AT49BV-LV002 Datasheet, PDF (1/21 Pages) ATMEL Corporation – 2-Megabit (256K x 8) Single 2.7-volt Battery-Voltage™ Flash Memory

Features
• Single Supply for Read and Write: 2.7 to 3.6V (BV), 3.0 to 3.6V (LV)
• Fast Read Access Time - 70 ns
• Internal Program Control and Timer
• Sector Architecture
– One 16K Byte Boot Block with Programming Lockout
– Two 8K Byte Parameter Blocks
– Two Main Memory Blocks (96K, 128K Bytes)
• Fast Erase Cycle Time - 10 seconds
• Byte-By-Byte Programming - 30 µs/Byte Typical
• Hardware Data Protection
• DATA Polling For End Of Program Detection
• Low Power Dissipation
– 25 mA Active Current
– 50 µA CMOS Standby Current
• Typical 10,000 Write Cycles
Description
The AT49BV/LV002(N)(T) is a 3-volt-only in-system reprogrammable Flash Memory.
Its 2 megabits of memory is organized as 262,144 words by 8 bits. Manufactured with
Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 70
ns with power dissipation of just 90 mW over the commercial temperature range.
When the device is deselected, the CMOS standby current is less than 50 µA. For the
Pin Configurations
Pin Name
A0 - A17
CE
OE
WE
RESET
I/O0 - I/O7
DC
Function
Addresses
Chip Enable
Output Enable
Write Enable
RESET
Data Inputs/Outputs
Don’t Connect
PLCC Top View
DIP Top View
(continued)
*RESET 1
A16 2
A15 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
I/O0 13
I/O1 14
I/O2 15
GND 16
32 VCC
31 WE
30 A17
29 A14
28 A13
27 A8
26 A9
25 A11
24 OE
23 A10
22 CE
21 I/O7
20 I/O6
19 I/O5
18 I/O4
17 I/O3
VSOP Top View (8 x 14 mm) or
TSOP Top View (8 x 20 mm)
Type 1
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
I/O0 13
29 A14
28 A13
27 A8
26 A9
25 A11
24 OE
23 A10
22 CE
21 I/O7
A11 1
A9 2
A8 3
A13 4
A14 5
A17 6
WE 7
VCC 8
*RESET 9
A16 10
A15 11
A12 12
A7 13
A6 14
A5 15
A4 16
32 OE
31 A10
30 CE
29 I/O7
28 I/O6
27 I/O5
26 I/O4
25 I/O3
24 GND
23 I/O2
22 I/O1
21 I/O0
20 A0
19 A1
18 A2
17 A3
*Note: This pin is a DC on the AT49BV002N(T) and AT49LV002N(T).
2-Megabit
(256K x 8)
Single 2.7-volt
Battery-Voltage^™
Flash Memory
AT49BV002
AT49LV002
AT49BV002N
AT49LV002N
AT49BV002T
AT49LV002T
AT49BV002NT
AT49LV002NT
Rev. 0982C–07/98
1