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ARM Cortex M4 Core Embedded Processors & Controllers

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Core = ARM Cortex M4

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Part #

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash

STM32F303CBT7
STMicroelectronics
1: $8.91
28In Stock
1,500Expected 04/01/2027

Mfr. Part No.
STM32F303CBT7

Mouser Part No
511-STM32F303CBT7

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash

Learn More

Datasheet

28In Stock

1,500Expected 04/01/2027

$8.91

$6.82

$6.23

$5.65

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

72 MHz

128 kB

40 kB

4 x 6 bit/8 bit/10 bit/12 bit

37 I/O

- 40 C

+ 105 C

Tray

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash

STM32F303CBT7TR
STMicroelectronics
1: $8.96
223In Stock

Mfr. Part No.
STM32F303CBT7TR

Mouser Part No
511-STM32F303CBT7TR

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash

Learn More

Datasheet

223In Stock

Cut Tape

$8.96

$6.72

$6.41

$5.56

View

Reel

$4.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,400

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

72 MHz

128 kB

40 kB

4 x 6 bit/8 bit/10 bit/12 bit

37 I/O

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU

STM32F303CCT6
STMicroelectronics
1: $9.13
345In Stock
3,000On Order

Mfr. Part No.
STM32F303CCT6

Mouser Part No
511-STM32F303CCT6

STMicroelectronics

ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU

Learn More

Datasheet

345In Stock

3,000On Order

$9.13

$7.06

$6.28

$5.86

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

72 MHz

256 kB

40 kB

4 x 6 bit/8 bit/10 bit/12 bit

37 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

STM32F303RCT6TR
STMicroelectronics
1: $9.52
28In Stock
25,000On Order

Mfr. Part No.
STM32F303RCT6TR

Mouser Part No
511-STM32F303RCT6TR

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

Learn More

Datasheet

28In Stock

25,000On Order

Cut Tape

$9.52

$7.39

$7.02

$6.36

View

Reel

$5.67

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

72 MHz

256 kB

32 kB

4 x 6 bit/8 bit/10 bit/12 bit

52 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash

STM32F303RET6TR
STMicroelectronics
1: $12.54
22In Stock
2,000On Order

Mfr. Part No.
STM32F303RET6TR

Mouser Part No
511-STM32F303RET6TR

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash

Learn More

Datasheet

22In Stock

2,000On Order

Cut Tape

$12.54

$9.88

$9.42

$8.18

View

Reel

$7.17

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

72 MHz

512 kB

64 kB

4 x 6 bit/8 bit/10 bit/12 bit

51 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

STM32F303VCT6TR
STMicroelectronics
1: $11.56
21In Stock
1,000Expected 28/12/2026

Mfr. Part No.
STM32F303VCT6TR

Mouser Part No
511-STM32F303VCT6TR

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

Learn More

Datasheet

21In Stock

1,000Expected 28/12/2026

Cut Tape

$11.56

$8.99

$8.58

$7.45

View

Reel

$6.54

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

72 MHz

256 kB

40 kB

4 x 6 bit/8 bit/10 bit/12 bit

87 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash

STM32F303VET6TR
STMicroelectronics
1: $13.14
155In Stock
1,000Expected 22/12/2026

Mfr. Part No.
STM32F303VET6TR

Mouser Part No
511-STM32F303VET6TR

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash

Learn More

Datasheet

155In Stock

1,000Expected 22/12/2026

Cut Tape

$13.14

$10.30

$9.16

$8.81

View

Reel

$7.66

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

72 MHz

512 kB

64 kB

4 x 6 bit/8 bit/10 bit/12 bit

82 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash

STM32F303ZET7
STMicroelectronics
1: $17.52
13In Stock
360Expected 03/11/2026

Mfr. Part No.
STM32F303ZET7

Mouser Part No
511-STM32F303ZET7

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash

Learn More

Datasheet

13In Stock

360Expected 03/11/2026

$17.52

$13.84

$12.29

$11.35

$11.00

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-144

ARM Cortex M4

32 bit

72 MHz

512 kB

64 kB

4 x 6 bit/8 bit/10 bit/12 bit

115 I/O

- 40 C

+ 105 C

Tray

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 32 Kbytes of Flash 7

STM32F334R6T6
STMicroelectronics
1: $9.12
98In Stock
960Expected 21/01/2027

Mfr. Part No.
STM32F334R6T6

Mouser Part No
511-STM32F334R6T6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 32 Kbytes of Flash 7

Learn More

Datasheet

98In Stock

960Expected 21/01/2027

$9.12

$6.25

$5.50

$4.74

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

72 MHz

32 kB

12 kB

2 x 6 bit/8 bit/10 bit/12 bit

51 I/O

- 40 C

+ 85 C

ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU

STM32F373CCT6
STMicroelectronics
1: $9.88
179In Stock
1,400Expected 28/09/2026

Mfr. Part No.
STM32F373CCT6

Mouser Part No
511-STM32F373CCT6

STMicroelectronics

ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU

Learn More

Datasheet

179In Stock

1,400Expected 28/09/2026

$9.88

$7.63

$7.28

$6.32

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

72 MHz

256 kB

32 kB

12 bit, 3 x 16 bit

56 I/O

- 40 C

+ 85 C

Tray

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

STM32F373V8T6
STMicroelectronics
1: $8.94
184In Stock

Mfr. Part No.
STM32F373V8T6

Mouser Part No
511-STM32F373V8T6

STMicroelectronics

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

Learn More

Datasheet

184In Stock

$8.94

$6.82

$6.25

$6.01

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

72 MHz

64 kB

16 kB

12 bit, 3 x 16 bit

129 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash

STM32F401CBU3
STMicroelectronics
1: $6.72
47In Stock
6,240On Order

Mfr. Part No.
STM32F401CBU3

Mouser Part No
511-STM32F401CBU3

STMicroelectronics

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash

Learn More

Datasheet

47In Stock

6,240On Order

$6.72

$5.02

$4.56

$4.15

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-48

ARM Cortex M4

32 bit

84 MHz

128 kB

64 kB

12 bit

36 I/O

- 40 C

+ 125 C

Tray

ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU

STM32F401CBU6
STMicroelectronics
1: $6.34
10In Stock
1,560Expected 18/02/2027

Mfr. Part No.
STM32F401CBU6

Mouser Part No
511-STM32F401CBU6

STMicroelectronics

ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU

Learn More

Datasheet

10In Stock

1,560Expected 18/02/2027

$6.34

$4.48

$3.95

$3.67

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-48

ARM Cortex M4

32 bit

84 MHz

128 kB

64 kB

12 bit

36 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance Arm Cortex-M4 core with DSP and FPU, 128 Kbytes of Flash mem

STM32F401CBU6TR
STMicroelectronics
1: $6.52
17In Stock
5,000Expected 10/12/2026

Mfr. Part No.
STM32F401CBU6TR

Mouser Part No
511-STM32F401CBU6TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance Arm Cortex-M4 core with DSP and FPU, 128 Kbytes of Flash mem

Learn More

Datasheet

17In Stock

5,000Expected 10/12/2026

Cut Tape

$6.52

$4.48

$4.18

$3.67

View

Reel

$2.93

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-48

ARM Cortex M4

32 bit

84 MHz

128 kB

64 kB

12 bit

36 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

STM32F401CCU6TR
STMicroelectronics
1: $6.21
47In Stock
10,000On Order

Mfr. Part No.
STM32F401CCU6TR

Mouser Part No
511-STM32F401CCU6TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

Learn More

Datasheet

47In Stock

10,000On Order

Cut Tape

$6.21

$4.77

$4.38

$4.02

View

Reel

$3.34

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-48

ARM Cortex M4

32 bit

84 MHz

256 kB

64 kB

12 bit

36 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash

STM32F401CEU6
STMicroelectronics
1: $7.53
8In Stock
3,120Expected 28/10/2026

Mfr. Part No.
STM32F401CEU6

Mouser Part No
511-STM32F401CEU6

STMicroelectronics

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash

Learn More

Datasheet

8In Stock

3,120Expected 28/10/2026

$7.53

$5.49

$5.02

$4.54

$4.38

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-48

ARM Cortex M4

32 bit

84 MHz

512 kB

96 kB

12 bit

36 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU

STM32F401RCT6
STMicroelectronics
1: $7.24
45In Stock
1,920On Order

Mfr. Part No.
STM32F401RCT6

Mouser Part No
511-STM32F401RCT6

STMicroelectronics

ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU

Learn More

Datasheet

45In Stock

1,920On Order

$7.24

$5.42

$4.92

$4.43

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

84 MHz

256 kB

64 kB

12 bit

50 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

STM32F401RCT7TR
STMicroelectronics
1: $6.69
374In Stock

Mfr. Part No.
STM32F401RCT7TR

Mouser Part No
511-STM32F401RCT7TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

Learn More

Datasheet

374In Stock

Cut Tape

$6.69

$5.13

$4.50

$4.31

Reel

$3.73

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

84 MHz

256 kB

64 kB

12 bit

50 I/O

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 384 Kbytes of Flash

STM32F401RDT6
STMicroelectronics
1: $7.92
168In Stock
960Expected 28/09/2026

Mfr. Part No.
STM32F401RDT6

Mouser Part No
511-STM32F401RDT6

STMicroelectronics

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 384 Kbytes of Flash

Learn More

Datasheet

168In Stock

960Expected 28/09/2026

$7.92

$5.54

$5.28

$4.58

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

84 MHz

384 kB

96 kB

12 bit

50 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU STM32 Dynamic Efficiency MCU, Arm Cortex-M4 core DSP & FPU, up to 512 Kbytes of

STM32F401RET6TR
STMicroelectronics
1: $7.67
37In Stock
5,000On Order

Mfr. Part No.
STM32F401RET6TR

Mouser Part No
511-STM32F401RET6TR

STMicroelectronics

ARM Microcontrollers - MCU STM32 Dynamic Efficiency MCU, Arm Cortex-M4 core DSP & FPU, up to 512 Kbytes of

Learn More

Datasheet

37In Stock

5,000On Order

Cut Tape

$7.67

$5.89

$5.18

$4.66

View

Reel

$4.22

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

84 MHz

512 kB

96 kB

12 bit

50 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU

STM32F401VBT6
STMicroelectronics
1: $7.20
92In Stock

Mfr. Part No.
STM32F401VBT6

Mouser Part No
511-STM32F401VBT6

STMicroelectronics

ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU

Learn More

Datasheet

92In Stock

$7.20

$5.22

$4.82

$4.46

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

84 MHz

128 kB

64 kB

12 bit

81 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

STM32F401VCT7
STMicroelectronics
1: $8.51
21In Stock

Mfr. Part No.
STM32F401VCT7

Mouser Part No
511-STM32F401VCT7

STMicroelectronics

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash

Learn More

Datasheet

21In Stock

$8.51

$6.28

$5.71

$5.09

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

84 MHz

256 kB

64 kB

12 bit

81 I/O

- 40 C

+ 105 C

Tray

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 384 Kbytes of Flash

STM32F401VDT6
STMicroelectronics
1: $8.79
26In Stock
2,700On Order

Mfr. Part No.
STM32F401VDT6

Mouser Part No
511-STM32F401VDT6

STMicroelectronics

ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 384 Kbytes of Flash

Learn More

Datasheet

26In Stock

2,700On Order

$8.79

$6.21

$5.81

$5.37

$5.08

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

84 MHz

384 kB

96 kB

12 bit

81 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 1 Mbyte of Flash

STM32F405RGT7
STMicroelectronics
1: $13.85
20In Stock
5,760On Order

Mfr. Part No.
STM32F405RGT7

Mouser Part No
511-STM32F405RGT7

STMicroelectronics

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 1 Mbyte of Flash

Learn More

Datasheet

20In Stock

5,760On Order

$13.85

$10.86

$9.48

$8.91

$8.43

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

168 MHz

1 MB

192 kB

12 bit

51 I/O

- 40 C

+ 105 C

Tray

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 1 Mbyte of Flash

STM32F405RGT7TR
STMicroelectronics
1: $13.39
5In Stock
4,000On Order

Mfr. Part No.
STM32F405RGT7TR

Mouser Part No
511-STM32F405RGT7TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 1 Mbyte of Flash

Learn More

Datasheet

5In Stock

4,000On Order

Cut Tape

$13.39

$10.45

$9.67

$8.93

View

Reel

$8.14

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

168 MHz

1 MB

192 kB

12 bit

51 I/O

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

ARM Cortex M4 Core Embedded Processors & Controllers

Types of Embedded Processors & Controllers

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AQFN-73
BGA-100
BGA-112
BGA-120
BGA-121
BGA-124
BGA-125
BGA-144
BGA-146
BGA-152
BGA-168
BGA-169
BGA-176
BGA-192
BGA-196
BGA-216
BGA-224
BGA-256
BGA-64
CQFP-176

1 MHz
5 MHz
20 MHz
25 MHz
32 MHz
39 MHz
40 MHz
48 MHz
50 MHz
64 MHz
72 MHz
80 MHz
84 MHz
96 MHz
100 MHz
112 MHz
120 MHz
144 MHz
150 MHz
160 MHz

0 B
6 kB
8 kB, 1 MB
16 kB
32 kB
32 kB, 1 MB
64 kB
96 kB
128 kB
192 kB
220 kB, 512 kB
224 kB
256 kB
320 kB
352 kB
384 kB
416 kB
512 kB
640 kB
768 kB

2 kB
4 kB
8 kB
12 kB
16 kB
18 KB
20 kB
22 kB
24 KB
24 kB
32 kB
40 kB
48 kB
64 kB
64 kbit
65 kB
80 kB
88 kB
96 kB
112 kB

2 x 12 bit
2 x 16 bit
2 x 6 bit/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
6 bit/8 bit/10 bit/12 bit
8 bit
8 bit, 10 bit, 12 bit
10 bit
10 bit, 12 bit
10 bit, 13 bit
12 bit
12 bit, 14 bit
12 bit, 16 bit
12 bit, 3 x 16 bit
14 bit
16 bit

9 I/O
10 I/O
15 I/O
16 I/O
18 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
31 I/O
32 I/O
33 I/O
34 I/O