The PCA9535PWG4 is a 16-bit I/O expander designed for I¬=C and SMBus interfaces, operating within a voltage range of 2.3 V to 5.5 V. It features low standby current consumption of 1 OºA maximum and supports a 400-kHz fast I¬=C bus. The device allows for the connection of up to eight PCA9535 devices on the same bus through three hardware address pins (A0, A1, A2). The PCA9535 includes two 8-bit configuration registers for input or output selection, as well as input and output port registers. It also has a polarity inversion register to manage active-high or active-low operations. The open-drain interrupt output signals changes in input states, enabling efficient communication with a microcontroller without continuous I¬=C bus activity. The device is capable of driving LEDs directly due to its high-current output capability and is compatible with most microcontroller families. It also offers robust ESD protection and latch-up performance, making it suitable for various applications requiring reliable I/O expansion.
Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-TSSOP -40 to 85
I/O Expander 16 I²C, SMBus 400kHz 24-TSSOP
Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-TSSOP -40 to 85 Product overview: PCA9535PWG4 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, 16-bit, TSSOP. Search-friendly keywords include interface IC, transceiver, driver, receiver, CAN, RS-485, Low-Power, 16-bit, TSSOP, Interface Transceiver IC. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 749-PCA9535PWG4 can be used for catalog matching and distributor lookup.
I/O Expander 16 I²C, SMBus 400 kHz 24-TSSOP
IC XPND 400KHZ I2C SMBUS 24TSSOP
| Texas Instruments | DigiKey | ERSAELECTRONICS PTE. LTD. | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|
| Product Category | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces |
| Product Number | PCA9535PWG4 | PCA9535PWG4-ND | 749-PCA9535PWG4 | PCA9535PWG4 | PCA9535PWG4 |
| Product Name | PCA9535 Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers | I/O Expanders | Low-Power 16-bit TSSOP Interface Transceiver IC | I/O Expanders | Integrated Circuits (ICs) - Interface - I-O Expanders |
| Technology | I2C | I2C; SMBus | I2C; SMBus; I²C, SMBus | ||
| Device Type | Port / Bus Expander | Port / Bus Expander | Transceiver | Port / Bus Expander | Port / Bus Expander; Sensor Interface |
| Features | RoHS | RoHS | RoHS |
