EN
  • EN
  • DE
loading
Mfr. Part No. Qty. Price

No items in the cart

View Cart
Same model may have multiple batches, images only for reference.
PCA9557PWR Real Image
Same model may have multiple batches, images only for reference.

PCA9557PWR

Part No PCA9557PWR
Manufacturer Texas Instruments
Catalog Interface - I/O Expanders
Description I2C/SMBus Interface 100kHz/400kHz 5.5V 16-Pin TSSOP T/R / IC I/O EXPANDER I2C 8B 16TSSOP
Datasheet
PCA9557PWR Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Integrated Circuits
Manufacturer Texas Instruments
Packaging Reel - TR
Status Active
Number of I/O 8
Interrupt Output No
Features POR
Output Type Open Drain, Push-Pull
Current - Output Source/Sink 10mA, 25mA
Max Frequency 400kHz
Supply Voltage - Operating 2.3 V to 5.5 V
Temperature Range - Operating -40°C to 85°C
Mounting SMD (SMT)
Case / Package 16-TSSOP
Win Source Part Number 026489-PCA9557PWR
Is this a common-used part? Yes
Popularity High
Supply and Demand Status Limited
Family Name PCA9557PWR
Introduction Date August 01, 2003
ECCN EAR99
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2031
Ultra Librarian 3D Model Ultra Librarian PCA9557PWR CAD Model

Description

The PCA9557PWR is a top-tier product from Texas Instruments, a renowned global semiconductor design and manufacturing company.

  • Description: 8-bit I²C and SMBus I/O expander optimized for dimming LEDs.
  • Features: Internal oscillator, software programmable blink rates and duty cycles.
  • Reset Input: Active LOW.
  • Interrupt Output: Active HIGH.
  • Standby Current: Low.
  • Voltage: 2.3 to 5.5 V supply.
  • Package: TSSOP.
  • Operating Temperature: -40 to 85 °C.
  • Interfaces: I²C and SMBus.
  • Hot Insertion: Supported.

You May Also Be Interested in

Picture of PCA9673BS,118
PCA9673BS,118
NXP / Nexperia
IC XPNDR 1MHZ I2C 24HVQFN
Need more? Email Us
MCP23018T-E/SS Real Image
MCP23018T-E/SS
Microchip Technology
IC I/O EXPANDER I2C 16B 24SSOP
Lowest to $4.8325
PCA9675PW/S911,118 NXP
PCA9675PW/S911,118
NXP / Nexperia
IC I/O EXPANDER I2C 16B 24TSSOP
Lowest to $0.8905
PCA9539BSHP Real Image
PCA9539BSHP
NXP / Nexperia
IC I2C BUS/SMBUS 16BIT 24HVQFN / I/O Expander 16 I²C 400 kHz 24-HVQFN (4x4)
Need more? Email Us
MAX7318AUG+T Real Image
MAX7318AUG+T
Maxim Integrated
IC I/O EXPANDER I2C 16B 24TSSOP
Lowest to $3.4610
PCA9654EDR2G ON Semiconductor
PCA9654EDR2G
ON Semiconductor
IC XPNDR 100KHZ I2C 16SOIC / I/O Expander 8 I²C 100 kHz 16-SOIC
Lowest to $3.2901
PCAL6408AEX1Z NXP
PCAL6408AEX1Z
NXP / Nexperia
IC XPND 400KHZ I2C SMBUS 16X2QFN / I/O Expander 8 I²C, SMBus 400 kHz 16-X2QFN (1.6x1.6)
Lowest to $1.6212
PCA9539BS,118 NXP
PCA9539BS,118
NXP / Nexperia
IC I/O EXPANDER I2C 16B 24HVQFN / I/O Expander 16 I²C, SMBus 400 kHz 24-HVQFN (4x4)
Lowest to $1.9928
PCA9574PW,118 NXP
PCA9574PW,118
NXP / Nexperia
IC I/O EXPANDER I2C 8B 16TSSOP / I/O Expander 8 I²C, SMBus 400 kHz 16-TSSOP
Lowest to $1.0946

Top Sellers

BMM150 label picture
BMM150
Bosch Sensortec
SENSOR FLIPCORE/HALL SPI 12WLCSP / Geomagnetic Sensor
Lowest to $0.7841
BMI088 real image23913
BMI088
Bosch Sensortec
ACCELEROMETER 16LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $9.5038
CY7C68013A-128AXC Real Image
CY7C68013A-128AXC
Cypress Semiconductor Corp
IC MCU USB PERIPH HI SPD 128LQFP
Lowest to $18.8657
FT232RL-REEL Real Image
FT232RL-REEL
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $5.9399
SSD1963QL9 real image6483
SSD1963QL9
Solomon
LCD Display Controller 128-Pin LQFP Tray
Lowest to $4.1579
NTA4153NT1G real image4110
NTA4153NT1G
ON Semiconductor
MOSFET N-CH 20V 915MA SOT-416
Lowest to $0.0543
FT230XS-R real image4301
FT230XS-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.6527
AR8033-AL1A real image2016
AR8033-AL1A
Atheros
Ethernet TXRX Single Chip 1-Port 3.3V 10Mbps/100Mbps/1000Mbps 48-Pin QFN EP Tray
Lowest to $2.6071
BM04B-GHS-TBT(LF)(SN)(N) label picture
BM04B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER GH TOP 4POS 1.25MM
Lowest to $0.2376
74HC595D,118 label picture
74HC595D,118
Nexperia USA Inc.
Counter Shift Registers 8-bit serial-in, serial or parallel-out shift register with output latches; 3 - state
Lowest to $0.0951
ULN2803ADWR real image9675
ULN2803ADWR
Texas Instruments
TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $4.7519
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0713
RTL8211FI-CG real image16071
RTL8211FI-CG
Realtek
INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER
Lowest to $2.4354
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.0677
BM06B-GHS-TBT(LF)(SN)(N) Real Image2
BM06B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER SMD 6POS 1.25MM
Lowest to $0.4985

Pricing & Ordering

Quantity Unit Price Ext. Price
50+ $1.0976 $54.8800
115+ $0.9006 $103.5690
175+ $0.8724 $152.6700
240+ $0.8443 $202.6320
310+ $0.8161 $252.9910
415+ $0.7317 $303.6555
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
Estimate Shipping
Enter your destination to get a shipping estimate
*
Availability: 10,850 pieces
MOQ: 50 pcs
Order Increment : 1 pcs
*Need More Quantity? *Request a Bulk Quantity Quotation?
Ordering Guidelines

Shipping Information

Shipped from HK warehouse
Expected Shipping Date
Ship today if order in (HKT)
Supplier Lead-Time Call for availability
Estimate shipping fee
Enter your destination to get a shipping estimate
Estimate Shipping Fee

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
About Us
Customer Service
Solutions
Copyright © 2026 WIN SOURCE. All rights reserved.
For detailed contact information and office addresses in our key locations, including Irvine, Munich, Toronto, Singapore, Seoul, Bangalore, Bologna, Yamanashi, Hong Kong, and Mainland China, please visit our website.
Trust Guard Security Scanned
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess