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256 kB Embedded Processors & Controllers

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Results: 4,854

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Program Memory Size = 256 kB

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Part #

32-bit Microcontrollers - MCU 32-bit

AT32UC3B1256-AUT
Microchip Technology
1: $8.63
743In Stock
1,500Expected 9/11/2026

Mfr. Part #
AT32UC3B1256-AUT

Mouser Part #
556-AT32UC3B1256-AUT

Microchip Technology

32-bit Microcontrollers - MCU 32-bit

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Datasheet

743In Stock

1,500Expected 9/11/2026

$8.63

$7.84

$7.11

Min.: 1
Mult.: 1

SMD/SMT

TQFP-48

AVR

28 I/O

32 bit

10 bit

32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM

AT32UC3C2256C-A2UR
Microchip Technology
1: $12.44
609In Stock

Mfr. Part #
AT32UC3C2256C-A2UR

Mouser Part #
556-AT32UC3C2256CA2R

Microchip Technology

32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM

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Datasheet

609In Stock

Cut Tape

$12.44

$12.02

$10.26

Reel

$10.26

Quote

Min.: 1
Mult.: 1

: 1,500

AVR

45 I/O

32 bit

32-bit Microcontrollers - MCU UC3C 512K FLASH 64K SRAM

AT32UC3C2256C-A2UT
Microchip Technology
1: $12.24
403In Stock

Mfr. Part #
AT32UC3C2256C-A2UT

Mouser Part #
556-AT32UC3C2256CA2T

Microchip Technology

32-bit Microcontrollers - MCU UC3C 512K FLASH 64K SRAM

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Datasheet

403In Stock

$12.24

$11.12

$10.07

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

AVR

45 I/O

32 bit

12 bit

ARM Microcontrollers - MCU LQFP GRN IND TMP MRL C

AT91SAM7X256C-AU
Microchip Technology
1: $12.65
201In Stock
3,150Expected 1/26/2027

Mfr. Part #
AT91SAM7X256C-AU

Mouser Part #
556-AT91SAM7X256C-AU

Microchip Technology

ARM Microcontrollers - MCU LQFP GRN IND TMP MRL C

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Datasheet

201In Stock

3,150Expected 1/26/2027

$12.65

$11.52

$11.29

$10.23

Min.: 1
Mult.: 1

SMD/SMT

LQFP-100

ARM7TDMI

62 I/O

32 bit

10 bit

8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 1.8V

ATMEGA2561V-8MU
Microchip Technology
1: $15.81
696In Stock

Mfr. Part #
ATMEGA2561V-8MU

Mouser Part #
556-ATMEGA2561V8MU

Microchip Technology

8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 1.8V

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Datasheet

696In Stock

$15.81

$14.50

$13.13

Quote

Min.: 1
Mult.: 1

SMD/SMT

MLF-64

AVR

54 I/O

8 bit

10 bit

ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp

ATSAM3S4BA-AU
Microchip Technology
1: $6.54
1,756In Stock

Mfr. Part #
ATSAM3S4BA-AU

Mouser Part #
556-ATSAM3S4BA-AU

Microchip Technology

ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp

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Datasheet

1,756In Stock

$6.54

Min.: 1
Mult.: 1

SMD/SMT

QFP-64

ARM Cortex M3

47 I/O

32 bit

12 bit

ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A

ATSAM4LS4AA-MU
Microchip Technology
1: $6.60
430In Stock

Mfr. Part #
ATSAM4LS4AA-MU

Mouser Part #
556-ATSAM4LS4AA-MU

Microchip Technology

ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A

Learn More

Datasheet

430In Stock

$6.60

$6.02

$5.45

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

ARM Cortex M4

32 I/O

32 bit

12 bit

ARM Microcontrollers - MCU TQFP, Green, IND TEMP, CRYPTO, MRL A

ATSAM4LS4BA-AU
Microchip Technology
1: $6.78
668In Stock

Mfr. Part #
ATSAM4LS4BA-AU

Mouser Part #
556-ATSAM4LS4BA-AU

Microchip Technology

ARM Microcontrollers - MCU TQFP, Green, IND TEMP, CRYPTO, MRL A

Learn More

Datasheet

668In Stock

$6.78

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

ARM Cortex M4

48 I/O

32 bit

12 bit

ARM Microcontrollers - MCU LQFPGRNIND TEMPMRL A

ATSAM4S4AA-AU
Microchip Technology
1: $4.78
2,331In Stock

Mfr. Part #
ATSAM4S4AA-AU

Mouser Part #
556-ATSAM4S4AA-AU

Microchip Technology

ARM Microcontrollers - MCU LQFPGRNIND TEMPMRL A

Learn More

Datasheet

2,331In Stock

$4.78

$4.35

$3.95

Min.: 1
Mult.: 1

SMD/SMT

LQFP-48

ARM Cortex M4

34 I/O

32 bit

12 bit

ARM Microcontrollers - MCU Cortx-M0+256KB FLASH

ATSAMD20E18A-MUT
Microchip Technology
1: $3.15
2,743In Stock

Mfr. Part #
ATSAMD20E18A-MUT

Mouser Part #
556-ATSAMD20E18A-MUT

Microchip Technology

ARM Microcontrollers - MCU Cortx-M0+256KB FLASH

Learn More

Datasheet

2,743In Stock

Cut Tape

$3.15

$3.02

Reel

$2.60

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

QFN-32

ARM Cortex M0

26 I/O

32 bit

12 bit

ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM

ATSAMD20G18A-MUT
Microchip Technology
1: $3.31
1,348In Stock

Mfr. Part #
ATSAMD20G18A-MUT

Mouser Part #
556-ATSAMD20G18A-MUT

Microchip Technology

ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM

Learn More

Datasheet

1,348In Stock

Cut Tape

$3.31

$3.20

Reel

$2.72

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

SMD/SMT

QFN-48

ARM Cortex M0+

38 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz

ATSAMD21E18A-AU
Microchip Technology
1: $3.96
694In Stock

Mfr. Part #
ATSAMD21E18A-AU

Mouser Part #
556-ATSAMD21E18A-AU

Microchip Technology

ARM Microcontrollers - MCU 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz

Learn More

Datasheet

694In Stock

$3.96

Min.: 1
Mult.: 1

SMD/SMT

TQFP-32

ARM Cortex M0+

26 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C

ATSAMD51J18A-AU
Microchip Technology
1: $5.04
1,113In Stock

Mfr. Part #
ATSAMD51J18A-AU

Mouser Part #
556-ATSAMD51J18AAU

Microchip Technology

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C

Learn More

Datasheet

1,113In Stock

$5.04

$4.61

$4.17

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

ARM Cortex M4F

51 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C

ATSAMD51J18A-AUT
Microchip Technology
1: $5.17
1,348In Stock

Mfr. Part #
ATSAMD51J18A-AUT

Mouser Part #
556-ATSAMD51J18AAUT

Microchip Technology

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C

Learn More

Datasheet

1,348In Stock

Cut Tape

$5.17

$5.02

$4.28

Reel

$4.28

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

TQFP-64

ARM Cortex M4F

51 I/O

32 bit

12 bit

ARM Microcontrollers - MCU CM4, QFN 48, 256KB Flash, USB,CAN, Indus.85C, Tray

ATSAME51G18A-MU
Microchip Technology
1: $5.54
730In Stock

Mfr. Part #
ATSAME51G18A-MU

Mouser Part #
556-ATSAME51G18A-MU

Microchip Technology

ARM Microcontrollers - MCU CM4, QFN 48, 256KB Flash, USB,CAN, Indus.85C, Tray

Learn More

Datasheet

730In Stock

$5.54

$5.09

$4.61

Min.: 1
Mult.: 1

SMD/SMT

VQFN-48

ARM Cortex M4F

37 I/O

32 bit

12 bit

ARM Microcontrollers - MCU CM4, TQFP 64, 256KFlash,Tray, USB,CAN ,Extended Temp

ATSAME51J18A-AF
Microchip Technology
1: $6.10
263In Stock

Mfr. Part #
ATSAME51J18A-AF

Mouser Part #
556-ATSAME51J18A-AF

Microchip Technology

ARM Microcontrollers - MCU CM4, TQFP 64, 256KFlash,Tray, USB,CAN ,Extended Temp

Learn More

Datasheet

263In Stock

$6.10

$6.09

$5.70

$5.68

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

ARM Cortex M4F

51 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C

ATSAME51J18A-AUT
Microchip Technology
1: $5.68
1,493In Stock

Mfr. Part #
ATSAME51J18A-AUT

Mouser Part #
556-ATSAME51J18AAUT

Microchip Technology

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C

Learn More

Datasheet

1,493In Stock

Cut Tape

$5.68

$5.51

$4.71

Reel

$4.71

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

TQFP-64

ARM Cortex M4F

51 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 QFN PKG 85C

ATSAME51J18A-MU
Microchip Technology
1: $5.75
1,301In Stock

Mfr. Part #
ATSAME51J18A-MU

Mouser Part #
556-ATSAME51J18AMU

Microchip Technology

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 QFN PKG 85C

Learn More

Datasheet

1,301In Stock

$5.75

$5.28

$4.78

Min.: 1
Mult.: 1

SMD/SMT

QFN-64

ARM Cortex M4F

51 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 QFN PKG 85C

ATSAME53J18A-MU
Microchip Technology
1: $5.90
506In Stock

Mfr. Part #
ATSAME53J18A-MU

Mouser Part #
556-ATSAME53J18AMU

Microchip Technology

ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 QFN PKG 85C

Learn More

Datasheet

506In Stock

$5.90

Min.: 1
Mult.: 1

SMD/SMT

QFN-64

ARM Cortex M4F

51 I/O

32 bit

12 bit

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

ATSAML21E18B-MUT
Microchip Technology
1: $5.95
1,145In Stock

Mfr. Part #
ATSAML21E18B-MUT

Mouser Part #
556-ATSAML21E18B-MUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

Learn More

Datasheet

1,145In Stock

Cut Tape

$5.95

$5.76

Reel

$5.75

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

VQFN-32

ARM Cortex M0+

25 I/O

32 bit

12 bit

ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,32MHz

ATSAML22J18A-AUT
Microchip Technology
1: $5.69
1,232In Stock

Mfr. Part #
ATSAML22J18A-AUT

Mouser Part #
556-ATSAML22J18A-AUT

Microchip Technology

ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,32MHz

Learn More

Datasheet

1,232In Stock

Cut Tape

$5.69

$5.48

$4.68

Reel

$4.68

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

TQFP-64

ARM Cortex M0+

50 I/O

32 bit

12 bit

32-bit Microcontrollers - MCU UC3L-256KB Fl 48QFP 85C Grn

ATUC256L4U-AUT
Microchip Technology
1: $10.04
247In Stock

Mfr. Part #
ATUC256L4U-AUT

Mouser Part #
556-ATUC256L4U-AUT

Microchip Technology

32-bit Microcontrollers - MCU UC3L-256KB Fl 48QFP 85C Grn

Learn More

Datasheet

247In Stock

$10.04

$9.14

$8.78

$8.77

Min.: 1
Mult.: 1

SMD/SMT

AVR

51 I/O

32 bit

12 bit

8-bit Microcontrollers - MCU 8/16 bit 1.6V-3.6V 256KB + 8KB

ATXMEGA256A3-AU
Microchip Technology
1: $11.81
489In Stock

Mfr. Part #
ATXMEGA256A3-AU

Mouser Part #
556-ATXMEGA256A3-AU

Microchip Technology

8-bit Microcontrollers - MCU 8/16 bit 1.6V-3.6V 256KB + 8KB

Learn More

Datasheet

489In Stock

$11.81

$10.83

$9.79

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

AVR

50 I/O

8 bit/16 bit

12 bit

8-bit Microcontrollers - MCU AVR8 256KB FLSH 16KB

ATXMEGA256A3BU-AU
Microchip Technology
1: $9.24
317In Stock

Mfr. Part #
ATXMEGA256A3BU-AU

Mouser Part #
556-ATXMEGA256A3BUAU

Microchip Technology

8-bit Microcontrollers - MCU AVR8 256KB FLSH 16KB

Datasheet

317In Stock

$9.24

$8.47

$7.67

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

AVR

47 I/O

8 bit/16 bit

12 bit

8-bit Microcontrollers - MCU AVR8 256KB FLSH 16KB

ATXMEGA256A3BU-MH
Microchip Technology
1: $8.92
191In Stock

Mfr. Part #
ATXMEGA256A3BU-MH

Mouser Part #
556-ATXMEGA256A3BUMH

Microchip Technology

8-bit Microcontrollers - MCU AVR8 256KB FLSH 16KB

Datasheet

191In Stock

$8.92

$8.16

$7.40

Min.: 1
Mult.: 1

SMD/SMT

QFN-64

AVR

47 I/O

8 bit/16 bit

12 bit

256 kB Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

BGA-100
BGA-112
BGA-120
BGA-121
BGA-132
BGA-144
BGA-176
BGA-196
BGA-256
BGA-36
BGA-376
BGA-64
BGA-96
BGA-97
CQFP-176
CSP-288
CSP-48
CSP-64
Die
FCBGA-288

56800E
80515
56800EX
78K0R
ARM7TDMI
ARM7TDMI-S
ARM Cortex M0
ARM Cortex M0, ARM Cortex M4
ARM Cortex M0+
ARm Cortex M0+
ARM Cortex M0+, ARM Cortex M4
ARM Cortex M23
ARM Cortex M3
ARM Cortex M33
Arm Cortex -M33
ARM Cortex M4
Arm cortex M4
Arm Cortex -M4
ARM Cortex M4F
ARM Cortex-M4F, ARM Cortex R5F

10 I/O
13 I/O
14 I/O
16 I/O
17 I/O
18 I/O
19 I/O
20 I/O
21 I/O
22 I/O
23 I/O
24 I/O
25 I/O
26 I/O
27 I/O
28 I/O
29 I/O
30 I/O
31 I/O
32 I/O

2 x 10 bit
2 x 12 bit
2 x 16 bit
2 x 6 bit/8 bit/10 bit/12 bit
2 x 8 bit/10 bit/12 bit
3 x 12 bit
4 x 12 bit
4 x 16 bit
4 x 6 bit/8 bit/10 bit/12 bit
5 x 12 bit
8 bit, 10 bit
8 bit/10 bit
8 bit/10 bit/12 bit
10 bit
10 bit, 12 bit
10 bit, 24 bit
10 bit, 2 x 12 bit
10 bit/12 bit
12 bit
12 bit, 14 bit