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PCAL9722HNMP is a 22-bit general purpose I/O expander that provides remote I/O expansion for most microcontroller families via the SPI interface. The ultra low-voltage interface allows for direct connection to a microcontroller operating down to 1.1 V.

Product Attributes

Number of I/O 22  

Interface SPI  

Interrupt Output Yes  

Features POR  

Output Type Open Drain, Push-Pull  

Current - Output Source/Sink 10mA, 25mA  

Clock Frequency 5 MHz  

Voltage - Supply 1.1V ~ 5.5V, 1.65V ~ 5.5V  

Operating Temperature -40°C ~ 85°C  

Mounting Type Surface Mount  

Package / Case 32-VFQFN Exposed Pad  

Supplier Device Package 32-HVQFN (5x5)

Product Features

SPI bus to parallel port expander

5 MHz SPI bus

Operating power supply voltage range of 1.1 V to 5.5 V on the SPI bus side

Low standby current consumption: 2.0 μA typical at 3.3 V VDD

5.5 V tolerant I/O ports and SPI bus pins

Active LOW reset input (RESET)

Open-drain active LOW interrupt output (INT)

Internal power-on reset

Noise filter on SPI inputs

Latched outputs with 25 mA drive maximum capability for directly driving LEDs

Latch-up performance exceeds 100 mA per JESD 78, Class II

Package offered: HVQFN32

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

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  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

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• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.