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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 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534ADWT TCA9534ADWR Texas Instruments 1: $1.72 167In Stock 10,000On Order	Mfr. Part No. TCA9534ADWR Mouser Part No 595-TCA9534ADWR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534ADWT	Datasheet	167In Stock 10,000On Order On Order Ship Dates Mfr. No: TCA9534ADWR Stock: 167 Can Dispatch Immediately On Order: 4,000 Expected 21/12/2026 6,000 Expected 15/03/2027 Factory Lead Time: 20 Weeks	Cut Tape $1.72 $1.27 $1.15 $1.03 Reel $0.862 View $0.961 $0.925 $0.92 $0.843 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	SOIC-16
Interface - I/O Expanders Remote 8-Bit I2C and Low-Pwr I/O Expande A 595-TCA9534ADWR TCA9534ADWT Texas Instruments 1: $2.21 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 $2.21 $1.64 $1.49 $1.33 Reel $1.29 View $1.18 $1.15 $1.12 MouseReel Available	Min.: 1 Mult.: 1 : 250	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	SOIC-16
Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp A 595-TCA9535DBR TCA9535DBT Texas Instruments 1: $2.62 429In 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	429In Stock	Cut Tape $2.62 $1.95 $1.78 $1.60 Reel $1.50 View $1.42 $1.36 $1.34 $1.32 MouseReel Available	Min.: 1 Mult.: 1 : 250	I/O Expanders	I/O Expanders	I2C, SMBus	I2C, Serial, SMBus	SMD/SMT	SSOP-24
Interface - I/O Expanders Remt 16Bit I2C SMBus Lo-Pwr I/O Expndr TCA9535PWR Texas Instruments 1: $1.95 151In 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	151In Stock 32,000On Order On Order Ship Dates Mfr. No: TCA9535PWR Stock: 151 Can Dispatch Immediately On Order: 6,000 Expected 13/11/2026 12,000 Expected 19/11/2026 14,000 Expected 28/01/2027 Factory Lead Time: 20 Weeks	Cut Tape $1.95 $1.43 $1.30 $1.16 Reel $0.982 View $1.09 $1.05 $0.96 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan TCA9538DBR Texas Instruments 1: $2.08 336In Stock 4,000Expected 19/11/2026	Mfr. Part No. TCA9538DBR Mouser Part No 595-TCA9538DBR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan	Datasheet	336In Stock 4,000Expected 19/11/2026	Cut Tape $2.08 $1.57 $1.44 $1.30 Reel $1.16 View $1.23 $1.22 $1.13 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders	I2C, SMBus	I2C, Serial	SMD/SMT	SSOP-16
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan TCA9554ADBR Texas Instruments 1: $1.51 1,067In Stock 2,000Expected 19/11/2026	Mfr. Part No. TCA9554ADBR Mouser Part No 595-TCA9554ADBR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	1,067In Stock 2,000Expected 19/11/2026	Cut Tape $1.51 $1.10 $0.996 $0.884 Reel $0.739 View $0.831 $0.799 $0.772 $0.723 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	SSOP-16
Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander TCA9554APWR Texas Instruments 1: $1.37 307In Stock 10,000Expected 19/11/2026	Mfr. Part No. TCA9554APWR Mouser Part No 595-TCA9554APWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	307In Stock 10,000Expected 19/11/2026	Cut Tape $1.37 $1.10 $0.996 $0.884 Reel $0.739 View $0.831 $0.799 $0.79 $0.723 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWR TCA9554DWT Texas Instruments 1: $2.52 35In Stock 500Expected 19/11/2026	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	35In Stock 500Expected 19/11/2026	Cut Tape $2.52 $1.87 $1.70 $1.52 Reel $1.44 View $1.39 $1.33 $1.32 $1.27 MouseReel Available	Min.: 1 Mult.: 1 : 250	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	SOIC-16
Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9800DGKR TCA9800DGKT Texas Instruments 1: $1.39 380In Stock 750Expected 19/11/2026	Mfr. Part No. TCA9800DGKT Mouser Part No 595-TCA9800DGKT	Texas Instruments	Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9800DGKR	Datasheet	380In Stock 750Expected 19/11/2026	Cut Tape $1.39 $1.02 $0.918 $0.815 Reel $0.764 View $0.719 $0.693 $0.683 MouseReel Available	Min.: 1 Mult.: 1 : 250	Signal Buffers, Repeaters	Repeaters	I2C Bus	I2C, SMBus	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9801DGKT TCA9801DGKR Texas Instruments 1: $1.24 65In Stock 5,000Expected 24/12/2026	Mfr. Part No. TCA9801DGKR Mouser Part No 595-TCA9801DGKR	Texas Instruments	Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9801DGKT Learn More about Texas Instruments ti tca9801 buffer repeater	Datasheet	65In Stock 5,000Expected 24/12/2026	Cut Tape $1.24 $0.896 $0.81 $0.716 Reel $0.598 View $0.671 $0.647 $0.631 $0.583 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Buffers	I2C Bus	I2C, SMBus	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters LevelTranslating I2C Bus Buffer/Repeater A 595-TCA9801DGKR TCA9801DGKT Texas Instruments 1: $1.39 92In Stock 2,250Expected 19/11/2026	Mfr. Part No. TCA9801DGKT Mouser Part No 595-TCA9801DGKT	Texas Instruments	Interface - Signal Buffers, Repeaters LevelTranslating I2C Bus Buffer/Repeater A 595-TCA9801DGKR Learn More about Texas Instruments ti tca9801 buffer repeater	Datasheet	92In Stock 2,250Expected 19/11/2026	Cut Tape $1.39 $1.02 $0.918 $0.815 Reel $0.764 View $0.691 $0.668 $0.652 $0.644 MouseReel Available	Min.: 1 Mult.: 1 : 250	Signal Buffers, Repeaters	Buffers	I2C Bus	I2C, SMBus	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters LevelTranslating I2C Bus Buffer/Repeater A 595-TCA9803DGKR TCA9803DGKT Texas Instruments 1: $1.12 7In Stock	Mfr. Part No. TCA9803DGKT Mouser Part No 595-TCA9803DGKT	Texas Instruments	Interface - Signal Buffers, Repeaters LevelTranslating I2C Bus Buffer/Repeater A 595-TCA9803DGKR Learn More about Texas Instruments ti tca9803 buffer repeater	Datasheet	7In Stock	Cut Tape $1.12 $0.869 $0.787 $0.696 Reel $0.651 View $0.612 $0.589 $0.581 MouseReel Available	Min.: 1 Mult.: 1 : 250	Signal Buffers, Repeaters	Buffers	I2C Bus	I2C, SMBus	SMD/SMT	VSSOP-8
Interface - I/O Expanders Interface IO Expander PI4IOE5V6416ZDEX Diodes Incorporated 1: $1.61 1,488In Stock 84,000On Order	Mfr. Part No. PI4IOE5V6416ZDEX Mouser Part No 729-PI4IOE5V6416ZDEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander	Datasheet	1,488In Stock 84,000On Order On Order Ship Dates Mfr. No: PI4IOE5V6416ZDEX Stock: 1,488 Can Dispatch Immediately On Order: 21,000 Expected 26/05/2027 28,000 Expected 06/03/2028 35,000 Expected 31/03/2028 Factory Lead Time: 48 Weeks	Cut Tape $1.61 $1.17 $0.993 $0.939 Reel $0.696 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,500 : 3,500	I/O Expanders			I2C, Serial	SMD/SMT	TQFN-24
Interface - I/O Expanders 16-bit I2C and SMBus low power I/O port PI4IOE5V9539LE Diodes Incorporated 1: $1.45 41In Stock	Mfr. Part No. PI4IOE5V9539LE Mouser Part No 729-PI4IOE5V9539LE	Diodes Incorporated	Interface - I/O Expanders 16-bit I2C and SMBus low power I/O port Learn More about Diodes Incorporated pericom io expanders	Datasheet	41In Stock	$1.45 $1.05 $0.905 $0.787 View $0.764 $0.749 $0.734 $0.725 $0.718	Min.: 1 Mult.: 1	I/O Expanders	I/O Expanders	I2C, SMBus	I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - I/O Expanders 16-bit I2C and SMBus low power I/O port PI4IOE5V9539LEX Diodes Incorporated 1: $1.45 237In Stock 3,000Expected 08/12/2027	Mfr. Part No. PI4IOE5V9539LEX Mouser Part No 729-PI4IOE5V9539LEX	Diodes Incorporated	Interface - I/O Expanders 16-bit I2C and SMBus low power I/O port Learn More about Diodes Incorporated pericom io expanders	Datasheet	237In Stock 3,000Expected 08/12/2027	Cut Tape $1.45 $1.05 $0.919 $0.838 View Reel $0.667 $0.81 $0.793 $0.775 $0.667	Min.: 1 Mult.: 1 : 3,000	I/O Expanders	I/O Expanders	I2C, SMBus	I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - I/O Expanders 8-bit I2C and SMBus IO Port PI4IOE5V9554ALEX Diodes Incorporated 1: $1.26 1,657In Stock 2,500Expected 20/10/2027	Mfr. Part No. PI4IOE5V9554ALEX Mouser Part No 729-PI4IOE5V9554ALEX	Diodes Incorporated	Interface - I/O Expanders 8-bit I2C and SMBus IO Port Learn More about Diodes Incorporated pericom io expanders	Datasheet	1,657In Stock 2,500Expected 20/10/2027	Cut Tape $1.26 $0.905 $0.792 $0.72 Reel $0.72 MouseReel Available	Min.: 1 Mult.: 1 Max.: 130 : 2,500	I/O Expanders	I/O Expanders	I2C, SMBus	I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 8-bit I2C and SMBus IO Port PI4IOE5V9554LE Diodes Incorporated 1: $1.35 138In Stock	Mfr. Part No. PI4IOE5V9554LE Mouser Part No 729-PI4IOE5V9554LE	Diodes Incorporated	Interface - I/O Expanders 8-bit I2C and SMBus IO Port Learn More about Diodes Incorporated pericom io expanders	Datasheet	138In Stock	$1.35 $0.975 $0.868 $0.842 View $0.73 $0.70 $0.669 $0.65 $0.635	Min.: 1 Mult.: 1	I/O Expanders	I/O Expanders	I2C, SMBus	I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 8-bit I2C and SMBus IO Port PI4IOE5V9554LEX Diodes Incorporated 1: $1.36 2,303In Stock 2,500Expected 16/04/2027	Mfr. Part No. PI4IOE5V9554LEX Mouser Part No 729-PI4IOE5V9554LEX	Diodes Incorporated	Interface - I/O Expanders 8-bit I2C and SMBus IO Port Learn More about Diodes Incorporated pericom io expanders	Datasheet	2,303In Stock 2,500Expected 16/04/2027	Cut Tape $1.36 $0.978 $0.859 $0.783 $0.757 Reel $0.757	Min.: 1 Mult.: 1 Max.: 460 : 2,500	I/O Expanders	I/O Expanders	I2C, SMBus	I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 16-bit I2C-bus and SMBus I/O port PI4IOE5V9555ZDEX Diodes Incorporated 1: $1.65 1,933In Stock 7,000Expected 18/01/2027	Mfr. Part No. PI4IOE5V9555ZDEX Mouser Part No 729-PI4IOE5V9555ZDEX	Diodes Incorporated	Interface - I/O Expanders 16-bit I2C-bus and SMBus I/O port Learn More about Diodes Incorporated pericom io expanders	Datasheet	1,933In Stock 7,000Expected 18/01/2027	Cut Tape $1.65 $1.21 $1.03 $0.968 Reel $0.968 MouseReel Available	Min.: 1 Mult.: 1 Max.: 620 : 3,500	I/O Expanders	I/O Expanders	I2C, SMBus	I2C, Serial, SMBus	SMD/SMT	TQFN-24
Interface - I/O Expanders NCA9539PW/SOT355/TSSOP24 NCA9539PWJ Nexperia 1: $1.45 194In Stock 2,500Expected 09/04/2027	Mfr. Part No. NCA9539PWJ Mouser Part No 771-NCA9539PWJ	Nexperia	Interface - I/O Expanders NCA9539PW/SOT355/TSSOP24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	194In Stock 2,500Expected 09/04/2027	Cut Tape $1.45 $1.06 $0.955 $0.846 Reel $0.678 View $0.794 $0.762 $0.741 $0.648 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I2C and SMBus I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus/SMBus repeater PCA9509DP,118 NXP Semiconductors 1: $1.98 106In Stock 5,000Expected 09/11/2026	Mfr. Part No. PCA9509DP,118 Mouser Part No 771-PCA9509DP-T	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus/SMBus repeater Learn More about NXP Semiconductors nxp pca9509 repeater	Datasheet	106In Stock 5,000Expected 09/11/2026	Cut Tape $1.98 $1.46 $1.33 $1.19 Reel $1.11 View $1.14 $1.12 $1.09 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 Low power level translating I2C-bus/SMBus repeater PCA9509PGM,125 NXP Semiconductors 1: $1.20 1,497In Stock 8,000Expected 14/01/2027	Mfr. Part No. PCA9509PGM,125 Mouser Part No 771-PCA9509PGM,125	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Low power level translating I2C-bus/SMBus repeater Learn More about NXP Semiconductors nxp pca9509 repeater	Datasheet	1,497In Stock 8,000Expected 14/01/2027	Cut Tape $1.20 $0.861 $0.775 $0.682 View Reel $0.55 $0.637 $0.61 $0.591 $0.565 $0.55 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Signal Buffers, Repeaters	Repeaters	I2C, SMBus	I2C, SMBus	SMD/SMT	XQFN-8
Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater PCA9517ATP,147 NXP Semiconductors 1: $1.79 21In Stock 84,000On Order	Mfr. Part No. PCA9517ATP,147 Mouser Part No 771-PCA9517ATP147	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Level translating I2C-bus repeater	Datasheet	21In Stock 84,000On Order On Order Ship Dates Mfr. No: PCA9517ATP,147 Stock: 21 Can Dispatch Immediately On Order: 44,000 Expected 28/12/2026 40,000 Expected 04/01/2027 Factory Lead Time: 21 Weeks	Cut Tape $1.79 $1.31 $1.19 $1.06 View Reel $0.872 $0.994 $0.957 $0.952 $0.893 $0.872 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Signal Buffers, Repeaters	Repeaters	Voltage Level Translators	I2C	SMD/SMT	HWSON-8
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in HVQFN16 package PCA9538BS,118 NXP Semiconductors 1: $2.66 103In Stock 24,000On Order	Mfr. Part No. PCA9538BS,118 Mouser Part No 771-PCA9538BS-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in HVQFN16 package	Datasheet	103In Stock 24,000On Order On Order Ship Dates Mfr. No: PCA9538BS,118 Stock: 103 Can Dispatch Immediately On Order: 12,000 Expected 02/11/2026 12,000 Expected 09/02/2027 Factory Lead Time: 30 Weeks	Cut Tape $2.66 $2.02 $1.74 $1.57 View Reel $1.33 $1.50 $1.45 $1.39 $1.38 $1.33 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	HVQFN-16
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package PCA9539PW,118 NXP Semiconductors 1: $2.69 108In Stock 17,500On Order	Mfr. Part No. PCA9539PW,118 Mouser Part No 771-PCA9539PW-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package	Datasheet	108In Stock 17,500On Order On Order Ship Dates Mfr. No: PCA9539PW,118 Stock: 108 Can Dispatch Immediately On Order: 7,500 Expected 07/06/2027 10,000 Expected 14/06/2027 Factory Lead Time: 30 Weeks	Cut Tape $2.69 $2.01 $1.83 $1.64 View Reel $1.33 $1.47 $1.43 $1.37 $1.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	TSSOP-24