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Updated at 03/12/2025 10:30:15(UTC+8)

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Description

The TCA6424ARGJR is a low-voltage 24-bit I²C and SMBus I/O Expander designed to provide general-purpose remote I/O expansion for most microcontroller families via the I²C interface (serial clock (SCL) and serial data (SDA)). The major benefit of this device is its wide VCC range. It can operate on the P-port side and on the SDA/SCL side. This allows the TCA6424A to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components, such as LEDs, remain at a 5V power supply.
I²C to parallel port expander
Allows bidirectional voltage-level translation and GPIO expansion
Low standby current consumption
Active-low reset input
Open-drain active-low interrupt output
Input/output configuration register
Polarity inversion register
Internal power-on reset
Green product and no Sb/Br
This IC can be damaged by ESD. We recommend that all ICs be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

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TCA6424ARGJR Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	32 Pin
Case/Package	UQFN-32
Frequency	400 KHz
Supply Voltage (DC)	1.65V ~ 5.50V
Number of Outputs	24 Output
Output Current	25 mA
Number of Positions	32 Position
Clock Speed	400 kHz
Voltage Nodes	1.80 V, 2.70 V, 3.30 V, 3.60 V, 5.00 V
Number of Inputs and Outputs	24 Input IO
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	1.65V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	1.65 V
Input Voltage	5.5 V
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Size-Length	5.15 mm
Size-Width	5.15 mm
Size-Height	0.6 mm
Weight	0.0009598015184 kg
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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