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All Products > Semiconductors > Integrated Circuits - ICs > Embedded Processors & Controllers > Microcontrollers - MCU
Microcontrollers (MCUs) are available at Mouser Electronics from industry leading microcontroller manufacturers. Mouser is an authorized distributor for Atmel, Freescale, Microchip, NXP, Silicon Labs, STMicroelectronics, Texas Instruments & many more. View our wide selection of microcontrollers below. View our Newest Microcontrollers page.
Category   Semiconductors >  Integrated Circuits - ICs >  Embedded Processors & Controllers >  Microcontrollers - MCU

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Compare up to 20 parts.
Select ImageMouser Part # Mfr. Part # Mfr. Description Documents Availability Pricing
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Quantity RoHS Core Data Bus Width Maximum Clock Frequency Program Memory Size Data RAM Size On-Chip ADC Maximum Operating Temperature Mounting Style Package / Case
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Microchip Technology PIC16F819-I/SS
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Microchip Technology 8-bit Microcontrollers - MCU 3.5KB 256 RAM 16 I/O
Data Sheet 6,098
In Stock
Alternative Packaging
1: $2.76
10: $2.30
25: $2.22
100: $2.14



Min.: 1
Mult.: 1
PIC 8 bit 20 MHz 3584 B 256 B Yes + 85 C SMD/SMT SSOP-20
Atmel ATmega48-20AU
Enlarge
Atmel 8-bit Microcontrollers - MCU 4kB Flash 0.256kB EEPROM 23 I/O Pins
Page 218

Data Sheet
14,063
In Stock
Alternative Packaging
1: $2.79
10: $2.54
25: $1.78
50: $1.65
100: $1.59



Min.: 1
Mult.: 1
AVR 8 bit 20 MHz 4 kB 512 B Yes + 85 C SMD/SMT TQFP-32
Atmel AT89S8253-24JU
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Atmel 8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V
Page 217

Data Sheet
8,723
In Stock
1: $2.86
10: $2.60
25: $1.82
50: $1.69
100: $1.63



Min.: 1
Mult.: 1
8051 8 bit 24 MHz 12 kB 256 B No + 85 C SMD/SMT PLCC
Atmel ATMEGA328P-MU
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Atmel 8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V
Page 219

Data Sheet
8,790
In Stock
Alternative Packaging
1: $3.12
10: $2.84
25: $1.99
50: $1.85
100: $1.77



Min.: 1
Mult.: 1
AVR 8 bit 20 MHz 32 kB 2 kB Yes + 85 C SMD/SMT MLF-32
Atmel ATXMEGA32A4U-AU
Enlarge
Atmel 8-bit Microcontrollers - MCU AVR8 32KB FLSH 4KB
This product may require additional documentation to export from the United States.
Page 220

Data Sheet
10,355
In Stock
Alternative Packaging
1: $3.51
10: $3.19
25: $2.23
50: $2.08
100: $2.00



Min.: 1
Mult.: 1
AVR 8 bit/16 bit 32 MHz 32 kB 4 kB Yes + 85 C SMD/SMT TQFP-44
Atmel ATXMEGA32A4U-MH
Enlarge
Atmel 8-bit Microcontrollers - MCU AVR8 32KB FLSH 4KB
This product may require additional documentation to export from the United States.
Page 220

Data Sheet
7,426
In Stock
Alternative Packaging
1: $3.51
10: $3.19
25: $2.23
50: $2.08
100: $2.00



Min.: 1
Mult.: 1
AVR 8 bit/16 bit 32 MHz 32 kB 4 kB Yes + 85 C SMD/SMT QFN-44
Atmel 8-bit Microcontrollers - MCU AVR USB 8K FLASH AVR,USB16K FLASH
Data Sheet 6,229
In Stock
More Info Available
Alternative Packaging
1: $3.80
10: $3.45
25: $2.42
50: $2.24
100: $2.16



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 16 kB 1.25 kB Yes + 85 C SMD/SMT TQFP-32
Atmel 8-bit Microcontrollers - MCU AVR USB 8K FLASH AVR USB 16K FLASH
Data Sheet 6,926
In Stock
More Info Available
Alternative Packaging
1: $3.80
10: $3.45
25: $2.42
50: $2.24
100: $2.16



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 16 kB 1.25 kB Yes + 85 C SMD/SMT QFN EP
Atmel ATMEGA8515-16AU
Enlarge
Atmel 8-bit Microcontrollers - MCU 8kB Flash 0.5kB EEPROM 35 I/O Pins
Page 218

Data Sheet
7,323
In Stock
Alternative Packaging
1: $3.85
10: $3.50
25: $2.45
50: $2.28
100: $2.19



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 8 kB 512 B Yes + 85 C SMD/SMT TQFP-44
Atmel ATmega88-20AU
Enlarge
Atmel 8-bit Microcontrollers - MCU 8kB Flash 0.5kB EEPROM 23 I/O Pins
Page 218

Data Sheet
6,567
In Stock
Alternative Packaging
1: $3.94
10: $3.58
25: $2.51
50: $2.33
100: $2.24



Min.: 1
Mult.: 1
AVR 8 bit 20 MHz 8 kB 1 kB Yes + 85 C SMD/SMT TQFP-32
Atmel 8-bit Microcontrollers - MCU 16 MHz, 85DEG
Data Sheet 6,648
In Stock
1: $3.96
10: $3.60
25: $2.52
50: $2.34
100: $2.25



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz Yes
Freescale Semiconductor MC9S08AC96CFGE
Enlarge
Freescale Semiconductor 8-bit Microcontrollers - MCU 8 Bit 96K FLASH 8K RAM
Page 234

Data Sheet
9,926
In Stock
1: $4.33
10: $4.08
25: $3.85
100: $2.65



Min.: 1
Mult.: 1
S08 8 bit 40 MHz 96 kB 8 kB Yes + 85 C SMD/SMT LQFP-44
Atmel ATmega168-20AU
Enlarge
Atmel 8-bit Microcontrollers - MCU 16kB Flash 0.5kB EEPROM 23 I/O Pins
Page 218

Data Sheet
7,073
In Stock
Alternative Packaging
1: $4.42
10: $4.02
25: $2.81
50: $2.61
100: $2.51



Min.: 1
Mult.: 1
AVR 8 bit 20 MHz 16 kB 1 kB Yes + 85 C SMD/SMT TQFP-32
Microchip Technology 16-bit Microcontrollers - MCU 64KB Flash 8KB RAM nanoWatt
Data Sheet 6,638
In Stock
Alternative Packaging
1: $4.49
10: $3.74
25: $3.43
100: $3.10



Min.: 1
Mult.: 1
PIC 16 bit 32 MHz 64 kB 8 kB + 85 C SMD/SMT TQFP-44
Atmel ATMEGA32U2-MU
Enlarge
Atmel 8-bit Microcontrollers - MCU AVR USB 32K FLASH INDUSTRIAL
Data Sheet 5,784
In Stock
Alternative Packaging
1: $4.50
10: $4.09
25: $2.87
50: $2.66
100: $2.56



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 32 kB 2.5 kB Yes + 85 C SMD/SMT QFN-32
Atmel ATmega168-20PU
Enlarge
Atmel 8-bit Microcontrollers - MCU 16kB Flash 0.5kB EEPROM 23 I/O Pins
Page 218

Data Sheet
5,188
In Stock
1: $4.53
10: $4.12
25: $2.88
50: $2.68
100: $2.58



Min.: 1
Mult.: 1
AVR 8 bit 20 MHz 16 kB 1 kB Yes + 85 C Through Hole PDIP-28
Microchip Technology PIC18F2520-I/SO
Enlarge
Microchip Technology 8-bit Microcontrollers - MCU 32KB 1536 RAM 25I/0
Page 253

Data Sheet
4,761
In Stock
More Info Available
Alternative Packaging
1: $4.57
10: $3.81
25: $3.72
100: $3.63



Min.: 1
Mult.: 1
PIC 8 bit 40 MHz 32 kB 1536 B Yes + 85 C SMD/SMT SOIC-28
Atmel ATMEGA16A-AU
Enlarge
Atmel 8-bit Microcontrollers - MCU 16KB In-system Flash 2.7V - 5.5V
Page 218

Data Sheet
5,423
In Stock
Alternative Packaging
1: $4.75
10: $4.32
25: $3.02
50: $2.81
100: $2.70



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 16 kB 1 kB Yes + 85 C SMD/SMT TQFP-44
Atmel AT89C51RB2-RLTUM
Enlarge
Atmel 8-bit Microcontrollers - MCU 16kB Flash 1280B RAM 2.7V-5.5V
Page 217

Data Sheet
4,140
In Stock
1: $4.98
10: $4.96
25: $4.94
100: $4.90
500: View



Min.: 1
Mult.: 1
8051 8 bit 60 MHz 16 kB 1280 B No + 85 C SMD/SMT VQFP-44
NXP Semiconductors P89LPC936FDH,518
Enlarge
771-LPC936FDH518


To purchase full reel, order in multiples of 2500:
NXP Semiconductors 8-bit Microcontrollers - MCU 16K FL/768B
Page 259

Data Sheet
5,727
In Stock
Cut Tape
1: $5.17
10: $4.16
100: $3.79
250: $3.42
Reel
2,500: $2.46
5,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 2,500
80C51 8 bit 18 MHz 16 kB 768 B Yes + 85 C SMD/SMT TSSOP-28
Silicon Labs C8051F320-GQ
Enlarge
Silicon Labs 8-bit Microcontrollers - MCU 16KB 10ADC USB 32P MCU Rev E
Page 264

Data Sheet
5,891
In Stock
Alternative Packaging
1: $5.37
25: $5.18
100: $5.00
1,000: $4.56



Min.: 1
Mult.: 1
8051 8 bit 25 MHz 16 kB 2.25 kB Yes + 85 C SMD/SMT LQFP-32
Microchip Technology 16-bit Microcontrollers - MCU 16B 16MIPS 128KB RAM 53 I/O
Page 254

Data Sheet
4,472
In Stock
Alternative Packaging
1: $5.53
10: $4.61
25: $4.22
100: $3.82



Min.: 1
Mult.: 1
PIC 16 bit 32 MHz 128 kB 16 kB + 85 C SMD/SMT TQFP-64
Texas Instruments MSP430F2274IDAR
Enlarge
595-MSP430F2274IDAR


To purchase full reel, order in multiples of 2000:
Texas Instruments 16-bit Microcontrollers - MCU 16-bit Ultra-Lo-Pwr Microcontroller
Page 274

Data Sheet
5,330
In Stock
Alternative Packaging
Cut Tape
1: $5.67
10: $5.06
25: $4.55
50: $4.35
100: View
2,000: $2.53

MouseReel Available


Min.: 1
Mult.: 1
Reel: 2,000
MSP430 16 bit 16 MHz 32 kB 1 kB + 85 C SMD/SMT TSSOP-38
Microchip Technology PIC18F2620-I/SO
Enlarge
Microchip Technology 8-bit Microcontrollers - MCU 64KB 3968 RAM 25 I/O
Page 254

Data Sheet
4,172
In Stock
Alternative Packaging
1: $5.84
10: $4.87
25: $4.76
100: $4.64



Min.: 1
Mult.: 1
PIC 8 bit 40 MHz 64 kB 3968 B Yes + 125 C SMD/SMT SOIC-28
NXP Semiconductors LPC1347FBD48,151
Enlarge
NXP Semiconductors ARM Microcontrollers - MCU 32bit ARM Cortex-M3 64KB Flash 12KB SRAM
Page 258

Data Sheet
5,451
In Stock
1: $5.89
10: $4.74
100: $4.32
250: $3.90
500: View



Min.: 1
Mult.: 1
ARM Cortex M3 32 bit 72 MHz 64 kB 8 kB + 85 C SMD/SMT LQFP-48
Compare up to 20 parts.
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