13
3626A–FLASH–2/07
AT49BV802D(T)
Notes: 1. The DATA FORMAT shown for each bus cycle is as follows; I/O7 - I/O0 (Hex). In word operation I/O15 - I/O8
are don’t care. The ADDRESS FORMAT shown for each bus cycle is as follows: A11 - A0 (Hex). Address A18 through A11
are don’t care in the word mode. Address A18 through A11 and A-1 are don’t care in the byte mode.
2. Since A11 is a Don’t Care, AAA can be replaced with 2AA.
3. SA = sector address. Any byte/word address within a sector can be used to designate the sector address (see pages 15 - 16
for details).
4. Once a sector is in the lockdown mode, data in the protected sector cannot be changed unless the chip is reset or power
cycled.
5. Either one of the Product ID Exit commands can be used.
6. Bytes of data other than F0 may be used to exit the Product ID mode. However, it is recommended that F0 be used.
7. Any address within the user programmable register region. Address locations are shown on “Protection Register Addressing
Table” on page 14.
8. If data bit D1 is “0”, block B is locked. If data bit D1 is “1”, block B can be reprogrammed.
9. The default state (after power-up) of the configuration register is “00”.
10. When accessing the data in the CFI table, the address format is A15 - A0 (Hex) in the word mode, A14 - A0 (Hex),
and A-1 = 0 in the byte mode.
6. Command Definition Table
Command
Sequence
Bus
Cycles
1st Bus
Cycle
2nd Bus
Cycle
3rd Bus
Cycle
4th Bus
Cycle
5th Bus
Cycle
6th Bus
Cycle
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data
Read 1 Addr D
OUT
Chip Erase 6 555 AA AAA
(2)
55 555 80 555 AA AAA 55 555 10
Sector Erase 6 555 AA AAA 55 555 80 555 AA AAA 55 SA
(3)(4)
30
Byte/Word Program 4 555 AA AAA 55 555 A0 Addr D
IN
Enter Single Pulse
Program Mode
6 555 AA AAA 55 555 80 555 AA AAA 55 555 A0
Single Pulse
Byte/Word Program
1 Addr D
IN
Sector Lockdown 6 555 AA AAA
(2)
55 555 80 555 AA AAA 55 SA
(3)(4)
60
Erase/Program
Suspend
1 XXX B0
Erase/Program
Resume
1 XXX 30
Product ID Entry 3 555 AA AAA 55 555 90
Product ID Exit
(5)
3 555 AA AAA 55 555 F0
(6)
Product ID Exit
(5)
1 XXX F0
(6)
Program Protection
Register
4 555 AA AAA 55 555 C0 Addr
(7)
D
IN
Lock Protection
Register – Block B
4 555 AA AAA 55 555 C0 080 X0
Status of Block B
Protection
4 555 AA AAA 55 555 90 80 D
OUT
(8)
Set Configuration
Register
4 555 AA AAA 55 555 D0 XXX 00/01
(9)
CFI Query
(10)
1 X55 98
