AT88SC153-10SI-00 Atmel, AT88SC153-10SI-00 Datasheet - Page 11

• Manufacturer Part Number: AT88SC153-10SI-00
• Manufacturer: Atmel

Specifications of AT88SC153-10SI-00

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: SOIC
• Mounting: Surface Mount
• Pin Count: 8
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

Read Fuses
Write Fuses
1016D–SMEM–04/04
The data byte address lower three bits are internally incremented following the receipt of
each data byte. The higher data byte address bits are not incremented, retaining the 8-
byte write page address. Each data byte within a page must only be loaded once. Once
a stop condition is issued to indicate the end of the host’s write operation, the device ini-
tiates the internal nonvolatile write cycle. An ACK polling sequence can be initiated
immediately. After a write command, if the host is not allowed to write at some address
locations, a nonvolatile write cycle will still be initiated, but the device will only modify
data at the allowed addresses. When write lock mode is enabled (WLM = “0”), the write
cycle is initiated automatically after the first data byte has been transmitted.
Figure 6. Read Fuses
Note:
The Read Fuses operation is always allowed. The AT88SC153 will continuously trans-
mit the fuse byte if the host continues to transmit an ACK. The command is terminated
when the host transmits a NACK and STOP bit.
Figure 7. Write Fuses
Note:
The Write Fuses operation is only allowed under secure code control; no data byte is
transmitted by the host. The fuses are blown sequentially: CMA is blown if FAB is equal
to “0”, and PER is blown if CMA is equal to “0”. If the fuses are all “0”s, the operation is
canceled and the device waits for a new command.
Once a stop condition is issued to indicate the end of the host’s write operation, the
device initiates the internal nonvolatile write cycle. An ACK polling sequence can be ini-
tiated immediately.
F
F
nnn = 001 : Blow FAB
nnn = 010 : Blow CMA
nnn = 100 : Blow PER
x
x
= 1: fuse is not blown
= 0: fuse is blown
R
S
T
A
T
0
O
S
P
T
AT88SC153
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