AT88SA10HS-TSU-T Atmel, AT88SA10HS-TSU-T Datasheet - Page 14

• Manufacturer Part Number: AT88SA10HS-TSU-T
• Description: IC HOST AUTHENTICATION SOT23-3
• Manufacturer: Atmel
• Series: CryptoAuthentication™r
• Type: Authentication Chipr

Specifications of AT88SA10HS-TSU-T

• Applications: Networking & Communications
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Interface Type: 1 Wire
• Minimum Operating Temperature: - 40 C
• Number Of Timers: 1
• Program Memory Size: 72 bit
• Program Memory Type: ROM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Battery Authentication
The AT88SA102S chip can be used in battery powered embedded systems to authenticate the battery (client) that
connects to the portable embedded system (host). The AT88SA102S is installed in the battery; on startup the host
communicates to the client by sending a challenge; the client responds with a unique response. The AT88SA102S is
also capable of configuration where one host can use multiple replacement batteries or battery models. Figure 13
displays the configuration of the AT88SA102S device for battery authentication.
Figure 13.
An additional level of security can be added to the system by using the AT88SA10HS in the host. The AT88SA10HS
maintains the secret keys in hardware instead of embedding them into the host microprocessor code. This makes the
keys irretrievable for hackers attempting to circumvent the system. The addition of the AT88SA10HS is displayed in
Figure 14.
Figure 14.
Summary
The multipurpose functionality of the CryptoAuthentication devices makes them an exceptional tool for enabling
hardware security. Nearly any application that requires authentication or individual identification of nodes can use this
device as part of its security solution architecture. If your security requirements vary from those listed in this document
or you are not sure that the CryptoAuthentication devices fit your specific application, please contact your local
representative. Chances are we have a product that will fit your need.
CryptoAuthentication™ Product Uses
Battery Protection
Battery Protection with Host Device
8663B–SMEM–3/09
Atmel