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400 kHz Interface ICs

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Maximum Clock Frequency = 400 kHz

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Product	Type	Interface Type	Mounting Style	Package/Case
Interface - I/O Expanders Remote 16B I2C & SMB us I/O Expander TCA9555PWR Texas Instruments 1: $1.97 17,937In Stock	Mfr. Part No. TCA9555PWR Mouser Part No 595-TCA9555PWR	Texas Instruments	Interface - I/O Expanders Remote 16B I2C & SMB us I/O Expander Learn More about Texas Instruments ti tca9555 io expander	Datasheet	17,937In Stock	Cut Tape $1.97 $1.43 $1.30 $1.16 Reel $0.983 View $1.09 $1.05 $1.04 $0.961 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with 2-kbit EEPROM and Quasi feature in HVQFN16 package PCA9500BS,118 NXP Semiconductors 1: $3.93 8,000In Stock	Mfr. Part No. PCA9500BS,118 Mouser Part No 771-PCA9500BS-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with 2-kbit EEPROM and Quasi feature in HVQFN16 package	Datasheet	8,000In Stock	Cut Tape $3.93 $2.93 $2.67 $2.40 View Reel $2.01 $2.27 $2.22 $2.11 $2.05 $2.01 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	HVQFN-16
Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset in TSSOP56 package PCA9505DGGY NXP Semiconductors 1: $7.08 8,271In Stock	Mfr. Part No. PCA9505DGGY Mouser Part No 771-PCA9505DGGY	NXP Semiconductors	Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset in TSSOP56 package	Datasheet	8,271In Stock	Cut Tape $7.08 $5.42 $5.01 $4.56 $4.52 Reel $3.84 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders	I/O Expanders	I2C, Serial	SMD/SMT	TSSOP-56
Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset, Low Power version of PCA9505 in TSSOP56 package PCA9506DGG,518 NXP Semiconductors 1: $8.58 12,553In Stock 8,000Expected 2027/03/22	Mfr. Part No. PCA9506DGG,518 Mouser Part No 771-PCA9506DGG-T	NXP Semiconductors	Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset, Low Power version of PCA9505 in TSSOP56 package	Datasheet	12,553In Stock 8,000Expected 2027/03/22	Cut Tape $8.58 $6.63 $6.14 $5.61 View Reel $4.95 $5.33 $5.18 $5.09 $4.95 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders	I/O Expanders	I2C, Serial	SMD/SMT	TSSOP-56
Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus/SMBus repeater PCA9509GM,125 NXP Semiconductors 1: $1.17 30,528In Stock	Mfr. Part No. PCA9509GM,125 Mouser Part No 771-PCA9509GM125	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus/SMBus repeater Learn More about NXP Semiconductors nxp pca9509 repeater	Datasheet	30,528In Stock	Cut Tape $1.17 $0.861 $0.783 $0.687 View Reel $0.584 $0.649 $0.626 $0.609 $0.592 $0.584 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Signal Buffers, Repeaters	Repeaters	I2C Bus Repeater	I2C, SMBus	SMD/SMT	XQFN-8
Interface - Signal Buffers, Repeaters I2C-bus repeater PCA9515AD,118 NXP Semiconductors 1: $1.87 29,510In Stock	Mfr. Part No. PCA9515AD,118 Mouser Part No 771-PCA9515AD-T	NXP Semiconductors	Interface - Signal Buffers, Repeaters I2C-bus repeater	Datasheet	29,510In Stock	Cut Tape $1.87 $1.51 $1.33 $1.21 View Reel $1.06 $1.14 $1.10 $1.09 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	I2C, SMBus	I2C, SMBus	SMD/SMT	SOIC-8
Interface - Signal Buffers, Repeaters I2C-bus repeater PCA9515ADP,118 NXP Semiconductors 1: $2.07 15,744In Stock	Mfr. Part No. PCA9515ADP,118 Mouser Part No 771-PCA9515ADP-T	NXP Semiconductors	Interface - Signal Buffers, Repeaters I2C-bus repeater	Datasheet	15,744In Stock	Cut Tape $2.07 $1.54 $1.40 $1.26 View Reel $1.06 $1.17 $1.14 $1.09 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	I2C, SMBus	I2C, SMBus	SMD/SMT	TSSOP-8
Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater PCA9517AD,118 NXP Semiconductors 1: $1.60 81,074In Stock	Mfr. Part No. PCA9517AD,118 Mouser Part No 771-PCA9517AD118	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater	Datasheet	81,074In Stock	Cut Tape $1.60 $1.19 $1.11 $0.972 Reel $0.842 View $0.918 $0.883 $0.877 $0.829 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	Voltage Level Translators	I2C	SMD/SMT	SOIC-8
Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater PCA9517ADP,118 NXP Semiconductors 1: $1.45 69,684In Stock	Mfr. Part No. PCA9517ADP,118 Mouser Part No 771-PCA9517ADP118	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater	Datasheet	69,684In Stock	Cut Tape $1.45 $1.05 $0.955 $0.844 Reel $0.705 View $0.791 $0.759 $0.726 $0.688 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	Voltage Level Translators	I2C	SMD/SMT	TSSOP-8
Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater PCA9517DP,118 NXP Semiconductors 1: $1.40 37,265In Stock 35,000On Order	Mfr. Part No. PCA9517DP,118 Mouser Part No 771-PCA9517DP-T	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater	Datasheet	37,265In Stock 35,000On Order On Order Ship Dates Mfr. No: PCA9517DP,118 Stock: 37,265 Can Dispatch Immediately On Order: 25,000 Expected 2027/02/15 5,000 Expected 2027/07/05 5,000 Expected 2027/07/12 Factory Lead Time: 27 Weeks	Cut Tape $1.40 $1.09 $0.959 $0.857 Reel $0.733 View $0.806 $0.776 $0.766 $0.732 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	Voltage Level Translators	I2C	SMD/SMT	TSSOP-8
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9554 in TSSOP16 package PCA9534PW,118 NXP Semiconductors 1: $2.04 48,602In Stock	Mfr. Part No. PCA9534PW,118 Mouser Part No 771-PCA9534PW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9554 in TSSOP16 package	Datasheet	48,602In Stock	Cut Tape $2.04 $1.56 $1.40 $1.26 Reel $1.09 View $1.19 $1.14 $1.13 $1.08 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in HVQFN24 package PCA9535BS,118 NXP Semiconductors 1: $2.86 34,313In Stock 24,000Expected 2026/11/04	Mfr. Part No. PCA9535BS,118 Mouser Part No 771-PCA9535BS-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in HVQFN24 package	Datasheet	34,313In Stock 24,000Expected 2026/11/04	Cut Tape $2.86 $2.14 $1.95 $1.76 View Reel $1.47 $1.66 $1.62 $1.54 $1.49 $1.47 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	HVQFN-24
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in TSSOP24 package PCA9535PW,118 NXP Semiconductors 1: $2.86 9,091In Stock 17,500Expected 2027/01/13	Mfr. Part No. PCA9535PW,118 Mouser Part No 771-PCA9535PW-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in TSSOP24 package	Datasheet	9,091In Stock 17,500Expected 2027/01/13	Cut Tape $2.86 $2.14 $1.95 $1.76 View Reel $1.45 $1.66 $1.62 $1.54 $1.45 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in TSSOP8 package PCA9536DP,118 NXP Semiconductors 1: $2.04 51,506In Stock	Mfr. Part No. PCA9536DP,118 Mouser Part No 771-PCA9536DP-T	NXP Semiconductors	Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in TSSOP8 package	Datasheet	51,506In Stock	Cut Tape $2.04 $1.50 $1.37 $1.22 Reel $1.04 View $1.15 $1.11 $1.09 $1.01 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-8
Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in HVSON8 package PCA9536TK,118 NXP Semiconductors 1: $2.02 24,976In Stock 18,000Expected 2026/11/23	Mfr. Part No. PCA9536TK,118 Mouser Part No 771-PCA9536TK118	NXP Semiconductors	Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in HVSON8 package	Datasheet	24,976In Stock 18,000Expected 2026/11/23	Cut Tape $2.02 $1.50 $1.37 $1.24 View Reel $1.07 $1.17 $1.14 $1.13 $1.07 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	HVSON-8
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package PCA9538PW,118 NXP Semiconductors 1: $2.69 14,837In Stock	Mfr. Part No. PCA9538PW,118 Mouser Part No 771-PCA9538PW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package	Datasheet	14,837In Stock	Cut Tape $2.69 $2.00 $1.83 $1.63 Reel $1.40 View $1.54 $1.49 $1.43 $1.36 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package PCA9539PW/Q900,118 NXP Semiconductors 1: $2.97 44,690In Stock	Mfr. Part No. PCA9539PW/Q900,118 Mouser Part No 771-PCA9539PW/Q90011	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package	Datasheet	44,690In Stock	Cut Tape $2.97 $2.21 $2.04 $1.83 $1.72 Reel $1.45 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554 in TSSOP16 package PCA9554APW,118 NXP Semiconductors 1: $2.11 13,891In Stock 10,000Expected 2026/11/12	Mfr. Part No. PCA9554APW,118 Mouser Part No 771-PCA9554APW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554 in TSSOP16 package	Datasheet	13,891In Stock 10,000Expected 2026/11/12	Cut Tape $2.11 $1.56 $1.43 $1.27 View Reel $1.08 $1.20 $1.16 $1.14 $1.08 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554A in TSSOP16 package PCA9554PW,118 NXP Semiconductors 1: $2.11 32,736In Stock	Mfr. Part No. PCA9554PW,118 Mouser Part No 771-PCA9554PW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554A in TSSOP16 package	Datasheet	32,736In Stock	Cut Tape $2.11 $1.56 $1.43 $1.27 View Reel $1.08 $1.20 $1.16 $1.14 $1.08 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and 4 Address pins in TSSOP28 package PCA9575PW2,118 NXP Semiconductors 1: $3.05 12,429In Stock	Mfr. Part No. PCA9575PW2,118 Mouser Part No 771-PCA9575PW2,118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and 4 Address pins in TSSOP28 package	Datasheet	12,429In Stock	Cut Tape $3.05 $2.28 $2.09 $1.90 View Reel $1.63 $1.76 $1.73 $1.69 $1.63 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-28
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package PCAL6408ABSHP NXP Semiconductors 1: $1.50 50,454In Stock	Mfr. Part No. PCAL6408ABSHP Mouser Part No 771-PCAL6408ABSHP	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	50,454In Stock	Cut Tape $1.50 $1.09 $0.989 $0.869 View Reel $0.733 $0.84 $0.807 $0.799 $0.771 $0.733 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	HVQFN-16
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in XQFN16 package PCAL6408AHKX NXP Semiconductors 1: $1.33 38,158In Stock 56,000Expected 2027/01/04	Mfr. Part No. PCAL6408AHKX Mouser Part No 771-PCAL6408AHKX	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in XQFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	38,158In Stock 56,000Expected 2027/01/04	Cut Tape $1.33 $0.956 $0.866 $0.768 View Reel $0.635 $0.719 $0.691 $0.67 $0.661 $0.635 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	XQFN-16
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package PCAL6408APWJ NXP Semiconductors 1: $1.45 36,214In Stock	Mfr. Part No. PCAL6408APWJ Mouser Part No 771-PCAL6408APWJ	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	36,214In Stock	Cut Tape $1.45 $1.06 $1.01 $0.894 Reel $0.756 View $0.84 $0.807 $0.799 $0.74 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package PCAL6416AHF,128 NXP Semiconductors 1: $1.60 83,571In Stock	Mfr. Part No. PCAL6416AHF,128 Mouser Part No 771-PCAL6416AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	83,571In Stock	Cut Tape $1.60 $1.17 $1.07 $0.946 View Reel $0.772 $0.889 $0.854 $0.844 $0.798 $0.772 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	HWQFN-24
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package PCAL6416APW,118 NXP Semiconductors 1: $1.70 24,263In Stock	Mfr. Part No. PCAL6416APW,118 Mouser Part No 771-PCAL6416APW118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	24,263In Stock	Cut Tape $1.70 $1.26 $1.13 $1.00 Reel $0.847 View $0.94 $0.904 $0.896 $0.798 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-24