at49bv320a ATMEL Corporation, at49bv320a Datasheet - Page 13

• Manufacturer Part Number: at49bv320a
• Description: 32-megabit 2m X 16/4m X 8 3-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

Command Definition in Hex
Notes:
Absolute Maximum Ratings*
3308D–FLASH–5/03
Command
Sequence
Read
Chip Erase
Sector Erase
Byte/Word Program
Dual Byte/Word
Program
Enter Single Pulse
Program Mode
Single Pulse
Byte/Word Program
Sector Lockdown
Erase/Program
Suspend
Erase/Program
Resume
Product ID Entry
Product ID Exit
Product ID Exit
Program Protection
Register
Lock Protection
Register - Block B
Status of Block B
Protection
Set Configuration
Register
CFI Query
Temperature under Bias ................................ -55°C to +125°C
Storage Temperature ..................................... -65°C to +150°C
All Input Voltages
(including NC Pins)
with Respect to Ground ...................................-0.6V to +6.25V
All Output Voltages
with Respect to Ground .............................-0.6V to V
Voltage on V
with Respect to Ground ...................................-0.6V to +13.0V
(9)
1. The DATA FORMAT shown for each bus cycle is as follows; I/O7 - I/O0 (Hex). In word operation I/O15 - I/O8
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 - 18 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. If data bit D1 is “0”, block B is locked. If data bit D1 is “1”, block B can be reprogrammed.
7. The default state (after power-up) of the configuration register is “00”.
8. Bytes of data other than F0 may be used to exit the Product ID mode. However, it is recommended that F0 be used.
9. This fast programming option enables the user to program two words in parallel only when V
are don’t care. The ADDRESS FORMAT shown for each bus cycle is as follows: A11 - A0 (Hex). Address A20 through A11 are don’t care in
the word mode. Address A20 through A11 and A-1 are don’t care in the byte mode.
the two words, D
(5)
(5)
PP
Cycles
Bus
1
1
6
6
4
5
6
1
6
1
1
3
3
1
4
4
4
4
IN1
and D
Addr
X55
Addr
Addr
XXX
XXX
XXX
555
555
555
555
555
555
555
555
555
555
555
555
1st Bus
IN2
Cycle
, must only differ in address A0. This command should be used during manufacturing purposes only.
Data
D
F0
98
AA
AA
AA
AA
AA
D
AA
AA
AA
AA
AA
AA
AA
B0
30
OUT
IN
(8)
(1)
Addr
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
2nd Bus
(2)
(2)
Cycle
CC
+ 0.6V
Data
55
55
55
55
55
55
55
55
55
55
55
55
Addr
555
555
555
555
555
555
555
555
555
555
555
555
3rd Bus
Cycle
*NOTICE:
Data
F0
A0
E0
C0
C0
D0
80
80
80
80
90
90
(8)
Addr
Addr1
Addr
Addr
XXX
555
555
555
555
080
80
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
4th Bus
Cycle
00/01
D
Data
D
OUT
D
D
AA
AA
AA
AA
X0
PP
IN1
IN
IN
(6)
(7)
= 12V. The Addresses, Addr1 and Addr2, of
AT49BV32XA(T)
Addr
Addr2
AAA
AAA
AAA
AAA
5th Bus
Cycle
Data
D
55
55
55
55
IN2
SA
SA
Addr
555
555
(3)(4)
(3)(4)
6th Bus
Cycle
Data
10
30
A0
60
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