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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 (TWD) 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: NT$74.93 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 NT$74.93 NT$55.57 NT$50.55 NT$45.17 View Reel NT$38.36 NT$42.66 NT$41.23 NT$40.15 NT$38.36	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: NT$75.64 2,929In 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	2,929In Stock	Cut Tape NT$75.64 NT$55.93 NT$51.27 NT$45.53 Reel NT$38.36 View NT$43.02 NT$41.59 NT$40.87 NT$36.93 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: NT$91.42 980In Stock 3,000Expected 11/23/2026	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	980In Stock 3,000Expected 11/23/2026	NT$91.42 NT$68.12 NT$62.02 NT$55.57 View NT$51.62 NT$49.83 NT$48.76 NT$45.53 NT$44.45	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: NT$75.64 363In Stock 3,000Expected 11/23/2026	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	363In Stock 3,000Expected 11/23/2026	Cut Tape NT$75.64 NT$55.93 NT$51.27 NT$45.53 Reel NT$38.00 View NT$43.02 NT$41.59 NT$40.87 NT$36.93 MouseReel Available	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