Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85
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
Manufacturer: Texas Instruments
Win Source Part Number: 026488-PCA9557DR
Packaging: Reel - TR
Features: POR
Mounting: SMD (SMT)
Output Type: Open Drain, Push-Pull
Number of I/O: 8
Current - Output Source/Sink: 10mA, 25mA
Interrupt Output: No
Family Name: PCA9557
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C
Case / Package: 16-SOIC
Supply Voltage - Operating: 2.3 V to 5.5 V
Max Frequency: 400kHz
Alternative Parts (Cross-Reference): CAT9557WI-GT2; PCA9557D,112; PCA9557D/DG; PCA9557D;
Introduction Date: August 01, 2003
ECCN: EAR99
Country of Origin: Malaysia
Estimated EOL Date: 2031
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 72 pct.
Supply and Demand Status: Limited
Application Field: Used in LED Lighting, Consumer Electronics, Portable Devices, Power Management
8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers 16-SOIC -40 to 85 Product overview: PCA9557DR 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 8-bit, SOIC. Search-friendly keywords include interface IC, transceiver, driver, receiver, CAN, RS-485, 8-bit, SOIC, Interface Transceiver IC, I/O Expanders. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 749-PCA9557DR can be used for catalog matching and distributor lookup.
IC I/O EXPANDER I2C 8B 16SOIC
400kHz SOIC-16 I/O Expanders ROHS
Interface - I/O Expanders Remote 8B I2C & SMBus Lo-Pwr I/O Exp
I/O Expander 8 I²C, SMBus 400 kHz 16-SOIC
| Texas Instruments | DigiKey | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | ODG (Origin Data Global) | LCSC Electronics Technology (HK) Limited | VAST STOCK CO., LIMITED | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|---|---|
| Product Category | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces |
| Product Number | PCA9557DR | 296-20977-2-ND | 026488-PCA9557DR | 749-PCA9557DR | PCA9557DR | PCA9557DR | PCA9557DR | PCA9557DR |
| Product Name | PCA9557 Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers | I/O Expanders | Interface - Interface - I/O Expanders - PCA9557DR | 8-bit SOIC Interface Transceiver IC | I/O Expanders | Communication Interface Chip/UART/485/232 >> I/O Expanders | Interface - I/O Expanders | I/O Expanders |
| Technology | I2C | I2C; SMBus | I2C; SMBus; I²C, SMBus | I2C | I2C; SMBus; I²C, SMBus | |||
| Device Type | Port / Bus Expander | Port / Bus Expander | Transceiver | UART | Port / Bus Expander | |||
| Features | RoHS | RoHS | RoHS | RoHS | RoHS |
