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

MSP430 Core Embedded Processors & Controllers

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

Types of Embedded Processors & Controllers

List Images

Results: 2.062

Applied Filters:

Core = MSP430

Product Type

Mounting Style

Package/Case

Maximum Clock Frequency

Program Memory Size

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; }

Download Table (.CSV)

Part #

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU 4kB FL 256B RAM Com A 595-MSP430F2121TPWR

MSP430F2121TPW
Texas Instruments
1: Rp49.748,28
280In Stock

Mfr. Part No.
MSP430F2121TPW

Mouser Part No
595-MSP430F2121TPW

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU 4kB FL 256B RAM Com A 595-MSP430F2121TPWR

Learn More

Datasheet

280In Stock

Rp49.748,28

Rp37.136,04

Rp35.734,68

Rp34.333,32

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

MSP430

16 bit

16 MHz

4 kB

256 B

No ADC

16 I/O

- 40 C

+ 105 C

Tube

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU A 595-MSP430F2132IR A 595-MSP430F2132IRTVR

MSP430F2132IRTVT
Texas Instruments
1: Rp118.239,75
250In Stock

Mfr. Part No.
MSP430F2132IRTVT

Mouser Part No
595-MSP430F2132IRTVT

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU A 595-MSP430F2132IR A 595-MSP430F2132IRTVR

Learn More

Datasheet

250In Stock

Cut Tape

Rp118.239,75

Rp86.884,32

Rp80.928,54

Rp71.119,02

Reel

Rp53.251,68

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

16-bit Microcontrollers - MCU

SMD/SMT

WQFN-32

MSP430

16 bit

16 MHz

8 kB

512 B

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU A 595-MSP430F2419TP A 595-MSP430F2419TPN

MSP430F2419TPNR
Texas Instruments
1: Rp289.556,01
23In Stock

Mfr. Part No.
MSP430F2419TPNR

Mouser Part No
595-MSP430F2419TPNR

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU A 595-MSP430F2419TP A 595-MSP430F2419TPN

Learn More

Datasheet

23In Stock

Cut Tape

Rp289.556,01

Rp220.013,52

Rp210.904,68

Rp185.855,37

View

Reel

Rp153.273,75

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-80

MSP430

16 bit

16 MHz

120 kB

8 kB

12 bit

48 I/O

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr MC U 16KB Flash A 595- A 595-MSP430F4132IRGZR

MSP430F4132IRGZT
Texas Instruments
1: Rp104.926,83
164In Stock

Mfr. Part No.
MSP430F4132IRGZT

Mouser Part No
595-MSP430F4132IRGZT

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr MC U 16KB Flash A 595- A 595-MSP430F4132IRGZR

Learn More

Datasheet

164In Stock

Cut Tape

Rp104.926,83

Rp89.161,53

Reel

Rp54.653,04

Rp52.726,17

Rp51.675,15

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 250

16-bit Microcontrollers - MCU

SMD/SMT

VQFN-48

MSP430

16 bit

16 MHz

8 kB

512 B

No ADC

48 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU A 595-MSP430F425AIP A 595-MSP430F425AIPMR

MSP430F425AIPM
Texas Instruments
1: Rp168.688,71
12In Stock

Mfr. Part No.
MSP430F425AIPM

Mouser Part No
595-MSP430F425AIPM

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU A 595-MSP430F425AIP A 595-MSP430F425AIPMR

Learn More

Datasheet

12In Stock

Rp168.688,71

Rp126.472,74

Rp120.516,96

Rp86.709,15

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-64

MSP430

16 bit

16 MHz

16 kB

512 B

16 bit

14 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU 16-bit Ultra-Lo-Pwr A 595-MSP430F4270IRG A 595-MSP430F4270IRGZT

MSP430F4270IRGZR
Texas Instruments
1: Rp202.146,18
8In Stock

Mfr. Part No.
MSP430F4270IRGZR

Mouser Part No
595-MSP430F4270IRGZR

Texas Instruments

16-bit Microcontrollers - MCU 16-bit Ultra-Lo-Pwr A 595-MSP430F4270IRG A 595-MSP430F4270IRGZT

Learn More

Datasheet

8In Stock

Cut Tape

Rp202.146,18

Rp157.127,49

Rp149.945,52

Rp130.151,31

View

Reel

Rp96.343,50

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

16-bit Microcontrollers - MCU

SMD/SMT

VQFN-48

MSP430

16 bit

16 MHz

32 kB

256 B

16 bit

32 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU A 595-MSP430F4481IP A 595-MSP430F4481IPZR

MSP430F4481IPZ
Texas Instruments
1: Rp291.833,22
92In Stock

Mfr. Part No.
MSP430F4481IPZ

Mouser Part No
595-MSP430F4481IPZ

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultra-Lo-Pwr MCU A 595-MSP430F4481IP A 595-MSP430F4481IPZR

Learn More

Datasheet

92In Stock

Rp291.833,22

Rp221.765,22

Rp203.897,88

Rp169.739,73

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-100

MSP430

16 bit

16 MHz

48 kB

2 kB

12 bit

48 I/O

- 40 C

+ 85 C

16-bit Microcontrollers - MCU 16B Ultr-Lo-Pw 116KB Fl 6 Sigma-Delta AD A 595-MSP430F47186IPZR

MSP430F47186IPZ
Texas Instruments
1: Rp354.018,57
6In Stock

Mfr. Part No.
MSP430F47186IPZ

Mouser Part No
595-MSP430F47186IPZ

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultr-Lo-Pw 116KB Fl 6 Sigma-Delta AD A 595-MSP430F47186IPZR

Learn More

Datasheet

6In Stock

Rp354.018,57

Rp286.052,61

Rp217.210,80

Rp217.035,63

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-100

MSP430

16 bit

16 MHz

116 kB

8 kB

6 x 16 bit

68 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr MC U 120KB Flash A 595 A 595-MSP430F47193IPZR

MSP430F47193IPZ
Texas Instruments
1: Rp320.911,44
4In Stock

Mfr. Part No.
MSP430F47193IPZ

Mouser Part No
595-MSP430F47193IPZ

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr MC U 120KB Flash A 595 A 595-MSP430F47193IPZR

Learn More

Datasheet

4In Stock

Rp320.911,44

Rp243.836,64

Rp186.205,71

Rp186.030,54

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-100

MSP430

16 bit

16 MHz

120 kB

4 kB

16 bit

68 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F5502IRGZR A 595-MSP430F5502IRGZR

MSP430F5502IRGZT
Texas Instruments
1: Rp86.183,64
92In Stock

Mfr. Part No.
MSP430F5502IRGZT

Mouser Part No
595-MSP430F5502IRGZT

Texas Instruments

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F5502IRGZR A 595-MSP430F5502IRGZR

Learn More

Datasheet

92In Stock

Cut Tape

Rp86.183,64

Rp65.688,75

Rp60.608,82

Rp55.003,38

Reel

Rp52.025,49

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

16-bit Microcontrollers - MCU

SMD/SMT

VQFN-48

MSP430

16 bit

25 MHz

24 kB

4 kB

No ADC

31 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU 25 MHz MCU with 64KB Flash 4KB SRAM 12 A A 595-MSP430F5524IZXHR

MSP430F5524IZXH
Texas Instruments
1: Rp225.618,96
7In Stock

Mfr. Part No.
MSP430F5524IZXH

Mouser Part No
595-MSP430F5524IZXH

Texas Instruments

16-bit Microcontrollers - MCU 25 MHz MCU with 64KB Flash 4KB SRAM 12 A A 595-MSP430F5524IZXHR

Learn More

Datasheet

7In Stock

Rp225.618,96

Rp183.402,99

Rp174.819,66

Rp151.872,39

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

NFBGA-80

MSP430

16 bit

25 MHz

64 kB

4 kB

12 bit

47 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr Mi crocontroller A 595 A 595-MSP430F5525IPNR

MSP430F5525IPN
Texas Instruments
1: Rp208.277,13
114In Stock

Mfr. Part No.
MSP430F5525IPN

Mouser Part No
595-MSP430F5525IPN

Texas Instruments

16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr Mi crocontroller A 595 A 595-MSP430F5525IPNR

Learn More

Datasheet

114In Stock

Rp208.277,13

Rp162.032,25

Rp154.499,94

Rp129.450,63

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-80

MSP430

16 bit

25 MHz

64 kB

4 kB

12 bit

63 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU 20 MHz MCU with 256K B Flash 18KB SRAM

MSP430F6438IZCAR
Texas Instruments
1: Rp240.683,58
8In Stock

Mfr. Part No.
MSP430F6438IZCAR

Mouser Part No
595-MSP430F6438IZCAR

Texas Instruments

16-bit Microcontrollers - MCU 20 MHz MCU with 256K B Flash 18KB SRAM

Learn More

Datasheet

8In Stock

Cut Tape

Rp240.683,58

Rp182.877,48

Rp175.345,17

Rp154.499,94

View

Reel

Rp124.896,21

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

16-bit Microcontrollers - MCU

SMD/SMT

NFBGA-113

MSP430

16 bit

25 MHz

256 kB

18 kB

12 bit

74 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F6634IPZ A A 595-MSP430F6634IPZ

MSP430F6634IPZR
Texas Instruments
1: Rp189.709,11
7In Stock

Mfr. Part No.
MSP430F6634IPZR

Mouser Part No
595-MSP430F6634IPZR

Texas Instruments

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F6634IPZ A A 595-MSP430F6634IPZ

Learn More

Datasheet

7In Stock

Cut Tape

Rp189.709,11

Rp158.003,34

Rp149.420,01

Rp145.916,61

View

Reel

Rp108.430,23

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-100

MSP430

16 bit

25 MHz

192 kB

16 kB

12 bit

74 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU 20 MHz MCU with 512K B Flash 64KB SRAM A A 595-MSP430F6659IZCAR

MSP430F6659IZCAT
Texas Instruments
1: Rp376.089,99
5In Stock

Mfr. Part No.
MSP430F6659IZCAT

Mouser Part No
595-MSP430F6659IZCAT

Texas Instruments

16-bit Microcontrollers - MCU 20 MHz MCU with 512K B Flash 64KB SRAM A A 595-MSP430F6659IZCAR

Learn More

Datasheet

5In Stock

Cut Tape

Rp376.089,99

Rp300.942,06

Rp282.198,87

Rp261.528,81

Reel

Rp251.368,95

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

16-bit Microcontrollers - MCU

SMD/SMT

NFBGA-113

MSP430

16 bit

25 MHz

512 kB

66 kB

12 bit

74 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU Single-phase meterin g SoC with 2 Sigma- A 595-MSP430F6721AIPNR

MSP430F6721AIPN
Texas Instruments
1: Rp157.127,49
9In Stock

Mfr. Part No.
MSP430F6721AIPN

Mouser Part No
595-MSP430F6721AIPN

Texas Instruments

16-bit Microcontrollers - MCU Single-phase meterin g SoC with 2 Sigma- A 595-MSP430F6721AIPNR

Learn More

Datasheet

9In Stock

Rp157.127,49

Rp117.889,41

Rp112.283,97

Rp79.352,01

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-80

MSP430

16 bit

25 MHz

32 kB

2 kB

10 bit

52 I/O

- 40 C

+ 85 C

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F6731IPNR A 595-MSP430F6731IPNR

MSP430F6731IPN
Texas Instruments
1: Rp162.557,76
94In Stock

Mfr. Part No.
MSP430F6731IPN

Mouser Part No
595-MSP430F6731IPN

Texas Instruments

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F6731IPNR A 595-MSP430F6731IPNR

Learn More

Datasheet

94In Stock

Rp162.557,76

Rp121.918,32

Rp116.312,88

Rp81.979,56

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-80

MSP430

16 bit

25 MHz

32 kB

2 kB

10 bit

52 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F6735IPNR A 595-MSP430F6735IPNR

MSP430F6735IPN
Texas Instruments
1: Rp182.702,31
71In Stock

Mfr. Part No.
MSP430F6735IPN

Mouser Part No
595-MSP430F6735IPN

Texas Instruments

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F6735IPNR A 595-MSP430F6735IPNR

Learn More

Datasheet

71In Stock

Rp182.702,31

Rp141.362,19

Rp134.705,73

Rp94.591,80

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-80

MSP430

16 bit

25 MHz

128 kB

4 kB

10 bit

52 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F67681IPZ A 595-MSP430F67681IPZ

MSP430F67681IPZR
Texas Instruments
1: Rp266.258,40
6In Stock

Mfr. Part No.
MSP430F67681IPZR

Mouser Part No
595-MSP430F67681IPZR

Texas Instruments

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F67681IPZ A 595-MSP430F67681IPZ

Learn More

Datasheet

6In Stock

Cut Tape

Rp266.258,40

Rp202.321,35

Rp193.913,19

Rp170.965,92

View

Reel

Rp141.187,02

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-100

MSP430

16 bit

512 kB

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

16-bit Microcontrollers - MCU 512KB Flsh 16KB SRAM Mixed Signal MCU A A 595-MSP430F6768AIPZR

MSP430F6768AIPZ
Texas Instruments
1: Rp326.867,22
4In Stock

Mfr. Part No.
MSP430F6768AIPZ

Mouser Part No
595-MSP430F6768AIPZ

Texas Instruments

16-bit Microcontrollers - MCU 512KB Flsh 16KB SRAM Mixed Signal MCU A A 595-MSP430F6768AIPZR

Learn More

Datasheet

4In Stock

Rp326.867,22

Rp248.391,06

Rp189.533,94

Rp189.358,77

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-100

MSP430

16 bit

25 MHz

512 kB

16 kB

10 bit

90 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU 512KB Flsh 32KB SRAM Mixed Signal MCU A A 595-MSP430F6769AIPZR

MSP430F6769AIPZ
Texas Instruments
1: Rp326.867,22
4In Stock

Mfr. Part No.
MSP430F6769AIPZ

Mouser Part No
595-MSP430F6769AIPZ

Texas Instruments

16-bit Microcontrollers - MCU 512KB Flsh 32KB SRAM Mixed Signal MCU A A 595-MSP430F6769AIPZR

Learn More

Datasheet

4In Stock

Rp326.867,22

Rp248.391,06

Rp189.533,94

Rp189.358,77

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-100

MSP430

16 bit

25 MHz

512 kB

32 kB

10 bit

62 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F67751IPZR A 595-MSP430F67751IPZR

MSP430F67751IPZ
Texas Instruments
1: Rp204.248,22
52In Stock

Mfr. Part No.
MSP430F67751IPZ

Mouser Part No
595-MSP430F67751IPZ

Texas Instruments

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-MSP430F67751IPZR A 595-MSP430F67751IPZR

Learn More

Datasheet

52In Stock

Rp204.248,22

Rp158.879,19

Rp151.522,05

Rp107.204,04

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-100

MSP430

16 bit

25 MHz

128 kB

16 kB

10 bit

62 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU 128KB Flsh 16KB SRAM Mixed Signal MCU A A 595-SP430F6775AIPEUR

MSP430F6775AIPEU
Texas Instruments
1: Rp219.838,35
6In Stock

Mfr. Part No.
MSP430F6775AIPEU

Mouser Part No
595-MSP430F6775AIPEU

Texas Instruments

16-bit Microcontrollers - MCU 128KB Flsh 16KB SRAM Mixed Signal MCU A A 595-SP430F6775AIPEUR

Learn More

Datasheet

6In Stock

Rp219.838,35

Rp178.673,40

Rp170.440,41

Rp121.392,81

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-128

MSP430

16 bit

25 MHz

128 kB

16 kB

10 bit

90 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-SP430F67761IPEUR A 595-SP430F67761IPEUR

MSP430F67761IPEU
Texas Instruments
1: Rp218.962,50
6In Stock

Mfr. Part No.
MSP430F67761IPEU

Mouser Part No
595-MSP430F67761IPEU

Texas Instruments

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-SP430F67761IPEUR A 595-SP430F67761IPEUR

Learn More

Datasheet

6In Stock

Rp218.962,50

Rp177.972,72

Rp169.739,73

Rp120.867,30

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-128

MSP430

16 bit

25 MHz

256 kB

16 kB

10 bit

90 I/O

- 40 C

+ 85 C

Tray

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-SP430F67771IPEUR A 595-SP430F67771IPEUR

MSP430F67771IPEU
Texas Instruments
1: Rp414.977,73
3In Stock

Mfr. Part No.
MSP430F67771IPEU

Mouser Part No
595-MSP430F67771IPEU

Texas Instruments

16-bit Microcontrollers - MCU Mixed Signal MCU A 5 95-SP430F67771IPEUR A 595-SP430F67771IPEUR

Learn More

Datasheet

3In Stock

Rp414.977,73

Rp324.590,01

Rp310.050,90

Rp255.397,86

View

Min.: 1
Mult.: 1

16-bit Microcontrollers - MCU

SMD/SMT

LQFP-128

MSP430

16 bit

25 MHz

256 kB

32 kB

10 bit

90 I/O

- 40 C

+ 85 C

Tray

MSP430 Core Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

Die
DSBGA-24
DSBGA-40
DSBGA-49
DSBGA-64
HTQFP-48
LQFP-100
LQFP-128
LQFP-48
LQFP-64
LQFP-80
NFBGA-113
nFBGA-113
NFBGA-80
NFBGA-87
PDIP-14
PDIP-20
QFN-16
SOIC-20
SOIC-28

512 B
1 kB
2 kB
4 kB
8 kB
12 kB
16 kB
24 kB
32 kB
48 kB
55 kB
56 kB
60 kB
64 kB
64.5 kB
92 kB
96 kB
116 kB
120 kB
128 kB

4 I/O
5 I/O
10 I/O
11 I/O
12 I/O
14 I/O
15 I/O
16 I/O
17 I/O
19 I/O
21 I/O
22 I/O
24 I/O
27 I/O
28 I/O
29 I/O
30 I/O
31 I/O
32 I/O
33 I/O