IC Phoenix logo

Home ›  T  › T18 > TCA6424ARGJR

TCA6424ARGJR from TI,Texas Instruments

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

TCA6424ARGJR

Manufacturer: TI

Low-Voltage 24-Bit I2C and SMBus I/O Expander 32-UQFN -40 to 85

Partnumber Manufacturer Quantity Availability
TCA6424ARGJR TI 22 In Stock

Description and Introduction

Low-Voltage 24-Bit I2C and SMBus I/O Expander 32-UQFN -40 to 85 The TCA6424ARGJR is a 24-bit I²C and SMBus I/O expander manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Interface:** I²C, SMBus compatible  
- **Number of I/O Ports:** 24 (3 ports of 8 bits each)  
- **Supply Voltage Range:** 1.65V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **I²C Clock Frequency:** Up to 400 kHz  
- **Interrupt Output:** Configurable for any input change  
- **Low Standby Current:** < 1 µA (typical)  
- **Package:** 32-VQFN (5mm x 5mm)  

### **Descriptions:**
The TCA6424ARGJR is a low-voltage, bidirectional I/O expander designed for general-purpose I²C/SMBus applications. It provides 24 GPIO pins that can be individually configured as inputs or outputs. The device supports interrupt functionality, allowing the host controller to monitor input changes efficiently without continuous polling.

### **Features:**
- **24 Configurable GPIO Pins:** Each pin can be independently set as input or output.  
- **Wide Voltage Range:** Operates from 1.65V to 5.5V, making it compatible with various logic levels.  
- **Interrupt Output:** Pin-change detection triggers an interrupt to the host.  
- **Internal Power-On Reset:** Ensures proper initialization at power-up.  
- **Schmitt-Trigger Inputs:** Enhances noise immunity on input signals.  
- **Latched Outputs with High Current Drive:** Supports up to 25 mA sink capability per I/O.  
- **I²C Address Selection:** Three hardware-selectable address pins allow up to eight devices on the same bus.  

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

Application Scenarios & Design Considerations

Low-Voltage 24-Bit I2C and SMBus I/O Expander 32-UQFN -40 to 85

Alternative Part Number

  • PCA9535PW --: 16-bit I2C I/O expander with similar GPIO expansion function; widely available and pin-compatible in function, though it has fewer I/O pins than the 24-bit TCA6424A.
  • PCA9555PW --: 16-bit I2C/SMBus I/O expander offering interrupt output and configurable I/O, a common drop-in functional substitute for I2C GPIO expansion applications.
  • MAX7311AUG+ --: 16-bit I2C port expander with interrupt and reset, suitable alternative when full 24-bit expansion is not required and a different vendor is preferred.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips