at49bv802a ATMEL Corporation, at49bv802a Datasheet - Page 10

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

Figure 4-1.
Notes:
10
NO
1. VA = Valid address for programming. During a sector
2. I/O7 should be rechecked even if I/O5 = “1” because
AT49BV802A(T)
erase operation, a valid address is any sector
address within the sector being erased. During chip
erase, a valid address is any non-protected sector
address.
I/O7 may change simultaneously with I/O5.
Successful, Write
Read I/O7 - I/O0
Read I/O7 - I/O0
Program/Erase
Operation Not
Exit Command
I/O7 = Data?
Data Polling Algorithm
(Configuration Register = 00)
Product ID
I/O7 = Data?
Addr = VA
Addr = VA
I/O5 = 1?
START
NO
YES
NO
YES
YES
Program/Erase
Read Mode
Successful,
Operation
Device in
Figure 4-2.
Note:
NO
1. VA = Valid address for programming. During a sector
erase operation, a valid address is any sector
address within the sector being erased. During chip
erase, a valid address is any non-protected sector
address.
Successful, Write
Read I/O7 - I/O0
Read I/O7 - I/O0
Read I/O7 - I/O0
Program/Erase
Operation Not
Exit Command
Toggle Bit =
Toggle Bit =
Data Polling Algorithm
(Configuration Register = 01)
Product ID
I/O5 = 1?
Toggle?
Toggle?
START
Twice
YES
YES
YES
NO
NO
ID Exit Command
Program/Erase
Write Product
Successful,
Operation
3405E–FLASH–2/07