AT49BV512 Datasheet, PDF (1/11 Pages) ATMEL Corporation – 512K 64K x 8 Single 2.7-volt Battery-Voltage Flash Memory

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
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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 1
NC 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 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 1
A9 2
A8 3
A13 4
A14 5
NC 6
WE 7
VCC 8
NC 9
NC 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
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
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