The PCA9538DWR is an 8-bit I/O expander designed for I¬=C and SMBus applications, offering a low-power solution with a maximum standby current of 1 OºA. It operates within a power supply range of 2.3 V to 5.5 V and supports both 100-kHz and 400-kHz clock frequencies. The device features an open-drain active-low interrupt output and an active-low reset input, allowing for efficient communication with microcontrollers. With two hardware address pins, A0 and A1, the PCA9538DWR can accommodate up to four devices on the same I¬=C bus. It includes configuration registers for input and output settings, as well as a polarity inversion register. The outputs are latched and capable of driving high-current loads, such as LEDs. The device also incorporates noise filtering on the SCL/SDA inputs and ensures no glitches occur on power-up, making it suitable for various applications requiring additional I/O capabilities. The PCA9538DWR is available in a 16-pin SOIC package and is rated for operation in temperatures ranging from -40¬8C to 85¬8C.
Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-SOIC -40 to 85
Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-SOIC -40 to 85 Product overview: PCA9538DWR from Texas Instruments is an Interface Transceiver IC for serial communication, bus conversion, signal driving, receiver stages, and industrial networking. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include Low-Power, 8-bit, SOIC. Search-friendly keywords include interface IC, transceiver, driver, receiver, CAN, RS-485, Low-Power, 8-bit, SOIC, Interface Transceiver IC. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 749-PCA9538DWR can be used for catalog matching and distributor lookup.
I/O Expander 8 I²C, SMBus 400kHz 16-SOIC
I/O Expander 8 I²C, SMBus 400kHz 16-SOIC
I/O Expander 8 I²C, SMBus 400kHz 16-SOIC
I/O Expander 8 I²C, SMBus 400 kHz 16-SOIC
| Texas Instruments | ERSAELECTRONICS PTE. LTD. | DigiKey | Quarktwin Technology Ltd. | |
|---|---|---|---|---|
| Product Category | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces |
| Product Number | PCA9538DWR | 749-PCA9538DWR | 296-21768-2-ND | PCA9538DWR |
| Product Name | PCA9538 Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers | Low-Power 8-bit SOIC Interface Transceiver IC | I/O Expanders | I/O Expanders |
| Technology | I2C | I2C; SMBus | I2C; SMBus; I²C, SMBus | |
| Device Type | Port / Bus Expander | Transceiver | Port / Bus Expander | Port / Bus Expander |
| Features | RoHS | RoHS | RoHS |
