AT88SA100S-TSU-T Atmel, AT88SA100S-TSU-T Datasheet - Page 3

• Manufacturer Part Number: AT88SA100S-TSU-T
• Description: IC BATTERY AUTHENTICATION SOT23-
• Manufacturer: Atmel
• Series: CryptoAuthentication™r
• Type: Battery Authentication Chipr

Specifications of AT88SA100S-TSU-T

• Function: Battery Authentication
• Voltage - Supply: 2.7 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TO-236-3, SC-59, 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
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 3
• Mounting: Surface Mount
• Case Length: 2.9mm
• Screening Level: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.3.
8558E–SMEM–8/10
Fuse Lock Bits
Status Fuses
Chip Identification
The chip includes a total of 72-bits of information that can be used to distinguish between individual chips in a
reliable manner. The information is distributed between the ROM and fuse blocks in the following manner.
Serial Number
Manufacturing ID This 24-bit value is composed of ROM MfrID (16-bits) and Fuse MfrID (8-bits). Typically this
These eight fuses can be used to prevent further writing of the status fuses. Bit zero, when
burned, locks Fuse[0-15] from being modified, Bit[1] locks Fuse[16-31] and so on up through
bit five, which locks Fuse[80-87]. Fuse[88-127] can never be modified with the BurnFuse
command.
Note:
These fuses can be used to store various information which are not secret. Their value can
always be determined using the Read command. They can be individually burned using the
BurnFuse command. Two common usage models for these fuses are:
1. Consumption logging, i.e. burn one bit after every n uses, the host system keeps track of
2. Model number information. In this situation, the bits are written at the factory and their
This 48-bit value is composed of ROM SN (16-bits) and Fuse SN (32-bits). Together they
form a serial number that is guaranteed to be unique for all devices ever manufactured within
the Atmel
calculation.
value is the same for all chips of a given type. It is always included in the cryptographic
computations.
the number of uses so far for this serial number since the last fuse burn.
value is locked to prevent modifications in the field. This method can also be used for
feature enabling.
Burning bit zero has the effect of preventing any changes to the current value of the lock bits
®
CryptoAuthentication family. This value is optionally included in the MAC
Atmel AT88SA100S
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