AT88SA100S-TSU-T Atmel, AT88SA100S-TSU-T Datasheet - Page 9

• 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

4.1.
4.1.1. Command Timing
8558E–SMEM–8/10
IO Flags
The host system is always the bus master, so before any IO transaction, the system must first send an 8-bit flag
to the chip to indicate the IO operation that is to be performed, as follows:
All other values are reserved and will be ignored.
After a command flag is transmitted, a command block should be sent to the chip. During parsing of the
parameters and subsequent execution of a properly received command, the chip will be busy and not respond to
transitions on the signal pin. The delays for these operations are listed in the table below:
Table 4-2.
In this document, t
the chip.
Value
0x77
0x88
0xCC
Parameter
ParsingDelay
MemoryDelay
FuseDelay
MacDelay
PersonalizeDelay
Name
Command
Transmit
Sleep
Command Timing
EXEC
Symbol
t
t
t
t
t
PARSE
EXEC_MEM
EXEC_FUSE
EXEC_MAC
PERSON
is used as shorthand for the delay corresponding to whatever command has been sent to
Meaning
After this flag, the system starts sending a command block to the chip. The first bit of the block can
follow immediately after the last bit of the flag.
After a turn-around delay, the chip will start transmitting the response for a previously transmitted
command block.
Upon receipt of a sleep flag, the chip will enter a low power mode until the next Wake token is
received.
Max
100
700
30
13
3
Unit
ms
ms
ms
µs
µs
Notes
Delay to check CRC and parse opcode and parameters before an error
indication will be available
Delay to execute Read, Write and/or SramLock commands
Delay to execute BurnFuse command at V
See Section 5.3 for more details
Delay to execute MAC command
Delay to execute GenPersonalizationKey or LoadSram
Atmel AT88SA100S
cc
> 4.5V
9