PCA9557PWR is out of stock and can be placed on backorder.
Available Substitutes:

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Diodes Incorporated
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Unit Price: $1.14000
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Analog Devices Inc./Maxim Integrated
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I/O Expander 8 I2C, SMBus 400 kHz 16-TSSOP
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

PCA9557PWR

DigiKey Part Number
296-20978-2-ND - Tape & Reel (TR)
296-20978-1-ND - Cut Tape (CT)
296-20978-6-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
PCA9557PWR
Description
IC XPND 400KHZ I2C SMBUS 16TSSOP
Manufacturer Standard Lead Time
12 Weeks
Customer Reference
Detailed Description
I/O Expander 8 I2C, SMBus 400 kHz 16-TSSOP
Datasheet
 Datasheet
EDA/CAD Models
PCA9557PWR Models
Product Attributes
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Category
Output Type
Open Drain, Push-Pull
Manufacturer
Texas Instruments
Current - Output Source/Sink
10mA, 25mA
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Clock Frequency
400 kHz
Part Status
Active
Voltage - Supply
2.3V ~ 5.5V
DigiKey Programmable
Not Verified
Operating Temperature
-40°C ~ 85°C
Number of I/O
8
Mounting Type
Surface Mount
Interface
I2C, SMBus
Package / Case
16-TSSOP (0.173", 4.40mm Width)
Interrupt Output
No
Supplier Device Package
16-TSSOP
Features
POR
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (4)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
PI4IOE5V9557LEXDiodes Incorporated031-PI4IOE5V9557LEXTR-ND$1.14000Similar
MAX7310AUE+TAnalog Devices Inc./Maxim Integrated268MAX7310AUE+TTR-ND$6.52000Similar
MAX7310AUE+Analog Devices Inc./Maxim Integrated0MAX7310AUE+-ND$6.52000Similar
PCA9557PW,118NXP USA Inc.0568-1061-2-ND$1.54000Similar
In-Stock: 0
2,000 estimated in stock on 18-Feb-2027
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$1.50000$1.50
10$1.09400$10.94
25$0.99320$24.83
100$0.88180$88.18
250$0.82868$207.17
500$0.79666$398.33
1,000$0.77031$770.31
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,000$0.74862$1,497.24
4,000$0.73077$2,923.08
6,000$0.72183$4,330.98
10,000$0.71193$7,119.30
14,000$0.70613$9,885.82