I/O Expanders

Results: 3
Manufacturer
Microchip TechnologyTexas Instruments
Packaging
Cut Tape (CT)Digi-Reel®Tape & Reel (TR)
Interface
I2CI2C, SMBus
Current - Output Source/Sink
10mA, 25mA25mA
Clock Frequency
400 kHz1.7 MHz
Voltage - Supply
1.65V ~ 5.5V1.8V ~ 5.5V2.3V ~ 5.5V
Operating Temperature
-40°C ~ 125°C-40°C ~ 85°C
Package / Case
24-SSOP (0.209", 5.30mm Width)24-TSSOP (0.173", 4.40mm Width)28-SSOP (0.209", 5.30mm Width)
Supplier Device Package
24-SSOP24-TSSOP28-SSOP
Stocking Options
Environmental Options
Media
Marketplace Product
3Results
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of 3
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Mfr Part #
Quantity Available
Price
Series
Package
Product Status
DigiKey Programmable
Number of I/O
Interface
Interrupt Output
Features
Output Type
Current - Output Source/Sink
Clock Frequency
Voltage - Supply
Operating Temperature
Mounting Type
Package / Case
Supplier Device Package
24-TSSOP
TCA9555PWR
IC XPND 400KHZ I2C SMBUS 24TSSOP
Texas Instruments
20,283
In Stock
1 : ¥11.17000
Cut Tape (CT)
2,000 : ¥4.73632
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
16
I2C, SMBus
Yes
POR
Push-Pull
10mA, 25mA
400 kHz
1.65V ~ 5.5V
-40°C ~ 85°C
Surface Mount
24-TSSOP (0.173", 4.40mm Width)
24-TSSOP
28 SSOP
MCP23017T-E/SS
IC XPNDR 1.7MHZ I2C 28SSOP
Microchip Technology
14,487
In Stock
1 : ¥13.87000
Cut Tape (CT)
2,100 : ¥10.50859
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
16
I2C
Yes
POR
Push-Pull
25mA
1.7 MHz
1.8V ~ 5.5V
-40°C ~ 125°C
Surface Mount
28-SSOP (0.209", 5.30mm Width)
28-SSOP
24-SSOP
PCA9555DBR
IC XPNDR 400KHZ I2C SMBUS 24SSOP
Texas Instruments
3,261
In Stock
1 : ¥16.50000
Cut Tape (CT)
2,000 : ¥7.55598
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
16
I2C, SMBus
Yes
POR
Push-Pull
10mA, 25mA
400 kHz
2.3V ~ 5.5V
-40°C ~ 85°C
Surface Mount
24-SSOP (0.209", 5.30mm Width)
24-SSOP
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of 3

I/O Expanders

Devices in this family are used in conjunction with microcontrollers, microprocessors, or similar devices for the purpose of increasing the number of signal connections available for connecting peripheral devices. The typical concept of operation involves the use of serial communications requiring only a few I/O lines on the host device to read/write the status of many input/output pins on the expander device. The technique exchanges speed of communication for increased connectivity, and is best suited for applications where fast response is not critical, such as in many human interface applications.