.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: 598

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	Qualification	Packaging	ESD Protection
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18-E/MJ Microchip Technology 1: HK$17.67 1,381In Stock 4,095Expected 4/1/2027	Mfr. Part No. MCP23S18-E/MJ Mouser Part No 579-MCP23S18-E/MJ	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	1,381In Stock 4,095Expected 4/1/2027	HK$17.67 HK$14.80 HK$13.40	Min.: 1 Mult.: 1		SMD/SMT	QFN-24	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18T-E/MJ Microchip Technology 1: HK$17.67 2,405In Stock 9,900Expected 1/1/2027	Mfr. Part No. MCP23S18T-E/MJ Mouser Part No 579-MCP23S18T-E/MJ	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	2,405In Stock 9,900Expected 1/1/2027	Cut Tape HK$17.67 HK$14.80 Reel HK$13.40 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	MCP23S18	SMD/SMT	QFN-24	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders Mixed signal Expandr MCP25050-I/SL Microchip Technology 1: HK$39.78 1,011In Stock	Mfr. Part No. MCP25050-I/SL Mouser Part No 579-MCP25050-I/SL	Microchip Technology	Interface - I/O Expanders Mixed signal Expandr	Datasheet	1,011In Stock	HK$39.78 HK$33.04 HK$32.88	Min.: 1 Mult.: 1		SMD/SMT	SOIC-14	CAN	8 I/O	Without Interrupt	5.5 V	5.5 V	25 MHz	- 65 C	+ 150 C		Tube	3.5 kV
Interface - I/O Expanders I/O PORT EXPANDR FOR NEUTRON 534 CY8C9520A-24PVXIT Infineon Technologies 1: HK$51.21 1,958In Stock	Mfr. Part No. CY8C9520A-24PVXIT Mouser Part No 727-CY8C9520A24PVXIT	Infineon Technologies	Interface - I/O Expanders I/O PORT EXPANDR FOR NEUTRON 534 Learn More about Infineon Technologies cypress psoc	Datasheet	1,958In Stock	Cut Tape HK$51.21 HK$39.29 HK$36.33 HK$33.04 Reel HK$29.92 View HK$31.65 HK$30.25 HK$29.43 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	CY8C95xx	SMD/SMT	SSOP-28	I2C, Serial, SMBus	20 I/O	With Interrupt	3 V	5.25 V	100 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 11Kb 40 IO EXPANDER W/EEPROM CY8C9540A-24PVXIT Infineon Technologies 1: HK$96.91 1,248In Stock	Mfr. Part No. CY8C9540A-24PVXIT Mouser Part No 727-CY8C9540A24PVXIT	Infineon Technologies	Interface - I/O Expanders 11Kb 40 IO EXPANDER W/EEPROM Learn More about Infineon Technologies cypress psoc	Datasheet	1,248In Stock	Cut Tape HK$96.91 HK$75.95 HK$70.69 HK$64.94 View Reel HK$59.43 HK$64.03 HK$60.25 HK$59.43 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	CY8C95xx	SMD/SMT	SSOP-48	I2C, Serial, SMBus	40 I/O	With Interrupt	3 V	5.25 V	100 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7300AAX+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7300AAX+ Mouser Part No 700-MAX7300AAX	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability	MAX7300	SMD/SMT	SSOP-36	I2C, Serial	20 I/O	With Interrupt	2.5 V	5.5 V	400 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7301ATL+T Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7301ATL+T Mouser Part No 700-MAX7301ATLT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability	MAX7301	SMD/SMT	TQFN-40	Serial, SPI	28 I/O	With Interrupt	2.5 V	5.5 V	26 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311AWG+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7311AWG+ Mouser Part No 700-MAX7311AWG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability	MAX7311	SMD/SMT	SOIC-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7312AAG+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7312AAG+ Mouser Part No 700-MAX7312AAG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability	MAX7312	SMD/SMT	SSOP-24	I2C, Serial	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders 18-Port GPIO with LED Intensity Control, MAX7314ATG+T Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7314ATG+T Mouser Part No 700-MAX7314ATGT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 18-Port GPIO with LED Intensity Control, Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability	MAX7314	SMD/SMT	TQFN-EP-24	I2C, Serial	18 I/O	With Interrupt	2 V	3.6 V	400 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 10-Port SPI-Interfaced I/O Expander with MAX7317ATE+T Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. MAX7317ATE+T Mouser Part No 700-MAX7317ATET	Analog Devices / Maxim Integrated	Interface - I/O Expanders 10-Port SPI-Interfaced I/O Expander with Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability	MAX7317	SMD/SMT	TQFN-16	Serial, SPI	10 I/O	Without Interrupt	2.25 V	3.6 V	26 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416RDTOR Texas Instruments 1: HK$20.96 980In Stock 3,000Expected 21/12/2026	Mfr. Part No. TCAL6416RDTOR Mouser Part No 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 21/12/2026	HK$20.96 HK$15.62 HK$14.22 HK$12.74 View HK$11.84 HK$11.43 HK$11.18 HK$10.44 HK$10.19	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: HK$17.34 363In Stock 3,000Expected 21/12/2026	Mfr. Part No. TCAL6416RTWR Mouser Part No 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 21/12/2026	Cut Tape HK$17.34 HK$12.82 HK$11.75 HK$10.44 Reel HK$8.71 View HK$9.86 HK$9.54 HK$9.37 HK$8.47 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 NCA9539PW-Q100/SOT355/TSSOP24 NCA9539PW-Q100J Nexperia 1: HK$15.21 639In Stock	Mfr. Part No. NCA9539PW-Q100J Mouser Part No 771-NCA9539PW-Q100J	Nexperia	Interface - I/O Expanders NCA9539PW-Q100/SOT355/TSSOP24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	639In Stock	Cut Tape HK$15.21 HK$11.18 HK$10.19 HK$9.04 Reel HK$7.64 View HK$8.55 HK$8.20 HK$8.17 HK$7.48 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
Interface - I/O Expanders PCA9539PW/SOT355/TSSOP24 PCA9539PWJ Nexperia 1: HK$15.78 1,022In Stock	Mfr. Part No. PCA9539PWJ Mouser Part No 771-PCA9539PWJ	Nexperia	Interface - I/O Expanders PCA9539PW/SOT355/TSSOP24	Datasheet	1,022In Stock	Cut Tape HK$15.78 HK$11.59 HK$10.60 HK$9.45 Reel HK$8.14 View HK$8.88 HK$8.55 HK$7.79 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	With ESD Protection
Interface - I/O Expanders 8-Bit I2C-Controlled GPIO Expander FXL6408UMX onsemi 1: HK$5.01 32,058In Stock 105,000On Order	Mfr. Part No. FXL6408UMX Mouser Part No 512-FXL6408UMX	onsemi	Interface - I/O Expanders 8-Bit I2C-Controlled GPIO Expander	Datasheet	32,058In Stock 105,000On Order On Order Ship Dates Mfr. No: FXL6408UMX Stock: 32,058 Can Dispatch Immediately On Order: 45,000 Expected 2/2/2027 60,000 Expected 18/6/2027 Factory Lead Time: 35 Weeks	Cut Tape HK$5.01 HK$3.94 HK$3.12 HK$2.72 View Reel HK$2.24 HK$2.51 HK$2.40 HK$2.32 HK$2.24 HK$2.24 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	FXL6408	SMD/SMT	UQFN-16	I2C, Serial	8 I/O	With Interrupt	1.65 V	3.6 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders I2C-Compatible Keypd Cntlr GPIO PWM A 59 A 595-LM8330TMX/NOPB LM8330TME/NOPB Texas Instruments 1: HK$27.37 1,600In Stock	Mfr. Part No. LM8330TME/NOPB Mouser Part No 595-LM8330TME/NOPB	Texas Instruments	Interface - I/O Expanders I2C-Compatible Keypd Cntlr GPIO PWM A 59 A 595-LM8330TMX/NOPB	Datasheet	1,600In Stock	Cut Tape HK$27.37 HK$20.39 HK$18.66 HK$17.10 Reel HK$14.47 View HK$13.56 HK$13.32 MouseReel Available	Min.: 1 Mult.: 1 : 250	LM8330	SMD/SMT	DSBGA-25	I2C, Serial		With Interrupt	1.62 V	1.98 V	400 kHz	- 30 C	+ 85 C		Reel, Cut Tape, MouseReel	8 kV
Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534APW PCA9534APWR Texas Instruments 1: HK$17.67 3,705In Stock	Mfr. Part No. PCA9534APWR Mouser Part No 595-PCA9534APWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534APW	Datasheet	3,705In Stock	Cut Tape HK$17.67 HK$13.07 HK$11.92 HK$10.69 Reel HK$9.04 View HK$10.03 HK$9.70 HK$8.88 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9534A	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 8B I2C & Lo- Pwr I/O Expander PCA9534ARGVR Texas Instruments 1: HK$34.94 3,327In Stock	Mfr. Part No. PCA9534ARGVR Mouser Part No 595-PCA9534ARGVR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander	Datasheet	3,327In Stock	Cut Tape HK$34.94 HK$26.47 HK$24.33 HK$22.03 View Reel HK$20.30 HK$21.70 HK$21.29 HK$20.30 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	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 A 5 A 595-PCA9534DW PCA9534DWR Texas Instruments 1: HK$25.89 3,515In Stock	Mfr. Part No. PCA9534DWR Mouser Part No 595-PCA9534DWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534DW	Datasheet	3,515In Stock	Cut Tape HK$25.89 HK$19.40 HK$17.84 HK$16.03 Reel HK$14.88 View HK$15.21 HK$14.96 HK$13.65 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9534	SMD/SMT	SOIC-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 PCA9535DBQR Texas Instruments 1: HK$39.37 695In Stock	Mfr. Part No. PCA9535DBQR Mouser Part No 595-PCA9535DBQR	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander	Datasheet	695In Stock	Cut Tape HK$39.37 HK$29.67 HK$27.21 HK$24.58 View Reel HK$21.29 HK$23.34 HK$23.10 HK$21.70 HK$21.29 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9535	SMD/SMT	QSOP-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 & SMBus L o-Pwr I/O Expander A 595-PCA9535DWR PCA9535DW Texas Instruments 1: HK$43.73 514In Stock	Mfr. Part No. PCA9535DW Mouser Part No 595-PCA9535DW	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9535DWR	Datasheet	514In Stock	HK$43.73 HK$34.28 HK$29.10 HK$27.78 View HK$26.39 HK$25.81 HK$25.65 HK$25.56 Quote	Min.: 1 Mult.: 1	PCA9535	SMD/SMT	SOIC-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Tube	2 kV
Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander PCA9536DGKR Texas Instruments 1: HK$13.15 2,793In Stock 22,500On Order	Mfr. Part No. PCA9536DGKR Mouser Part No 595-PCA9536DGKR	Texas Instruments	Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander	Datasheet	2,793In Stock 22,500On Order On Order Ship Dates Mfr. No: PCA9536DGKR Stock: 2,793 Can Dispatch Immediately On Order: 10,000 Expected 8/3/2027 12,500 Expected 1/4/2027 Factory Lead Time: 26 Weeks	Cut Tape HK$13.15 HK$9.62 HK$8.71 HK$7.71 View Reel HK$6.50 HK$7.25 HK$6.97 HK$6.90 HK$6.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9536	SMD/SMT	VSSOP-8	I2C, Serial, SMBus	4 I/O	Without Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander ALT 595-PCA9536DGKR PCA9536DGKRG4 Texas Instruments 1: HK$12.99 2,381In Stock 2,500Expected 21/12/2026	Mfr. Part No. PCA9536DGKRG4 Mouser Part No 595-PCA9536DGKRG4	Texas Instruments	Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander ALT 595-PCA9536DGKR	Datasheet	2,381In Stock 2,500Expected 21/12/2026	Cut Tape HK$12.99 HK$9.45 HK$8.63 HK$7.60 Reel HK$5.80 View HK$7.13 HK$6.86 HK$6.77 HK$5.67 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9536	SMD/SMT	VSSOP-8	I2C, Serial, SMBus	4 I/O	Without 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 579In 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	579In Stock	HK$37.24 HK$28.03 HK$25.81 HK$23.18 View HK$22.44 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