Security ICs / Authentication ICs

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CryptoAuthentication™ Devices

Microchip Technology CryptoAuthentication™ Devices offer hardware-based secure storage to effectively keep secret keys hidden from unauthorized users. These small, very-low-power IC work with any microcontroller (MCU) or microprocessor (MPU) to provide flexible solutions for securing Internet of Things (IoT) nodes used in home automation, medical devices, wearables, and many other applications. They can also be used to protect the authenticity of consumables and accessories, ensuring that only legitimate ones work with your product and preserving your revenue stream.

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Part #

Security ICs / Authentication ICs Client MAC - Parasitic Power 2-Pad VSFN SWI, Bulk

SHA106-MCVCZ-B
Microchip Technology
1: $0.41
8,724In Stock

Mfr. Part #
SHA106-MCVCZ-B

Mouser Part #
579-SHA106-MCVCZ-B

Microchip Technology

Security ICs / Authentication ICs Client MAC - Parasitic Power 2-Pad VSFN SWI, Bulk

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Datasheet

8,724In Stock

$0.41

$0.382

Min.: 1
Mult.: 1

Security ICs / Authentication ICs Client MAC, 105C, SWI, 5K, 3Ld-Contact

SHA104-RBVCZ-T
Microchip Technology
1: $0.55
4,795In Stock

Mfr. Part #
SHA104-RBVCZ-T

Mouser Part #
579-SHA104-RBVCZ-T

Microchip Technology

Security ICs / Authentication ICs Client MAC, 105C, SWI, 5K, 3Ld-Contact

Learn More

Datasheet

4,795In Stock

Cut Tape

$0.55

Reel

$0.513

$0.508

Min.: 1
Mult.: 1

: 5,000

Reel, Cut Tape

Security ICs / Authentication ICs CryptAuthEE SHA256 TWI

ATSHA204A-SSHDA-T
Microchip Technology
1: $0.48
51,241In Stock

Mfr. Part #
ATSHA204A-SSHDA-T

Mouser Part #
556-ATSHA204A-SSHDAT

Microchip Technology

Security ICs / Authentication ICs CryptAuthEE SHA256 TWI

Learn More

Datasheet

51,241In Stock

Cut Tape

$0.48

$0.475

$0.455

$0.452

Reel

$0.388

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs CryptAuthEE SHA256 1Wir

ATSHA204A-STUCZ-T
Microchip Technology
1: $0.60
26,944In Stock

Mfr. Part #
ATSHA204A-STUCZ-T

Mouser Part #
566-ATSHA204ASTUCZ-T

Microchip Technology

Security ICs / Authentication ICs CryptAuthEE SHA256 1Wir

Learn More

Datasheet

26,944In Stock

Cut Tape

$0.60

$0.582

$0.577

Reel

$0.475

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-3

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs 32Kbit AES Auth I2C udfn(MA), GR

ATAES132A-MAHER-S
Microchip Technology
1: $0.90
3,573In Stock

Mfr. Part #
ATAES132A-MAHER-S

Mouser Part #
556-ATAES132A-MAHERS

Microchip Technology

Security ICs / Authentication ICs 32Kbit AES Auth I2C udfn(MA), GR

Learn More

Datasheet

3,573In Stock

Cut Tape

$0.90

$0.893

$0.892

Reel

$0.75

Min.: 1
Mult.: 1

: 3,000

128 bit

UDFN-8

Reel, Cut Tape

Security ICs / Authentication ICs 32Kbit AES Auth I2C soic(S), GR

ATAES132A-SHER-B
Microchip Technology
1: $0.90
6,476In Stock
6,300Expected 11/30/2026

Mfr. Part #
ATAES132A-SHER-B

Mouser Part #
556-ATAES132A-SHER-B

Microchip Technology

Security ICs / Authentication ICs 32Kbit AES Auth I2C soic(S), GR

Learn More

Datasheet

6,476In Stock

6,300Expected 11/30/2026

$0.90

$0.81

$0.775

Min.: 1
Mult.: 1

128 bit

SMD/SMT

SOIC-8

Tube

Security ICs / Authentication ICs CryptAuth SHA256 I2C

ATSHA204A-SSHDA-B
Microchip Technology
1: $0.48
13,881In Stock

Mfr. Part #
ATSHA204A-SSHDA-B

Mouser Part #
556-ATSHA204A-SSHDAB

Microchip Technology

Security ICs / Authentication ICs CryptAuth SHA256 I2C

Learn More

Datasheet

13,881In Stock

$0.48

Min.: 1
Mult.: 1

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Tube

Security ICs / Authentication ICs CryptAuthEE SHA256 TWI

ATSHA204A-XHDA-T
Microchip Technology
1: $0.69
17,479In Stock

Mfr. Part #
ATSHA204A-XHDA-T

Mouser Part #
556-ATSHA204A-XHDA-T

Microchip Technology

Security ICs / Authentication ICs CryptAuthEE SHA256 TWI

Learn More

Datasheet

17,479In Stock

Cut Tape

$0.69

$0.688

$0.672

Reel

$0.668

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

TSSOP-8

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs CustSpec SHA256 UDNF

ATSHA204A-RBHCZ-T
Microchip Technology
1: $0.71
2,504In Stock

Mfr. Part #
ATSHA204A-RBHCZ-T

Mouser Part #
566-ATSHA204ARBHCZ-T

Microchip Technology

Security ICs / Authentication ICs CustSpec SHA256 UDNF

Learn More

Datasheet

2,504In Stock

Cut Tape

$0.71

$0.704

$0.647

Reel

$0.575

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

Contact-3

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs ECC/ECDSA/ECDHE I2C small 3K reel UDFN

ATECC608A-MAHDA-S
Microchip Technology
1: $0.99
3,199In Stock
NRND

Mfr. Part #
ATECC608A-MAHDA-S

Mouser Part #
556-ATECC608AMAHDAS

NRND

Microchip Technology

Security ICs / Authentication ICs ECC/ECDSA/ECDHE I2C small 3K reel UDFN

Learn More

Datasheet

3,199In Stock

Cut Tape

$0.99

$0.98

$0.978

$0.976

$0.971

Reel

$0.80

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

UDFN-8

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs ECC/ECDSA/ECDHE I2C SOIC T/R

ATECC608A-SSHDA-T
Microchip Technology
1: $1.00
5,957In Stock
16,000Expected 11/30/2026
NRND

Mfr. Part #
ATECC608A-SSHDA-T

Mouser Part #
556-ATECC608ASSHDAT

NRND

Microchip Technology

Security ICs / Authentication ICs ECC/ECDSA/ECDHE I2C SOIC T/R

Learn More

Datasheet

5,957In Stock

16,000Expected 11/30/2026

Cut Tape

$1.00

$0.998

$0.995

Reel

$0.924

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs 32Kbit AES Auth SPI soic(S), GR

ATAES132A-SHEQ-B
Microchip Technology
1: $0.97
93In Stock
800Expected 9/14/2026

Mfr. Part #
ATAES132A-SHEQ-B

Mouser Part #
556-ATAES132A-SHEQ-B

Microchip Technology

Security ICs / Authentication ICs 32Kbit AES Auth SPI soic(S), GR

Learn More

Datasheet

93In Stock

800Expected 9/14/2026

$0.97

$0.942

$0.941

$0.899

$0.893

Min.: 1
Mult.: 1

128 bit

SMD/SMT

SOIC-8

Tube

Security ICs / Authentication ICs SHA256, I2C, 8-UDFN, 3K REEL

ATSHA204A-MAHDA-S
Microchip Technology
1: $0.45
952In Stock
9,000On Order

Mfr. Part #
ATSHA204A-MAHDA-S

Mouser Part #
556-ATSHA204A-MAHDAS

Microchip Technology

Security ICs / Authentication ICs SHA256, I2C, 8-UDFN, 3K REEL

Learn More

Datasheet

952In Stock

9,000On Order

Cut Tape

$0.45

$0.444

Reel

$0.384

Min.: 1
Mult.: 1

: 3,000

72 bit

UDFN-8

Reel, Cut Tape

Security ICs / Authentication ICs CryptAuthEE SHA256 1Wir

ATSHA204A-SSHCZ-T
Microchip Technology
1: $0.50
2,079In Stock
4,000Expected 9/10/2026

Mfr. Part #
ATSHA204A-SSHCZ-T

Mouser Part #
556-ATSHA204A-SSHCZT

Microchip Technology

Security ICs / Authentication ICs CryptAuthEE SHA256 1Wir

Learn More

Datasheet

2,079In Stock

4,000Expected 9/10/2026

Cut Tape

$0.50

Reel

$0.50

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs 32Kbit AES Auth I2C udfn(MA), GR

ATAES132A-MAHER-T
Microchip Technology
1: $0.90
28,159Expected 9/10/2026

Mfr. Part #
ATAES132A-MAHER-T

Mouser Part #
556-ATAES132AMAHERT

Microchip Technology

Security ICs / Authentication ICs 32Kbit AES Auth I2C udfn(MA), GR

Learn More

Datasheet

28,159Expected 9/10/2026

Cut Tape

$0.90

$0.805

Reel

$0.805

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

128 bit

SMD/SMT

UDFN-8

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs CryptAuthEE SHA256 I2C

ATSHA204A-MAHDA-T
Microchip Technology
1: $0.42
28,951Expected 9/8/2026

Mfr. Part #
ATSHA204A-MAHDA-T

Mouser Part #
566-ATSHA204AMAHDA-T

Microchip Technology

Security ICs / Authentication ICs CryptAuthEE SHA256 I2C

Learn More

Datasheet

28,951Expected 9/8/2026

Cut Tape

$0.42

$0.414

$0.408

$0.407

View

Reel

$0.338

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

UDFN-8

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs Client MAC, 105C, SWI, Bulk, 3Ld-Contact

SHA104-RBVCZ-B
Microchip Technology
1: $0.60
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
SHA104-RBVCZ-B

Mouser Part #
579-SHA104-RBVCZ-B

Microchip Technology

Security ICs / Authentication ICs Client MAC, 105C, SWI, Bulk, 3Ld-Contact

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$0.60

$0.591

$0.59

$0.556

View

Min.: 1
Mult.: 1

Tube

Security ICs / Authentication ICs CryptAuthEE SHA256 1Wir

ATSHA204A-XHCZ-T
Microchip Technology
5,000: $0.94
Non-Stocked Lead-Time 36 Weeks

Mfr. Part #
ATSHA204A-XHCZ-T

Mouser Part #
556-ATSHA204A-XHCZ-T

Microchip Technology

Security ICs / Authentication ICs CryptAuthEE SHA256 1Wir

Learn More

Datasheet

Non-Stocked Lead-Time 36 Weeks

Reel

$0.94

Min.: 5,000
Mult.: 5,000

: 5,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

TSSOP-8

Reel

Security ICs / Authentication ICs Cust Spec SWI, 3-RBH

ATSHA204A-RBHCZ-B
Microchip Technology
1,120: $0.71
Non-Stocked Lead-Time 28 Weeks

Mfr. Part #
ATSHA204A-RBHCZ-B

Mouser Part #
556-ATSHA204ARBHCZB

Microchip Technology

Security ICs / Authentication ICs Cust Spec SWI, 3-RBH

Learn More

Datasheet

Non-Stocked Lead-Time 28 Weeks

$0.71

Min.: 1,120
Mult.: 56

72 bit

CONTACT-3

Tube

Security ICs / Authentication ICs Crypto Products, ECC 8kb

ATECC108A-RBHCZ-T
Microchip Technology
10,000: $1.16
Non-Stocked Lead-Time 32 Weeks
NRND

Mfr. Part #
ATECC108A-RBHCZ-T

Mouser Part #
556-ATECC108A-RBHCZT

NRND

Microchip Technology

Security ICs / Authentication ICs Crypto Products, ECC 8kb

Learn More

Datasheet

Non-Stocked Lead-Time 32 Weeks

Cut Tape

$1.16

Min.: 10,000
Mult.: 5,000

: 5,000

3RB-3

Reel

Security ICs / Authentication ICs Crypto Products, ECC 8kb

ATECC108A-SSHCZ-B
Microchip Technology
800: $1.09
Non-Stocked Lead-Time 28 Weeks
NRND

Mfr. Part #
ATECC108A-SSHCZ-B

Mouser Part #
556-ATECC108A-SSHCZB

NRND

Microchip Technology

Security ICs / Authentication ICs Crypto Products, ECC 8kb

Learn More

Datasheet

Non-Stocked Lead-Time 28 Weeks

$1.09

Min.: 800
Mult.: 100

SOIC-8

Tube

Security ICs / Authentication ICs Crypto Products, ECC 8kb

ATECC108A-SSHCZ-T
Microchip Technology
4,000: $1.10
Non-Stocked Lead-Time 29 Weeks
NRND

Mfr. Part #
ATECC108A-SSHCZ-T

Mouser Part #
556-ATECC108A-SSHCZT

NRND

Microchip Technology

Security ICs / Authentication ICs Crypto Products, ECC 8kb

Learn More

Datasheet

Non-Stocked Lead-Time 29 Weeks

Reel

$1.10

Min.: 4,000
Mult.: 4,000

: 4,000

SOIC-8

Reel

Security ICs / Authentication ICs ECDH/ECC 10Kb 8ld SOIC SWI, T&R

ATECC508A-SSHCZ-T
Microchip Technology
1: $1.05
Non-Stocked Lead-Time 28 Weeks
NRND

Mfr. Part #
ATECC508A-SSHCZ-T

Mouser Part #
556-ATECC508A-SSHCZT

NRND

Microchip Technology

Security ICs / Authentication ICs ECDH/ECC 10Kb 8ld SOIC SWI, T&R

Learn More

Datasheet

Non-Stocked Lead-Time 28 Weeks

Cut Tape

$1.05

Reel

$0.883

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Security ICs / Authentication ICs ECC 10Kb, I2C 8-UDFN, T&R

ATECC508A-MAHAW-S
Microchip Technology
21,000: $1.23
Non-Stocked Lead-Time 37 Weeks
NRND

Mfr. Part #
ATECC508A-MAHAW-S

Mouser Part #
579-ATECC508AMAHAW-S

NRND

Microchip Technology

Security ICs / Authentication ICs ECC 10Kb, I2C 8-UDFN, T&R

Learn More

Datasheet

Non-Stocked Lead-Time 37 Weeks

Cut Tape

$1.23

Min.: 21,000
Mult.: 3,000

: 3,000

72 bit

5.5 V

2 V

- 40 C

+ 85 C

SMD/SMT

UDFN-8

Reel

CryptoAuthentication™ Devices

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