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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 (GBP) 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 Hot Swappable 2-Wire Bus Buffer TCA4311ADR Texas Instruments 1: £2.59 1,639In Stock	Mfr. Part No. TCA4311ADR Mouser Part No 595-TCA4311ADR	Texas Instruments	Interface - Signal Buffers, Repeaters Hot Swappable 2-Wire Bus Buffer	Datasheet	1,639In Stock	Cut Tape £2.59 £1.96 £1.79 £1.62 Reel £1.38 View £1.53 £1.51 £1.47 £1.36 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Buffers		2-Wire Bus	SMD/SMT	SOIC-8
Interface - I/O Expanders Lo-Vltg 8B I2C & SMB us I/O Expander TCA6408APWR Texas Instruments 1: £1.36 5,061In Stock	Mfr. Part No. TCA6408APWR Mouser Part No 595-TCA6408APWR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 8B I2C & SMB us I/O Expander	Datasheet	5,061In Stock	Cut Tape £1.36 £0.995 £0.908 £0.811 Reel £0.684 View £0.766 £0.732 £0.728 £0.668 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders Lo-Vltg 8B I2C & SMB us I/O Expander TCA6408ARGTR Texas Instruments 1: £1.25 4,622In Stock 27,000Expected 21/01/2027	Mfr. Part No. TCA6408ARGTR Mouser Part No 595-TCA6408ARGTR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 8B I2C & SMB us I/O Expander	Datasheet	4,622In Stock 27,000Expected 21/01/2027	Cut Tape £1.25 £0.917 £0.834 £0.737 View Reel £0.618 £0.693 £0.667 £0.663 £0.618 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	VQFN-16
Interface - Signal Buffers, Repeaters Lvl Translating I2C Bus Repeater TCA9509DGKR Texas Instruments 1: £1.19 13,754In Stock	Mfr. Part No. TCA9509DGKR Mouser Part No 595-TCA9509DGKR	Texas Instruments	Interface - Signal Buffers, Repeaters Lvl Translating I2C Bus Repeater Learn More about Texas Instruments ti tca9509	Datasheet	13,754In Stock	Cut Tape £1.19 £0.863 £0.788 £0.695 View Reel £0.595 £0.653 £0.629 £0.615 £0.595 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters		I2C	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters Level Translating I2 C Bus Repeater TCA9509RVHR Texas Instruments 1: £1.30 2,043In Stock 5,000Expected 30/11/2026	Mfr. Part No. TCA9509RVHR Mouser Part No 595-TCA9509RVHR	Texas Instruments	Interface - Signal Buffers, Repeaters Level Translating I2 C Bus Repeater Learn More about Texas Instruments ti tca9509	Datasheet	2,043In Stock 5,000Expected 30/11/2026	Cut Tape £1.30 £0.952 £0.871 £0.773 View Reel £0.625 £0.739 £0.711 £0.707 £0.67 £0.625 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	Signal Buffers, Repeaters	Repeaters	I2C Bus	I2C, SMBus	SMD/SMT	X2QFN-8
Interface - Signal Buffers, Repeaters 2-bit bidirectional 2.3- to 5.5-V hot sw TCA9511ADGKR Texas Instruments 1: £1.64 5,648In Stock 7,500Expected 23/11/2026	Mfr. Part No. TCA9511ADGKR Mouser Part No 595-TCA9511ADGKR	Texas Instruments	Interface - Signal Buffers, Repeaters 2-bit bidirectional 2.3- to 5.5-V hot sw Learn More about Texas Instruments ti tca9511a buffer	Datasheet	5,648In Stock 7,500Expected 23/11/2026	Cut Tape £1.64 £1.20 £1.10 £0.986 Reel £0.841 View £0.934 £0.899 £0.826 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Buffers	Hot Swappable	I2C, SMBus	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters Level-Translting I2C Bus Repeater TCA9517ADGKR Texas Instruments 1: £1.01 13,248In Stock 40,000On Order	Mfr. Part No. TCA9517ADGKR Mouser Part No 595-TCA9517ADGKR	Texas Instruments	Interface - Signal Buffers, Repeaters Level-Translting I2C Bus Repeater	Datasheet	13,248In Stock 40,000On Order On Order Ship Dates Mfr. No: TCA9517ADGKR Stock: 13,248 Can Dispatch Immediately On Order: 17,500 Expected 17/12/2026 22,500 Expected 15/01/2027 Factory Lead Time: 26 Weeks	Cut Tape £1.01 £0.731 £0.662 £0.585 Reel £0.498 View £0.548 £0.54 £0.513 £0.487 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters		I2C, SMBus	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters Automotive 2-bit lev el-translating 400- TCA9517DGKRQ1 Texas Instruments 1: £1.53 12,113In Stock	Mfr. Part No. TCA9517DGKRQ1 Mouser Part No 595-TCA9517DGKRQ1	Texas Instruments	Interface - Signal Buffers, Repeaters Automotive 2-bit lev el-translating 400- Learn More about Texas Instruments ti tca9517 repeater	Datasheet	12,113In Stock	Cut Tape £1.53 £1.13 £1.04 £0.925 Reel £0.78 View £0.871 £0.849 £0.766 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	I2C Bus	I2C	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters Level-Translting I2C Bus Repeater TCA9517DR Texas Instruments 1: £1.02 13,681In Stock	Mfr. Part No. TCA9517DR Mouser Part No 595-TCA9517DR	Texas Instruments	Interface - Signal Buffers, Repeaters Level-Translting I2C Bus Repeater Learn More about Texas Instruments ti tca9517 repeater	Datasheet	13,681In Stock	Cut Tape £1.02 £0.811 £0.731 £0.648 Reel £0.545 View £0.608 £0.597 £0.533 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	TCA	I2C, SMBus	SMD/SMT	SOIC-8
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534DWT TCA9534DWR Texas Instruments 1: £1.30 1,984In Stock 4,000Expected 20/05/2027	Mfr. Part No. TCA9534DWR Mouser Part No 595-TCA9534DWR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534DWT	Datasheet	1,984In Stock 4,000Expected 20/05/2027	Cut Tape £1.30 £0.952 £0.871 £0.773 View Reel £0.612 £0.725 £0.721 £0.612 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 8B I2C and Lo w-Pwr I/O Expander TCA9534PWR Texas Instruments 1: £1.30 15,503In Stock	Mfr. Part No. TCA9534PWR Mouser Part No 595-TCA9534PWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C and Lo w-Pwr I/O Expander	Datasheet	15,503In Stock	Cut Tape £1.30 £0.952 £0.871 £0.773 Reel £0.65 View £0.724 £0.697 £0.693 £0.636 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders		I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders Remote 16bit I2C LP I/O Expander A 595-T A 595-TCA9535DBT TCA9535DBR Texas Instruments 1: £1.53 2,006In Stock	Mfr. Part No. TCA9535DBR Mouser Part No 595-TCA9535DBR	Texas Instruments	Interface - I/O Expanders Remote 16bit I2C LP I/O Expander A 595-T A 595-TCA9535DBT Learn More about Texas Instruments ti tca9535 expander	Datasheet	2,006In Stock	Cut Tape £1.53 £1.13 £1.04 £0.925 Reel £0.78 View £0.871 £0.841 £0.818 £0.751 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders		I2C, Serial, SMBus	SMD/SMT	SSOP-24
Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander TCA9539PWR Texas Instruments 1: £1.47 8,149In Stock 14,000Expected 01/03/2027	Mfr. Part No. TCA9539PWR Mouser Part No 595-TCA9539PWR	Texas Instruments	Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander	Datasheet	8,149In Stock 14,000Expected 01/03/2027	Cut Tape £1.47 £1.08 £0.986 £0.882 Reel £0.743 View £0.826 £0.796 £0.726 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - I/O Expanders Remote 16bit I2C and SMBux TCA9539RGER Texas Instruments 1: £2.01 7,651In Stock	Mfr. Part No. TCA9539RGER Mouser Part No 595-TCA9539RGER	Texas Instruments	Interface - I/O Expanders Remote 16bit I2C and SMBux	Datasheet	7,651In Stock	Cut Tape £2.01 £1.50 £1.37 £1.23 Reel £1.07 View £1.16 £1.05 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	VQFN-24
Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander TCA9554ADBQR Texas Instruments 1: £1.20 3,830In Stock	Mfr. Part No. TCA9554ADBQR Mouser Part No 595-TCA9554ADBQR	Texas Instruments	Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	3,830In Stock	Cut Tape £1.20 £0.882 £0.803 £0.709 Reel £0.609 View £0.667 £0.641 £0.636 £0.582 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	SSOP-16
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan TCA9554DBR Texas Instruments 1: £1.42 2,019In Stock	Mfr. Part No. TCA9554DBR Mouser Part No 595-TCA9554DBR	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	2,019In Stock	Cut Tape £1.42 £1.05 £0.952 £0.849 Reel £0.737 View £0.803 £0.773 £0.766 £0.702 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	SSOP-16
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWT TCA9554DWR Texas Instruments 1: £1.33 5,446In Stock	Mfr. Part No. TCA9554DWR Mouser Part No 595-TCA9554DWR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWT Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	5,446In Stock	Cut Tape £1.33 £0.978 £0.882 £0.788 View Reel £0.65 £0.738 £0.711 £0.705 £0.65 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-B I2C & SM Bus I/O Expander TCA9554PWR Texas Instruments 1: £1.31 11,238In Stock	Mfr. Part No. TCA9554PWR Mouser Part No 595-TCA9554PWR	Texas Instruments	Interface - I/O Expanders Remote 8-B I2C & SM Bus I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	11,238In Stock	Cut Tape £1.31 £0.952 £0.863 £0.766 Reel £0.642 View £0.722 £0.694 £0.685 £0.628 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 1.65 to 5.5V 16bit I /O Expander A 595-T A 595-TCA9555DBT TCA9555DBR Texas Instruments 1: £1.69 3,338In Stock	Mfr. Part No. TCA9555DBR Mouser Part No 595-TCA9555DBR	Texas Instruments	Interface - I/O Expanders 1.65 to 5.5V 16bit I /O Expander A 595-T A 595-TCA9555DBT Learn More about Texas Instruments ti tca9555 io expander	Datasheet	3,338In Stock	Cut Tape £1.69 £1.26 £1.14 £1.02 Reel £0.89 View £0.96 £0.934 £0.917 £0.849 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders		I2C, Serial, SMBus	SMD/SMT	SSOP-24
Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9800DGKT TCA9800DGKR Texas Instruments 1: £0.863 6,035In Stock 7,500Expected 23/11/2026	Mfr. Part No. TCA9800DGKR Mouser Part No 595-TCA9800DGKR	Texas Instruments	Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9800DGKT	Datasheet	6,035In Stock 7,500Expected 23/11/2026	Cut Tape £0.863 £0.631 £0.564 £0.515 View Reel £0.457 £0.483 £0.468 £0.462 £0.457 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	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-TCA9802DGKT TCA9802DGKR Texas Instruments 1: £0.89 8,513In Stock 12,500Expected 17/02/2027	Mfr. Part No. TCA9802DGKR Mouser Part No 595-TCA9802DGKR	Texas Instruments	Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9802DGKT Learn More about Texas Instruments ti tca9802 buffer repeater	Datasheet	8,513In Stock 12,500Expected 17/02/2027	Cut Tape £0.89 £0.64 £0.576 £0.507 View Reel £0.429 £0.474 £0.458 £0.439 £0.429 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Buffers	I2C Bus	I2C, SMBus	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9802DGKR TCA9802DGKT Texas Instruments 1: £0.995 5,423In Stock	Mfr. Part No. TCA9802DGKT Mouser Part No 595-TCA9802DGKT	Texas Instruments	Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9802DGKR Learn More about Texas Instruments ti tca9802 buffer repeater	Datasheet	5,423In Stock	Cut Tape £0.995 £0.718 £0.65 £0.576 Reel £0.54 £0.514 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 TSSOP-24 T&R 3K PI4IOE5V6416Q2LEX Diodes Incorporated 1: £1.75 2,298In Stock	Mfr. Part No. PI4IOE5V6416Q2LEX Mouser Part No 621-I4IOE5V6416Q2LEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander TSSOP-24 T&R 3K Learn More about Diodes Incorporated diodes pi4ioe5v6416q io expander	Datasheet	2,298In Stock	Cut Tape £1.75 £1.30 £1.15 £1.06 View Reel £0.882 £1.03 £1.01 £0.995 £0.882 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	I/O Expanders			I2C, Serial	SMD/SMT	TSSOP-24
Interface - I/O Expanders Interface IO Expander W-QFN3030-16 T&R 3.5K PI4IOE5V9554ZHEX Diodes Incorporated 1: £0.834 8,729In Stock 12,403On Order	Mfr. Part No. PI4IOE5V9554ZHEX Mouser Part No 621-PI4IOE5V9554ZHEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander W-QFN3030-16 T&R 3.5K Learn More about Diodes Incorporated diodes pi4ioe5v9554 8 bit expander	Datasheet	8,729In Stock 12,403On Order On Order Ship Dates Mfr. No: PI4IOE5V9554ZHEX Stock: 8,729 Can Dispatch Immediately On Order: 1,903 Pending 10,500 Expected 25/12/2026 Factory Lead Time: 48 Weeks	Cut Tape £0.834 £0.602 £0.542 £0.477 View Reel £0.395 £0.446 £0.426 £0.413 £0.395	Min.: 1 Mult.: 1 Max.: 3,500 : 3,500	I/O Expanders	I/O Expanders	I2C-Bus/SMBus	I2C, Serial, SMBus	SMD/SMT	TQFN-16
Interface - I/O Expanders I2C/SMBUS Expander 16B,w/Int CAT9555YI-T2 onsemi 1: £1.15 16,170In Stock	Mfr. Part No. CAT9555YI-T2 Mouser Part No 698-CAT9555YI-T2	onsemi	Interface - I/O Expanders I2C/SMBUS Expander 16B,w/Int	Datasheet	16,170In Stock	Cut Tape £1.15 £0.841 £0.766 £0.674 View Reel £0.523 £0.633 £0.616 £0.523 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders		I2C, SMBus	I2C, Serial, SMBus	SMD/SMT	TSSOP-24