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AT49BV512-12VI fiches techniques PDF

ATMEL Corporation - 512K 64K x 8 Single 2.7-volt Battery-Voltage Flash Memory

Numéro de référence AT49BV512-12VI
Description 512K 64K x 8 Single 2.7-volt Battery-Voltage Flash Memory
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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AT49BV512-12VI fiche technique
Features
Single Supply Voltage, Range 2.7V to 3.6V
Single Supply for Read and Write
Fast Read Access Time - 120 ns
Internal Program Control and Timer
8K bytes Boot Block With Lockout
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 AT49BV512 is a 3-volt-only, 512K Flash memories organized as 65,536 words of
8 bits each. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the
devices offer access times to 120 ns with power dissipation of just 90 mW over the
commercial temperature range. When the devices are deselected, the CMOS standby
current is less than 50 µA.
To allow for simple in-system reprogrammability, the AT49BV512 does not require
high input voltages for programming. Three-volt-only commands determine the read
and programming operation of the device. Reading data out of the device is similar to
reading from an EPROM. Reprogramming the AT49BV512 is performed by erasing
the entire 1 megabit of memory and then programming on a byte by byte basis. The
(continued)
Pin Configurations
DIP Top View
Pin Name Function
A0 - A15
Addresses
CE Chip Enable
OE Output Enable
WE Write Enable
I/O0 - I/O7 Data Inputs/Outputs
NC No Connect
VSOP Top View (8 x 14 mm) or
TSOP Top View (8 x 20 mm)
Type 1
NC
NC
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32 VCC
31 WE
30 NC
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
A11
A9
A8
A13
A14
NC
WE
VCC
NC
NC
A15
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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
PLCC Top View
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
512K (64K x 8)
Single 2.7-volt
Battery-Voltage
Flash Memory
AT49BV512
Rev. 1026C–09/98
1

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