I/O Expanders

Results: 3
Manufacturer
Microchip TechnologyNXP USA Inc.Texas Instruments
Packaging
Cut Tape (CT)Digi-Reel®Tape & Reel (TR)Tube
Number of I/O
816
Interface
I2CI2C, SMBus
Current - Output Source/Sink
1mA, 25mA10mA, 25mA25mA
Clock Frequency
100 kHz400 kHz1.7 MHz
Voltage - Supply
1.8V ~ 5.5V2.3V ~ 5.5V2.5V ~ 6V
Operating Temperature
-40°C ~ 125°C-40°C ~ 85°C
Package / Case
16-SOIC (0.295", 7.50mm Width)24-TSSOP (0.173", 4.40mm Width)28-SOIC (0.295", 7.50mm Width)
Supplier Device Package
16-SOIC24-TSSOP28-SOIC
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
28 SOIC
MCP23017-E/SO
IC XPNDR 1.7MHZ I2C 28SOIC
Microchip Technology
9,694
In Stock
1 : ¥13.30000
Tube
-
Tube
Active
Not Verified
16
I2C
Yes
POR
Push-Pull
25mA
1.7 MHz
1.8V ~ 5.5V
-40°C ~ 125°C
Surface Mount
28-SOIC (0.295", 7.50mm Width)
28-SOIC
16-SOIC
PCF8574DWR
IC XPNDR 100KHZ I2C 16SOIC
Texas Instruments
8,026
In Stock
1 : ¥15.27000
Cut Tape (CT)
2,000 : ¥6.98472
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
8
I2C
Yes
POR
Push-Pull
1mA, 25mA
100 kHz
2.5V ~ 6V
-40°C ~ 85°C
Surface Mount
16-SOIC (0.295", 7.50mm Width)
16-SOIC
24-TSSOP
PCA9555PW,118
IC XPND 400KHZ I2C SMBUS 24TSSOP
NXP USA Inc.
15,543
In Stock
1 : ¥18.96000
Cut Tape (CT)
2,500 : ¥8.67045
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-TSSOP (0.173", 4.40mm Width)
24-TSSOP
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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.