Electronic Components Datasheet Search
  English  ▼

Delete All


Preview PDF Download HTML

AT49F002 Datasheet(PDF) 1 Page - ATMEL Corporation

Part No. AT49F002
Description  2-Megabit 256K x 8 5-volt Only Flash Memory
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT49F002 Datasheet(HTML) 1 Page - ATMEL Corporation

  AT49F002 Datasheet HTML 1Page - ATMEL Corporation AT49F002 Datasheet HTML 2Page - ATMEL Corporation AT49F002 Datasheet HTML 3Page - ATMEL Corporation AT49F002 Datasheet HTML 4Page - ATMEL Corporation AT49F002 Datasheet HTML 5Page - ATMEL Corporation AT49F002 Datasheet HTML 6Page - ATMEL Corporation AT49F002 Datasheet HTML 7Page - ATMEL Corporation AT49F002 Datasheet HTML 8Page - ATMEL Corporation AT49F002 Datasheet HTML 9Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 16 page
background image
Single-voltage Operation
– 5V Read
– 5V Reprogramming
Fast Read Access Time – 55 ns
Internal Program Control and Timer
Sector Architecture
– One 16K Bytes Boot Block with Programming Lockout
– Two 8K Bytes Parameter Blocks
– Four Main Memory Blocks (One 32K Bytes, Three 64K Bytes)
Fast Erase Cycle Time – 4 Seconds
Byte-by-Byte Programming – 20 µs/Byte Typical
Hardware Data Protection
DATA Polling for End of Program Detection
Low Power Dissipation
– 25 mA Active Current
– 100 µA CMOS Standby Current
Typical 10,000 Write Cycles
Green (Pb/Halide-free) Packaging Option
The AT49F002A(N)(T) is a 5-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
55 ns with power dissipation of just 137 mW over the industrial temperature range.
When the device is deselected, the CMOS standby current is less than 100 µA. For
the AT49F002AN(T) pin 1 for the PLCC package and pin 9 for the TSOP package are
no connect pins.
To allow for simple in-system reprogrammability, the AT49F002A(N)(T) does not
require high input voltages for programming. Five-volt-only commands determine the
read and programming operation of the device. Reading data out of the device is sim-
ilar to reading from an EPROM; it has standard CE, OE, and WE inputs to avoid bus
contention. Reprogramming the AT49F002A(N)(T) is performed by erasing a block of
data and then programming on a byte-by-byte basis. The byte 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 byte 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 device is erased by executing the erase command sequence; the device inter-
nally controls the erase operations. There are two 8K byte parameter block sections,
four main memory blocks, and one boot block.
The device has the capability to protect the data in the boot block; this feature is
enabled by a command sequence. The 16K-byte boot block section includes a repro-
gramming lock out feature to provide data integrity. The boot sector is designed to
contain user secure code, and when the feature is enabled, the boot sector is pro-
tected from being reprogrammed.
(256K x 8)
5-volt Only
Flash Memory

Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16 

Datasheet Download

Go To PDF Page

Link URL

Privacy Policy
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com

Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn