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.
PCA9557DT Real Image
Same model may have multiple batches, images only for reference.

PCA9557DT

Part No PCA9557DT
Manufacturer Texas Instruments
Catalog Interface - I/O Expanders
Description I2C/SMBus Interface 400kHz 5.5V 16-Pin SOIC T/R / IC I/O EXPANDER I2C 8B 16SOIC
Datasheet
PCA9557DT 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-SOIC
Win Source Part Number 129599-PCA9557DT
Is this a common-used part? Yes
Popularity High
Supply and Demand Status Limited
Family Name PCA9557
Introduction Date August 01, 2003
ECCN EAR99
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2031
Ultra Librarian 3D Model Ultra Librarian PCA9557DT CAD Model

Description

The PCA9557DT is a high-quality product from Texas Instruments, a renowned global semiconductor design and manufacturing company.

  • Description: 8-bit I²C and SMBus, low power Input/Output (I/O) expander.
  • Voltage Range: 2.3V to 5.5V.
  • I/O Pins: Eight programmable I/O pins.
  • Reset Function: Built-in reset function.
  • Power-On Reset: Internal power-on reset.
  • Package: Surface-mount SOIC.
  • Compliance: RoHS compliant.
  • Clock Frequency: Up to 400 kHz.
  • Operating Temperature: -40°C to +85°C.

You May Also Be Interested in

NLVPCA9535EMTTXG ON Semiconductor
NLVPCA9535EMTTXG
ON Semiconductor
IC XPNDR 100KHZ I2C 24WQFN / I/O Expander 8 I²C 100 kHz 24-WQFN (4x4)
Lowest to $4.3014
PCAL6416AEX1Z Real Image
PCAL6416AEX1Z
NXP / Nexperia
LOW-VOLTAGE TRANSLATING 16-BIT I / I/O Expander 16 I²C, SMBus 400 kHz 24-X2QFN (2x2)
Lowest to $1.4921
MCP23017-E/SSVAO Microchip Technology
MCP23017-E/SSVAO
Microchip Technology
IC XPNDR 10MHZ I2C 28SSOP / I/O Expander 16 I²C 10 MHz 28-SSOP
Lowest to $1.0839
NCA9555 NOVOSENSE – Price, Stock & Datasheet
NCA9555
NOVOSENSE
16-BIT I2C-BUS I/O PORT
Lowest to $0.8413
MCP23S18-E/SP Real Image
MCP23S18-E/SP
Microchip Technology
IC EXPANDER SPI 16BIT I/O 28SDIP / I/O Expander 16 SPI 10 MHz 28-SPDIP
Lowest to $3.6759
MAX7318AUG+T Real Image
MAX7318AUG+T
Maxim Integrated
IC I/O EXPANDER I2C 16B 24TSSOP
Lowest to $3.4610
Picture of PCA9673BS,118
PCA9673BS,118
NXP / Nexperia
IC XPNDR 1MHZ I2C 24HVQFN
Need more? Email Us
PCA9554CBSHP Real Image
PCA9554CBSHP
NXP / Nexperia
IC I/O EXPANDER I2C 16HVQFN / I/O Expander 8 I²C, SMBus 400 kHz 16-HVQFN (3x3)
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

Top Sellers

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
EPM3128ATC100-10N real image
EPM3128ATC100-10N
Altera
IC CPLD 128MC 10NS 100TQFP
Lowest to $3.3015
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0713
SSD1963QL9 real image6483
SSD1963QL9
Solomon
LCD Display Controller 128-Pin LQFP Tray
Lowest to $4.1579
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
BMI160 real image
BMI160
Bosch Sensortec
IMU ACCEL/GYRO I2C/SPI 14LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $3.8016
ICM-42605 real image24295
ICM-42605
TDK InvenSense
IMU ACCEL/GYRO/TEMP I2C/SPI LGA
Lowest to $9.9790
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
EC2-5NU real image3736
EC2-5NU
Kemet
RELAY GEN PURPOSE DPDT 2A 5V
Lowest to $0.9677
RTL8211FI-CG real image16071
RTL8211FI-CG
Realtek
INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER
Lowest to $2.4354
FT4232HL real image4446
FT4232HL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.0677
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.0677
FT230XQ-R real image21397
FT230XQ-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16QFN
Lowest to $6.6527
ICM-42688-P Real Image2
ICM-42688-P
TDK InvenSense
MOTION SENSOR / Accelerometer, Gyroscope, 6 Axis Sensor Output
Lowest to $17.3800
FT232RL-REEL Real Image
FT232RL-REEL
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $5.9399

Pricing & Ordering

Quantity Unit Price Ext. Price
65+ $0.7811 $50.7715
160+ $0.6410 $102.5600
245+ $0.6209 $152.1205
335+ $0.6009 $201.3015
435+ $0.5809 $252.6915
580+ $0.5208 $302.0640
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
Estimate Shipping
Enter your destination to get a shipping estimate
*
Availability: 21,000 pieces
MOQ: 65 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