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TCA9535 Low-Power I/O Expander

Texas Instruments TCA9535 Low-Power I/O Expander is a 24-pin device that provides 16 bits of general-purpose parallel input and output (I/O) expansion for the two-line bidirectional I²C bus or SMBus protocol. The device can operate with a power supply voltage ranging from 1.65V to 5.5V. The Texas Instruments TCA9535 consists of two 8-bit configurations (input or output selection), input port, output port, and polarity inversion (active-high or active-low operation) registers. When the power is turned on, the I/Os are configured as inputs. The system master can enable the I/Os as inputs or outputs by writing to the I/O configuration bits.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SEK) 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 Remote 16bit I2C LP I/O Expander A 595-T A 595-TCA9535DBT TCA9535DBR Texas Instruments 1: 19,69 kr 2 006In Stock	Mfr. Part No. TCA9535DBR Mouser Part No 595-TCA9535DBR	Texas Instruments	Interface - I/O Expanders Remote 16bit I2C LP I/O Expander A 595-T A 595-TCA9535DBT Learn More about Texas Instruments ti tca9535 expander	Datasheet	2 006In Stock	Cut Tape 19,69 kr 14,63 kr 13,39 kr 11,93 kr Reel 10,06 kr View 11,23 kr 10,83 kr 10,54 kr 9,68 kr MouseReel Available	Min.: 1 Mult.: 1 : 2 000			TCA9535	SMD/SMT	SSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	5.5 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp A 595-TCA9535DBR TCA9535DBT Texas Instruments 1: 25,31 kr 429In Stock	Mfr. Part No. TCA9535DBT Mouser Part No 595-TCA9535DBT	Texas Instruments	Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp A 595-TCA9535DBR Learn More about Texas Instruments ti tca9535 expander	Datasheet	429In Stock	Cut Tape 25,31 kr 18,90 kr 17,21 kr 15,53 kr Reel 14,51 kr View 13,73 kr 13,16 kr 12,94 kr 12,83 kr MouseReel Available	Min.: 1 Mult.: 1 : 250			TCA9535	SMD/SMT	SSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders Remt 16Bit I2C SMBus Lo-Pwr I/O Expndr TCA9535PWR Texas Instruments 1: 18,90 kr 151In Stock 32 000On Order	Mfr. Part No. TCA9535PWR Mouser Part No 595-TCA9535PWR	Texas Instruments	Interface - I/O Expanders Remt 16Bit I2C SMBus Lo-Pwr I/O Expndr Learn More about Texas Instruments ti tca9535 expander	Datasheet	151In Stock 32 000On Order On Order Ship Dates Mfr. No: TCA9535PWR Stock: 151 Can Dispatch Immediately On Order: 6 000 Expected 2026-11-13 12 000 Expected 2026-11-23 14 000 Expected 2027-03-29 Factory Lead Time: 26 Weeks	Cut Tape 18,90 kr 13,84 kr 12,60 kr 11,23 kr Reel 9,51 kr View 10,54 kr 10,16 kr 9,29 kr MouseReel Available	Min.: 1 Mult.: 1 : 2 000			TCA9535	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders Remote 16bit I2C and SMBux TCA9535RGER Texas Instruments 1: 19,13 kr 56 080On Order	Mfr. Part No. TCA9535RGER Mouser Part No 595-TCA9535RGER	Texas Instruments	Interface - I/O Expanders Remote 16bit I2C and SMBux Learn More about Texas Instruments ti tca9535 expander	Datasheet	56 080On Order On Order Ship Dates Mfr. No: TCA9535RGER Stock: 0 On Order: 26 080 Expected 2026-12-24 3 000 Expected 2026-12-31 27 000 Expected 2027-01-07 Factory Lead Time: 26 Weeks	Cut Tape 19,13 kr 14,18 kr 12,83 kr 11,48 kr Reel 9,36 kr View 10,64 kr 10,26 kr 9,18 kr MouseReel Available	Min.: 1 Mult.: 1 : 3 000			TCA9535	SMD/SMT	VQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander TCA9535RTWR Texas Instruments 1: 16,54 kr 74 039On Order	Mfr. Part No. TCA9535RTWR Mouser Part No 595-TCA9535RTWR	Texas Instruments	Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander Learn More about Texas Instruments ti tca9535 expander	Datasheet	74 039On Order On Order Ship Dates Mfr. No: TCA9535RTWR Stock: 0 On Order: 29 039 Expected 2026-12-17 45 000 Expected 2027-02-04 Factory Lead Time: 26 Weeks	Cut Tape 16,54 kr 12,15 kr 11,03 kr 9,78 kr Reel 8,04 kr View 8,99 kr 8,65 kr 8,60 kr 8,01 kr MouseReel Available	Min.: 1 Mult.: 1 : 3 000			TCA9535	SMD/SMT	WQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp TCA9535MRGER Texas Instruments 1: 19,69 kr 5 935Expected 2026-11-23	Mfr. Part No. TCA9535MRGER Mouser Part No 595-TCA9535MRGER	Texas Instruments	Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp Learn More about Texas Instruments ti tca9535 expander	Datasheet	5 935Expected 2026-11-23	Cut Tape 19,69 kr 14,63 kr 13,39 kr 11,93 kr Reel 9,87 kr View 11,23 kr 10,83 kr 10,54 kr 9,64 kr MouseReel Available	Min.: 1 Mult.: 1 : 3 000			TCA9535	SMD/SMT	VQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV