I/O Expanders

Results: 2
Manufacturer
Microchip TechnologySemtech Corporation
Packaging
Cut Tape (CT)Digi-Reel®Tape & Reel (TR)
Number of I/O
816
Features
Keypad Controller, LED Output, PORPOR
Output Type
Open Drain, Push-PullPush-Pull
Current - Output Source/Sink
8mA, 15mA25mA
Clock Frequency
400 kHz1.7 MHz
Voltage - Supply
1.425V ~ 3.6V1.8V ~ 5.5V
Operating Temperature
-40°C ~ 125°C-40°C ~ 85°C
Package / Case
20-SSOP (0.209", 5.30mm Width)28-UFQFN Exposed Pad
Supplier Device Package
20-SSOP28-QFN-UT (4x4)
Stocking Options
Environmental Options
Media
Marketplace Product
2Results
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of 2
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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
20 TSSOP
MCP23008T-E/SS
IC XPNDR 1.7MHZ I2C 20SSOP
Microchip Technology
9,039
In Stock
1 : ¥12.23000
Cut Tape (CT)
1,600 : ¥9.27656
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
8
I2C
Yes
POR
Push-Pull
25mA
1.7 MHz
1.8V ~ 5.5V
-40°C ~ 125°C
Surface Mount
20-SSOP (0.209", 5.30mm Width)
20-SSOP
SX1509QBIULTRT
SX1509BIULTRT
IC XPNDR 400KHZ I2C 28QFN
Semtech Corporation
79,371
In Stock
1 : ¥29.47000
Cut Tape (CT)
3,000 : ¥14.77702
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
16
I2C
Yes
Keypad Controller, LED Output, POR
Open Drain, Push-Pull
8mA, 15mA
400 kHz
1.425V ~ 3.6V
-40°C ~ 85°C
Surface Mount
28-UFQFN Exposed Pad
28-QFN-UT (4x4)
Showing
of 2

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.