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Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	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	Qualification	Packaging	ESD Protection
Interface - I/O Expanders Automotive 16-bit 1. 65 to 3.6V I2C/SMBu TCA9539AQPWRQ1 Texas Instruments 1: $2.780 16.159On Order New Product	Mfr. Part # TCA9539AQPWRQ1 Mouser Part # 595-TCA9539AQPWRQ1 New Product	Texas Instruments	Interface - I/O Expanders Automotive 16-bit 1. 65 to 3.6V I2C/SMBu Learn More about Texas Instruments ti tca9539x q1 i2c smbus io expander	Datasheet	16.159On Order On Order Ship Dates Mfr. #: TCA9539AQPWRQ1 Stock: 0 On Order: 4.159 Expected 1/7/2027 3.000 Expected 2/4/2027 9.000 Expected 2/25/2027 Factory Lead-Time: 20 Weeks	Cut Tape $2.780 $2.062 $1.891 $1.686 View Reel $1.424 $1.595 $1.549 $1.424 MouseReel Available	Min.: 1 Mult.: 1 : 3.000		SMD/SMT	TSSOP-24	I2C	17 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders Automotive Low Volta ge 16bit TCA9539QPWRQ1 Texas Instruments 1: $4.284 24.856On Order	Mfr. Part # TCA9539QPWRQ1 Mouser Part # 595-TCA9539QPWRQ1	Texas Instruments	Interface - I/O Expanders Automotive Low Volta ge 16bit	Datasheet	24.856On Order On Order Ship Dates Mfr. #: TCA9539QPWRQ1 Stock: 0 On Order: 14.856 Expected 12/24/2026 2.000 Expected 1/7/2027 8.000 Expected 1/21/2027 Factory Lead-Time: 20 Weeks	Cut Tape $4.284 $3.236 $2.974 $2.677 Reel $2.301 View $2.541 $2.518 $2.279 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	TCA9539	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	3.6 V	400 kHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 1.65 to 5.5V 16-bit I2C TCA9555RGER Texas Instruments 1: $2.256 32.988Expected 1/21/2027	Mfr. Part # TCA9555RGER Mouser Part # 595-TCA9555RGER	Texas Instruments	Interface - I/O Expanders 1.65 to 5.5V 16-bit I2C Learn More about Texas Instruments ti tca9555 io expander	Datasheet	32.988Expected 1/21/2027	Cut Tape $2.256 $1.675 $1.515 $1.356 Reel $1.139 View $1.276 $1.230 $1.126 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	TCA9555	SMD/SMT	VQFN-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 16B I2C & SMB us I/O Expander TCA9555RTWR Texas Instruments 1: $1.903 16.806Expected 12/31/2026	Mfr. Part # TCA9555RTWR Mouser Part # 595-TCA9555RTWR	Texas Instruments	Interface - I/O Expanders Remote 16B I2C & SMB us I/O Expander Learn More about Texas Instruments ti tca9555 io expander	Datasheet	16.806Expected 12/31/2026	Cut Tape $1.903 $1.675 $1.515 $1.356 Reel $1.139 View $1.276 $1.230 $1.116 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	TCA9555	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 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in XQFN16 package PCA6408AHKX NXP Semiconductors 1: $1.390 244.985On Order	Mfr. Part # PCA6408AHKX Mouser Part # 771-PCA6408AHKX	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in XQFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	244.985On Order On Order Ship Dates Mfr. #: PCA6408AHKX Stock: 0 On Order: 72.985 Expected 5/31/2027 68.000 Expected 9/6/2027 104.000 Expected 9/27/2027 Factory Lead-Time: 30 Weeks	Cut Tape $1.390 $1.005 $909 $804 View Reel $655 $754 $723 $700 $688 $655 MouseReel Available	Min.: 1 Mult.: 1 : 4.000	PCA6408A	SMD/SMT	XQFN-16	I2C, Serial, SMBus	8 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 I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555, High-Impedance I/O in HWQFN24 package PCA9535CHF,118 NXP Semiconductors 1: $2.928 11.191On Order	Mfr. Part # PCA9535CHF,118 Mouser Part # 771-PCA9535CHF118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555, High-Impedance I/O in HWQFN24 package	Datasheet	11.191On Order On Order Ship Dates Mfr. #: PCA9535CHF,118 Stock: 0 On Order: 5.191 Expected 12/7/2026 6.000 Expected 12/24/2026 Factory Lead-Time: 30 Weeks	Cut Tape $2.928 $2.176 $1.982 $1.777 View Reel $1.492 $1.675 $1.618 $1.561 $1.538 $1.492 MouseReel Available	Min.: 1 Mult.: 1 : 6.000	PCA9535C	SMD/SMT	HWQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP24 package PCA9539APW,118 NXP Semiconductors 1: $2.176 16.179On Order	Mfr. Part # PCA9539APW,118 Mouser Part # 771-PCA9539APW,118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	16.179On Order On Order Ship Dates Mfr. #: PCA9539APW,118 Stock: 0 On Order: 1.179 Expected 1/12/2027 15.000 Expected 1/14/2027 Factory Lead-Time: 30 Weeks	Cut Tape $2.176 $1.606 $1.458 $1.299 View Reel $1.122 $1.242 $1.208 $1.122 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	PCA9539A	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package PCA9575HF,118 NXP Semiconductors 1: $3.896 11.996Expected 1/17/2028	Mfr. Part # PCA9575HF,118 Mouser Part # 771-PCA9575HF	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package	Datasheet	11.996Expected 1/17/2028	Cut Tape $3.896 $2.905 $2.655 $2.381 View Reel $1.994 $2.256 $2.199 $2.096 $2.028 $1.994 MouseReel Available	Min.: 1 Mult.: 1 : 6.000	PCA9575	SMD/SMT	HWQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.1 V	3.6 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	6 kV
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package PCAL9538ABSHP NXP Semiconductors 1: $2.541 29.140Expected 5/10/2027	Mfr. Part # PCAL9538ABSHP Mouser Part # 771-PCAL9538ABSHP	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package	Datasheet	29.140Expected 5/10/2027	Cut Tape $2.541 $1.880 $1.720 $1.549 View Reel $1.367 $1.481 $1.435 $1.413 $1.390 $1.367 MouseReel Available	Min.: 1 Mult.: 1 : 6.000	PCAL9538A	SMD/SMT	HVQFN-16	I2C, Serial	8 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 8 CHAN LOW VOLT I2C GPIO + PWM SX1508BIULTRT Semtech 1: $2.358 22.944On Order	Mfr. Part # SX1508BIULTRT Mouser Part # 947-SX1508BIULTRT	Semtech	Interface - I/O Expanders 8 CHAN LOW VOLT I2C GPIO + PWM Learn More about Semtech sx1508b sx1509b gpio	Datasheet	22.944On Order On Order Ship Dates Mfr. #: SX1508BIULTRT Stock: 0 On Order: 13.944 Expected 12/7/2026 9.000 Expected 4/19/2027 Factory Lead-Time: 26 Weeks	Cut Tape $2.358 $1.743 $1.584 $1.424 Reel $1.196 View $1.333 $1.287 $1.265 $1.162 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SX1508	SMD/SMT	QFN-20	I2C, Serial	8 I/O	With Interrupt	1.2 V	3.6 V	2 MHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16 CHAN LOW VOLT I2C GPIO +PWM SX1509BIULTRT Semtech 1: $4.010 23.107In Stock 39.000Expected 4/23/2027	Mfr. Part # SX1509BIULTRT Mouser Part # 947-SX1509BIULTRT	Semtech	Interface - I/O Expanders 16 CHAN LOW VOLT I2C GPIO +PWM Learn More about Semtech sx1508b sx1509b gpio	Datasheet	23.107In Stock 39.000Expected 4/23/2027	Cut Tape $4.010 $3.019 $2.768 $2.495 View Reel $2.187 $2.370 $2.347 $2.279 $2.187 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SX1509	SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	1.2 V	3.6 V	2 MHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders PERI PRG-I/O 5V 8MHZ 44PLCC COM CS82C55AZ Renesas / Intersil 1: $25.463 1.060On Order	Mfr. Part # CS82C55AZ Mouser Part # 968-CS82C55AZ	Renesas / Intersil	Interface - I/O Expanders PERI PRG-I/O 5V 8MHZ 44PLCC COM	Datasheet	1.060On Order On Order Ship Dates Mfr. #: CS82C55AZ Stock: 0 On Order: 20 Expected 2/12/2027 1.040 Expected 3/24/2027 Factory Lead-Time: 24 Weeks	$25.463 $20.347 $19.071 $17.682 View $17.009 $16.611	Min.: 1 Mult.: 1	82C55A	SMD/SMT	PLCC-44	Parallel	24 I/O	With Interrupt	4.5 V	5.5 V	8 MHz	0 C	+ 70 C		Tube	Without ESD Protection
Interface - I/O Expanders General-Purpose Outp ut Expander A 595-L A 595-LM8335TLE/NOPB LM8335TLX/NOPB Texas Instruments 1: $3.110 2.326Expected 11/19/2026	Mfr. Part # LM8335TLX/NOPB Mouser Part # 595-LM8335TLX/NOPB	Texas Instruments	Interface - I/O Expanders General-Purpose Outp ut Expander A 595-L A 595-LM8335TLE/NOPB	Datasheet	2.326Expected 11/19/2026	Cut Tape $3.110 $3.099 $2.996 Reel $2.575 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	LM8335	SMD/SMT	DSBGA-16	I2C, Serial	8 I/O	With Interrupt	1.8 V	3.3 V	26 MHz	- 30 C	+ 85 C		Reel, Cut Tape, MouseReel	8 kV
Interface - I/O Expanders Low Voltage 24-bit I2C-bus I/O Expander KTS1620EWA-TR Kinetic Technologies 1: $3.224 4.976Expected 12/15/2026	Mfr. Part # KTS1620EWA-TR Mouser Part # 389-KTS1620EWA-TR	Kinetic Technologies	Interface - I/O Expanders Low Voltage 24-bit I2C-bus I/O Expander Learn More about Kinetic Technologies kinetic kts1620 expander	Datasheet	4.976Expected 12/15/2026	Cut Tape $3.224 $2.404 $2.199 $1.982 Reel $1.641 View $1.834 $1.789 $1.709 $1.606 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	KTS1620	SMD/SMT	FO-WLP66-36	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
Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534PW PCA9534PWR Texas Instruments 1: $1.994 11.723On Order	Mfr. Part # PCA9534PWR Mouser Part # 595-PCA9534PWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534PW	Datasheet	11.723On Order On Order Ship Dates Mfr. #: PCA9534PWR Stock: 0 On Order: 5.723 Expected 2/1/2027 6.000 Expected 4/5/2027 Factory Lead-Time: 20 Weeks	Cut Tape $1.994 $1.458 $1.333 $1.185 Reel $997 View $1.111 $1.069 $1.064 $975 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCA9534	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538PW PCA9538PWR Texas Instruments 1: $2.381 7.693On Order	Mfr. Part # PCA9538PWR Mouser Part # 595-PCA9538PWR	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538PW	Datasheet	7.693On Order On Order Ship Dates Mfr. #: PCA9538PWR Stock: 0 On Order: 3.693 Expected 11/6/2026 4.000 Expected 11/16/2026 Factory Lead-Time: 20 Weeks	Cut Tape $2.381 $1.754 $1.595 $1.424 Reel $1.219 View $1.344 $1.299 $1.230 $1.173 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCA9538	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander PCA9539RGER Texas Instruments 1: $2.598 8.143On Order	Mfr. Part # PCA9539RGER Mouser Part # 595-PCA9539RGER	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander	Datasheet	8.143On Order On Order Ship Dates Mfr. #: PCA9539RGER Stock: 0 On Order: 2.143 Expected 1/29/2027 3.000 Expected 2/4/2027 3.000 Expected 3/11/2027 Factory Lead-Time: 20 Weeks	Cut Tape $2.598 $1.914 $1.754 $1.561 Reel $1.287 View $1.481 $1.435 $1.265 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	PCA9539	SMD/SMT	VQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 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: $2.324 5.990Expected 11/19/2026	Mfr. Part # TCA9535MRGER Mouser Part # 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	5.990Expected 11/19/2026	Cut Tape $2.324 $1.720 $1.572 $1.401 Reel $1.162 View $1.322 $1.276 $1.242 $1.136 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 1.65V to 5.5V Remote 4-Bit I2C and SMBus TCA9536ADTMR Texas Instruments 1: $2.028 10.790Expected 2/15/2027	Mfr. Part # TCA9536ADTMR Mouser Part # 595-TCA9536ADTMR	Texas Instruments	Interface - I/O Expanders 1.65V to 5.5V Remote 4-Bit I2C and SMBus Learn More about Texas Instruments ti tca9536 io expander	Datasheet	10.790Expected 2/15/2027	Cut Tape $2.028 $1.492 $1.356 $1.208 View Reel $993 $1.131 $1.089 $1.085 $1.048 $993 MouseReel Available	Min.: 1 Mult.: 1 : 5.000	TCA9536	SMD/SMT	X2SON-8	I2C, SMBus	4 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	1 kV, 2 kV, 4 kV
Interface - I/O Expanders Remote 4-Bit I² C and SMBus I/O exp TCA9537DGSR Texas Instruments 1: $1.857 14.508On Order	Mfr. Part # TCA9537DGSR Mouser Part # 595-TCA9537DGSR	Texas Instruments	Interface - I/O Expanders Remote 4-Bit I² C and SMBus I/O exp Learn More about Texas Instruments ti tca9537 expander	Datasheet	14.508On Order On Order Ship Dates Mfr. #: TCA9537DGSR Stock: 0 On Order: 7.008 Expected 2/22/2027 7.500 Expected 4/5/2027 Factory Lead-Time: 20 Weeks	Cut Tape $1.857 $1.367 $1.242 $1.098 Reel $922 View $1.032 $993 $985 $901 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	TCA9537	SMD/SMT	VSSOP-10	I2C, Serial	4 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander TCA9538PWR Texas Instruments 1: $2.313 9.512Expected 12/17/2026	Mfr. Part # TCA9538PWR Mouser Part # 595-TCA9538PWR	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander	Datasheet	9.512Expected 12/17/2026	Cut Tape $2.313 $1.709 $1.549 $1.390 Reel $1.185 View $1.310 $1.265 $1.106 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	TCA9538	SMD/SMT	TSSOP-16	I2C, Serial	8 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 8-bit translating I& sup2;C-bus/SMBus I/ TCAL6408DTUR Texas Instruments 1: $1.743 6.000On Order	Mfr. Part # TCAL6408DTUR Mouser Part # 595-TCAL6408DTUR	Texas Instruments	Interface - I/O Expanders 8-bit translating I& sup2;C-bus/SMBus I/ Learn More about Texas Instruments ti tcal6408 i2c bus smbus io expander	Datasheet	6.000On Order On Order Ship Dates Mfr. #: TCAL6408DTUR Stock: 0 On Order: 3.000 Expected 1/28/2027 3.000 Expected 2/11/2027 Factory Lead-Time: 20 Weeks	Cut Tape $1.743 $1.276 $1.162 $1.024 Reel $841 View $963 $925 $916 $825 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	TCAL6408	SMD/SMT	X2QFN-16	I2C, Serial	8 I/O	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 TCAL6416RTWR Texas Instruments 1: $2.404 4.980On 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	4.980On Order On Order Ship Dates Mfr. #: TCAL6416RTWR Stock: 0 On Order: 1.980 Expected 10/26/2026 3.000 Expected 11/19/2026 Factory Lead-Time: 20 Weeks	Cut Tape $2.404 $1.777 $1.629 $1.447 Reel $1.208 View $1.367 $1.322 $1.299 $1.173 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
Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER TCAL9538DTUR Texas Instruments 1: $2.575 6.000Expected 3/11/2027	Mfr. Part # TCAL9538DTUR Mouser Part # 595-TCAL9538DTUR	Texas Instruments	Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER Learn More about Texas Instruments ti tcal9538 expanders	Datasheet	6.000Expected 3/11/2027	$2.575 $1.914 $1.743 $1.561 View $1.470 $1.424 $1.401 $1.310 $1.287	Min.: 1 Mult.: 1	TCAL9538	SMD/SMT	X2QFN-16	I2C, Serial, SMBus	9 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C
Interface - I/O Expanders 16-bit low-voltage I C-bus and SMBus I/O TCAL9539RTWR Texas Instruments 1: $2.541 9.725Expected 10/26/2026	Mfr. Part # TCAL9539RTWR Mouser Part # 595-TCAL9539RTWR	Texas Instruments	Interface - I/O Expanders 16-bit low-voltage I C-bus and SMBus I/O Learn More about Texas Instruments ti tcal9539r i2c bus smbus io expander	Datasheet	9.725Expected 10/26/2026	Cut Tape $2.541 $1.868 $1.709 $1.527 View Reel $1.242 $1.435 $1.390 $1.356 $1.242 MouseReel Available	Min.: 1 Mult.: 1 : 5.000	TCAL9539	SMD/SMT	WQFN-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel