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TCAL6416 I²C-bus/SMBus I/O Expander

Texas Instruments TCAL6416 I²C-bus/SMBus I/O Expander allows a general-purpose parallel input/output (I/O) expansion solution for the two-line bidirectional I²C bus (or SMBus) protocol. The TCAL6416 features a 1.08V to 3.6V power supply voltage on the I²C bus side (VCCI) and a power supply voltage ranging from 1.08V to 3.6V on the P-port side (VCCP).

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Series	Mounting Style	Package / Case	Interface Type	Number of I/Os	Interrupt Output	Supply Voltage - Min	Supply Voltage - Max	Maximum Clock Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Packaging	ESD Protection
	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416DGSR Texas Instruments 1: $2.09 6,601In Stock New Product	Mfr. Part # TCAL6416DGSR Mouser Part # 595-TCAL6416DGSR New Product	Texas Instruments	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp Learn More about Texas Instruments ti tcal6416 expander	Datasheet	6,601In Stock	Cut Tape $2.09 $1.55 $1.41 $1.26 View Reel $1.07 $1.19 $1.15 $1.12 $1.07	Min.: 1 Mult.: 1 : 5,000			TCAL6416	SMD/SMT	VSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C	Reel, Cut Tape	With ESD Protection
	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416PWR Texas Instruments 1: $2.11 2,924In Stock	Mfr. Part # TCAL6416PWR Mouser Part # 595-TCAL6416PWR	Texas Instruments	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp Learn More about Texas Instruments ti tcal6416 expander	Datasheet	2,924In Stock	Cut Tape $2.11 $1.56 $1.43 $1.27 Reel $1.07 View $1.20 $1.16 $1.14 $1.03 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			TCAL6416	SMD/SMT	TSSOP-24	I2C, Serial, SMBus		With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416RDTOR Texas Instruments 1: $2.55 A tariff of 38% may be applied if shipping to the United States. 988In Stock 3,000Expected 12/3/2026	Mfr. Part # TCAL6416RDTOR Mouser Part # 595-TCAL6416RDTOR	Texas Instruments	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp Learn More about Texas Instruments ti tcal6416r i2c bus smbus io expander	Datasheet	988In Stock 3,000Expected 12/3/2026	$2.55 $1.90 $1.73 $1.55 View $1.44 $1.39 $1.36 $1.27 $1.24 A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1			TCAL6416R	SMD/SMT	X2QFN-24	I2C, Serial, SMBus		With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		4 kV
	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416RTWR Texas Instruments 1: $2.11 A tariff of 38% may be applied if shipping to the United States. 70In Stock 9,000On Order	Mfr. Part # TCAL6416RTWR Mouser Part # 595-TCAL6416RTWR	Texas Instruments	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp Learn More about Texas Instruments ti tcal6416 expander	Datasheet	70In Stock 9,000On Order On Order Ship Dates Mfr. #: TCAL6416RTWR Stock: 70 Can Ship Immediately On Order: 3,000 Expected 11/25/2026 6,000 Expected 5/6/2027 Factory Lead-Time: 26 Weeks	Cut Tape $2.11 $1.56 $1.43 $1.27 Reel $1.06 View $1.20 $1.16 $1.14 $1.03 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000			TCAL6416	SMD/SMT	WQFN-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	100 kHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV