I/O Expanders

Results: 8
Packaging
Cut Tape (CT)Digi-Reel®Tape & Reel (TR)Tube
Interface
I2CSPI
Clock Frequency
1.7 MHz10 MHz
Mounting Type
Surface MountThrough Hole
Package / Case
28-DIP (0.300", 7.62mm)28-SOIC (0.295", 7.50mm Width)28-SSOP (0.209", 5.30mm Width)28-VQFN Exposed Pad
Supplier Device Package
28-QFN (6x6)28-SOIC28-SPDIP28-SSOP
Stocking Options
Environmental Options
Media
Marketplace Product
8Results
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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 SSOP
MCP23S17-E/SS
IC XPNDR 10MHZ SPI 28SSOP
Microchip Technology
8,606
In Stock
47 : ¥12.23255
Tube
-
Tube
Active
Not Verified
16
SPI
Yes
POR
Push-Pull
25mA
10 MHz
1.8V ~ 5.5V
-40°C ~ 125°C
Surface Mount
28-SSOP (0.209", 5.30mm Width)
28-SSOP
28 SOIC
MCP23017T-E/SO
IC XPNDR 1.7MHZ I2C 28SOIC
Microchip Technology
24,381
In Stock
1 : ¥13.77000
Cut Tape (CT)
1,600 : ¥10.54156
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-SOIC (0.295", 7.50mm Width)
28-SOIC
28 SOIC
MCP23017-E/SO
IC XPNDR 1.7MHZ I2C 28SOIC
Microchip Technology
8,182
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
28 VQFN
MCP23S17-E/ML
IC XPNDR 10MHZ SPI 28QFN
Microchip Technology
10,289
In Stock
61 : ¥14.36705
Tube
-
Tube
Active
Not Verified
16
SPI
Yes
POR
Push-Pull
25mA
10 MHz
1.8V ~ 5.5V
-40°C ~ 125°C
Surface Mount
28-VQFN Exposed Pad
28-QFN (6x6)
28 SOIC
MCP23S17-E/SO
IC XPNDR 10MHZ SPI 28SOIC
Microchip Technology
8,838
In Stock
1 : ¥14.37000
Tube
-
Tube
Active
Not Verified
16
SPI
Yes
POR
Push-Pull
25mA
10 MHz
1.8V ~ 5.5V
-40°C ~ 125°C
Surface Mount
28-SOIC (0.295", 7.50mm Width)
28-SOIC
28 SPDIP Top View
MCP23017-E/SP
IC XPNDR 1.7MHZ I2C 28SDIP
Microchip Technology
1,929
In Stock
1 : ¥13.87000
Tube
-
Tube
Active
Not Verified
16
I2C
Yes
POR
Push-Pull
25mA
1.7 MHz
1.8V ~ 5.5V
-40°C ~ 125°C
Through Hole
28-DIP (0.300", 7.62mm)
28-SPDIP
28 SPDIP Top View
MCP23S17-E/SP
IC XPNDR 10MHZ SPI 28SDIP
Microchip Technology
14,221
In Stock
1 : ¥15.13000
Tube
-
Tube
Active
Not Verified
16
SPI
Yes
POR
Push-Pull
25mA
10 MHz
1.8V ~ 5.5V
-40°C ~ 125°C
Through Hole
28-DIP (0.300", 7.62mm)
28-SPDIP
28 VQFN
MCP23017-E/ML
IC XPNDR 1.7MHZ I2C 28QFN
Microchip Technology
7,390
In Stock
1 : ¥16.15000
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-VQFN Exposed Pad
28-QFN (6x6)
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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.