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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-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

STM32L433CCT3
STMicroelectronics
1: £5.20
1,104On Order

Mfr. Part No.
STM32L433CCT3

Mouser Part No
511-STM32L433CCT3

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

Learn More

Datasheet

1,104On Order

£5.20

£4.00

£3.51

£3.35

£3.30

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

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

38 I/O

- 40 C

+ 125 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

STM32L433CCT6
STMicroelectronics
1: £4.58
2,719In Stock

Mfr. Part No.
STM32L433CCT6

Mouser Part No
511-STM32L433CCT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

Learn More

Datasheet

2,719In Stock

£4.58

£3.51

£3.07

£2.93

£2.71

Min.: 1
Mult.: 1
Max.: 500

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

38 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

STM32L433CCU3
STMicroelectronics
1: £5.05
893In Stock

Mfr. Part No.
STM32L433CCU3

Mouser Part No
511-STM32L433CCU3

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

Learn More

Datasheet

893In Stock

£5.05

£3.88

£3.40

£3.25

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

ARM Microcontrollers - MCU

SMD/SMT

QFN-48

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

38 I/O

- 40 C

+ 125 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

STM32L433CCU6
STMicroelectronics
1: £4.45
3,067In Stock
3,120Expected 10/12/2026

Mfr. Part No.
STM32L433CCU6

Mouser Part No
511-STM32L433CCU6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

Learn More

Datasheet

3,067In Stock

3,120Expected 10/12/2026

£4.45

£3.40

£2.98

£2.85

£2.62

Min.: 1
Mult.: 1
Max.: 750

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-48

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

38 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

STM32L433CCY6TR
STMicroelectronics
1: £5.12
2,059In Stock

Mfr. Part No.
STM32L433CCY6TR

Mouser Part No
511-STM32L433CCY6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

Learn More

Datasheet

2,059In Stock

Cut Tape

£5.12

£3.76

£3.51

£3.08

View

Reel

£2.63

MouseReel Available

Min.: 1
Mult.: 1
Max.: 500

: 5,000

ARM Microcontrollers - MCU

SMD/SMT

WLCSP-48

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

38 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

STM32L433RCI6
STMicroelectronics
1: £4.80
2,143In Stock

Mfr. Part No.
STM32L433RCI6

Mouser Part No
511-STM32L433RCI6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

Learn More

Datasheet

2,143In Stock

£4.80

£3.68

£3.23

£3.08

£2.85

Min.: 1
Mult.: 1
Max.: 500

ARM Microcontrollers - MCU

SMD/SMT

UFBGA-64

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

52 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

STM32L433VCT6TR
STMicroelectronics
1: £5.61
622In Stock

Mfr. Part No.
STM32L433VCT6TR

Mouser Part No
511-STM32L433VCT6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB

Learn More

Datasheet

622In Stock

Cut Tape

£5.61

£4.32

£3.80

£3.64

£3.57

Reel

£3.57

MouseReel Available

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

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

83 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB, AES-2

STM32L443RCT6
STMicroelectronics
1: £6.13
2,499In Stock

Mfr. Part No.
STM32L443RCT6

Mouser Part No
511-STM32L443RCT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB, AES-2

Learn More

Datasheet

2,499In Stock

£6.13

£4.50

£4.19

£3.68

View

Min.: 1
Mult.: 1
Max.: 500

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

52 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB, AES-2

STM32L443VCT6
STMicroelectronics
1: £6.29
511In Stock

Mfr. Part No.
STM32L443VCT6

Mouser Part No
511-STM32L443VCT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB, AES-2

Learn More

Datasheet

511In Stock

£6.29

£4.43

£4.16

£3.75

£3.61

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

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

80 MHz

256 kB

64 kB

12 bit

83 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash , DFSDM

STM32L451VCT6
STMicroelectronics
1: £5.70
2,314In Stock

Mfr. Part No.
STM32L451VCT6

Mouser Part No
511-STM32L451VCT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash , DFSDM

Learn More

Datasheet

2,314In Stock

£5.70

£4.07

£3.75

£3.54

£3.44

Min.: 1
Mult.: 1
Max.: 500

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

80 MHz

256 kB

160 kB

12 bit

83 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash USB Device, DFS

STM32L452CCU6
STMicroelectronics
1: £4.78
2,861In Stock

Mfr. Part No.
STM32L452CCU6

Mouser Part No
511-STM32L452CCU6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash USB Device, DFS

Learn More

Datasheet

2,861In Stock

£4.78

£3.65

£3.20

£3.06

£2.83

Min.: 1
Mult.: 1
Max.: 500

ARM Microcontrollers - MCU

SMD/SMT

QFN-48

ARM Cortex M4

32 bit

80 MHz

256 kB

160 kB

12 bit

38 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash USB OTG, DFSDM

STM32L475RCT3
STMicroelectronics
1: £6.61
1,174In Stock

Mfr. Part No.
STM32L475RCT3

Mouser Part No
511-STM32L475RCT3

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash USB OTG, DFSDM

Learn More

Datasheet

1,174In Stock

£6.61

£5.12

£4.51

£4.32

£4.27

Min.: 1
Mult.: 1
Max.: 300

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

80 MHz

256 kB

128 kB

3 x 12 bit

51 I/O

- 40 C

+ 125 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB OTG, D

STM32L476VCT6
STMicroelectronics
1: £6.69
1,676In Stock
1,620On Order

Mfr. Part No.
STM32L476VCT6

Mouser Part No
511-STM32L476VCT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB OTG, D

Learn More

Datasheet

1,676In Stock

1,620On Order

£6.69

£4.81

£4.43

£4.20

£4.09

Min.: 1
Mult.: 1
Max.: 500

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

80 MHz

256 kB

128 kB

3 x 12 bit

82 I/O

- 40 C

+ 85 C

Tray

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

STM32L552RCT6
STMicroelectronics
1: £8.26
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

£8.26

£6.42

£5.69

£5.32

£5.19

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: £5.04
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

£5.04

£4.12

£3.94

£3.54

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: £12.03
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

£12.03

£10.93

£9.90

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: £6.95
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

£6.95

£6.73

£5.72

Reel

£5.72

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 32-bit

AT32UC3B1256-AUT
Microchip Technology
1: £6.48
2,243In Stock

Mfr. Part No.
AT32UC3B1256-AUT

Mouser Part No
556-AT32UC3B1256-AUT

Microchip Technology

32-bit Microcontrollers - MCU 32-bit

Learn More

Datasheet

2,243In Stock

£6.48

£5.88

£5.33

Min.: 1
Mult.: 1

32-bit Microcontrollers - MCU

SMD/SMT

TQFP-48

AVR

32 bit

60 MHz

256 kB

32 kB

10 bit

28 I/O

- 40 C

+ 85 C

Tray

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

AT32UC3C2256C-A2UR
Microchip Technology
1: £9.34
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

£9.34

£9.03

£7.70

Reel

£7.70

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

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

AT32UC3C2256C-A2UT
Microchip Technology
1: £9.19
Lead-Time 32 Weeks

Mfr. Part No.
AT32UC3C2256C-A2UT

Mouser Part No
556-AT32UC3C2256CA2T

Microchip Technology

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

Learn More

Datasheet

Lead-Time 32 Weeks

£9.19

£8.35

£7.56

Min.: 1
Mult.: 1

32-bit Microcontrollers - MCU

SMD/SMT

TQFP-64

AVR

32 bit

66 MHz

256 kB

64 kB

12 bit

45 I/O

- 40 C

+ 85 C

Tray

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

AT91SAM7S256D-MU
Microchip Technology
1: £8.19
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

£8.19

£8.18

£7.53

£7.14

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: £9.50
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

£9.50

£8.65

£8.48

£7.68

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: £11.87
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

£11.87

£10.89

£9.86

£9.66

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: £5.66
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

£5.66

Reel

£5.66

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: £5.66
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

£5.66

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

256 kB Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

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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