Unit Price:$0.32
Ext Price:$0.32



ATSHA204A-MAHCZ-T from Microchip Technology is a hardware security device providing SHA-256 authentication and protected key storage.
Specifications were checked against the manufacturer data sheet and current distributor listing.
ATSHA204A combines a SHA-256 engine, secure key storage, a unique serial number and low-power serial communication for embedded authentication.
Protects up to 16 secret keys in tamper-resistant hardware.
Provides SHA-256 MAC/HMAC, RNG and a unique 72-bit serial number.
Available in an established surface-mount or through-hole ordering format.
Electrical and environmental limits are defined by the official data sheet.
SHA-256 authentication IC
High-speed single-wire interface
2.0 V to 5.5 V supply; industrial temperature range
8-UFDFN Exposed Pad
This ordering code uses the 8-UFDFN Exposed Pad package.

Confirm exact numbering and the latest land pattern before PCB release.
| OTP | 512 bits |
|---|---|
| Key slots | Up to 16 |
| EEPROM | 4.5 Kbit |
| Algorithm | SHA-256 MAC and HMAC |
| Supply | 2.0 V to 5.5 V |
| Sleep current | <150 nA |
| Serial number | Unique 72-bit |
| Package | 8-UFDFN Exposed Pad |
| Interface | Single-wire |
| Key length | 256 bits |
| Mounting | Surface mount |
| I/O voltage | 1.8 V to 5.5 V |
ATSHA204A-SSHCZ-T is a related product in the library. Confirm electrical behavior, package, pinout, ordering media and configuration before substitution.
Similarity of family name or package does not establish drop-in compatibility.
Microchip lists ATSHA204A as in production.
Authenticates accessories, modules and consumables.
Protects firmware and ecosystem authorization.
Match the complete ordering code, package marking and reel or lot label to authorized-channel records. Inspect moisture handling and solderability requirements before assembly.
SHA-256 authentication IC
8-UFDFN Exposed Pad
No. Validate all electrical, mechanical and configuration differences first.
No. The registered package JPG is currently missing.
Use the latest manufacturer documentation for schematic, PCB, thermal and production approval. Distributor attributes are useful for sourcing but do not replace the official data sheet.
The following parts include "ATSHA204A-MAHCZ-T" in Silicon Labs ATSHA204A-MAHCZ-T.
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| Qty. | Unit Price | Ext. Price |
| 1+ | $0.32 | $0.32 |
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