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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 - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater PCA9517AD,118 NXP Semiconductors 1: $1.70 80,564In 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	80,564In Stock	Cut Tape $1.70 $1.26 $1.15 $1.02 Reel $0.882 View $0.96 $0.923 $0.916 $0.862 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: $1.32 69,293In 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	69,293In Stock	Cut Tape $1.32 $1.04 $0.888 $0.794 View Reel $0.678 $0.749 $0.723 $0.705 $0.678 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: $1.49 36,818In 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	36,818In Stock 35,000On Order On Order Ship Dates Mfr. No: PCA9517DP,118 Stock: 36,818 Can Dispatch Immediately On Order: 25,000 Expected 15/02/2027 5,000 Expected 05/07/2027 5,000 Expected 12/07/2027 Factory Lead Time: 27 Weeks	Cut Tape $1.49 $1.19 $1.03 $0.916 Reel $0.796 View $0.861 $0.828 $0.818 $0.788 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: $2.17 48,327In 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	48,327In Stock	Cut Tape $2.17 $1.71 $1.47 $1.32 Reel $1.20 View $1.25 $1.23 $1.17 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 33,806In Stock 24,000On Order	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	33,806In Stock 24,000On Order	Cut Tape $2.86 $2.14 $1.95 $1.75 View Reel $1.46 $1.66 $1.62 $1.54 $1.49 $1.46 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, High-Impedance I/O in TSSOP24 package PCA9535CPW,118 NXP Semiconductors 1: $2.55 12,937In Stock 7,500Expected 16/11/2026	Mfr. Part No. PCA9535CPW,118 Mouser Part No 771-PCA9535CPW118	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 TSSOP24 package	Datasheet	12,937In Stock 7,500Expected 16/11/2026	Cut Tape $2.55 $1.90 $1.74 $1.56 Reel $1.34 View $1.47 $1.43 $1.40 $1.30 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: $2.00 50,640In 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	50,640In Stock	Cut Tape $2.00 $1.49 $1.37 $1.22 Reel $1.03 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 24,886In Stock 18,000Expected 17/11/2026	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	24,886In Stock 18,000Expected 17/11/2026	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: $2.70 14,727In 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	14,727In Stock	Cut Tape $2.70 $2.00 $1.83 $1.65 Reel $1.41 View $1.56 $1.51 $1.48 $1.38 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 44,584In 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	44,584In Stock	Cut Tape $2.97 $2.21 $2.03 $1.82 $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: $2.30 13,886In Stock 10,000Expected 09/11/2026	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	13,886In Stock 10,000Expected 09/11/2026	Cut Tape $2.30 $1.71 $1.56 $1.39 Reel $1.20 View $1.32 $1.28 $1.25 $1.17 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: $2.14 32,232In 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	32,232In Stock	Cut Tape $2.14 $1.63 $1.50 $1.36 View Reel $1.16 $1.29 $1.26 $1.24 $1.16 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 I/O Expander with Interrupt in TSSOP24 package PCA9555PW,118 NXP Semiconductors 1: $2.33 44,849In Stock	Mfr. Part No. PCA9555PW,118 Mouser Part No 771-PCA9555PW-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in TSSOP24 package Learn More about NXP Semiconductors nxpinterface	Datasheet	44,849In Stock	Cut Tape $2.33 $1.88 $1.66 $1.51 Reel $1.29 View $1.44 $1.40 $1.34 $1.27 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-24
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 10,297In Stock 10,000Expected 23/02/2027	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	10,297In Stock 10,000Expected 23/02/2027	Cut Tape $3.05 $2.56 $2.21 $2.03 Reel $1.73 View $1.94 $1.91 $1.83 $1.70 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: $1.45 49,939In 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	49,939In Stock	Cut Tape $1.45 $1.07 $0.974 $0.869 View Reel $0.732 $0.84 $0.807 $0.799 $0.771 $0.732 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: $1.23 37,843In Stock 56,000Expected 04/01/2027	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	37,843In Stock 56,000Expected 04/01/2027	Cut Tape $1.23 $0.956 $0.866 $0.767 View Reel $0.628 $0.719 $0.691 $0.67 $0.66 $0.628 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: $1.42 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 $1.42 $1.06 $1.01 $0.894 Reel $0.756 View $0.84 $0.807 $0.799 $0.731 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: $1.61 76,403In Stock 54,000Expected 01/06/2027	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	76,403In Stock 54,000Expected 01/06/2027	Cut Tape $1.61 $1.18 $1.07 $0.945 View Reel $0.772 $0.888 $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: $1.66 24,195In 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	24,195In Stock	Cut Tape $1.66 $1.27 $1.10 $0.977 Reel $0.815 View $0.918 $0.882 $0.872 $0.812 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	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 Interrupt, Reset and Agile I/O in TSSOP16 package PCAL9538APWJ NXP Semiconductors 1: $2.11 16,660In Stock	Mfr. Part No. PCAL9538APWJ Mouser Part No 771-PCAL9538APWJ	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package	Datasheet	16,660In Stock	Cut Tape $2.11 $1.56 $1.48 $1.33 View Reel $1.14 $1.25 $1.21 $1.18 $1.14 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders			I2C, Serial	SMD/SMT	TSSOP-16
Interface - I/O Expanders 16 bit In/Out MCP23016-I/SS Microchip Technology 1: $2.27 4,066In Stock	Mfr. Part No. MCP23016-I/SS Mouser Part No 579-MCP23016-I/SS	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	4,066In Stock	$2.27 $2.14 $1.89 $1.88 $1.83	Min.: 1 Mult.: 1	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial	SMD/SMT	SSOP-28
Interface - Signal Buffers, Repeaters Interface I2C Hot Swappable PI6ULS5V9511AZWEX Diodes Incorporated 1: $1.27 3,580In Stock	Mfr. Part No. PI6ULS5V9511AZWEX Mouser Part No 729-PI6ULS5V9511AZWE	Diodes Incorporated	Interface - Signal Buffers, Repeaters Interface I2C Hot Swappable Learn More about Diodes Incorporated diodes pi6uls5v9511a buffers	Datasheet	3,580In Stock	Cut Tape $1.27 $0.915 $0.803 $0.731 Reel $0.657 View $0.707 $0.692 $0.677 $0.591 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Signal Buffers, Repeaters	Buffers	Hot Swappable	I2C	SMD/SMT	UDFN-8
Interface - Signal Buffers, Repeaters 2-Wire Bus Bufs w/ Hi N Margin LTC4313IMS8-3#PBF Analog Devices 1: $9.92 12,004In Stock 4,150On Order	Mfr. Part No. LTC4313IMS8-3#PBF Mouser Part No 584-LTC4313IMS8-3PBF	Analog Devices	Interface - Signal Buffers, Repeaters 2-Wire Bus Bufs w/ Hi N Margin	Datasheet	12,004In Stock 4,150On Order	$9.92 $7.98 $6.79 $6.56 View $6.23 $6.09 $6.05	Min.: 1 Mult.: 1	Signal Buffers, Repeaters	Buffers	Hot Swappable	2-Wire, I2C, SMBus	SMD/SMT	MSOP-8
Interface - I/O Expanders 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7300AAX+ Analog Devices / Maxim Integrated 1: $21.53 524In Stock	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	Datasheet	524In Stock	$21.53 $17.10 $16.37 $15.11 View $14.41 $14.15	Min.: 1 Mult.: 1	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial	SMD/SMT	SSOP-36
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311AWG+ Analog Devices / Maxim Integrated 1: $12.88 306In Stock	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	Datasheet	306In Stock	$12.88 $10.09 $9.39 $8.62 View $8.53 $7.73 $7.57 Quote	Min.: 1 Mult.: 1	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	SOIC-24