.hide-partial { max-height: none; } .show-more { display: none; }

Interface - I/O Expanders

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 601

Applied Filters:

Manufacturer

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

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) 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	Packaging	ESD Protection
Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os MAX7321AEE+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7321AEE+ Mouser Part No 700-MAX7321AEE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os	Datasheet			Restricted Availability	MAX7321	SMD/SMT	QSOP-16	I2C, Serial	8 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outpu MAX7322AEE+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7322AEE+ Mouser Part No 700-MAX7322AEE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outpu	Datasheet			Restricted Availability	MAX7322	SMD/SMT	QSOP-16	I2C, Serial	4 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os MAX7323ATE+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7323ATE+ Mouser Part No 700-MAX7323ATE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os	Datasheet			Restricted Availability	MAX7323	SMD/SMT	TQFN-EP-16	I2C, Serial	4 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with 8 Push-Pull and 8 MAX7325AEG+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7325AEG+ Mouser Part No 700-MAX7325AEG	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Push-Pull and 8	Datasheet			Restricted Availability	MAX7325	SMD/SMT	QSOP-24	I2C, Serial	8 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with 8 Push-Pull and 8 MAX7325ATG+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7325ATG+ Mouser Part No 700-MAX7325ATG	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Push-Pull and 8	Datasheet			Restricted Availability	MAX7325	SMD/SMT	TQFN-EP-24	I2C, Serial	8 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with 12 Push-Pull Outp MAX7326AEG+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7326AEG+ Mouser Part No 700-MAX7326AEG	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 12 Push-Pull Outp	Datasheet			Restricted Availability	MAX7326	SMD/SMT	QSOP-24	I2C, Serial	16 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders Expandable 5-Ch I2C Hub A 595-PCA9518DWT A 595-PCA9518DWT PCA9518DW Texas Instruments 1: HK$42.17 129In Stock	Mfr. Part No. PCA9518DW Mouser Part No 595-PCA9518DW	Texas Instruments	Interface - I/O Expanders Expandable 5-Ch I2C Hub A 595-PCA9518DWT A 595-PCA9518DWT	Datasheet	129In Stock	HK$42.17 HK$32.14 HK$29.51 HK$26.80 View HK$25.56 HK$24.58 HK$24.41 HK$24.33	Min.: 1 Mult.: 1	PCA9518	SMD/SMT	SOIC-20	I2C, Serial	5 I/O	Without Interrupt	3 V	3.6 V	400 kHz	- 40 C	+ 85 C	Tube	2 kV
Interface - I/O Expanders Remote 8B I2C and Lo -Pwr I/O Expander PCA9534ARGTR Texas Instruments 1: HK$19.23 119In Stock 18,000Expected 7/1/2027	Mfr. Part No. PCA9534ARGTR Mouser Part No 595-PCA9534ARGTR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C and Lo -Pwr I/O Expander	Datasheet	119In Stock 18,000Expected 7/1/2027	Cut Tape HK$19.23 HK$14.22 HK$12.99 HK$11.67 Reel HK$10.11 View HK$11.01 HK$10.69 HK$10.44 HK$9.86 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCA9534A	SMD/SMT	VQFN-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 Remote 8B I2C & Lo- Pwr I/O Expander PCA9534DGVR Texas Instruments 1: HK$37.24 205In Stock	Mfr. Part No. PCA9534DGVR Mouser Part No 595-PCA9534DGVR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander	Datasheet	205In Stock	Cut Tape HK$37.24 HK$28.03 HK$25.73 HK$23.26 View Reel HK$20.06 HK$22.03 HK$21.87 HK$20.55 HK$20.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9534	SMD/SMT	TVSOP-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 Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534PW PCA9534PWR Texas Instruments 1: HK$14.39 554In Stock 6,000Expected 1/2/2027	Mfr. Part No. PCA9534PWR Mouser Part No 595-PCA9534PWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534PW	Datasheet	554In Stock 6,000Expected 1/2/2027	Cut Tape HK$14.39 HK$10.52 HK$9.62 HK$8.55 View Reel HK$7.68 HK$8.01 HK$7.71 HK$7.68 HK$7.68 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 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 16-Bit I2C & SMBus L o-Pwr I/O Expander PCA9535DGVR Texas Instruments 1: HK$25.48 328In Stock 2,000Expected 1/2/2027	Mfr. Part No. PCA9535DGVR Mouser Part No 595-PCA9535DGVR	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander	Datasheet	328In Stock 2,000Expected 1/2/2027	Cut Tape HK$25.48 HK$24.82 HK$22.44 HK$21.70 Reel HK$19.73 View HK$20.47 HK$19.65 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9535	SMD/SMT	TVSOP-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 Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538DWR PCA9538DW Texas Instruments 1: HK$37.24 654In Stock	Mfr. Part No. PCA9538DW Mouser Part No 595-PCA9538DW	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538DWR	Datasheet	654In Stock	HK$37.24 HK$28.03 HK$25.81 HK$23.18 View HK$22.03 HK$21.29 HK$20.71 HK$20.47	Min.: 1 Mult.: 1	PCA9538	SMD/SMT	SOIC-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube	2 kV
Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538PW PCA9538PWR Texas Instruments 1: HK$17.18 53In Stock 8,000Expected 16/11/2026	Mfr. Part No. PCA9538PWR Mouser Part No 595-PCA9538PWR	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538PW	Datasheet	53In Stock 8,000Expected 16/11/2026	Cut Tape HK$17.18 HK$12.66 HK$11.51 HK$10.28 Reel HK$8.80 View HK$9.70 HK$9.37 HK$8.88 HK$8.47 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 Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCA9555DB PCA9555DBR Texas Instruments 1: HK$17.84 753In Stock 8,000On Order	Mfr. Part No. PCA9555DBR Mouser Part No 595-PCA9555DBR	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCA9555DB	Datasheet	753In Stock 8,000On Order On Order Ship Dates Mfr. No: PCA9555DBR Stock: 753 Can Dispatch Immediately On Order: 4,000 Expected 21/1/2027 4,000 Expected 15/3/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$17.84 HK$13.15 HK$12.00 HK$10.69 Reel HK$9.12 View HK$10.11 HK$9.70 HK$9.29 HK$8.80 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9555	SMD/SMT	SSOP-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 Remote 16-Bit I2C & SMBus I/O Expander PCA9555RGER Texas Instruments 1: HK$19.23 15In Stock 12,000On Order	Mfr. Part No. PCA9555RGER Mouser Part No 595-PCA9555RGER	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander	Datasheet	15In Stock 12,000On Order On Order Ship Dates Mfr. No: PCA9555RGER Stock: 15 Can Dispatch Immediately On Order: 3,000 Expected 8/1/2027 9,000 Expected 21/1/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$19.23 HK$14.30 HK$13.07 HK$11.67 Reel HK$9.78 View HK$11.01 HK$10.69 HK$10.44 HK$9.62 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCA9555	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 Remote 8-Bit I2C and Low-Pwr I/O Expande A 595-TCA9534ADWR TCA9534ADWT Texas Instruments 1: HK$18.17 282In Stock	Mfr. Part No. TCA9534ADWT Mouser Part No 595-TCA9534ADWT	Texas Instruments	Interface - I/O Expanders Remote 8-Bit I2C and Low-Pwr I/O Expande A 595-TCA9534ADWR	Datasheet	282In Stock	Cut Tape HK$18.17 HK$13.48 HK$12.25 HK$10.93 Reel HK$10.60 View HK$9.70 HK$9.45 HK$9.21 MouseReel Available	Min.: 1 Mult.: 1 : 250	TCA9534A	SMD/SMT	SOIC-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 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534DWR TCA9534DWT Texas Instruments 1: HK$16.69 501In Stock	Mfr. Part No. TCA9534DWT Mouser Part No 595-TCA9534DWT	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534DWR	Datasheet	501In Stock	Cut Tape HK$16.69 HK$12.33 HK$11.26 HK$10.03 Reel HK$9.37 View HK$8.88 HK$8.55 HK$8.47 HK$8.30 MouseReel Available	Min.: 1 Mult.: 1 : 250	TCA9534	SMD/SMT	SOIC-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 1.65- to 5.5- V I2C/SMBus I/O exp A 595-TCA9535DBR TCA9535DBT Texas Instruments 1: HK$21.54 452In 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	452In Stock	Cut Tape HK$21.54 HK$16.03 HK$14.63 HK$13.15 Reel HK$12.33 View HK$11.67 HK$11.18 HK$11.01 HK$10.85 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 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp TCA9535MRGER Texas Instruments 1: HK$17.26 8,965On Order	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	8,965On Order On Order Ship Dates Mfr. No: TCA9535MRGER Stock: 0 On Order: 2,965 Pending 6,000 Expected 25/2/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$17.26 HK$12.74 HK$11.59 HK$10.36 Reel HK$8.47 View HK$9.95 HK$8.30 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 Remt 16Bit I2C SMBus Lo-Pwr I/O Expndr TCA9535PWR Texas Instruments 1: HK$16.03 163In 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	163In Stock 32,000On Order On Order Ship Dates Mfr. No: TCA9535PWR Stock: 163 Can Dispatch Immediately On Order: 18,000 Expected 10/12/2026 14,000 Expected 28/1/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$16.03 HK$11.75 HK$10.69 HK$9.54 Reel HK$8.07 View HK$8.96 HK$8.63 HK$7.89 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 1.65V to 5.5V Remote 4-Bit I2C and SMBus TCA9536BDTMR Texas Instruments 1: HK$14.63 5,612In Stock	Mfr. Part No. TCA9536BDTMR Mouser Part No 595-TCA9536BDTMR	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	5,612In Stock	Cut Tape HK$14.63 HK$10.77 HK$9.78 HK$8.71 View Reel HK$7.06 HK$8.16 HK$7.86 HK$7.83 HK$7.56 HK$7.06 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 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWR TCA9554DWT Texas Instruments 1: HK$18.25 37In Stock	Mfr. Part No. TCA9554DWT Mouser Part No 595-TCA9554DWT	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWR Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	37In Stock	Cut Tape HK$18.25 HK$13.56 HK$12.33 HK$11.01 Reel HK$10.36 View HK$9.78 HK$9.45 HK$9.21 HK$9.04 MouseReel Available	Min.: 1 Mult.: 1 : 250	TCA9554	SMD/SMT	SOIC-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
Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp A 595-TCA9555DBR TCA9555DBT Texas Instruments 1: HK$22.19 467In Stock	Mfr. Part No. TCA9555DBT Mouser Part No 595-TCA9555DBT	Texas Instruments	Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp A 595-TCA9555DBR Learn More about Texas Instruments ti tca9555 io expander	Datasheet	467In Stock	Cut Tape HK$22.19 HK$16.52 HK$15.12 HK$13.56 Reel HK$12.74 View HK$12.08 HK$11.67 HK$11.43 HK$11.26 MouseReel Available	Min.: 1 Mult.: 1 : 250	TCA9555	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
Interface - I/O Expanders Remote 16B I2C & SMB us I/O Expander TCA9555RTWR Texas Instruments 1: HK$14.39 16,923Expected 10/12/2026	Mfr. Part No. TCA9555RTWR Mouser Part No 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	16,923Expected 10/12/2026	Cut Tape HK$14.39 HK$10.60 HK$9.62 HK$8.55 View Reel HK$7.70 HK$8.04 HK$7.74 HK$7.70 HK$7.70 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 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 16-bit translating I C-bus/SMBus I/O exp TCAL6416PWR Texas Instruments 1: HK$17.34 111In Stock 3,000Expected 15/1/2027	Mfr. Part No. TCAL6416PWR Mouser Part No 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	111In Stock 3,000Expected 15/1/2027	Cut Tape HK$17.34 HK$12.82 HK$11.75 HK$10.44 Reel HK$8.80 View HK$9.86 HK$9.54 HK$9.37 HK$8.47 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