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ATSHA204A-STUCZ-T Breakout
IC AUTH SHA256 256-BIT KEY SOT23-3
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Design a Custom BoardAbout This Component
Microchip CryptoAuthentication IC providing secure symmetric authentication via SHA-256 hashing and HMAC with protected hardware key storage. Features 256-bit key length, 4.5KB EEPROM, unique 72-bit serial number, and I2C/single-wire interface. Operates at 2.0-5.5V with <150nA sleep current, ideal for anti-cloning, secure boot, and message authentication applications.
Package: SOT-23-3 · 3 pins
Why does this need a breakout?
SOT-23's tiny 0.95mm pin pitch and compact form factor make hand-soldering tedious and prone to bridging errors. A breakout board breaks out the three pins to standard 0.1" spacing for breadboard prototyping, eliminating the need for specialized soldering equipment and enabling fast circuit iteration with transistors, diodes, and small-signal components.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Microchip Technology |
| Part Number | ATSHA204A-STUCZ-T |
| Package | SOT-23-3 |
| Pin Count | 3 |
| Type | Authentication Chip |
What's Included
BILL OF MATERIALS
- 1x ATSHA204A-STUCZ-T soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL