at49bv642dt ATMEL Corporation, at49bv642dt Datasheet - Page 8

• Manufacturer Part Number: at49bv642dt
• Description: 64-megabit 4m X 16 3-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

Figure 3-1.
Notes:
8
NO
1. VA = Valid address for programming. During a sector
2. I/O7 should be rechecked even if I/O5 = “1” because
AT49BV642D(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
I/O3, I/O5 = 1?
Operation Not
Exit Command
Data Polling Algorithm
(Configuration Register = 00)
I/O7 = Data?
Product ID
I/O7 = Data?
Addr = VA
Addr = VA
START
NO
YES
NO
YES
YES
Program/Erase
Successful,
Read Mode
Operation
Device in
Figure 3-2.
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
Program/Erase
I/O3, I/O5 = 1?
Operation Not
Exit Command
Data Polling Algorithm
(Configuration Register = 01)
Product ID
Addr = VA
I/O7 = 1?
START
YES
YES
Write Product ID
Program/Erase
Exit Command
NO
Successful,
Operation
3631A–FLASH–04/06