參數(shù)資料
型號(hào)： AT49LV1024A-45VC
廠商： ATMEL CORP
元件分類： DRAM
英文描述： 1-megabit (64K x 16) 3-volt Only Flash Memory
中文描述： 64K X 16 FLASH 3V PROM, 45 ns, PDSO40
封裝： 10 X 14 MM, PLASTIC, MO-142CA, VSOP-40
文件頁(yè)數(shù)： 1/14頁(yè)
文件大小： 308K
代理商： AT49LV1024A-45VC
1
Features
Single-voltage Operation Read/Write Operation: 2.7V to 3.6V (BV). 3.0V to 3.6V(LV)
Fast Read Access Time – 45 ns
Internal Program Control and Timer
8K Word Boot Block with Lockout
Fast Erase Cycle Time – 1.5 Seconds
Word-by-word Programming – 20 μs/Word Typical
Hardware Data Protection
Data Polling for End of Program Detection
Small 10 x 14 mm VSOP Package
Typical 10,000 Write Cycles
Description
The AT49BV/LV1024A is a 3-volt only in-system Flash memory. The 1-megabit of
memory is organized as 65,536 words by 16 bits. Manufactured with Atmel’s
advanced nonvolatile CMOS technology, the devices offer access times to 45 ns with
power dissipation of just 72 mW over the industrial temperature range.
To allow for simple in-system reprogrammability, the AT49BV/LV1024A 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 simi-
lar to reading from an EPROM. Reprogramming the AT49BV/LV1024A is performed
by erasing a block of data (entire chip or main memory block) and then programming
on a word by word basis. The typical word programming time is a fast 20 μs. The end
of a program cycle can be optionally detected by the Data Polling feature. Once the
end of a word program cycle has been detected, a new access for a read or program
can begin. The typical number of program and erase cycles is in excess of 10,000
cycles.
The optional 8K word boot block section includes a reprogramming write lock out fea-
ture to provide data integrity. The boot sector is designed to contain user secure code,
and when the feature is enabled, the boot sector is permanently protected from being
erased or reprogrammed.
1-megabit
(64K x 16)
3-volt Only
Flash Memory
AT49BV1024A
AT49LV1024A
Pin Configurations
Pin Name
Function
A0 - A15
Addresses
CE
Chip Enable
OE
Output Enable
WE
Write Enable
I/O0 - I/O15
Data Inputs/Outputs
NC
No Connect
AT49BV/LV1024A VSOP Top View
Type 1
10 x 14 mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
A9
A10
A11
A12
A13
A14
A15
NC
WE
VCC
NC
CE
I/O15
I/O14
I/O13
I/O12
I/O11
I/O10
I/O9
I/O8
GND
A8
A7
A6
A5
A4
A3
A2
A1
A0
OE
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
GND
Rev. 3332B–FLASH–12/03
相關(guān)PDF資料
PDF描述
AT49LV1024A-45VL 1-megabit (64K x 16) 3-volt Only Flash Memory
AT49BV1604T-90TC 16-Megabit 1M x 16/2M x 8 3-volt Only Flash Memory
AT49BV1604T-90TI 16-Megabit 1M x 16/2M x 8 3-volt Only Flash Memory
AT49BV1604T-90UC 16-Megabit 1M x 16/2M x 8 3-volt Only Flash Memory
AT49BV1604T-90UI 16-Megabit 1M x 16/2M x 8 3-volt Only Flash Memory
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