AT88SA10HS-TSU-T Atmel, AT88SA10HS-TSU-T Datasheet - Page 10

• 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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Physical Access Control
There are many products on the market that can be used for controlling access to buildings or campuses. Controlling
physical access to authorized persons only can present many challenges when various persons or groups need to
access specific resources while others need global or unit access. The AT88SA102S CryptoAuthentication device
provides a great low cost solution that only uses a single communication wire to implement. The CryptoAuthentication
devices can be personalized so that no two devices will ever be the same anywhere in the world. For an added level of
security the AT88SA10HS device which shares the same single communication wire can be optionally used in the host
to secure the host side keys. This configuration is displayed in Figure 9.
Figure 9.
The AT88SA102S can be used to create an elaborate facility access control scheme. Unlike tumbler locks,
CryptoAuthentication can be used to provide unlimited key combinations. The CryptoAuthentication device provides 62
bits of fuses that are one time programmable by the customer. The customer will use these fuse bits to customize
access devices to their facility. This ensures that each customer will never have an overlap with other suppliers. The
authentication process also uses that unique serial number in each chip to verify that no two users will be exactly the
same. Additionally the CryptoAuthentication provides 23 sequential blow fuses that can be used to determine access
configurations, monitor usage, or control use cycles. With the nearly infinite availability of keying configurations each
user will have a unique configuration which could be used to track or monitor access on a personalized or a resource
level for a campus.
CryptoAuthentication™ Product Uses
Building Security
8663B–SMEM–3/09