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QFN-40 Microcontrollers - MCU

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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.	Mounting Style	Package/Case	Core	Data Bus Width	Maximum Clock Frequency	Program Memory Size	Data RAM Size	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Maximum Operating Temperature	Qualification	Packaging
RF Microcontrollers - MCU SimpleLink 32bit Arm Cortex-M0+ 2.4GHz w CC2340R53N0RKPR Texas Instruments 1: £2.13 77In Stock 3,000Expected 13/11/2026 New Product	Mfr. Part No. CC2340R53N0RKPR Mouser Part No 595-CC2340R53N0RKPR New Product	Texas Instruments	RF Microcontrollers - MCU SimpleLink 32bit Arm Cortex-M0+ 2.4GHz w Learn More about Texas Instruments ti cc2340r5 wireless mcu	Datasheet	77In Stock 3,000Expected 13/11/2026	Cut Tape £2.13 £1.58 £1.45 £1.31 Reel £1.14 View £1.23 £1.20 £1.15 £1.13	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	QFN-40	Arm Cortex-M0+	32 bit	12 MHz	512 kB	64 kB	12 bit	26 GPIO	2.2 V	3.8 V	+ 85 C		Reel, Cut Tape
ARM Microcontrollers - MCU PSoC 4 S-Series CapSense CY8C4124LQI-S413 Infineon Technologies 1: £2.65 405In Stock	Mfr. Part No. CY8C4124LQI-S413 Mouser Part No 727-CY8C4124LQI-S413	Infineon Technologies	ARM Microcontrollers - MCU PSoC 4 S-Series CapSense Learn More about Infineon Technologies cypress psoc 4100 mcus	Datasheet	405In Stock	£2.65 £2.00 £1.74 £1.65 View £1.52 £1.48 £1.47 £1.43	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M0+	32 bit	24 MHz	16 kB	4 kB	10 bit	34 I/O	1.71 V	5.5 V	+ 85 C		Tray
ARM Microcontrollers - MCU PSoC 4 S-Series CapSense CY8C4146LQI-S433 Infineon Technologies 1: £3.23 170In Stock 2,450Expected 03/12/2026	Mfr. Part No. CY8C4146LQI-S433 Mouser Part No 727-CY8C4146LQI-S433	Infineon Technologies	ARM Microcontrollers - MCU PSoC 4 S-Series CapSense Learn More about Infineon Technologies cypress semiconductor psoc4100s	Datasheet	170In Stock 2,450Expected 03/12/2026	£3.23 £2.44 £2.13 £2.03 View £1.87 £1.82 £1.80 £1.75	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M0+	32 bit	48 MHz	64 kB	8 kB	10 bit, 12 bit	34 I/O	1.71 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 7Kb Flash 512b ROM PAmp FstCmp I2C/SPI PIC16F1784-I/MV Microchip Technology 1: £2.10 11In Stock 292On Order	Mfr. Part No. PIC16F1784-I/MV Mouser Part No 579-PIC16F1784-I/MV	Microchip Technology	8-bit Microcontrollers - MCU 7Kb Flash 512b ROM PAmp FstCmp I2C/SPI Learn More about Microchip Technology microchip intelligent analog PIC	Datasheet	11In Stock 292On Order	£2.10 £1.93 £1.75	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC16	8 bit	32 MHz	7 kB	512 B	12 bit	36 I/O	2.3 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8-Bit MCU 56KB Flash 4KB RAM 256B EE CIP PIC16F18877-E/MV Microchip Technology 1: £1.61 441In Stock	Mfr. Part No. PIC16F18877-E/MV Mouser Part No 579-PIC16F18877-E/MV	Microchip Technology	8-bit Microcontrollers - MCU 8-Bit MCU 56KB Flash 4KB RAM 256B EE CIP Learn More about Microchip Technology microchip pic16f188xx microcontrollers	Datasheet	441In Stock	£1.61 £1.48 £1.34	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC16	8 bit	32 MHz	56 kB	4 kB	10 bit	36 I/O	2.3 V	5.5 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8-Bit MCU 56KB Flash 4KB RAM 256B EE CIP PIC16F18877-I/MV Microchip Technology 1: £1.53 70In Stock	Mfr. Part No. PIC16F18877-I/MV Mouser Part No 579-PIC16F18877-I/MV	Microchip Technology	8-bit Microcontrollers - MCU 8-Bit MCU 56KB Flash 4KB RAM 256B EE CIP Learn More about Microchip Technology microchip pic16f188xx microcontrollers	Datasheet	70In Stock	£1.53 £1.41 £1.27	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC16	8 bit	32 MHz	56 kB	4 kB	10 bit	36 I/O	2.3 V	5.5 V	+ 85 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 28KB Fl 1KB R 256B 1.8-5.5V PIC16LF1939-E/MV Microchip Technology 1: £2.41 47In Stock	Mfr. Part No. PIC16LF1939-E/MV Mouser Part No 579-PIC16LF1939-E/MV	Microchip Technology	8-bit Microcontrollers - MCU 28KB Fl 1KB R 256B 1.8-5.5V	Datasheet	47In Stock	£2.41 £2.22 £2.01	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC16	8 bit	32 MHz	28 kB	1 kB	10 bit	36 I/O	1.8 V	3.6 V	+ 125 C		Tube
8-bit Microcontrollers - MCU 28KB Fl 1KB R 256B 1.8-5.5V PIC16LF1939-I/MV Microchip Technology 1: £2.19 131In Stock 876On Order	Mfr. Part No. PIC16LF1939-I/MV Mouser Part No 579-PIC16LF1939-I/MV	Microchip Technology	8-bit Microcontrollers - MCU 28KB Fl 1KB R 256B 1.8-5.5V	Datasheet	131In Stock 876On Order On Order Ship Dates Mfr. No: PIC16LF1939-I/MV Stock: 131 Can Dispatch Immediately On Order: 365 Expected 09/11/2026 511 Expected 12/11/2026 Factory Lead Time: 17 Weeks	£2.19 £2.01 £1.82	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC16	8 bit	32 MHz	28 kB	1 kB	10 bit	36 I/O	1.8 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 64KB 3968b RAM 8bit familynanoWatt XLP PIC18F46K22-I/MV Microchip Technology 1: £2.89 34In Stock 730On Order	Mfr. Part No. PIC18F46K22-I/MV Mouser Part No 579-PIC18F46K22-I/MV	Microchip Technology	8-bit Microcontrollers - MCU 64KB 3968b RAM 8bit familynanoWatt XLP Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	34In Stock 730On Order On Order Ship Dates Mfr. No: PIC18F46K22-I/MV Stock: 34 Can Dispatch Immediately On Order: 219 Expected 07/01/2027 511 Expected 25/02/2027 Factory Lead Time: 17 Weeks	£2.89 £2.65 £2.39	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC18	8 bit	64 MHz	64 kB	3.8 kB	10 bit	36 I/O	1.8 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 128KB Flash, 8KB RAM, 1KB EEPROM, 12-bit ADC2, 8-bit DAC, Comp, 16-bit PWM, PIC18F47Q43-E/MP Microchip Technology 1: £1.59 523In Stock	Mfr. Part No. PIC18F47Q43-E/MP Mouser Part No 579-PIC18F47Q43-E/MP	Microchip Technology	8-bit Microcontrollers - MCU 128KB Flash, 8KB RAM, 1KB EEPROM, 12-bit ADC2, 8-bit DAC, Comp, 16-bit PWM, Learn More about Microchip Technology microchip pic18 q43 microcontroller	Datasheet	523In Stock	£1.59 £1.47 £1.32	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC18	8 bit	64 MHz	128 kB	8 kB	12 bit	36 I/O	1.8 V	5.5 V	+ 125 C		Tube
ARM Microcontrollers - MCU PSOC4 - GENERAL CY8C4147LQE-S473 Infineon Technologies 1: £4.94 67In Stock	Mfr. Part No. CY8C4147LQE-S473 Mouser Part No 727-CY8C4147LQE-S473	Infineon Technologies	ARM Microcontrollers - MCU PSOC4 - GENERAL Learn More about Infineon Technologies cypress psoc 4100 mcus	Datasheet	67In Stock	£4.94 £3.73 £3.33 £3.15 View £2.95 £2.87	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M0+	32 bit	48 MHz	128 kB	16 kB	12 bit	34 I/O	1.71 V	5.5 V	+ 125 C	AEC-Q100	Tray
8-bit Microcontrollers - MCU 14KB FL 512B RAM 10 bit1.8-3.6V PIC16LF1517-I/MV Microchip Technology 1: £1.75 283In Stock	Mfr. Part No. PIC16LF1517-I/MV Mouser Part No 579-PIC16LF1517-I/MV	Microchip Technology	8-bit Microcontrollers - MCU 14KB FL 512B RAM 10 bit1.8-3.6V Learn More about Microchip Technology microchipxlp	Datasheet	283In Stock	£1.75 £1.62 £1.47	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC16	8 bit	20 MHz	14 kB	512 B	10 bit	36 I/O	2.5 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 14KB FL 512B RAM LCD nanoWatt XLP PIC16LF1907-I/MV Microchip Technology 1: £1.67 30In Stock	Mfr. Part No. PIC16LF1907-I/MV Mouser Part No 579-PIC16LF1907-I/MV	Microchip Technology	8-bit Microcontrollers - MCU 14KB FL 512B RAM LCD nanoWatt XLP Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	30In Stock	£1.67 £1.51 £1.37	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC16	8 bit	20 MHz	14 kB	512 B	10 bit	36 I/O	1.8 V	3.6 V	+ 85 C		Tube
ARM Microcontrollers - MCU PSOC4 - GENERAL CY8C4746LQS-S263 Infineon Technologies 1: £5.76 100In Stock	Mfr. Part No. CY8C4746LQS-S263 Mouser Part No 727-CY8C4746LQS-S263	Infineon Technologies	ARM Microcontrollers - MCU PSOC4 - GENERAL Learn More about Infineon Technologies infineon 4700s microcontrollers	Datasheet	100In Stock	£5.76 £4.44 £3.91 £3.75 View £3.47 £3.36 £3.33 £3.18 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M0+	32 bit	48 MHz	64 kB	8 kB	12 bit	34 I/O	1.71 V	5.5 V	+ 105 C		Tray
ARM Microcontrollers - MCU PSOC4 - GENERAL CY8C4747LQS-S453 Infineon Technologies 1: £6.60 100In Stock	Mfr. Part No. CY8C4747LQS-S453 Mouser Part No 727-CY8C4747LQS-S453	Infineon Technologies	ARM Microcontrollers - MCU PSOC4 - GENERAL Learn More about Infineon Technologies infineon 4700s microcontrollers	Datasheet	100In Stock	£6.60 £5.19 £4.78 £4.42 View £4.19 £3.96 £3.86 £3.84 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M0+	32 bit	48 MHz	128 kB	8 kB	12 bit	34 I/O	1.71 V	5.5 V	+ 105 C		Tray
ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 128 kB AES MCU EFM32PG22C200F128IM40-C Silicon Labs 1: £1.61 12,250Expected 10/11/2026	Mfr. Part No. EFM32PG22C200F128IM40-C Mouser Part No 634-EFM32PG22C12840C	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 128 kB AES MCU Learn More about Silicon Labs efm32pg22 mcus	Datasheet	12,250Expected 10/11/2026	£1.61 £1.26 £1.16 £1.07 View £1.05 £0.995 £0.986 £0.969 £0.952	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M33	32 bit	76.8 MHz	128 kB	32 kB	12 bit, 16 bit	26 I/O	1.71 V	3.8 V	+ 125 C		Tray
ARM Microcontrollers - MCU PSOC4 - GENERAL CY8C4025LQSS413XQLA1 Infineon Technologies 1: £6.08 4,900Expected 05/11/2026	Mfr. Part No. CY8C4025LQSS413XQLA1 Mouser Part No 726-CY8C4025LQSS413X	Infineon Technologies	ARM Microcontrollers - MCU PSOC4 - GENERAL	Datasheet	4,900Expected 05/11/2026	£6.08 £4.46 £4.16 £3.66 View £3.47 £3.12 £2.86	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M0+	32 bit	24 MHz	32 kB	4 kB	10 bit	34 I/O	1.71 V	5.5 V	+ 105 C	AEC-Q100	Tray
ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 256 kB AES MCU EFM32PG22C200F256IM40-C Silicon Labs 1: £1.80 2,450On Order	Mfr. Part No. EFM32PG22C200F256IM40-C Mouser Part No 634-EFM32PG22C25640C	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 256 kB AES MCU Learn More about Silicon Labs efm32pg22 mcus	Datasheet	2,450On Order	£1.80 £1.42 £1.27 £1.14 View £1.10 £1.05 £1.04 £1.00	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M33	32 bit	76.8 MHz	256 kB	32 kB	12 bit, 16 bit	26 I/O	1.71 V	3.8 V	+ 125 C		Tray
ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 256 kB AES MCU EFM32PG22C200F256IM40-CR Silicon Labs 1: £1.75 7,500Expected 17/11/2026	Mfr. Part No. EFM32PG22C200F256IM40-CR Mouser Part No 634-EFM32PG22C5640CR	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 256 kB AES MCU Learn More about Silicon Labs efm32pg22 mcus	Datasheet	7,500Expected 17/11/2026	Cut Tape £1.75 £1.30 £1.19 £1.12 Reel £0.943	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-40	ARM Cortex M33	32 bit	76.8 MHz	256 kB	32 kB	12 bit	26 I/O	3 V	3 V	+ 125 C		Reel, Cut Tape
ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 80 MHz 128 kB AES MCU EFM32PG23B200F128IM40-CR Silicon Labs 1: £2.55 2,497Expected 11/12/2026	Mfr. Part No. EFM32PG23B200F128IM40-CR Mouser Part No 634-PG2320F128IM40CR	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 80 MHz 128 kB AES MCU Learn More about Silicon Labs efm32pg23 microcontrollers	Datasheet	2,497Expected 11/12/2026	Cut Tape £2.55 £1.90 £1.74 £1.55 View Reel £1.22 £1.48 £1.44 £1.22 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-40	ARM Cortex M33	32 bit	80 MHz	128 kB	64 kB	12 bit/16 bit/20 bit	29 I/O	1.71 V	3.8 V	+ 125 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU MCU RA4 ARM CM4 48MHZ 256K/32K QFN40 R7FA4M1AB3CNF#AA0 Renesas Electronics 1: £4.34 980On Order	Mfr. Part No. R7FA4M1AB3CNF#AA0 Mouser Part No 968-R7FA4M1AB3CNFAA0	Renesas Electronics	ARM Microcontrollers - MCU MCU RA4 ARM CM4 48MHZ 256K/32K QFN40 Learn More about Renesas Electronics renesas ra4m1 mcu	Datasheet	980On Order On Order Ship Dates Mfr. No: R7FA4M1AB3CNF#AA0 Stock: 0 On Order: 93 Expected 10/11/2026 887 Expected 18/02/2027 Factory Lead Time: 18 Weeks	£4.34 £3.32 £2.92 £2.78 View £2.57 £2.50 £2.44 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	ARM Cortex M4	32 bit	48 MHz	256 kB	32 kB	14 bit	28 I/O	1.6 V	5.5 V	+ 105 C		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU C8051F508-IM Silicon Labs 1: £10.24 370Expected 25/06/2027 End of Life	Mfr. Part No. C8051F508-IM Mouser Part No 634-C8051F508-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU Learn More about Silicon Labs silicon c8051f58x automotive industrial mcus	Datasheet	370Expected 25/06/2027	£10.24 £8.02 £7.47 £6.86 View £6.79 £6.57	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	8051	8 bit	50 MHz	64 kB	4.25 kB	12 bit	33 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8-Bit MCU 28KB Flash 2KB RAM 256B EE CIP PIC16F18876-I/MV Microchip Technology 1: £1.39 414Expected 25/12/2026	Mfr. Part No. PIC16F18876-I/MV Mouser Part No 579-PIC16F18876-I/MV	Microchip Technology	8-bit Microcontrollers - MCU 8-Bit MCU 28KB Flash 2KB RAM 256B EE CIP Learn More about Microchip Technology microchip pic16f188xx microcontrollers	Datasheet	414Expected 25/12/2026	£1.39 £1.27 £1.14	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	PIC16	8 bit	32 MHz	28 kB	2 kB	10 bit	36 I/O	2.3 V	5.5 V	+ 85 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 128KB Flash, 8KB RAM, 1KB EEPROM, 12-bit ADC2, 8-bit DAC, Comp, 16-bit PWM, PIC18F47Q43T-I/MP Microchip Technology 3,300: £1.21 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. PIC18F47Q43T-I/MP Mouser Part No 579-IC18F47Q43T-I/MP	Microchip Technology	8-bit Microcontrollers - MCU 128KB Flash, 8KB RAM, 1KB EEPROM, 12-bit ADC2, 8-bit DAC, Comp, 16-bit PWM,	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel £1.21	Min.: 3,300 Mult.: 3,300 : 3,300	SMD/SMT	QFN-40	PIC18	8 bit	64 MHz	128 kB	8 kB	12 bit	36 I/O	1.8 V	5.5 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 14KB Flash 512B RAM 10-bit 1.8-5.5V PIC16F1517-E/MV Microchip Technology 365: £1.62 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. PIC16F1517-E/MV Mouser Part No 579-PIC16F1517-E/MV	Microchip Technology	8-bit Microcontrollers - MCU 14KB Flash 512B RAM 10-bit 1.8-5.5V Learn More about Microchip Technology microchip pic16f15xx microcontrollers	Datasheet	Non-Stocked Lead-Time 9 Weeks	£1.62	Min.: 365 Mult.: 73	SMD/SMT	QFN-40	PIC16	8 bit	20 MHz	8 kB	512 B	10 bit	36 I/O	2.5 V	5.5 V	+ 125 C		Tube