8-bit Microcontrollers - MCU

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STM8S 8-bit Microcontroller

The STMicroelectronics STM8S 8-bit Microcontroller (MCU) family combines leading-edge performance, robustness, peripherals, and cost-effectiveness. These high-performance STMicroelectronics STM8S MCUs feature an advanced 20 MIP STM8 8-bit core with Harvard Architecture and 3-stage Pipeline, robust architecture (dual watchdogs, clock security, and IEC61967-compliant EMI emission), a rich peripheral set (10-bit ADC, advanced timers, CAN, UARTs, SPI, I2C), and maximum integration (true EEPROM, 16MHz and 128KHz on-chip RC oscillators). The STMicroelectronics STM8S family meets the demanding requirements of industrial and appliance applications while providing a host of other benefits, including excellent performance and code density, scalability in memory, and reduced system cost and external component needs.

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Part #

8-bit Microcontrollers - MCU 8-bit MCU Value Line 16 MHz 8kb FL 128EE

STM8S003F3U6TR
STMicroelectronics
1: S/6.66
23,844On Order

Mfr. Part #
STM8S003F3U6TR

Mouser Part #
511-STM8S003F3U6TR

STMicroelectronics

8-bit Microcontrollers - MCU 8-bit MCU Value Line 16 MHz 8kb FL 128EE

Learn More

Datasheet

23,844On Order

Cut Tape

S/6.66

S/4.05

S/3.40

S/2.58

View

Reel

S/1.56

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

STM8

8 kB

1 kB

QFN-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S003F3

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8-Bit MCU Value Line 8kB Flash 16MHz EE

STM8S005C6T6TR
STMicroelectronics
1: S/11.72
2,400Expected 11/12/2026

Mfr. Part #
STM8S005C6T6TR

Mouser Part #
511-STM8S005C6T6TR

STMicroelectronics

8-bit Microcontrollers - MCU 8-Bit MCU Value Line 8kB Flash 16MHz EE

Learn More

Datasheet

2,400Expected 11/12/2026

Cut Tape

S/11.72

S/8.68

S/7.51

S/7.12

View

Reel

S/5.76

MouseReel Available

Min.: 1
Mult.: 1

: 2,400

STM8

32 kB

2 kB

16 MHz

10 bit

38 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S005C6

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 4 Kbyte

STM8S103F2P6TR
STMicroelectronics
1: S/5.22
5,000Expected 3/8/2027

Mfr. Part #
STM8S103F2P6TR

Mouser Part #
511-STM8S103F2P6TR

STMicroelectronics

8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 4 Kbyte

Learn More

Datasheet

5,000Expected 3/8/2027

Cut Tape

S/5.22

S/3.32

S/2.79

S/2.28

View

Reel

S/1.57

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

STM8

4 kB

1 kB

TSSOP-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S103F2

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Access line MCU 8Kbyt 16 MHz

STM8S103F3P6TR
STMicroelectronics
1: S/5.49
9,755On Order

Mfr. Part #
STM8S103F3P6TR

Mouser Part #
511-STM8S103F3P6TR

STMicroelectronics

8-bit Microcontrollers - MCU Access line MCU 8Kbyt 16 MHz

Learn More

Datasheet

9,755On Order

Cut Tape

S/5.49

S/3.50

S/2.94

S/2.40

View

Reel

S/1.65

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

STM8

8 kB

1 kB

TSSOP-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S103F3

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Access Line 16 MHz 8-bit MCU 32 Kbyt

STM8S103K3T6C
STMicroelectronics
1: S/6.66
7,473On Order

Mfr. Part #
STM8S103K3T6C

Mouser Part #
511-STM8S103K3T6C

STMicroelectronics

8-bit Microcontrollers - MCU Access Line 16 MHz 8-bit MCU 32 Kbyt

Learn More

Datasheet

7,473On Order

S/6.66

S/4.52

S/4.09

S/3.47

S/3.20

Min.: 1
Mult.: 1

STM8

8 kB

1 kB

LQFP-32

16 MHz

10 bit

28 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S103K3

Tray

8-bit Microcontrollers - MCU 8-bit MCU Access 16 MHz 32kb Flash

STM8S105K6U6A
STMicroelectronics
1: S/13.78
2,940Expected 8/2/2027

Mfr. Part #
STM8S105K6U6A

Mouser Part #
511-STM8S105K6U6A

STMicroelectronics

8-bit Microcontrollers - MCU 8-bit MCU Access 16 MHz 32kb Flash

Learn More

Datasheet

2,940Expected 8/2/2027

S/13.78

S/9.69

S/8.72

S/7.86

View

Min.: 1
Mult.: 1

STM8

32 kB

2 kB

UFQFPN-32

16 MHz

10 bit

25 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S105K6

Tray

8-bit Microcontrollers - MCU 8BIT Ultralow MCU 32KB Flash 2KB RAM

STM8S207S6T6CTR
STMicroelectronics
1: S/20.71
843Expected 4/12/2027

Mfr. Part #
STM8S207S6T6CTR

Mouser Part #
511-STM8S207S6T6CTR

STMicroelectronics

8-bit Microcontrollers - MCU 8BIT Ultralow MCU 32KB Flash 2KB RAM

Learn More

Datasheet

843Expected 4/12/2027

Cut Tape

S/20.71

S/13.70

S/12.49

S/10.59

View

Reel

S/8.72

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

STM8

32 kB

6 kB

24 MHz

10 bit

34 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S207S6

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Performance LN 8-Bit 24 MHz STM8S MCU

STM8S208C6T3
STMicroelectronics
1: S/24.83
1,500Expected 12/14/2026

Mfr. Part #
STM8S208C6T3

Mouser Part #
511-STM8S208C6T3

STMicroelectronics

8-bit Microcontrollers - MCU Performance LN 8-Bit 24 MHz STM8S MCU

Learn More

Datasheet

1,500Expected 12/14/2026

S/24.83

S/17.09

S/15.92

S/14.01

View

Min.: 1
Mult.: 1

STM8

32 kB

6 kB

LQFP-48

24 MHz

10 bit

38 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S208C6

Tray

8-bit Microcontrollers - MCU Access line MCU 32Kbyt 16 MHz

STM8S208R8T6
STMicroelectronics
1: S/25.07
956Expected 4/12/2027

Mfr. Part #
STM8S208R8T6

Mouser Part #
511-STM8S208R8T6

STMicroelectronics

8-bit Microcontrollers - MCU Access line MCU 32Kbyt 16 MHz

Learn More

Datasheet

956Expected 4/12/2027

S/25.07

S/17.24

S/16.08

S/14.13

View

Min.: 1
Mult.: 1

STM8

64 kB

6 kB

LQFP-64

24 MHz

10 bit

52 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S208R8

Tray

8-bit Microcontrollers - MCU Performance LN 8-Bit 24 MHz STM8S MCU

STM8S208S6T3C
STMicroelectronics
1: S/21.99
958Expected 3/29/2027

Mfr. Part #
STM8S208S6T3C

Mouser Part #
511-STM8S208S6T3C

STMicroelectronics

8-bit Microcontrollers - MCU Performance LN 8-Bit 24 MHz STM8S MCU

Learn More

Datasheet

958Expected 3/29/2027

S/21.99

S/16.74

S/14.64

S/13.58

S/12.73

Min.: 1
Mult.: 1

STM8

32 kB

6 kB

LQFP-44

24 MHz

10 bit

34 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S208S6

Tray

8-bit Microcontrollers - MCU App specific line 8-bit MCU 8Kb

STM8S903F3P6TR
STMicroelectronics
1: S/8.68
1,961Expected 6/7/2027

Mfr. Part #
STM8S903F3P6TR

Mouser Part #
511-STM8S903F3P6TR

STMicroelectronics

8-bit Microcontrollers - MCU App specific line 8-bit MCU 8Kb

Learn More

Datasheet

1,961Expected 6/7/2027

Cut Tape

S/8.68

S/6.38

S/5.49

S/5.18

View

Reel

S/3.59

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

STM8

8 kB

1 kB

TSSOP-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S903F3

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Mainstream Access line 8-bit MCU 32 Kbytes Flash, 16 MHz CPU, integrated EEPROM

STM8S105C6T3
STMicroelectronics
1: S/15.73
3In Stock

Mfr. Part #
STM8S105C6T3

Mouser Part #
511-STM8S105C6T3

STMicroelectronics

8-bit Microcontrollers - MCU Mainstream Access line 8-bit MCU 32 Kbytes Flash, 16 MHz CPU, integrated EEPROM

Learn More

Datasheet

3In Stock

S/15.73

S/11.83

S/10.28

S/9.77

View

Min.: 1
Mult.: 1

STM8

32 kB

2 kB

16 MHz

10 bit

38 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S105C6

Tray

8-bit Microcontrollers - MCU Mainstream Performance line 8-bit MCU 64 Kbytes Flash, 24 MHz CPU, integrated EE

STM8S208C8T6TR
STMicroelectronics
1: S/20.20
10In Stock

Mfr. Part #
STM8S208C8T6TR

Mouser Part #
511-STM8S208C8T6TR

STMicroelectronics

8-bit Microcontrollers - MCU Mainstream Performance line 8-bit MCU 64 Kbytes Flash, 24 MHz CPU, integrated EE

Learn More

Datasheet

10In Stock

Cut Tape

S/20.20

S/15.34

S/13.39

S/12.77

Reel

S/9.65

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,400

LQFP-64

SMD/SMT

STM8S208C8

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8-bit Performance LN 16 Mhz 8kb Flash

STM8S903F3M6TR
STMicroelectronics
1: S/11.17
101In Stock

Mfr. Part #
STM8S903F3M6TR

Mouser Part #
511-STM8S903F3M6TR

STMicroelectronics

8-bit Microcontrollers - MCU 8-bit Performance LN 16 Mhz 8kb Flash

Learn More

Datasheet

101In Stock

Cut Tape

S/11.17

S/8.17

S/7.08

S/6.46

Reel

S/4.63

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

STM8

8 kB

1 kB

SOP-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S903F3

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU DiSEqC slave MCU 8-Bit 16MHz LNB

STM8SPLNB1P6
STMicroelectronics
1: S/23.04
90In Stock

Mfr. Part #
STM8SPLNB1P6

Mouser Part #
511-STM8SPLNB1P6

STMicroelectronics

8-bit Microcontrollers - MCU DiSEqC slave MCU 8-Bit 16MHz LNB

Learn More

Datasheet

90In Stock

S/23.04

S/15.22

S/13.39

S/11.68

View

Min.: 1
Mult.: 1

STM8

16 MHz

No ADC

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8SPLNB1

Tube

8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 8 Kbyte

STM8S103F3U6TR
STMicroelectronics
1: S/7.01
2,995Expected 12/7/2026

Mfr. Part #
STM8S103F3U6TR

Mouser Part #
511-STM8S103F3U6TR

STMicroelectronics

8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 8 Kbyte

Learn More

Datasheet

2,995Expected 12/7/2026

Cut Tape

S/7.01

S/4.28

S/3.58

S/2.76

Reel

S/2.76

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

STM8

8 kB

1 kB

QFN-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S103F3

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 4 Kbyte

STM8S103F2P3
STMicroelectronics
1: S/11.52
Non-Stocked Lead-Time 40 Weeks

Mfr. Part #
STM8S103F2P3

Mouser Part #
511-STM8S103F2P3

STMicroelectronics

8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 4 Kbyte

Learn More

Datasheet

Non-Stocked Lead-Time 40 Weeks

S/11.52

S/7.51

S/6.89

S/5.92

View

Min.: 1
Mult.: 1

STM8

4 kB

1 kB

TSSOP-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S103F2

Tube

8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 8 Kbyte

STM8S103F2U6TR
STMicroelectronics
1: S/6.66
Lead-Time 40 Weeks

Mfr. Part #
STM8S103F2U6TR

Mouser Part #
511-STM8S103F2U6TR

STMicroelectronics

8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 8 Kbyte

Learn More

Datasheet

Lead-Time 40 Weeks

Cut Tape

S/6.66

S/4.05

S/3.40

S/2.58

View

Reel

S/1.56

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

STM8

4 kB

1 kB

QFN-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S103F2

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Access line 8-bit MCU 8Kb

STM8S103F3M6TR
STMicroelectronics
1: S/12.53
Non-Stocked Lead-Time 40 Weeks

Mfr. Part #
STM8S103F3M6TR

Mouser Part #
511-STM8S103F3M6TR

STMicroelectronics

8-bit Microcontrollers - MCU Access line 8-bit MCU 8Kb

Learn More

Datasheet

Non-Stocked Lead-Time 40 Weeks

Cut Tape

S/12.53

S/8.17

S/7.51

S/6.46

View

Reel

S/4.94

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

STM8

8 kB

1 kB

SOP-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

STM8S103F3

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Mainstream Access line 8-bit MCU 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM

STM8S103F3U3TR
STMicroelectronics
1: S/11.56
Lead-Time 40 Weeks

Mfr. Part #
STM8S103F3U3TR

Mouser Part #
511-STM8S103F3U3TR

STMicroelectronics

8-bit Microcontrollers - MCU Mainstream Access line 8-bit MCU 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM

Learn More

Datasheet

Lead-Time 40 Weeks

Cut Tape

S/11.56

S/7.55

S/6.93

S/5.96

View

Reel

S/4.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

STM8

8 kB

1 kB

QFN-20

16 MHz

10 bit

16 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S103F3

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Access Line 16 MHz 8-BIT MCU

STM8S103K3T3C
STMicroelectronics
1: S/14.05
Non-Stocked Lead-Time 40 Weeks

Mfr. Part #
STM8S103K3T3C

Mouser Part #
511-STM8S103K3T3C

STMicroelectronics

8-bit Microcontrollers - MCU Access Line 16 MHz 8-BIT MCU

Learn More

Datasheet

Non-Stocked Lead-Time 40 Weeks

S/14.05

S/9.50

S/8.80

S/7.67

View

Min.: 1
Mult.: 1

STM8

8 kB

1 kB

LQFP-32

16 MHz

10 bit

28 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S103K3

Tray

8-bit Microcontrollers - MCU Access line 8-bit MCU 8Kb

STM8S103K3T3CTR
STMicroelectronics
1: S/11.48
Non-Stocked Lead-Time 40 Weeks

Mfr. Part #
STM8S103K3T3CTR

Mouser Part #
511-STM8S103K3T3CTR

STMicroelectronics

8-bit Microcontrollers - MCU Access line 8-bit MCU 8Kb

Learn More

Datasheet

Non-Stocked Lead-Time 40 Weeks

Cut Tape

S/11.48

S/8.56

S/7.36

S/7.01

View

Reel

S/5.64

MouseReel Available

Min.: 1
Mult.: 1

: 2,400

STM8

8 kB

1 kB

16 MHz

10 bit

28 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S103K3

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Mainstream Access line 8-bit MCU 16 Kbytes Flash, 16 MHz CPU, integrated EEPROM

STM8S105C4T3TR
STMicroelectronics
1: S/17.20
Non-Stocked Lead-Time 40 Weeks

Mfr. Part #
STM8S105C4T3TR

Mouser Part #
511-STM8S105C4T3TR

STMicroelectronics

8-bit Microcontrollers - MCU Mainstream Access line 8-bit MCU 16 Kbytes Flash, 16 MHz CPU, integrated EEPROM

Learn More

Datasheet

Non-Stocked Lead-Time 40 Weeks

Cut Tape

S/17.20

S/11.37

S/10.35

S/8.80

View

Reel

S/7.08

MouseReel Available

Min.: 1
Mult.: 1

: 2,400

STM8

16 kB

2 kB

LQFP-48

16 MHz

10 bit

38 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S105C4

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Mainstream Access line 8-bit MCU 32 Kbytes Flash, 16 MHz CPU, integrated EEPROM

STM8S105C6T3TR
STMicroelectronics
2,400: S/7.94
Non-Stocked Lead-Time 40 Weeks

Mfr. Part #
STM8S105C6T3TR

Mouser Part #
511-STM8S105C6T3TR

STMicroelectronics

8-bit Microcontrollers - MCU Mainstream Access line 8-bit MCU 32 Kbytes Flash, 16 MHz CPU, integrated EEPROM

Learn More

Datasheet

Non-Stocked Lead-Time 40 Weeks

Reel

S/7.94

Min.: 2,400
Mult.: 2,400

: 2,400

STM8S105C6

Reel

8-bit Microcontrollers - MCU 8BIT Ultralow MCU 16KB Flash 2KB RAM

STM8S105K4T3CTR
STMicroelectronics
2,400: S/6.54
Non-Stocked Lead-Time 40 Weeks

Mfr. Part #
STM8S105K4T3CTR

Mouser Part #
511-STM8S105K4T3CTR

STMicroelectronics

8-bit Microcontrollers - MCU 8BIT Ultralow MCU 16KB Flash 2KB RAM

Learn More

Datasheet

Non-Stocked Lead-Time 40 Weeks

Reel

S/6.54

Min.: 2,400
Mult.: 2,400

: 2,400

STM8

16 kB

2 kB

16 MHz

10 bit

25 I/O

2.95 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

STM8S105K4

Reel

STM8S 8-bit Microcontroller

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STM8S
STM8S001J3
STM8S003F3
STM8S003K3
STM8S005C6
STM8S005K6
STM8S007C8
STM8S103F2
STM8S103F3
STM8S103K3
STM8S105C4
STM8S105C6
STM8S105K4
STM8S105K6
STM8S105S6
STM8S207C6
STM8S207C8
STM8S207CB
STM8S207K6
STM8S207K8