The PCA9557RGVR is an 8-bit I2C and SMBus low-power I/O expander designed for operation within a voltage range of 2.3V to 5.5V. It features a low standby current consumption of 1OºA maximum and supports a 400kHz fast I2C bus. The device includes three hardware address pins, allowing up to eight PCA9557 devices to be connected on the same I2C/SMBus. This expander provides input and output configuration registers, a polarity inversion register, and an active-low reset input. It is designed to power up with all channels configured as inputs, ensuring no glitches on power-up. The outputs are latched and capable of driving high current loads, such as LEDs. The PCA9557RGVR also includes ESD protection exceeding JESD 22 standards, making it suitable for various applications including telecom shelters, servers, routers, and industrial automation. The device is available in a 16-pin VQFN package and operates within a temperature range of -40¬8C to 85¬8C.
Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-VQFN -40 to 85
IC I/O EXPANDER I2C 8B 16QFN
I/O Expander 8 I²C, SMBus 400kHz 16-VQFN (4x4)
I/O Expander 8 I²C, SMBus 400kHz 16-VQFN (4x4)
I/O Expander 8 I²C, SMBus 400kHz 16-VQFN (4x4)
Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-VQFN -40 to 85 Product overview: PCA9557RGVR 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, VQFN. Search-friendly keywords include interface IC, transceiver, driver, receiver, CAN, RS-485, Low-Power, 8-bit, VQFN, Interface Transceiver IC. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 749-PCA9557RGVR can be used for catalog matching and distributor lookup.
Manufacturer: Texas Instruments
Win Source Part Number: 1236084-PCA9557RGVR
Packaging: Reel - TR
Operating Temperature Range: -40°C ~ 85°C
Features: POR
Package: 16-VQFN Exposed Pad
Mounting: SMD
Output Type: Open Drain, Push-Pull
Operating Supply Voltage: 2.3 V ~ 5.5 V
Interface: I2C, SMBus
Number of I/O: 8
Current - Output Source/Sink: 10mA, 25mA
Interrupt Output: No
Family Name: PCA9557
Categories: Integrated Circuits (ICs)
Manufacturer Homepage: www.ti.com
RoHS State: Request Verification
Clock Frequency: 400kHz
Manufacturer Package: 16-VQFN (4x4)
Alternative Parts (Cross-Reference): CAT9557HV4I-GT2; PCA9557BS; PCA9557BS,118;
Introduction Date: September 01, 2006
ECCN: EAR99
Country of Origin: Malaysia
Estimated EOL Date: 2028
Halogen Free: Compliant
Popularity: Medium
Fake Threat In the Open Market: 64 pct.
Supply and Demand Status: Balance
Interface - I/O Expanders Remote 8-Bit I2C and SMBus LP I/O Exp
I/O Expander 8 I²C, SMBus 400 kHz 16-VQFN (4x4)
| Texas Instruments | ODG (Origin Data Global) | DigiKey | ERSAELECTRONICS PTE. LTD. | Win Source Electronics | VAST STOCK CO., LIMITED | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces | IC Interfaces |
| Product Number | PCA9557RGVR | PCA9557RGVR | 296-21785-1-ND | 749-PCA9557RGVR | 1236084-PCA9557RGVR | PCA9557RGVR | PCA9557RGVR |
| Product Name | PCA9557 Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers | I/O Expanders | I/O Expanders | Low-Power 8-bit VQFN Interface Transceiver IC | Interface - Interface - I/O Expanders - PCA9557RGVR | Interface - I/O Expanders | I/O Expanders |
| Technology | I2C | I2C; SMBus; I²C, SMBus | I2C; SMBus | I2C; SMBus; I²C, SMBus | |||
| Device Type | Port / Bus Expander | Port / Bus Expander | Transceiver | Sensor Interface | Port / Bus Expander | ||
| Features | RoHS | RoHS | RoHS | RoHS | |||
| Supply Voltage | 2.5V; Other; 6 | Other; 2.3V ~ 5.5V | Other; 2.3V ~ 5.5V | Other; 2.3 V ~ 5.5 V | Other; 2.3V ~ 5.5V |
