PI4IOE5V6416 16-bit I²C I/O Expander

Diodes Incorporated PI4IOE5V6416 16-bit I2C-bus I/O Expander provides remote I/O expansion for most microcontroller families via the I2C-bus interface. This Diodes Incorporated expander offers a simple solution when additional I/Os are needed while keeping interconnections to a minimum, such as in battery-powered mobile applications for interfacing with sensors, buttons, keypads, and other Human Machine Interface (HMI) devices.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
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Number of I/Os
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Supply Voltage - Max
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Minimum Operating Temperature
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Diodes Incorporated Interface - I/O Expanders Interface IO Expander TSSOP-24 T&R 3K 1,636In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT TSSOP-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 1 MHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV


Diodes Incorporated Interface - I/O Expanders Interface IO Expander W-QFN5050-32 T&R 2.5K 5,805In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 240
: 2,500

SMD/SMT WQFN5050-32 I2C, Serial 24 I/O With Interrupt 1.65 V 5.5 V 1 MHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV

Diodes Incorporated Interface - I/O Expanders Interface IO Expander V-QFN4040-24 T&R 3.5K 2,082In Stock
3,500Expected 2026-07-03
MouseReel Available
Min.: 1
Mult.: 1
: 3,500

SMD/SMT TQFN-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
Diodes Incorporated Interface - I/O Expanders Interface IO Expandr
Datasheet
6,845In Stock
Min.: 1
Mult.: 1
Max.: 550
: 3,000

PIO4IO SMD/SMT TSSOP-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape 2 kV
Diodes Incorporated Interface - I/O Expanders Interface IO Expander
Datasheet
16,475In Stock
24,500Expected 2026-06-30
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1,270
: 3,500

PIO4IO SMD/SMT TQFN-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV