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STM32 L0 Ultra-Low-Power MCUs

STMicroelectronics STM32 L0 Ultra-Low-Power Microcontrollers (MCUs) feature ultra-low-power and high performance. The combination of an Arm Cortex®-M0+ core and STMicroelectronics STM32 ultra-low-power features makes the STM32 L0 ideal for applications operating on battery or supplied by energy harvesting.

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Part #

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 16-Kbytes of Flash , 32 MHz CPU, AES

STM32L021D4P6
STMicroelectronics
1: ¥378.7
295In Stock
960Expected 9/2/2026

Mfr. Part #
STM32L021D4P6

Mouser Part #
511-STM32L021D4P6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 16-Kbytes of Flash , 32 MHz CPU, AES

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Datasheet

295In Stock

960Expected 9/2/2026

¥378.7

¥255.8

¥220.9

¥204.3

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 16-Kbytes of Flash , 32 MHz CPU, AES

STM32L021K4T6
STMicroelectronics
1: ¥402
142In Stock
4,500On Order

Mfr. Part #
STM32L021K4T6

Mouser Part #
511-STM32L021K4T6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 16-Kbytes of Flash , 32 MHz CPU, AES

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Datasheet

142In Stock

4,500On Order

¥402

¥297.3

¥270.7

¥240.8

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

STM32L031C6T6
STMicroelectronics
1: ¥388.7
895In Stock

Mfr. Part #
STM32L031C6T6

Mouser Part #
511-STM32L031C6T6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

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Datasheet

895In Stock

¥388.7

¥289

¥264.1

¥235.9

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Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

STM32L031C6U6
STMicroelectronics
1: ¥441.8
121In Stock
1,560Expected 1/22/2027

Mfr. Part #
STM32L031C6U6

Mouser Part #
511-STM32L031C6U6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

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Datasheet

121In Stock

1,560Expected 1/22/2027

¥441.8

¥327.2

¥297.3

¥265.8

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

STM32L031F6P6
STMicroelectronics
1: ¥358.8
317In Stock
10,360On Order

Mfr. Part #
STM32L031F6P6

Mouser Part #
511-STM32L031F6P6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

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Datasheet

317In Stock

10,360On Order

¥358.8

¥264.1

¥222.6

¥207.6

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

STM32L031F6P6TR
STMicroelectronics
1: ¥300.6
897In Stock
2,500On Order

Mfr. Part #
STM32L031F6P6TR

Mouser Part #
511-STM32L031F6P6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

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Datasheet

897In Stock

2,500On Order

Cut Tape

¥300.6

¥220.9

¥201

¥179.4

Reel

¥150

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MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

STM32L031G6U6
STMicroelectronics
1: ¥416.9
135In Stock
11,760Expected 1/28/2027

Mfr. Part #
STM32L031G6U6

Mouser Part #
511-STM32L031G6U6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

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Datasheet

135In Stock

11,760Expected 1/28/2027

¥416.9

¥259.1

¥237.5

¥206

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

STM32L031G6U6S
STMicroelectronics
1: ¥387
147In Stock

Mfr. Part #
STM32L031G6U6S

Mouser Part #
511-STM32L031G6U6S

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

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Datasheet

147In Stock

¥387

¥285.7

¥260.8

¥232.5

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Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

STM32L031G6U6STR
STMicroelectronics
1: ¥491.7
147In Stock

Mfr. Part #
STM32L031G6U6STR

Mouser Part #
511-STM32L031G6U6STR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

Learn More

Datasheet

147In Stock

Cut Tape

¥491.7

¥318.9

¥289

¥244.2

Reel

¥172.7

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Min.: 1
Mult.: 1

: 3,000

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

STM32L031K6T6
STMicroelectronics
1: ¥501.6
128In Stock
4,500On Order

Mfr. Part #
STM32L031K6T6

Mouser Part #
511-STM32L031K6T6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32-Kbytes of Flash , 32 MHz CPU

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Datasheet

128In Stock

4,500On Order

¥501.6

¥347.1

¥328.9

¥282.4

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU

STM32L051C8T3
STMicroelectronics
1: ¥508.3
91In Stock
6,000On Order

Mfr. Part #
STM32L051C8T3

Mouser Part #
511-STM32L051C8T3

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU

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Datasheet

91In Stock

6,000On Order

¥508.3

¥380.4

¥348.8

¥313.9

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Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32 Kbytes of Flash , 32 MHz CPU

STM32L051K6U6
STMicroelectronics
1: ¥543.1
81In Stock
2,940Expected 2/22/2027

Mfr. Part #
STM32L051K6U6

Mouser Part #
511-STM32L051K6U6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32 Kbytes of Flash , 32 MHz CPU

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Datasheet

81In Stock

2,940Expected 2/22/2027

¥543.1

¥357.1

¥330.5

¥287.4

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU

STM32L051K8U6
STMicroelectronics
1: ¥486.7
1,032In Stock
5,880On Order

Mfr. Part #
STM32L051K8U6

Mouser Part #
511-STM32L051K8U6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU

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Datasheet

1,032In Stock

5,880On Order

¥486.7

¥320.6

¥300.6

¥269.1

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU

STM32L051K8U6DTR
STMicroelectronics
1: ¥598
8In Stock

Mfr. Part #
STM32L051K8U6DTR

Mouser Part #
511-STM32L051K8U6DTR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU

Learn More

Datasheet

8In Stock

Cut Tape

¥598

¥393.7

¥363.8

¥317.3

View

Reel

¥227.6

Min.: 1
Mult.: 1

: 3,000

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz

STM32L051R8T6
STMicroelectronics
1: ¥543.1
191In Stock
960Expected 3/29/2027

Mfr. Part #
STM32L051R8T6

Mouser Part #
511-STM32L051R8T6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz

Learn More

Datasheet

191In Stock

960Expected 3/29/2027

¥543.1

¥406.9

¥373.7

¥327.2

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz

STM32L051R8T6TR
STMicroelectronics
1: ¥473.4
427In Stock
2,000Expected 12/14/2026

Mfr. Part #
STM32L051R8T6TR

Mouser Part #
511-STM32L051R8T6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz

Learn More

Datasheet

427In Stock

2,000Expected 12/14/2026

Cut Tape

¥473.4

¥353.8

¥323.9

¥290.7

Reel

¥232.5

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MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU

STM32L051T8Y6TR
STMicroelectronics
1: ¥553.1
923In Stock
5,000Expected 8/17/2026

Mfr. Part #
STM32L051T8Y6TR

Mouser Part #
511-STM32L051T8Y6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU

Learn More

Datasheet

923In Stock

5,000Expected 8/17/2026

Cut Tape

¥553.1

¥406.9

¥378.7

¥340.5

View

Reel

¥224.2

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB

STM32L052K8U3TR
STMicroelectronics
1: ¥730.8
9In Stock
6,000Expected 6/7/2027

Mfr. Part #
STM32L052K8U3TR

Mouser Part #
511-STM32L052K8U3TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB

Learn More

Datasheet

9In Stock

6,000Expected 6/7/2027

Cut Tape

¥730.8

¥483.4

¥440.2

¥373.7

View

Reel

¥267.4

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB

STM32L052K8U6
STMicroelectronics
1: ¥544.8
101In Stock
5,880Expected 12/14/2026

Mfr. Part #
STM32L052K8U6

Mouser Part #
511-STM32L052K8U6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB

Learn More

Datasheet

101In Stock

5,880Expected 12/14/2026

¥544.8

¥405.3

¥372.1

¥333.9

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB

STM32L052K8U6TR
STMicroelectronics
1: ¥453.5
101In Stock
6,000On Order

Mfr. Part #
STM32L052K8U6TR

Mouser Part #
511-STM32L052K8U6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB

Learn More

Datasheet

101In Stock

6,000On Order

Cut Tape

¥453.5

¥338.8

¥308.9

¥277.4

View

Reel

¥232.5

Min.: 1
Mult.: 1

: 3,000

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB

STM32L052T8Y6TR
STMicroelectronics
1: ¥509.9
392In Stock

Mfr. Part #
STM32L052T8Y6TR

Mouser Part #
511-STM32L052T8Y6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB

Learn More

Datasheet

392In Stock

Cut Tape

¥509.9

¥382

¥350.5

¥315.6

View

Reel

¥245.8

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32 Kbytes of Flash , 32 MHz CPU, USB, LCD

STM32L053C6T6
STMicroelectronics
1: ¥568.1
211In Stock

Mfr. Part #
STM32L053C6T6

Mouser Part #
511-STM32L053C6T6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32 Kbytes of Flash , 32 MHz CPU, USB, LCD

Learn More

Datasheet

211In Stock

¥568.1

¥426.9

¥392

¥352.1

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Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB, LCD

STM32L053C8T6TR
STMicroelectronics
1: ¥518.2
846In Stock
4,800On Order

Mfr. Part #
STM32L053C8T6TR

Mouser Part #
511-STM32L053C8T6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB, LCD

Learn More

Datasheet

846In Stock

4,800On Order

Cut Tape

¥518.2

¥388.7

¥355.5

¥320.6

View

Reel

¥294

MouseReel Available

Min.: 1
Mult.: 1

: 2,400

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB, LCD

STM32L053R8H6
STMicroelectronics
1: ¥797.3
46In Stock

Mfr. Part #
STM32L053R8H6

Mouser Part #
511-STM32L053R8H6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB, LCD

Learn More

Datasheet

46In Stock

¥797.3

¥604.6

¥526.5

¥393.7

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB, LCD

STM32L053R8T6
STMicroelectronics
1: ¥659.4
629In Stock

Mfr. Part #
STM32L053R8T6

Mouser Part #
511-STM32L053R8T6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB, LCD

Learn More

Datasheet

629In Stock

¥659.4

¥438.5

¥406.9

¥357.1

View

Min.: 1
Mult.: 1

STM32 L0 Ultra-Low-Power MCUs

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