I2C, Serial – Mouser United Kingdom

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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.
Interface - I/O Expanders Interface IO Expander W-QFN5050-32 T&R 2.5K PI4IOE5V6524ZHEX Diodes Incorporated 1: £1.62 3,164In Stock 5,000Expected 14/04/2028	Mfr. Part No. PI4IOE5V6524ZHEX Mouser Part No 621-PI4IOE5V6524ZHEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander W-QFN5050-32 T&R 2.5K Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander		3,164In Stock 5,000Expected 14/04/2028	Cut Tape £1.62 £1.20 £1.08 £0.978 £0.917 Reel £0.917 MouseReel Available	Min.: 1 Mult.: 1 Max.: 320 : 2,500
Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN24 package PCAL9714HNMP NXP Semiconductors 1: £1.12 9,577In Stock	Mfr. Part No. PCAL9714HNMP Mouser Part No 771-PCAL9714HNMP	NXP Semiconductors	Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN24 package Learn More about NXP Semiconductors nxp pcal9714 expanders	Datasheet	9,577In Stock	Cut Tape £1.12 £0.818 £0.74 £0.657 View Reel £0.538 £0.617 £0.593 £0.587 £0.566 £0.538	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN24 package PCAL9714HN/Q900MP NXP Semiconductors 1: £1.24 6,998In Stock	Mfr. Part No. PCAL9714HN/Q900MP Mouser Part No 771-PCAL9714HNQ900MP	NXP Semiconductors	Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN24 package Learn More about NXP Semiconductors nxp pcal9714 expanders	Datasheet	6,998In Stock	Cut Tape £1.24 £0.934 £0.849 £0.759 View Reel £0.646 £0.715 £0.691 £0.688 £0.668 £0.646	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017-E/ML Microchip Technology 1: £1.42 42,945In Stock	Mfr. Part No. MCP23017-E/ML Mouser Part No 579-MCP23017-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	42,945In Stock	£1.42 £1.20 £1.08	Min.: 1 Mult.: 1
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017-E/SO Microchip Technology 1: £1.21 34,392In Stock	Mfr. Part No. MCP23017-E/SO Mouser Part No 579-MCP23017-E/SO	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	34,392In Stock	£1.21 £1.01 £0.934	Min.: 1 Mult.: 1
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017-E/SP Microchip Technology 1: £1.27 11,244In Stock	Mfr. Part No. MCP23017-E/SP Mouser Part No 579-MCP23017-E/SP	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	11,244In Stock	£1.27 £1.05 £0.96	Min.: 1 Mult.: 1
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017-E/SS Microchip Technology 1: £1.27 21,508In Stock	Mfr. Part No. MCP23017-E/SS Mouser Part No 579-MCP23017-E/SS	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	21,508In Stock	£1.27 £1.05 £0.96	Min.: 1 Mult.: 1
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017T-E/ML Microchip Technology 1: £1.42 16,910In Stock	Mfr. Part No. MCP23017T-E/ML Mouser Part No 579-MCP23017T-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	16,910In Stock	Cut Tape £1.42 £1.20 Reel £1.08 MouseReel Available	Min.: 1 Mult.: 1 : 1,600
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017T-E/SO Microchip Technology 1: £1.21 22,003In Stock	Mfr. Part No. MCP23017T-E/SO Mouser Part No 579-MCP23017T-E/SO	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	22,003In Stock	Cut Tape £1.21 £1.01 Reel £0.934 MouseReel Available	Min.: 1 Mult.: 1 : 1,600
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017T-E/SS Microchip Technology 1: £1.27 42,941In Stock	Mfr. Part No. MCP23017T-E/SS Mouser Part No 579-MCP23017T-E/SS	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	42,941In Stock	Cut Tape £1.27 £1.05 Reel £0.96 MouseReel Available	Min.: 1 Mult.: 1 : 2,100
Interface - I/O Expanders 8bit I/O Expndr PCF8574N Texas Instruments 1: £2.23 10,328In Stock	Mfr. Part No. PCF8574N Mouser Part No 595-PCF8574N	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr	Datasheet	10,328In Stock	£2.23 £1.68 £1.50 £1.34 View £1.30 £1.26 £1.20 £1.17 £1.15	Min.: 1 Mult.: 1
Digital Signal Processors & Controllers - DSP, DSC Delfino Micrcntrlr TMS320F28335PTPQ Texas Instruments 1: £44.88 509In Stock 480Expected 23/11/2026	Mfr. Part No. TMS320F28335PTPQ Mouser Part No 595-TMS320F28335PTPQ	Texas Instruments	Digital Signal Processors & Controllers - DSP, DSC Delfino Micrcntrlr Learn More about Texas Instruments ti tms320f2833 dscs	Datasheet	509In Stock 480Expected 23/11/2026	£44.88 £40.43 £33.60 £33.06 View £32.62 Quote	Min.: 1 Mult.: 1
Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset in TSSOP56 package PCA9505DGGY NXP Semiconductors 1: £5.32 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 £5.32 £4.07 £3.76 £3.42 £3.40 Reel £2.88 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
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: £6.78 12,192In Stock 8,000Expected 22/03/2027	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	12,192In Stock 8,000Expected 22/03/2027	Cut Tape £6.78 £5.27 £4.90 £4.48 View Reel £3.94 £4.33 £4.26 £4.21 £3.94 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Interface - I/O Expanders 4-bit I2C-bus GPO Expander in XQFN8 package PCA9570GMH NXP Semiconductors 1: £0.721 35,679In Stock	Mfr. Part No. PCA9570GMH Mouser Part No 771-PCA9570GMH	NXP Semiconductors	Interface - I/O Expanders 4-bit I2C-bus GPO Expander in XQFN8 package Learn More about NXP Semiconductors nxp pca9570 gpo expander	Datasheet	35,679In Stock	Cut Tape £0.721 £0.531 £0.483 £0.431 View Reel £0.361 £0.406 £0.391 £0.382 £0.37 £0.361 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Interface - I/O Expanders 40-bit I2C-bus Advanced I/O Expander with Interrupt, Reset and Output Enable in TSSOP56 package PCA9698DGG,518 NXP Semiconductors 1: £7.18 5,229In Stock 12,000Expected 29/12/2026	Mfr. Part No. PCA9698DGG,518 Mouser Part No 771-PCA9698DGG-T	NXP Semiconductors	Interface - I/O Expanders 40-bit I2C-bus Advanced I/O Expander with Interrupt, Reset and Output Enable in TSSOP56 package	Datasheet	5,229In Stock 12,000Expected 29/12/2026	Cut Tape £7.18 £5.60 £5.19 £4.75 View Reel £4.17 £4.58 £4.53 £4.48 £4.17 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in HWQFN24 package PCAL9535AHF,128 NXP Semiconductors 1: £1.75 14,923In Stock 18,000Expected 30/08/2027	Mfr. Part No. PCAL9535AHF,128 Mouser Part No 771-PCAL9535AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	14,923In Stock 18,000Expected 30/08/2027	Cut Tape £1.75 £1.41 £1.28 £1.15 View Reel £0.96 £1.08 £1.05 £1.03 £1.02 £0.96 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package PCAL9535APW,118 NXP Semiconductors 1: £1.85 14,659In Stock	Mfr. Part No. PCAL9535APW,118 Mouser Part No 771-PCAL9535APW,118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	14,659In Stock	Cut Tape £1.85 £1.37 £1.32 £1.18 Reel £1.00 View £1.11 £1.07 £1.03 £0.986 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
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: £1.58 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 £1.58 £1.17 £1.11 £0.995 View Reel £0.856 £0.943 £0.908 £0.882 £0.856 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package PCAL9555AHF,128 NXP Semiconductors 1: £1.53 42,450In Stock	Mfr. Part No. PCAL9555AHF,128 Mouser Part No 771-PCAL9555AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	42,450In Stock	Cut Tape £1.53 £1.13 £1.04 £0.925 View Reel £0.773 £0.871 £0.841 £0.773 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 16 CHAN LOW VOLT I2C GPIO +PWM SX1509BIULTRT Semtech 1: £2.65 34,935In Stock 39,000Expected 23/04/2027	Mfr. Part No. SX1509BIULTRT Mouser Part No 947-SX1509BIULTRT	Semtech	Interface - I/O Expanders 16 CHAN LOW VOLT I2C GPIO +PWM Learn More about Semtech sx1508b sx1509b gpio	Datasheet	34,935In Stock 39,000Expected 23/04/2027	Cut Tape £2.65 £1.99 £1.82 £1.64 View Reel £1.44 £1.56 £1.55 £1.50 £1.44 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Interface - I/O Expanders 16 CHAN LOW VOLT GPIO + PWM SX1509QBIULTRT Semtech 1: £2.65 7,600In Stock	Mfr. Part No. SX1509QBIULTRT Mouser Part No 947-SX1509QBIULTRT	Semtech	Interface - I/O Expanders 16 CHAN LOW VOLT GPIO + PWM Learn More about Semtech sx1508b sx1509b gpio	Datasheet	7,600In Stock	Cut Tape £2.65 £1.99 £1.82 £1.64 View Reel £1.44 £1.56 £1.55 £1.50 £1.44 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Interface - I/O Expanders 8bit Input/Output Exp I2C interface MCP23008-E/ML Microchip Technology 1: £1.12 7,477In Stock 4,095Expected 24/12/2026	Mfr. Part No. MCP23008-E/ML Mouser Part No 579-MCP23008-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp I2C interface	Datasheet	7,477In Stock 4,095Expected 24/12/2026	£1.12 £0.943 £0.849	Min.: 1 Mult.: 1
Interface - I/O Expanders In/Out I2C int MCP23008-E/P Microchip Technology 1: £1.15 2,902In Stock	Mfr. Part No. MCP23008-E/P Mouser Part No 579-MCP23008-E/P	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	2,902In Stock	£1.15 £0.969	Min.: 1 Mult.: 1
Interface - I/O Expanders In/Out I2C int MCP23008-E/SO Microchip Technology 1: £1.03 5,667In Stock	Mfr. Part No. MCP23008-E/SO Mouser Part No 579-MCP23008-E/SO	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	5,667In Stock	£1.03 £0.856 £0.788	Min.: 1 Mult.: 1

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