PCAL9722 Ultra Low-Voltage 22-bit I/O Expanders

NXP Semiconductors PCAL9722 Ultra Low-Voltage 22-bit I/O Expanders offer remote I/O expansion for microcontroller families via the SPI interface. These expanders feature a built-in level shifting that makes devices highly flexible in mixed power supply systems where communication between incompatible I/O voltages is required. The PCAL9722 ultra low-voltage 22-bit I/O allows direct connection to a microcontroller operating down to 1.1V. Typical applications include IoT, industrial controllers, LED driving devices, building automation, telecom equipment, routers, servers, personal electronics, gaming consoles, and computers.

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NXP Semiconductors Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN32 package
Datasheet
35.980Expected 5/11/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 6.000

PCAL9722 SMD/SMT HVQFN-32 I2C, Serial With Interrupt 1.1 V 5.5 V 5 MHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV

NXP Semiconductors Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN32 package
Datasheet
23.779Expected 4/8/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 6.000

PCAL9722 SMD/SMT HVQFN-32 Serial, SPI With Interrupt 1.1 V 5.5 V 5 MHz - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel 2 kV