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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 Hot swappable level translating I2C-bus repeater PCA9508DP,118 NXP Semiconductors 1: $3.04 9,193On Order	Mfr. Part No. PCA9508DP,118 Mouser Part No 771-PCA9508DP118	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Hot swappable level translating I2C-bus repeater	Datasheet	9,193On Order On Order Ship Dates Mfr. No: PCA9508DP,118 Stock: 0 On Order: 1,693 Expected 22/12/2026 7,500 Expected 29/04/2027 Factory Lead Time: 27 Weeks	Cut Tape $3.04 $2.28 $2.02 $1.84 Reel $1.56 View $1.74 $1.70 $1.64 $1.53 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	I2C Bus	I2C	SMD/SMT	TSSOP-8
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555, High-Impedance I/O in HWQFN24 package PCA9535CHF,118 NXP Semiconductors 1: $2.56 11,191On Order	Mfr. Part No. PCA9535CHF,118 Mouser Part No 771-PCA9535CHF118	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 HWQFN24 package	Datasheet	11,191On Order On Order Ship Dates Mfr. No: PCA9535CHF,118 Stock: 0 On Order: 5,191 Expected 07/12/2026 6,000 Expected 24/12/2026 Factory Lead Time: 30 Weeks	Cut Tape $2.56 $1.90 $1.74 $1.56 View Reel $1.32 $1.47 $1.43 $1.32 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	HWQFN-24
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package PCA9575HF,118 NXP Semiconductors 1: $3.33 11,996Expected 17/01/2028	Mfr. Part No. PCA9575HF,118 Mouser Part No 771-PCA9575HF	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package	Datasheet	11,996Expected 17/01/2028	Cut Tape $3.33 $2.54 $2.30 $2.07 View Reel $1.77 $1.96 $1.93 $1.77 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 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package PCAL9538ABSHP NXP Semiconductors 1: $2.23 29,140Expected 10/05/2027	Mfr. Part No. PCAL9538ABSHP Mouser Part No 771-PCAL9538ABSHP	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package	Datasheet	29,140Expected 10/05/2027	Cut Tape $2.23 $1.65 $1.51 $1.36 View Reel $1.20 $1.30 $1.26 $1.24 $1.22 $1.20 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders			I2C, Serial	SMD/SMT	HVQFN-16
Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534PW PCA9534PWR Texas Instruments 1: $1.75 11,723On Order	Mfr. Part No. PCA9534PWR Mouser Part No 595-PCA9534PWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534PW	Datasheet	11,723On Order On Order Ship Dates Mfr. No: PCA9534PWR Stock: 0 On Order: 5,723 Expected 01/02/2027 6,000 Expected 18/03/2027 Factory Lead Time: 20 Weeks	Cut Tape $1.75 $1.28 $1.17 $1.04 Reel $0.875 View $0.975 $0.938 $0.934 $0.856 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 Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538PW PCA9538PWR Texas Instruments 1: $2.09 7,693On Order	Mfr. Part No. PCA9538PWR Mouser Part No 595-PCA9538PWR	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538PW	Datasheet	7,693On Order On Order Ship Dates Mfr. No: PCA9538PWR Stock: 0 On Order: 3,693 Expected 06/11/2026 4,000 Expected 16/11/2026 Factory Lead Time: 20 Weeks	Cut Tape $2.09 $1.54 $1.40 $1.25 Reel $1.07 View $1.18 $1.14 $1.08 $1.03 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander PCA9539RGER Texas Instruments 1: $2.28 8,143On Order	Mfr. Part No. PCA9539RGER Mouser Part No 595-PCA9539RGER	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander	Datasheet	8,143On Order On Order Ship Dates Mfr. No: PCA9539RGER Stock: 0 On Order: 2,143 Expected 04/02/2027 6,000 Expected 12/02/2027 Factory Lead Time: 20 Weeks	Cut Tape $2.28 $1.68 $1.54 $1.37 Reel $1.13 View $1.30 $1.26 $1.11 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 8B I2C and Lo w-Pwr I/O Expander TCA9534APWR Texas Instruments 1: $1.72 9,955On Order	Mfr. Part No. TCA9534APWR Mouser Part No 595-TCA9534APWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C and Lo w-Pwr I/O Expander	Datasheet	9,955On Order On Order Ship Dates Mfr. No: TCA9534APWR Stock: 0 On Order: 3,955 Expected 08/02/2027 6,000 Expected 22/02/2027 Factory Lead Time: 20 Weeks	Cut Tape $1.72 $1.27 $1.15 $1.03 Reel $0.863 View $0.961 $0.925 $0.92 $0.844 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders			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-TCA9534DWR TCA9534DWT Texas Instruments 1: $2.03 1In Stock	Mfr. Part No. TCA9534DWT Mouser Part No 595-TCA9534DWT	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534DWR	Datasheet	1In Stock	Cut Tape $2.03 $1.50 $1.37 $1.22 Reel $1.14 View $1.08 $0.977 $0.965 $0.946 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 TCA9535MRGER Texas Instruments 1: $2.04 5,990Expected 23/11/2026	Mfr. Part No. TCA9535MRGER Mouser Part No 595-TCA9535MRGER	Texas Instruments	Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp Learn More about Texas Instruments ti tca9535 expander	Datasheet	5,990Expected 23/11/2026	Cut Tape $2.04 $1.51 $1.38 $1.23 Reel $1.02 View $1.16 $1.12 $1.09 $0.997 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 Rem 8B I2C & SMBus L o-Pwr I/O Expander TCA9538PWR Texas Instruments 1: $2.03 9,512Expected 17/12/2026	Mfr. Part No. TCA9538PWR Mouser Part No 595-TCA9538PWR	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander	Datasheet	9,512Expected 17/12/2026	Cut Tape $2.03 $1.50 $1.36 $1.22 Reel $1.04 View $1.15 $1.11 $0.971 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders			I2C, Serial	SMD/SMT	TSSOP-16
Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9803DGKT TCA9803DGKR Texas Instruments 1: $0.92 24,769On Order	Mfr. Part No. TCA9803DGKR Mouser Part No 595-TCA9803DGKR	Texas Instruments	Interface - Signal Buffers, Repeaters 2-bit level-translat ing 400-kHz I2C/SMB A 595-TCA9803DGKT Learn More about Texas Instruments ti tca9803 buffer repeater	Datasheet	24,769On Order On Order Ship Dates Mfr. No: TCA9803DGKR Stock: 0 On Order: 12,269 Expected 11/12/2026 12,500 Expected 01/02/2027 Factory Lead Time: 20 Weeks	Cut Tape $0.92 $0.657 $0.618 $0.544 Reel $0.45 View $0.509 $0.487 $0.447 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Buffers	I2C Bus	I2C, SMBus	SMD/SMT	VSSOP-8
Interface - Signal Buffers, Repeaters Dual Supply Low power level translating I2C-bus/SMBus repeater PCA9509PDP,118 NXP Semiconductors 1: $1.94 2,274Expected 09/11/2026	Mfr. Part No. PCA9509PDP,118 Mouser Part No 771-PCA9509PDP,118	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	2,274Expected 09/11/2026	Cut Tape $1.94 Reel $1.08 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	I2C, SMBus	I2C, SMBus	SMD/SMT	TSSOP-8
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package PCA9538PW/Q900,118 NXP Semiconductors 1: $3.22 2,498Expected 29/10/2026	Mfr. Part No. PCA9538PW/Q900,118 Mouser Part No 771-PCA9538PW/Q90011	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package	Datasheet	2,498Expected 29/10/2026	Cut Tape $3.22 $2.40 $2.19 $1.97 $1.86 Reel $1.58 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	TSSOP-16
Interface - I/O Expanders PCA9555PW/SOT355/TSSOP24 PCA9555PWJ Nexperia 1: $1.76 2,452Expected 16/11/2026	Mfr. Part No. PCA9555PWJ Mouser Part No 771-PCA9555PWJ	Nexperia	Interface - I/O Expanders PCA9555PW/SOT355/TSSOP24	Datasheet	2,452Expected 16/11/2026	Cut Tape $1.76 $1.30 $1.18 $1.05 Reel $0.848 View $0.984 $0.947 $0.943 $0.84 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial	SMD/SMT	TSSOP-24
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in X2QFN16 package PCAL6408AEX1Z NXP Semiconductors 1: $1.52 14,967Expected 22/11/2027	Mfr. Part No. PCAL6408AEX1Z Mouser Part No 771-PCAL6408AEX1Z	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in X2QFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	14,967Expected 22/11/2027	Cut Tape $1.52 $1.17 $1.01 $0.896 View Reel $0.75 $0.842 $0.799 $0.75 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	X2QFN-16
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in X2QFN24 package PCAL6416AEX1Z NXP Semiconductors 1: $1.64 8,260Expected 14/01/2027	Mfr. Part No. PCAL6416AEX1Z Mouser Part No 841-PCAL6416AEX1Z	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in X2QFN24 package	Datasheet	8,260Expected 14/01/2027	Cut Tape $1.64 $1.27 $1.10 $0.977 View Reel $0.816 $0.918 $0.882 $0.872 $0.871 $0.816 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	X2QFN-24
Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CDWR PCF8575CDW Texas Instruments 1: $7.77 294Expected 08/02/2027	Mfr. Part No. PCF8575CDW Mouser Part No 595-PCF8575CDW	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CDWR	Datasheet	294Expected 08/02/2027	$7.77 $5.99 $5.53 $5.05 View $4.67 $4.53 $4.31	Min.: 1 Mult.: 1	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	SOIC-24
Interface - I/O Expanders PCA9535PW/SOT355/TSSOP24 PCA9535PWJ Nexperia 1: $1.82 1,199Expected 20/11/2026	Mfr. Part No. PCA9535PWJ Mouser Part No 771-PCA9535PWJ	Nexperia	Interface - I/O Expanders PCA9535PW/SOT355/TSSOP24	Datasheet	1,199Expected 20/11/2026	Cut Tape $1.82 $1.34 $1.21 $1.08 Reel $0.872 View $1.02 $0.984 $0.982 $0.863 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial	SMD/SMT	TSSOP-24
Interface - I/O Expanders 16 bit In/Out MCP23016T-I/SS Microchip Technology 2,100: $1.89 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. MCP23016T-I/SS Mouser Part No 579-MCP23016T-I/SS	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	Non-Stocked Lead-Time 7 Weeks	Reel $1.89	Min.: 2,100 Mult.: 2,100 : 2,100	I/O Expanders			I2C, Serial	SMD/SMT	SSOP-28
Interface - I/O Expanders Expandable 5-Ch I2C Hub A 595-PCA9518DBT A 595-PCA9518DBT PCA9518DBR Texas Instruments 2,000: $2.37 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PCA9518DBR Mouser Part No 595-PCA9518DBR	Texas Instruments	Interface - I/O Expanders Expandable 5-Ch I2C Hub A 595-PCA9518DBT A 595-PCA9518DBT	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $2.37	Min.: 2,000 Mult.: 2,000 : 2,000	I/O Expanders				SMD/SMT	SSOP-20
Interface - I/O Expanders Expandable 5-Ch I2C Hub PCA9518DBT Texas Instruments 1: $5.26 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PCA9518DBT Mouser Part No 595-PCA9518DBT	Texas Instruments	Interface - I/O Expanders Expandable 5-Ch I2C Hub	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape $5.26 $4.01 $3.70 $3.35 Reel $3.20 View $3.14 $3.04 $3.03 MouseReel Available	Min.: 1 Mult.: 1 : 250	I/O Expanders	I/O Expanders	I2C Hub		SMD/SMT	SSOP-20
Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander PCA9538DGVR Texas Instruments 1: $4.04 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PCA9538DGVR Mouser Part No 595-PCA9538DGVR	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape $4.04 $3.05 $2.80 $2.53 View Reel $2.22 $2.40 $2.38 $2.24 $2.22 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders			I2C, Serial, SMBus	SMD/SMT	TVSOP-16
Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CDB PCF8575CDBR Texas Instruments 1: $4.37 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PCF8575CDBR Mouser Part No 595-PCF8575CDBR	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CDB	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape $4.37 $4.25 $4.19 $4.16 Reel $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	SSOP-24
Interface - Signal Buffers, Repeaters Dual Bidir I2C Bus & SMBus Repeater A 59 A 595-TPS53219RGTT PCA9515APWR Texas Instruments 1: $4.11 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. PCA9515APWR Mouser Part No 595-PCA9515APWR NRND	Texas Instruments	Interface - Signal Buffers, Repeaters Dual Bidir I2C Bus & SMBus Repeater A 59 A 595-TPS53219RGTT	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape $4.11 $3.10 $2.85 $2.57 Reel $2.22 View $2.44 $2.42 $2.28 $2.20 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Signal Buffers, Repeaters	Repeaters	I2C, SMBus	I2C, SMBus	SMD/SMT	TSSOP-8