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STMPE1601TBR from ST,ST Microelectronics

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STMPE1601TBR

Manufacturer: ST, STM

16-bit enhanced port expander with keypad and PWM controller Xpander Logic

Partnumber Manufacturer Quantity Availability
STMPE1601TBR ST, STM 19400 In Stock

Description and Introduction

16-bit enhanced port expander with keypad and PWM controller Xpander Logic The STMPE1601TBR is a general-purpose I/O expander manufactured by STMicroelectronics (STM). Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Interface:** I²C (up to 400 kHz)  
- **Operating Voltage:** 1.65V to 3.6V  
- **Number of I/Os:** 16 (individually configurable as input or output)  
- **Interrupt Output:** Configurable interrupt pin for event detection  
- **Temperature Range:** -40°C to +85°C  
- **Package:** TSSOP-28  

### **Descriptions:**  
- The STMPE1601TBR is designed to expand the number of GPIOs available to microcontrollers via the I²C bus.  
- It features 16 I/O pins, each configurable with internal pull-up/pull-down resistors.  
- Includes an interrupt generation mechanism to alert the host controller of input changes.  

### **Features:**  
- **16 Configurable GPIOs:** Each pin can be set as input or output.  
- **Internal Pull-up/Pull-down Resistors:** Programmable for each I/O.  
- **Interrupt Capability:** Pin-change detection triggers an interrupt.  
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **I²C Address Selection:** Configurable via hardware pins for multiple devices on the same bus.  
- **Reset Function:** Hardware reset pin for initialization.  

This device is commonly used in applications requiring additional I/Os, such as industrial control, consumer electronics, and embedded systems.

Application Scenarios & Design Considerations

16-bit enhanced port expander with keypad and PWM controller Xpander Logic

Alternative Part Number

  • TCA9535RTWR --: 16-bit I2C I/O expander with interrupt output, functionally similar to the STMPE1601 and widely available in a comparable QFN package.
  • PCA9555PW --: 16-bit I2C/SMBus I/O port expander with interrupt, a common drop-in functional alternative for keypad/GPIO expansion applications.
  • MAX7311AUG+ --: 16-bit I2C port expander with interrupt and hot-insertion protection, suitable as an alternative when the STMPE1601 is unavailable.
  • TCA8418RTWR --: I2C keypad/GPIO expander with 18 GPIOs and interrupt support, functionally similar to the STMPE1601 and widely available.
  • PCA9535PW --: 16-bit I2C GPIO expander with interrupt output, a common drop-in style alternative for port expansion applications.

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