I/O Expanders

Results: 2

Filters

Stacked

Scrolling

Showing

of 2

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

PCAL6524HEAZ IC XPNDR 1MHZ I2C 32HUQFN NXP USA Inc.	83,036 In Stock	1 : ¥17.43000 Cut Tape (CT) 500 : ¥10.33430 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	24	I2C	Yes	POR	Open Drain, Push-Pull	-	1 MHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	32-UFQFN Exposed Pad	32-HUQFN (5x5)
SX1509QBIULTRT IC XPNDR 400KHZ I2C 28QFN Semtech Corporation	7,728 In Stock	1 : ¥30.52000 Cut Tape (CT) 3,000 : ¥15.30170 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.