.hide-partial { max-height: none; } .show-more { display: none; }

STMicroelectronics Embedded Processors & Controllers

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Embedded Processors & Controllers

List Images

Results: 5,724

Applied Filters:

Brand = STMicroelectronics

Product Type

Mounting Style

Package / Case

Core

Data Bus Width

Maximum Clock Frequency

Program Memory Size

L1 Cache Instruction Memory

L1 Cache Data Memory

Data RAM Size

ADC Resolution

Number of I/Os

Minimum Operating Temperature

Maximum Operating Temperature

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

STM32L451RCT6
STMicroelectronics
1: $4.63
5,165In Stock

Mfr. Part #
STM32L451RCT6

Mouser Part #
511-STM32L451RCT6

STMicroelectronics

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

Learn More

Datasheet

5,165In Stock

$4.63

$3.87

$3.69

$3.47

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

80 MHz

256 kB

160 kB

12 bit

52 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 1024 kbytes of Flash USB OTG, DFSD

STM32L4P5CGT6
STMicroelectronics
1: $10.92
2,572In Stock

Mfr. Part #
STM32L4P5CGT6

Mouser Part #
511-STM32L4P5CGT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 1024 kbytes of Flash USB OTG, DFSD

Learn More

Datasheet

2,572In Stock

$10.92

$8.53

$7.94

$7.28

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD

STM32L4S7VIT6
STMicroelectronics
1: $11.26
2,190In Stock

Mfr. Part #
STM32L4S7VIT6

Mouser Part #
511-STM32L4S7VIT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD

Learn More

Datasheet

2,190In Stock

$11.26

$9.21

$8.82

$8.63

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

120 MHz

2 MB

640 kB

2 x 12 bit

83 I/O

- 40 C

+ 85 C

Tray

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

STM8S208C8T6
STMicroelectronics
1: $4.43
12,455In Stock

Mfr. Part #
STM8S208C8T6

Mouser Part #
511-STM8S208C8T6

STMicroelectronics

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

Learn More

Datasheet

12,455In Stock

$4.43

$3.36

$3.09

$2.89

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

LQFP-48

STM8

8 bit

24 MHz

64 kB

6 kB

10 bit

38 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb UltralowPower

STM32L151CBT6
STMicroelectronics
1: $7.52
10,307In Stock
NRND

Mfr. Part #
STM32L151CBT6

Mouser Part #
511-STM32L151CBT6

NRND

STMicroelectronics

ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb UltralowPower

Learn More

Datasheet

10,307In Stock

$7.52

$5.80

$5.37

$4.90

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

ARM Cortex M3

32 bit

32 MHz

128 kB

16 kB

12 bit

37 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 USB line MCU 32 Kbytes of Flash 48 MHz CPU, USB, CAN &

STM32F042G6U6
STMicroelectronics
1: $2.31
33,502In Stock

Mfr. Part #
STM32F042G6U6

Mouser Part #
511-STM32F042G6U6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 USB line MCU 32 Kbytes of Flash 48 MHz CPU, USB, CAN &

Learn More

Datasheet

33,502In Stock

$2.31

$1.90

$1.80

$1.69

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-28

ARM Cortex M0

32 bit

48 MHz

32 kB

6 kB

12 bit

24 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7

STM32F302C6T6
STMicroelectronics
1: $5.61
6,669In Stock

Mfr. Part #
STM32F302C6T6

Mouser Part #
511-STM32F302C6T6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7

Learn More

Datasheet

6,669In Stock

$5.61

$4.28

$3.89

$3.59

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

72 MHz

32 kB

16 kB

12 bit

37 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 64kB MCU FPU

STM32F373R8T6
STMicroelectronics
1: $7.26
4,730In Stock

Mfr. Part #
STM32F373R8T6

Mouser Part #
511-STM32F373R8T6

STMicroelectronics

ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 64kB MCU FPU

Learn More

Datasheet

4,730In Stock

$7.26

$5.60

$5.03

$4.54

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

72 MHz

64 kB

16 kB

12 bit, 3 x 16 bit

80 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 1 MByte of Flash 100

STM32F413ZGJ6
STMicroelectronics
1: $13.10
3,027In Stock

Mfr. Part #
STM32F413ZGJ6

Mouser Part #
511-STM32F413ZGJ6

STMicroelectronics

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 1 MByte of Flash 100

Learn More

Datasheet

3,027In Stock

$13.10

$9.95

$9.54

$8.41

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFBGA-144

ARM Cortex M4

32 bit

100 MHz

1 MB

320 kB

12 bit

114 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 168MHz

STM32F437IIH6
STMicroelectronics
1: $16.15
6,088In Stock

Mfr. Part #
STM32F437IIH6

Mouser Part #
511-STM32F437IIH6

STMicroelectronics

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 168MHz

Learn More

Datasheet

6,088In Stock

$16.15

$13.50

$12.85

$11.91

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

BGA-176

ARM Cortex M4

32 bit

180 MHz

2 MB

256 kB

3 x 12 bit

140 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance & DSP FPU, Arm Cortex-M7 MCU 1 Mbyte of Flash 216 MHz CPU, Art

STM32F746NGH6
STMicroelectronics
1: $17.59
8,735In Stock

Mfr. Part #
STM32F746NGH6

Mouser Part #
511-STM32F746NGH6

STMicroelectronics

ARM Microcontrollers - MCU High-performance & DSP FPU, Arm Cortex-M7 MCU 1 Mbyte of Flash 216 MHz CPU, Art

Learn More

Datasheet

8,735In Stock

$17.59

$15.15

$13.90

$13.20

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

TFBGA-216

ARM Cortex M7

32 bit

216 MHz

1 MB

320 kB

3 x 12 bit

168 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance & DSP FPU, Arm Cortex-M7 MCU 1 Mbyte of Flash 216 MHz CPU, Art

STM32F767IGT6
STMicroelectronics
1: $15.80
2,426In Stock

Mfr. Part #
STM32F767IGT6

Mouser Part #
511-STM32F767IGT6

STMicroelectronics

ARM Microcontrollers - MCU High-performance & DSP FPU, Arm Cortex-M7 MCU 1 Mbyte of Flash 216 MHz CPU, Art

Learn More

Datasheet

2,426In Stock

$15.80

$13.75

$13.27

$12.72

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-176

ARM Cortex M7

32 bit

216 MHz

1 MB

532 kB

3 x 12 bit

140 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 32 Kbytes of Flash Math Accel, Medium Analo

STM32G431C6T6
STMicroelectronics
1: $4.46
11,803In Stock

Mfr. Part #
STM32G431C6T6

Mouser Part #
511-STM32G431C6T6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 32 Kbytes of Flash Math Accel, Medium Analo

Learn More

Datasheet

11,803In Stock

$4.46

$3.48

$3.20

$2.95

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

170 MHz

32 kB

2 x 12 bit

38 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance & DSP DP-FPU, Arm Cortex-M7 MCU 1 MByte Flash, 564 KBytes RAM,

STM32H735ZGT6
STMicroelectronics
1: $13.46
2,929In Stock

Mfr. Part #
STM32H735ZGT6

Mouser Part #
511-STM32H735ZGT6

STMicroelectronics

ARM Microcontrollers - MCU High-performance & DSP DP-FPU, Arm Cortex-M7 MCU 1 MByte Flash, 564 KBytes RAM,

Learn More

Datasheet

2,929In Stock

$13.46

$10.54

$9.30

$8.78

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-144

Tray

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 192 Kbytes of Flash , 32 MHz CPu

STM32L071CZT6TR
STMicroelectronics
1: $4.59
18,387In Stock

Mfr. Part #
STM32L071CZT6TR

Mouser Part #
511-STM32L071CZT6TR

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 192 Kbytes of Flash , 32 MHz CPu

Learn More

Datasheet

18,387In Stock

Cut Tape

$4.59

$3.51

$3.21

$2.95

Reel

$2.34

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,400

ARM Microcontrollers - MCU

SMD/SMT

ARM Cortex M0+

32 bit

32 MHz

192 kB

20 kB

12 bit

40 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 1 Mbyte of Flash LCD, USB OTG, DFSD

STM32L476QGI6
STMicroelectronics
1: $8.75
3,078In Stock

Mfr. Part #
STM32L476QGI6

Mouser Part #
511-STM32L476QGI6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 1 Mbyte of Flash LCD, USB OTG, DFSD

Learn More

Datasheet

3,078In Stock

$8.75

$7.49

$7.19

$6.76

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFBGA-132

ARM Cortex M4

32 bit

80 MHz

1 MB

128 kB

3 x 12 bit

109 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD

STM32L4R9VIT6
STMicroelectronics
1: $14.83
3,684In Stock

Mfr. Part #
STM32L4R9VIT6

Mouser Part #
511-STM32L4R9VIT6

STMicroelectronics

ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD

Learn More

Datasheet

3,684In Stock

$14.83

$10.96

$10.11

$10.10

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

120 MHz

2 MB

640 kB

12 bit

77 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU Ultra-low-power 8-bit MCU 64 Kbytes Flash, 16 MHz CPU, integrated EEPROM

STM8L052R8T6TR
STMicroelectronics
1: $1.95
17,492In Stock

Mfr. Part #
STM8L052R8T6TR

Mouser Part #
511-STM8L052R8T6TR

STMicroelectronics

8-bit Microcontrollers - MCU Ultra-low-power 8-bit MCU 64 Kbytes Flash, 16 MHz CPU, integrated EEPROM

Learn More

Datasheet

17,492In Stock

Cut Tape

$1.95

$1.44

$1.31

$1.17

Reel

$1.01

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

8-bit Microcontrollers - MCU

SMD/SMT

LQFP-64

STM8

8 bit

16 MHz

64 kB

4 kB

12 bit

54 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 24MHz, 8-Bit MCU 20MIPS@24MHz

STM8S207C8T6
STMicroelectronics
1: $3.72
8,013In Stock

Mfr. Part #
STM8S207C8T6

Mouser Part #
511-STM8S207C8T6

STMicroelectronics

8-bit Microcontrollers - MCU 24MHz, 8-Bit MCU 20MIPS@24MHz

Learn More

Datasheet

8,013In Stock

$3.72

$2.76

$2.41

$2.29

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

LQFP-48

STM8

8 bit

24 MHz

64 kB

6 kB

10 bit

38 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ MCU 128 Kbytes 36 Kbytes RAM 64 MHz CPU 4x USART timer

STM32G071GBU7
STMicroelectronics
1: $4.30
374In Stock
2,940On Order

Mfr. Part #
STM32G071GBU7

Mouser Part #
511-STM32G071GBU7

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ MCU 128 Kbytes 36 Kbytes RAM 64 MHz CPU 4x USART timer

Datasheet

374In Stock

2,940On Order

$4.30

$2.84

$2.59

$2.20

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

Tray

RF Microcontrollers - MCU Bluetooth Low Energy Network Processor supporting Bluetooth 4.2 core specificati

BLUENRG-MSQTR
STMicroelectronics
1: $3.92
29,336In Stock
NRND

Mfr. Part #
BLUENRG-MSQTR

Mouser Part #
511-BLUENRG-MSQTR

NRND

STMicroelectronics

RF Microcontrollers - MCU Bluetooth Low Energy Network Processor supporting Bluetooth 4.2 core specificati

Learn More

Datasheet

29,336In Stock

Cut Tape

$3.92

$3.01

$2.76

$2.49

View

Reel

$2.12

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

RF Microcontrollers - MCU

SMD/SMT

QFN-32

ARM Cortex M0

32 bit

32 MHz

64 kB

12 kB

No ADC

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line

STM32F103RCY6TR
STMicroelectronics
1: $9.82
3,974In Stock

Mfr. Part #
STM32F103RCY6TR

Mouser Part #
511-STM32F103RCY6TR

STMicroelectronics

ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line

Learn More

Datasheet

3,974In Stock

Cut Tape

$9.82

$7.61

$7.06

$6.67

View

Reel

$4.85

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ARM Microcontrollers - MCU

SMD/SMT

WLCSP-64

ARM Cortex M3

32 bit

72 MHz

256 kB

48 kB

12 bit

51 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ 64 Kbytes of memory 8 Kbytes RAM 64 MHz 2x USART

STM32G031G8U3
STMicroelectronics
1: $3.53
3,470In Stock

Mfr. Part #
STM32G031G8U3

Mouser Part #
511-STM32G031G8U3

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ 64 Kbytes of memory 8 Kbytes RAM 64 MHz 2x USART

Learn More

Datasheet

3,470In Stock

$3.53

$2.32

$2.15

$1.87

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-28

ARM Cortex M0+

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 128 Kbytes of Flash Math Accel, HR Timer, H

STM32G474VBT6
STMicroelectronics
1: $9.45
889In Stock
3,240On Order

Mfr. Part #
STM32G474VBT6

Mouser Part #
511-STM32G474VBT6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 128 Kbytes of Flash Math Accel, HR Timer, H

Learn More

Datasheet

889In Stock

3,240On Order

$9.45

$7.09

$6.76

$5.87

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

170 MHz

128 kB

5 x 12 bit

86 I/O

- 40 C

+ 85 C

Tray

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

STM32L083V8T6
STMicroelectronics
1: $6.86
683In Stock

Mfr. Part #
STM32L083V8T6

Mouser Part #
511-STM32L083V8T6

STMicroelectronics

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

Learn More

Datasheet

683In Stock

$6.86

$5.04

$4.70

$4.13

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M0+

32 bit

32 MHz

64 kB

20 kB

12 bit

84 I/O

- 40 C

+ 85 C

Tray

STMicroelectronics Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

BGA-100
BGA-132
BGA-144
BGA-168
BGA-169
BGA-176
BGA-216
BGA-292
BGA-64
BGA-73
CSP-100
CSP-115
CSP-36
CSP-48
CSP-64
CSP-72
CSP-81
FPBGA-292
FPBGA-302
FPBGA-386

ARM1176JZ-F
ARM Cortex-A35
ARM Cortex A35, ARM Cortex M33
ARM Cortex A7
ARM Cortex A7, ARM Cortex M4
ARM Cortex M0
ARM Cortex-M0, ARM Cortex-M4
ARM Cortex M0+
ARM Cortex M0+, ARM Cortex M4
ARM Cortex M3
ARM Cortex M33
ARM Cortex M33, ARM Cortex A35
ARM Cortex M35P
ARM Cortex M4
ARM Cortex M4, ARM Cortex M7
ARM Cortex M4F
ARM Cortex M55
ARM Cortex M7
ARM Cortex-R52+
e200z0

8 MHz
15 MHz
16 MHz
16 MHz/32 MHz
20 MHz
24 MHz
32 MHz
32 MHz, 64 MHz
36 MHz
48 MHz
56 MHz
64 MHz
72 MHz
80 MHz
80 MHz, 120 MHz
80 MHz, 160 MHz
84 MHz
96 MHz
100 MHz
110 MHz

0 B
1 KB
2 kB
4 kB
8 kB
16 kB
32 kB
64 kB
96 kB
128 KB
128 kB
160 kB
176 kB
192 kB
256 kB
320 kB
384 kB
512 kB
640 kB
768 kB

384 B
512 B
1 kB
1.5 kB
2 kB
4 kB
6 kB
8 kB
10 kB
12 kB
16 KB
16 kB
18 kB
20 kB
22 kB
24 kB
32 KB
32 kB
36 kB
40 kB

2 x 10 bit
2 x 10 bit, 5 x 12 bit, 6 x 16 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 10 bit, 5 x 12 bit, 6 x 16 bit
3 x 12 bit
3 x 12 bit, 1 x 16 bit
3 x 16 bit
4 x 12 bit
4 x 6 bit/8 bit/10 bit/12 bit
5 x 12 bit
5 x 12 bit, 2 x 16 bit
6 bit/8 bit/10 bit/12 bit
8 bit to 16 bit
10 bit
10 bit, 12 bit
10 bit, 3 x 12 bit
10 bit, 4 x 12 bit

5 I/O
6 I/O
8 I/O
9 I/O
10 I/O
11 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