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256 kB Embedded Processors & Controllers

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Types of Embedded Processors & Controllers

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Results: 4,675

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Program Memory Size = 256 kB

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Part #

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 256 kbytes of Flash

STM32L552RCT6
STMicroelectronics
1: $11.00
900In Stock

Mfr. Part No.
STM32L552RCT6

Mouser Part No
511-STM32L552RCT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 256 kbytes of Flash

Learn More

Datasheet

900In Stock

$11.00

$8.55

$7.58

$7.08

$6.91

Min.: 1
Mult.: 1
Max.: 250

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M33

32 bit

110 MHz

256 kB

2 x 12 bit

52 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 64MHz Cortex-M0+ 32MHz 256Kbytes Flash

STM32WB35CCU6A
STMicroelectronics
1: $6.71
1,680In Stock

Mfr. Part No.
STM32WB35CCU6A

Mouser Part No
511-STM32WB35CCU6A

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 64MHz Cortex-M0+ 32MHz 256Kbytes Flash

Learn More

Datasheet

1,680In Stock

$6.71

$5.49

$5.24

$4.72

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-48

ARM Cortex M4

32 bit

32 MHz

256 kB

12 bit

72 I/O

- 40 C

+ 105 C

Tray

32-bit Microcontrollers - MCU 256KB, 144LQFP Ind

AT32UC3A3256-ALUT
Microchip Technology
1: $16.02
473In Stock

Mfr. Part No.
AT32UC3A3256-ALUT

Mouser Part No
556-AT32UC3A3256ALUT

Microchip Technology

32-bit Microcontrollers - MCU 256KB, 144LQFP Ind

Learn More

Datasheet

473In Stock

$16.02

$14.56

$13.19

Min.: 1
Mult.: 1

32-bit Microcontrollers - MCU

SMD/SMT

LQFP-144

AVR

32 bit

84 MHz

256 kB

128 kB

10 bit

110 I/O

- 40 C

+ 85 C

Tray

32-bit Microcontrollers - MCU 256KB, 64QFP 85deg. Green

AT32UC3B0256-A2UR
Microchip Technology
1: $9.25
325In Stock

Mfr. Part No.
AT32UC3B0256-A2UR

Mouser Part No
556-AT32UC3B0256A2UR

Microchip Technology

32-bit Microcontrollers - MCU 256KB, 64QFP 85deg. Green

Learn More

Datasheet

325In Stock

Cut Tape

$9.25

$8.96

$7.62

Reel

$7.62

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

32-bit Microcontrollers - MCU

SMD/SMT

TQFP-64

AVR

32 bit

60 MHz

256 kB

32 kB

10 bit

44 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

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

Mfr. Part No.
AT32UC3C2256C-A2UR

Mouser Part No
556-AT32UC3C2256CA2R

Microchip Technology

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

Learn More

Datasheet

609In Stock

Cut Tape

$12.44

$12.02

$10.26

Reel

$10.26

Quote

Min.: 1
Mult.: 1

: 1,500

32-bit Microcontrollers - MCU

AVR

32 bit

66 MHz

256 kB

64 kB

45 I/O

- 40 C

+ 85 C

Reel, Cut Tape

ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU

AT91SAM7S256D-MU
Microchip Technology
1: $10.91
309In Stock

Mfr. Part No.
AT91SAM7S256D-MU

Mouser Part No
556-AT91SAM7S256D-MU

Microchip Technology

ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU

Datasheet

309In Stock

$10.91

$10.89

$10.04

$9.51

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

QFN-64

ARM7TDMI

32 bit/16 bit

55 MHz

256 kB

64 kB

10 bit

32 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LQFP GRN IND TMP MRL C

AT91SAM7X256C-AU
Microchip Technology
1: $12.65
201In Stock
3,150Expected 26/01/2027

Mfr. Part No.
AT91SAM7X256C-AU

Mouser Part No
556-AT91SAM7X256C-AU

Microchip Technology

ARM Microcontrollers - MCU LQFP GRN IND TMP MRL C

Datasheet

201In Stock

3,150Expected 26/01/2027

$12.65

$11.52

$11.29

$10.23

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM7TDMI

32 bit

20 MHz

256 kB

64 kB

10 bit

62 I/O

- 40 C

+ 85 C

Tray

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

ATMEGA2561V-8MU
Microchip Technology
1: $15.81
686In Stock

Mfr. Part No.
ATMEGA2561V-8MU

Mouser Part No
556-ATMEGA2561V8MU

Microchip Technology

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

Learn More

Datasheet

686In Stock

$15.81

$14.50

$13.13

Quote

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

MLF-64

AVR

8 bit

8 MHz

256 kB

8 kB

10 bit

54 I/O

- 40 C

+ 85 C

Tray

RF Microcontrollers - MCU 2.4GHZ 802.15.4 256K SOC 48pin T&R

ATMEGA2564RFR2-ZUR
Microchip Technology
1: $7.53
1,040In Stock
4,000Expected 26/10/2026

Mfr. Part No.
ATMEGA2564RFR2-ZUR

Mouser Part No
556-ATMEGA2564RFR2Z

Microchip Technology

RF Microcontrollers - MCU 2.4GHZ 802.15.4 256K SOC 48pin T&R

Learn More

Datasheet

1,040In Stock

4,000Expected 26/10/2026

Cut Tape

$7.53

Reel

$7.53

Min.: 1
Mult.: 1

: 4,000

RF Microcontrollers - MCU

SMD/SMT

QFN-48

AVR

8 bit

16 MHz

256 kB

32 kB

10 bit

- 40 C

+ 125 C

Reel, Cut Tape

RF Microcontrollers - MCU 2.4GHZ 802.15.4 256K SOC 48pin

ATMEGA2564RFR2-ZU
Microchip Technology
1: $7.53
416In Stock

Mfr. Part No.
ATMEGA2564RFR2-ZU

Mouser Part No
556-ATMEGA2564RFR2ZU

Microchip Technology

RF Microcontrollers - MCU 2.4GHZ 802.15.4 256K SOC 48pin

Learn More

Datasheet

416In Stock

$7.53

Min.: 1
Mult.: 1

RF Microcontrollers - MCU

SMD/SMT

QFN-48

AVR

8 bit

16 MHz

256 kB

32 kB

10 bit

38 I/O

- 40 C

+ 85 C

Tray

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

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

Mfr. Part No.
ATSAM3S4BA-AU

Mouser Part No
556-ATSAM3S4BA-AU

Microchip Technology

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

Learn More

Datasheet

1,756In Stock

$6.54

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

QFP-64

ARM Cortex M3

32 bit

64 MHz

256 kB

48 kB

12 bit

47 I/O

- 40 C

+ 85 C

Tray

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

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

Mfr. Part No.
ATSAM4LS4AA-MU

Mouser Part No
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

ARM Microcontrollers - MCU

SMD/SMT

QFN-48

ARM Cortex M4

32 bit

48 MHz

256 kB

32 kB

12 bit

32 I/O

- 40 C

+ 85 C

Tray

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

ATSAM4LS4BA-AU
Microchip Technology
1: $6.78
346In Stock

Mfr. Part No.
ATSAM4LS4BA-AU

Mouser Part No
556-ATSAM4LS4BA-AU

Microchip Technology

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

Learn More

Datasheet

346In Stock

$6.78

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

TQFP-64

ARM Cortex M4

32 bit

48 MHz

256 kB

32 kB

12 bit

48 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LQFPGRNIND TEMPMRL A

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

Mfr. Part No.
ATSAM4S4AA-AU

Mouser Part No
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

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

120 MHz

256 kB

64 kB

12 bit

34 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Cortx-M0+256KB FLASH

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

Mfr. Part No.
ATSAMD20E18A-MUT

Mouser Part No
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

ARM Microcontrollers - MCU

SMD/SMT

QFN-32

ARM Cortex M0

32 bit

48 MHz

256 kB

32 kB

12 bit

26 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

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

Mfr. Part No.
ATSAMD20G18A-MUT

Mouser Part No
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

ARM Microcontrollers - MCU

SMD/SMT

QFN-48

ARM Cortex M0+

32 bit

48 MHz

256 kB

32 kB

12 bit

38 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

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

Mfr. Part No.
ATSAMD21E18A-AU

Mouser Part No
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

ARM Microcontrollers - MCU

SMD/SMT

TQFP-32

ARM Cortex M0+

32 bit

48 MHz

256 kB

32 kB

12 bit

26 I/O

- 40 C

+ 85 C

AEC-Q100

Tray

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

ATSAMD51J18A-AU
Microchip Technology
1: $5.04
1,111In Stock

Mfr. Part No.
ATSAMD51J18A-AU

Mouser Part No
556-ATSAMD51J18AAU

Microchip Technology

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

Learn More

Datasheet

1,111In Stock

$5.04

$4.61

$4.17

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

TQFP-64

ARM Cortex M4F

32 bit

120 MHz

256 kB

128 kB

12 bit

51 I/O

- 40 C

+ 85 C

AEC-Q100

Tray

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

ATSAMD51J18A-AUT
Microchip Technology
1: $5.17
1,348In Stock
1,500Expected 17/09/2027

Mfr. Part No.
ATSAMD51J18A-AUT

Mouser Part No
556-ATSAMD51J18AAUT

Microchip Technology

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

Learn More

Datasheet

1,348In Stock

1,500Expected 17/09/2027

Cut Tape

$5.17

$5.02

$4.28

Reel

$4.28

Min.: 1
Mult.: 1

: 1,500

ARM Microcontrollers - MCU

SMD/SMT

TQFP-64

ARM Cortex M4F

32 bit

120 MHz

256 kB

128 kB

12 bit

51 I/O

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape

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

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

Mfr. Part No.
ATSAME51G18A-MU

Mouser Part No
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

ARM Microcontrollers - MCU

SMD/SMT

VQFN-48

ARM Cortex M4F

32 bit

120 MHz

256 kB

128 kB

12 bit

37 I/O

- 40 C

+ 85 C

AEC-Q100

Tray

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

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

Mfr. Part No.
ATSAME51J18A-AF

Mouser Part No
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

ARM Microcontrollers - MCU

SMD/SMT

TQFP-64

ARM Cortex M4F

32 bit

120 MHz

256 kB

128 kB

12 bit

51 I/O

- 40 C

+ 125 C

AEC-Q100

Tray

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

ATSAME51J18A-AUT
Microchip Technology
1: $5.68
1,468In Stock

Mfr. Part No.
ATSAME51J18A-AUT

Mouser Part No
556-ATSAME51J18AAUT

Microchip Technology

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

Learn More

Datasheet

1,468In Stock

Cut Tape

$5.68

$5.51

$4.71

Reel

$4.71

Min.: 1
Mult.: 1

: 1,500

ARM Microcontrollers - MCU

SMD/SMT

TQFP-64

ARM Cortex M4F

32 bit

120 MHz

256 kB

128 kB

12 bit

51 I/O

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape

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

ATSAME51J18A-MU
Microchip Technology
1: $5.75
1,017In Stock

Mfr. Part No.
ATSAME51J18A-MU

Mouser Part No
556-ATSAME51J18AMU

Microchip Technology

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

Learn More

Datasheet

1,017In Stock

$5.75

$5.28

$4.78

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

QFN-64

ARM Cortex M4F

32 bit

120 MHz

256 kB

128 kB

12 bit

51 I/O

- 40 C

+ 85 C

AEC-Q100

Tray

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

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

Mfr. Part No.
ATSAME53J18A-MU

Mouser Part No
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

ARM Microcontrollers - MCU

SMD/SMT

QFN-64

ARM Cortex M4F

32 bit

120 MHz

256 kB

128 kB

12 bit

51 I/O

- 40 C

+ 85 C

AEC-Q100

Tray

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

ATSAML21E18B-MUT
Microchip Technology
1: $5.95
820In Stock

Mfr. Part No.
ATSAML21E18B-MUT

Mouser Part No
556-ATSAML21E18B-MUT

Microchip Technology

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

Learn More

Datasheet

820In Stock

Cut Tape

$5.95

$5.76

Reel

$5.75

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ARM Microcontrollers - MCU

SMD/SMT

VQFN-32

ARM Cortex M0+

32 bit

48 MHz

256 kB

32 kB

12 bit

25 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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-43
CSP-48
CSP-64
Die
FCBGA-288

8051
56800E
80515
56800EX
78K0R
APS3
ARM7TDMI
ARM7TDMI-S
ARM Cortex M0
ARM Cortex M0, ARM Cortex M4
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

32.768 kHz
32.768 kHz, 26 MHz
1 MHz
4.2 MHz
8 MHz
8.4 MHz
10 MHz
16 MHz
20 MHz
24 MHz
25 MHz
30 MHz
32 MHz
33 MHz
36 MHz
39 MHz
40 MHz
48 MHz
50 MHz
50.33 MHz

64
256 B
1.5 kB
2 kB
4 kB
8 kB
8 kB, 32 kB
12 kB
16 kB
16 kB, 32 kB
18 KB
18 kB
20 kB
24 KB
24 kB
25 kB
28 kB
30 kB
32 KB
32 kB

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
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

10 I/O
12 I/O
13 I/O
14 I/O
15 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