at49bv802a ATMEL Corporation, at49bv802a Datasheet - Page 11

• Manufacturer Part Number: at49bv802a
• Description: 8-megabit 512k X 16/ 1m X 8 3-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

Figure 4-3.
Note:
3405E–FLASH–2/07
NO
1. The system should recheck the toggle bit even if
I/O5 = “1” because the toggle bit may stop toggling
as I/O5 changes to “1”.
Successful, Write
Read I/O7 - I/O0
Read I/O7 - I/O0
Read I/O7 - I/O0
Program/Erase
Exit Command
Operation Not
Toggle Bit Algorithm
(Configuration Register = 00)
Toggle Bit =
Toggle Bit =
Product ID
I/O5 = 1?
Toggle?
Toggle?
START
Twice
YES
YES
YES
NO
NO
Program/Erase
Read Mode
Successful,
Operation
Device in
Figure 4-4.
Note:
NO
1. The system should recheck the toggle bit even if
I/O5 = “1” because the toggle bit may stop toggling
as I/O5 changes to “1”.
Successful, Write
Read I/O7 - I/O0
Read I/O7 - I/O0
Read I/O7 - I/O0
Program/Erase
Exit Command
Operation Not
Toggle Bit Algorithm
(Configuration Register = 01)
Toggle Bit =
Toggle Bit =
Product ID
I/O5 = 1?
Toggle?
Toggle?
START
Twice
YES
YES
YES
AT49BV802A(T)
NO
NO
Write Product ID
Program/Erase
Exit Command
Successful,
Operation
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