state changes)  
- **Wide Operating Voltage Range** (2.7V to 5.5V)  
- **Compact 36-Pin TQFN Package** (suitable for space-constrained designs)  

This information is derived from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • PCA9535PW --: 16-bit I2C GPIO expander with similar functionality and pin count, widely available and cost-effective.
  • MCP23017-E/SS --: 16-bit I2C GPIO expander offering comparable I/O expansion capability with good software support.
  • TCA9535PWR --: 16-bit I2C/SMBus I/O expander with similar register interface and low-power operation.

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