AT49BV-LV002 ATMEL Corporation, AT49BV-LV002 Datasheet - Page 5

• Manufacturer Part Number: AT49BV-LV002
• Description: 2-Megabit (256K x 8) Single 2.7-volt Battery-Voltage Flash Memory
• Manufacturer: ATMEL Corporation

Command Definition (in Hex)
Notes:
Absolute Maximum Ratings
Command
Sequence
Read
Chip Erase
Sector Erase
Byte Program
Boot Block Lockout
Product ID Entry
Product ID Exit
Product ID Exit
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 OE
with Respect to Ground ...................................-0.6V to +13.5V
1. The DATA FORMAT in each bus cycle is as follows: I/O7 - I/O0 (Hex)
2. The 16K byte boot sector has the address range 00000H to 03FFFH for the AT49BV/LV002(N) and 3C000H to 3FFFFH for
3. Either one of the Product ID Exit commands can be used.
4. SA = sector addresses:
the AT49BV/LV002(N)T
For the AT49BV/LV002(N):
SA = 00000 to 03FFF for BOOT BLOCK
Nothing will happen and the device goes back to the read mode in 100 ns
SA = 04000 to 05FFF for PARAMETER BLOCK 1
SA = 06000 to 07FFF for PARAMETER BLOCK 2
SA = 08000 to 1FFFF for MAIN MEMORY ARRAY BLOCK 1
This command will erase - PB1, PB2 and MMB1
SA = 20000 to 3FFFF for MAIN MEMORY ARRAY BLOCK 2
For the AT49BV/LV002(N)T:
SA = 3C000 to 3FFFF for BOOT BLOCK
Nothing will happen and the device goes back to the read mode in 100 ns
SA = 3A000 to 3BFFF for PARAMETER BLOCK 1
SA = 38000 to 39FFF for PARAMETER BLOCK 2
SA = 20000 to 37FFF for MAIN MEMORY ARRAY BLOCK 1
This command will erase - PB1, PB2 and MMB1
SA = 00000 to IFFFF for MAIN MEMORY ARRAY BLOCK 2
(3)
(3)
(2)
Cycles
Bus
1
6
6
4
6
3
3
1
XXXX
Addr
5555
5555
5555
5555
5555
Addr
5555
1st Bus
Cycle
Data
D
AA
AA
AA
AA
AA
AA
F0
OUT
(1)
CC
2AAA
2AAA
2AAA
2AAA
2AAA
2AAA
Addr
2nd Bus
+ 0.6V
Cycle
Data
55
55
55
55
55
55
*NOTICE:
Addr
5555
5555
5555
5555
5555
5555
3rd Bus
Cycle
Data
A0
80
80
80
F0
Stresses beyond those listed under “Absolute Maxi-
mum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions beyond those indicated in the operational sec-
tions of this specification is not implied. Exposure to
absolute maximum rating conditions for extended
periods may affect device reliability.
90
Addr
5555
5555
5555
Addr
4th Bus
Cycle
Data
D
AA
AA
AA
IN
2AAA
2AAA
2AAA
Addr
5th Bus
Cycle
Data
55
55
55
Addr
5555
SA
5555
6th Bus
(4)
Cycle
Data
10
30
40
5