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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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Atmel ATmega644PA-AU
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Atmel 8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins
Data Sheet 2,955
In Stock
Alternative Packaging
1: $7.81
10: $7.03
25: $6.40
50: $6.25
100: View



Min.: 1
Mult.: 1
AVR 8 bit 20 MHz 64 kB 4 kB Yes + 85 C SMD/SMT TQFP-44
Atmel AT89C51RB2-RLTUM
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Atmel 8-bit Microcontrollers - MCU 16kB Flash 1280B RAM 2.7V-5.5V
Page 217

Data Sheet
4,133
In Stock
1: $7.95
10: $7.15
25: $6.52
50: $6.36
100: View



Min.: 1
Mult.: 1
8051 8 bit 60 MHz 16 kB 1280 B No + 85 C SMD/SMT VQFP-44
STMicroelectronics STM32F103RCT6
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STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 H/D 256 to 512 USB/CAN
Data Sheet 5,129
In Stock
Alternative Packaging
1: $8.19
10: $7.38
25: $6.71
100: $6.06
250: View



Min.: 1
Mult.: 1
ARM Cortex M3 32 bit 72 MHz 256 kB 48 kB + 85 C SMD/SMT LQFP-64
Atmel ATMEGA644P-20AU
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Atmel 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
Page 219

Data Sheet
4,680
In Stock
Alternative Packaging
1: $8.54
10: $7.68
25: $7.00
50: $6.83
100: View



Min.: 1
Mult.: 1
AVR 8 bit 20 MHz 64 kB 4 kB Yes + 85 C SMD/SMT TQFP-44
Atmel AT89C5131A-RDTUM
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Atmel 8-bit Microcontrollers - MCU C5130A 32K Flash
Page 217

Data Sheet
2,995
In Stock
1: $8.63
10: $7.77
25: $7.08
50: $6.90
100: View



Min.: 1
Mult.: 1
80C51 8 bit 48 MHz 1280 B 1.25 kB No + 85 C SMD/SMT VQFP-64
Atmel ATSAM3U4CA-AU
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Atmel ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Page 221

Data Sheet
4,223
In Stock
1: $8.91
10: $8.02
25: $7.31
50: $7.13
100: View



Min.: 1
Mult.: 1
ARM Cortex M3 32 bit 96 MHz 256 kB 52 kB + 85 C SMD/SMT LQFP-100
Atmel ATMEGA128RFA1-ZU
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Atmel RF Microcontrollers - MCU 2.4GHZ 802.15.4 128K SINGLECHIP
Page 219

Data Sheet
3,838
In Stock
Alternative Packaging
1: $9.59
10: $8.79
25: $7.99
50: $7.48
100: View



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 128 kB 16 kB + 85 C SMD/SMT QFN
Atmel ATmega128A-AU
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Atmel 8-bit Microcontrollers - MCU 128K Flash 4K EEPROM 4K SRAM 53 IO Pins
Page 219

Data Sheet
4,974
In Stock
Alternative Packaging
1: $9.75
10: $8.77
25: $7.99
50: $7.80
100: View



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 128 kB 4 kB Yes + 85 C SMD/SMT TQFP-64
Cypress Semiconductor CY7C68013A-56PVXC
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Cypress Semiconductor 8-bit Microcontrollers - MCU EZ USB FX2LP LO PWR LO COM
Page 228

Data Sheet
2,472
In Stock
Alternative Packaging
1: $9.81
10: $8.92
25: $8.47
100: $8.02
250: View



Min.: 1
Mult.: 1
8051 8 bit/16 bit 48 MHz 16 kB No + 70 C SMD/SMT SSOP-56
Microchip Technology PIC18F6722-I/PT
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Microchip Technology 8-bit Microcontrollers - MCU FLASH MICROCONTROLLER
Page 254

Data Sheet
1,972
In Stock
Alternative Packaging
1: $9.88
10: $8.23
25: $8.04
100: $7.84



Min.: 1
Mult.: 1
PIC 8 bit 8 MHz 128 kB 4 kB Yes + 85 C SMD/SMT TQFP-64
Atmel AT89C51RC2-3CSUM
Enlarge
Atmel 8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V
Page 217

Data Sheet
3,679
In Stock
1: $9.99
10: $8.99
25: $8.20
50: $7.99
100: View



Min.: 1
Mult.: 1
8051 8 bit 60 MHz 32 kB 1280 B No + 85 C Through Hole PDIL-40
Atmel AT90CAN128-16MU
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Atmel 8-bit Microcontrollers - MCU AVRC11N AVR UC 128K FLASH
Data Sheet 2,548
In Stock
Alternative Packaging
1: $10.30
10: $9.36
25: $8.66
50: $8.24
100: View



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 128 kB 4 kB Yes + 85 C SMD/SMT QFN-64
Microchip Technology PIC18F8722-I/PT
Enlarge
Microchip Technology 8-bit Microcontrollers - MCU 128 KB FL 4K RAM 70 I/O
Page 254

Data Sheet
2,202
In Stock
More Info Available
Alternative Packaging
1: $10.49
10: $8.74
25: $8.53
100: $8.32



Min.: 1
Mult.: 1
PIC 8 bit 40 MHz 128 kB 4 kB Yes + 125 C SMD/SMT TQFP-80
Texas Instruments MSP430F5437AIPN
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Texas Instruments 16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr Microcontroller
Page 275

Data Sheet
4,428
In Stock
Alternative Packaging
1: $10.68
10: $9.62
25: $9.02
50: $8.76
100: View



Min.: 1
Mult.: 1
MSP430 16 bit 25 MHz 256 kB 16 kB + 85 C SMD/SMT LQFP-80
Atmel ATSAM3U4EA-AU
Enlarge
Atmel ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Page 221

Data Sheet
3,119
In Stock
1: $10.78
10: $9.71
25: $8.84
50: $8.63
100: View



Min.: 1
Mult.: 1
ARM Cortex M3 32 bit 96 MHz 256 kB 52 kB + 85 C SMD/SMT LQFP-144
Atmel AT89C51ED2-SLSUM
Enlarge
Atmel 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V
Page 217

Data Sheet
2,572
In Stock
1: $10.90
10: $9.81
25: $8.94
50: $8.72
100: View



Min.: 1
Mult.: 1
8051 8 bit 60 MHz 64 kB 2 kB No + 85 C SMD/SMT PLCC
Atmel AT89C51ED2-RLTUM
Enlarge
Atmel 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V
Page 217

Data Sheet
5,079
In Stock
1: $10.90
10: $9.81
25: $8.94
50: $8.72
100: View



Min.: 1
Mult.: 1
8051 8 bit 60 MHz 64 kB 2 kB No + 85 C SMD/SMT VQFP-44
Atmel ATMEGA640-16AU
Enlarge
Atmel 8-bit Microcontrollers - MCU 64kB Flash 4kB EEPROM 86 I/O Pins
Page 219

Data Sheet
2,421
In Stock
Alternative Packaging
1: $10.98
10: $9.98
25: $9.23
50: $8.78
100: View



Min.: 1
Mult.: 1
AVR 8 bit 16 MHz 64 kB 8 kB Yes + 85 C SMD/SMT TQFP-100
Texas Instruments MSP430F5438AIPZ
Enlarge
Texas Instruments 16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr Microcontroller
Page 275

Data Sheet
3,025
In Stock
Alternative Packaging
1: $11.36
10: $10.22
25: $9.59
50: $9.31
100: View



Min.: 1
Mult.: 1
MSP430 16 bit 25 MHz 256 kB 16 kB + 85 C SMD/SMT LQFP-100
NXP Semiconductors LPC1778FBD144,551
Enlarge
NXP Semiconductors ARM Microcontrollers - MCU CORTEX-M3 512KB FL 96KB SRAM USB 2.0
Data Sheet 3,319
In Stock
1: $11.61
10: $10.46
25: $9.53
100: $8.60
250: View



Min.: 1
Mult.: 1
ARM Cortex M3 32 bit 120 MHz 512 kB 64 kB + 85 C SMD/SMT LQFP-144
Freescale Semiconductor MK60DN512VMD10
Enlarge
Freescale Semiconductor ARM Microcontrollers - MCU KINETIS 512K ENET
Page 232

Data Sheet
2,700
In Stock
1: $11.79
10: $11.13
25: $10.50
100: $7.22



Min.: 1
Mult.: 1
ARM Cortex M4 32 bit 100 MHz 512 kB 4 kB + 105 C SMD/SMT MAPBGA-144
Atmel AT91SAM7S256D-MU
Enlarge
Atmel ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
Data Sheet 1,766
In Stock
1: $11.92
10: $10.83
25: $10.02
50: $9.53
100: View



Min.: 1
Mult.: 1
ARM7TDMI 16 bit/32 bit 55 MHz 256 kB 64 kB + 85 C SMD/SMT VFQFN-64
Texas Instruments MSP430F2419TPM
Enlarge
Texas Instruments 16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU
Page 274

Data Sheet
2,165
In Stock
Alternative Packaging
1: $11.92
10: $10.73
25: $10.06
50: $9.77
100: View



Min.: 1
Mult.: 1
MSP430 16 bit 16 MHz 120 kB 8 kB + 105 C SMD/SMT LQFP-64
Atmel AT91SAM9260B-CU
Enlarge
Atmel ARM Microcontrollers - MCU 32-bit
Page 222

Data Sheet
2,894
In Stock
1: $13.16
10: $11.96
25: $11.06
50: $10.52
100: View



Min.: 1
Mult.: 1
ARM926EJ 32 bit 210 MHz 32 kB 4 kB + 85 C SMD/SMT BGA-217
Atmel AT91SAM7SE256B-AU
Enlarge
Atmel ARM Microcontrollers - MCU IND TEMP MRLB
Data Sheet 1,483
In Stock
1: $13.82
10: $12.56
25: $11.61
50: $11.05
100: View



Min.: 1
Mult.: 1
ARM7TDMI 32 bit 48 MHz 256 kB 32 kB + 85 C SMD/SMT LQFP-128
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