.hide-partial { max-height: none; } .show-more { display: none; }

QFN-40 Embedded Processors & Controllers

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Embedded Processors & Controllers

List Images

Results: 318

Applied Filters:

Package/Case = QFN-40

Manufacturer

Mounting Style

Core

Number of I/Os

Data Bus Width

ADC Resolution

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

8-bit Microcontrollers - MCU 8-Bit MCU 56KB Flash 4KB RAM 256B EE CIP

PIC16F18877-I/MV
Microchip Technology
1: $2.04
170In 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

Datasheet

170In Stock

$2.04

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC16

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 14KB FL 512B RAM 10 bit1.8-3.6V

PIC16LF1517-I/MV
Microchip Technology
1: $2.34
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

Datasheet

283In Stock

$2.34

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC16

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 14KB FL 512B RAM LCD nanoWatt XLP

PIC16LF1907-I/MV
Microchip Technology
1: $2.22
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

Datasheet

30In Stock

$2.22

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC16

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 28KB Fl 1KB R 256B 1.8-5.5V

PIC16LF1939-E/MV
Microchip Technology
1: $3.21
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

$3.21

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC16

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 32 KB Flash RAM, 48 MHz Int.

PIC18F45K50-I/MV
Microchip Technology
1: $3.56
412In Stock

Mfr. Part No.
PIC18F45K50-I/MV

Mouser Part No
579-PIC18F45K50-I/MV

Microchip Technology

8-bit Microcontrollers - MCU 32 KB Flash RAM, 48 MHz Int.

Learn More

Datasheet

412In Stock

$3.56

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 32KB Flash, 2KB RAM, 3x 16-bit PWMs, 6 ch DMA Comparator, 8-bit DAC, 12-bit ADCC

PIC18F45Q43-I/MP
Microchip Technology
1: $1.59
433In Stock

Mfr. Part No.
PIC18F45Q43-I/MP

Mouser Part No
579-PIC18F45Q43-I/MP

Microchip Technology

8-bit Microcontrollers - MCU 32KB Flash, 2KB RAM, 3x 16-bit PWMs, 6 ch DMA Comparator, 8-bit DAC, 12-bit ADCC

Datasheet

433In Stock

$1.59

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64KB 3968b RAM 8bit familynanoWatt XLP

PIC18F46K22-I/MV
Microchip Technology
1: $3.85
327In Stock

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

Datasheet

327In Stock

$3.85

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 64KB FL 4KBRM 16MIPS 12bit ADC CTMU

PIC18F46K80-E/ML
Microchip Technology
1: $4.97
58In Stock

Mfr. Part No.
PIC18F46K80-E/ML

Mouser Part No
579-PIC18F46K80-E/ML

Microchip Technology

8-bit Microcontrollers - MCU 64KB FL 4KBRM 16MIPS 12bit ADC CTMU

Learn More

Datasheet

58In Stock

$4.97

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

35 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64KB Flash, 4KB RAM, 3x 16-bit PWMs, 6 ch DMA Comparator, 8-bit DAC, 12-bit ADCC

PIC18F46Q43-I/MP
Microchip Technology
1: $1.72
602In Stock

Mfr. Part No.
PIC18F46Q43-I/MP

Mouser Part No
579-PIC18F46Q43-I/MP

Microchip Technology

8-bit Microcontrollers - MCU 64KB Flash, 4KB RAM, 3x 16-bit PWMs, 6 ch DMA Comparator, 8-bit DAC, 12-bit ADCC

Learn More

Datasheet

602In Stock

$1.72

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 32 KB Flash RAM, 48 MHz Int.

PIC18LF45K50-I/MV
Microchip Technology
1: $3.56
352In Stock

Mfr. Part No.
PIC18LF45K50-I/MV

Mouser Part No
579-PIC18LF45K50I/MV

Microchip Technology

8-bit Microcontrollers - MCU 32 KB Flash RAM, 48 MHz Int.

Datasheet

352In Stock

$3.56

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 32KB FL 4KBRM 16MIPS 12bit ADC CTMU XLP

PIC18LF45K80-I/ML
Microchip Technology
1: $4.03
171In Stock

Mfr. Part No.
PIC18LF45K80-I/ML

Mouser Part No
579-PIC18LF45K80I/ML

Microchip Technology

8-bit Microcontrollers - MCU 32KB FL 4KBRM 16MIPS 12bit ADC CTMU XLP

Datasheet

171In Stock

$4.03

$3.69

$3.35

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

35 I/O

8 bit

12 bit

ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 512 kB AES MCU

EFM32PG22C200F512IM40-CR
Silicon Labs
1: $3.80
769In Stock
2,500Expected 09/06/2026

Mfr. Part No.
EFM32PG22C200F512IM40-CR

Mouser Part No
634-EFM32PG22C1240CR

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 512 kB AES MCU

Learn More

Datasheet

769In Stock

2,500Expected 09/06/2026

Cut Tape

$3.80

$2.57

$2.38

$2.07

View

Reel

$1.29

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

QFN-40

ARM Cortex M33

26 I/O

32 bit

12 bit

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU

C8051F508-IM
Silicon Labs
1: $15.17
901In Stock
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

Datasheet

901In Stock

$15.17

$11.52

$11.05

$9.73

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

8051

33 I/O

8 bit

12 bit

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: $2.12
623In 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

Datasheet

623In Stock

$2.12

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 128KB Flash, 8KB RAM, 1KB EEPROM, 12-bit ADC2, 8-bit DAC, Comp, 16-bit PWM,

PIC18F47Q43-I/MP
Microchip Technology
1: $1.92
764In Stock

Mfr. Part No.
PIC18F47Q43-I/MP

Mouser Part No
579-PIC18F47Q43-I/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

Datasheet

764In Stock

$1.92

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

12 bit

ARM Microcontrollers - MCU PSOC4 - GENERAL

CY8C4147LQE-S473
Infineon Technologies
1: $8.33
59In Stock

Mfr. Part No.
CY8C4147LQE-S473

Mouser Part No
727-CY8C4147LQE-S473

Infineon Technologies

ARM Microcontrollers - MCU PSOC4 - GENERAL

Learn More

Datasheet

59In Stock

$8.33

$6.45

$5.98

$5.17

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

ARM Cortex M0+

34 I/O

32 bit

12 bit

ARM Microcontrollers - MCU MCU RA4 ARM CM4 48MHZ 256K/32K QFN40

R7FA4M1AB3CNF#AA0
Renesas Electronics
1: $7.24
167In Stock
490Expected 12/08/2026

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

Datasheet

167In Stock

490Expected 12/08/2026

$7.24

$5.32

$4.95

$4.36

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

ARM Cortex M4

28 I/O

32 bit

14 bit

8-bit Microcontrollers - MCU 32KB Flash, 2KB RAM, 3x 16-bit PWMs, 6 ch DMA Comparator, 8-bit DAC, 12-bit ADCC

PIC18F45Q43-E/MP
Microchip Technology
1: $1.76
407In Stock

Mfr. Part No.
PIC18F45Q43-E/MP

Mouser Part No
579-PIC18F45Q43-E/MP

Microchip Technology

8-bit Microcontrollers - MCU 32KB Flash, 2KB RAM, 3x 16-bit PWMs, 6 ch DMA Comparator, 8-bit DAC, 12-bit ADCC

Datasheet

407In Stock

$1.76

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

12 bit

ARM Microcontrollers - MCU PSOC4 - GENERAL

CY8C4746LQS-S263
Infineon Technologies
1: $6.98
100In Stock

Mfr. Part No.
CY8C4746LQS-S263

Mouser Part No
727-CY8C4746LQS-S263

Infineon Technologies

ARM Microcontrollers - MCU PSOC4 - GENERAL

Learn More

Datasheet

100In Stock

$6.98

$5.38

$4.98

$4.53

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

ARM Cortex M0+

34 I/O

32 bit

12 bit

ARM Microcontrollers - MCU PSOC4 - GENERAL

CY8C4747LQS-S453
Infineon Technologies
1: $8.44
100In Stock

Mfr. Part No.
CY8C4747LQS-S453

Mouser Part No
727-CY8C4747LQS-S453

Infineon Technologies

ARM Microcontrollers - MCU PSOC4 - GENERAL

Learn More

Datasheet

100In Stock

$8.44

$6.54

$6.07

$5.55

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

ARM Cortex M0+

34 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 48MHz, 5V Main Stream CM0+ MCU

MKE14Z32VFP4
NXP Semiconductors
1: $3.44
490In Stock

Mfr. Part No.
MKE14Z32VFP4

Mouser Part No
771-MKE14Z32VFP4

NXP Semiconductors

ARM Microcontrollers - MCU 48MHz, 5V Main Stream CM0+ MCU

Learn More

Datasheet

490In Stock

$3.44

$2.59

$2.37

$2.14

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

ARM Cortex M0+

36 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 48MHz, 5V Main Stream CM0+ MCU

MKE14Z64VFP4
NXP Semiconductors
1: $3.74
490In Stock

Mfr. Part No.
MKE14Z64VFP4

Mouser Part No
771-MKE14Z64VFP4

NXP Semiconductors

ARM Microcontrollers - MCU 48MHz, 5V Main Stream CM0+ MCU

Learn More

Datasheet

490In Stock

$3.74

$2.82

$2.59

$2.34

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

ARM Cortex M0+

36 I/O

32 bit

12 bit

8-bit Microcontrollers - MCU 32KB 1536b RAM 8bit familynanoWatt XLP

PIC18F45K22-I/MV
Microchip Technology
1: $3.35
540Expected 09/06/2026

Mfr. Part No.
PIC18F45K22-I/MV

Mouser Part No
579-PIC18F45K22-I/MV

Microchip Technology

8-bit Microcontrollers - MCU 32KB 1536b RAM 8bit familynanoWatt XLP

Learn More

Datasheet

540Expected 09/06/2026

$3.35

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 32KB FL 4KBRM 16MIPS 12bit ADC CTMU

PIC18F45K80-I/ML
Microchip Technology
1: $4.03
580Expected 08/06/2026

Mfr. Part No.
PIC18F45K80-I/ML

Mouser Part No
579-PIC18F45K80-I/ML

Microchip Technology

8-bit Microcontrollers - MCU 32KB FL 4KBRM 16MIPS 12bit ADC CTMU

Learn More

Datasheet

580Expected 08/06/2026

$4.03

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

PIC18

35 I/O

8 bit

12 bit

ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 128 kB AES MCU

EFM32PG22C200F128IM40-C
Silicon Labs
1: $3.05
4,500Expected 09/06/2026

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

Datasheet

4,500Expected 09/06/2026

$3.05

$1.99

$1.82

$1.57

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

ARM Cortex M33

26 I/O

32 bit

12 bit, 16 bit

QFN-40 Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support