AT88SA102S-TH-T Atmel, AT88SA102S-TH-T Datasheet - Page 18

• Manufacturer Part Number: AT88SA102S-TH-T
• Manufacturer: Atmel

Specifications of AT88SA102S-TH-T

• Lead Free Status / RoHS Status: Supplier Unconfirmed

5.3.
18
BurnFuse
Burns a single one of the 24 status fuse bits (Fuse[64] – Fuse[87]). No other fuses can be burned with this command –
use BurnSecure at personalization time to burn any of the first 88 fuses.
If the BurnFuse Enable bit (Fuse 1) has been burned to a 0, then attempts to run this command will return an error.
The power supply pin must meet the V
reliably. If Vcc is greater than 4.5V, then the BurnTime parameter should be set to 0x00 and the internal burn time will
be up to 250µs. If Vcc is less than 4.5V but greater than V
and the internal burn time will be up to 190ms. The chip does NOT internally check the supply voltage level.
There is a very small interval during t
not be removed during this interval and the watchdog timer must not be allowed to expire during this interval, or the
fuse may end up in a state where it reads as un-burned but cannot be burned.
Table 13.
Table 14.
AT88SA102S
Opcode
Param1
Param2
Data
Success
Name
Input Parameters
Output Parameters
BURNFUSE
FuseNum
BurnTime
Ignored
Size
1
Name
Upon successful execution, a value of 0 will be returned by the AT88SA102S.
Size
EXEC_BURN
1
1
2
0
BURN
0x04
Which bit within fuse array, minimum value is 64, and maximum value is 86.
Must be 0x00 00 if Vcc > 4.5V, must be 0x80 00 otherwise.
specification during the entire BurnFuse command in order to burn fuses
when the fuse element is actually being burned. The power supply must
BURN
then the BurnTime parameter should be set to 0x8000
Notes
Notes
8584D–SMEM–5/10