Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

AT29LV020 Datasheet(PDF) 4 Page - ATMEL Corporation

Part # AT29LV020
Description  2-megabit (256K x 8) 3-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

AT29LV020 Datasheet(HTML) 4 Page - ATMEL Corporation

  AT29LV020_08 Datasheet HTML 1Page - ATMEL Corporation AT29LV020_08 Datasheet HTML 2Page - ATMEL Corporation AT29LV020_08 Datasheet HTML 3Page - ATMEL Corporation AT29LV020_08 Datasheet HTML 4Page - ATMEL Corporation AT29LV020_08 Datasheet HTML 5Page - ATMEL Corporation AT29LV020_08 Datasheet HTML 6Page - ATMEL Corporation AT29LV020_08 Datasheet HTML 7Page - ATMEL Corporation AT29LV020_08 Datasheet HTML 8Page - ATMEL Corporation AT29LV020_08 Datasheet HTML 9Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 16 page
background image
4
0565E–FLASH–9/08
AT29LV020
the first data byte has been loaded into the device, successive bytes are entered in the same
manner. Each new byte to be programmed must have its high to low transition on WE (or CE)
within 150 µs of the low to high transition of WE (or CE) of the preceding byte. If a high to low
transition is not detected within 150 µs of the last low to high transition, the load period will end
and the internal programming period will start. A8 to A17 specify the sector address. The sector
address must be valid during each high to low transition of WE (or CE). A0 to A7 specify the byte
address within the sector. The bytes may be loaded in any order; sequential loading is not
required. Once a programming operation has been initiated, and for the duration of t
WC, a read
operation will effectively be a polling operation.
4.3
Hardware Data Protection
Hardware features protect against inadvertent programs to the AT29LV020 in the following
ways: (a) V
CC sense – if VCC is below 1.8V (typical), the program function is inhibited; (b) VCC
power on delay – once V
CC has reached the VCC sense level, the device will automatically time
out 10 ms (typical) before programming; (c) Program inhibit – holding any one of OE low, CE
high or WE high inhibits program cycles; and (d) Noise filter – pulses of less than 15 ns (typical)
on the WE or CE inputs will not initiate a program cycle.
4.4
Input Levels
While operating with a 3.3V ± 10% power supply, the address inputs and control inputs (OE, CE
and WE) may be driven from 0 to 5.5V without adversely affecting the operation of the device.
The I/O lines can be driven from 0 to 3.6V.
4.5
Product Identification
The product identification mode identifies the device and manufacturer as Atmel. It may be
accessed by hardware or software operation. The hardware operation mode can be used by an
external programmer to identify the correct programming algorithm for the Atmel product.
In addition, users may wish to use the software product identification mode to identify the part
(i.e., using the device code), and have the system software use the appropriate sector size for
program operations. In this manner, the user can have a common board design for 256K to
4-megabit densities and, with each density’s sector size in a memory map, have the system soft-
ware apply the appropriate sector size.
For details, see Operating Modes (for hardware operation) or Software Product Identification.
The manufacturer and device code is the same for both modes.
4.6
DATA Polling
The AT29LV020 features DATA polling to indicate the end of a program cycle. During a program
cycle an attempted read of the last byte loaded will result in the complement of the loaded data
on I/O7. Once the program cycle has been completed, true data is valid on all outputs and the
next cycle may begin. DATA polling may begin at any time during the program cycle.
4.7
Toggle Bit
In addition to DATA polling the AT29LV020 provides another method for determining the end of
a program or erase cycle. During a program or erase operation, successive attempts to read
data from the device will result in I/O6 toggling between one and zero. Once the program cycle
has completed, I/O6 will stop toggling and valid data will be read. Examining the toggle bit may
begin at any time during a program cycle.


Similar Part No. - AT29LV020_08

ManufacturerPart #DatasheetDescription
logo
ATMEL Corporation
AT29LV020-20 ATMEL-AT29LV020-20 Datasheet
486Kb / 10P
   2 Megabit 256K x 8 3-volt Only CMOS Flash Memory
AT29LV020-20JC ATMEL-AT29LV020-20JC Datasheet
486Kb / 10P
   2 Megabit 256K x 8 3-volt Only CMOS Flash Memory
AT29LV020-20JI ATMEL-AT29LV020-20JI Datasheet
486Kb / 10P
   2 Megabit 256K x 8 3-volt Only CMOS Flash Memory
AT29LV020-20TC ATMEL-AT29LV020-20TC Datasheet
486Kb / 10P
   2 Megabit 256K x 8 3-volt Only CMOS Flash Memory
AT29LV020-20TI ATMEL-AT29LV020-20TI Datasheet
486Kb / 10P
   2 Megabit 256K x 8 3-volt Only CMOS Flash Memory
More results

Similar Description - AT29LV020_08

ManufacturerPart #DatasheetDescription
logo
ATMEL Corporation
AT29LV020 ATMEL-AT29LV020 Datasheet
486Kb / 10P
   2 Megabit 256K x 8 3-volt Only CMOS Flash Memory
AT29C020 ATMEL-AT29C020 Datasheet
426Kb / 17P
   2-megabit (256K x 8) 5-volt Only Flash Memory
logo
Hynix Semiconductor
HY29F002T HYNIX-HY29F002T Datasheet
381Kb / 38P
   2 Megabit (256K x 8), 5 Volt-only, Flash Memory
logo
ATMEL Corporation
AT49F002 ATMEL-AT49F002 Datasheet
182Kb / 16P
   2-Megabit 256K x 8 5-volt Only Flash Memory
AT49F002 ATMEL-AT49F002 Datasheet
213Kb / 20P
   2-megabit (256K x 8) 5-volt Only Flash Memory
AT29C020 ATMEL-AT29C020 Datasheet
257Kb / 11P
   2-Megabit 256K x 8 5-volt Only CMOS Flash Memory
AT49F020 ATMEL-AT49F020 Datasheet
84Kb / 10P
   2-Megabit 256K x 8 5-volt Only CMOS Flash Memory
logo
PMC-Sierra, Inc
PM29F002 PMC-PM29F002 Datasheet
148Kb / 21P
   2 Megabit (256K X 8) 5.0 Volt-only CMOS Flash Memory
logo
ATMEL Corporation
AT49F002T ATMEL-AT49F002T Datasheet
119Kb / 12P
   2-Megabit 256K x 8 5-volt Only CMOS Flash Memory
AT49BV008 ATMEL-AT49BV008 Datasheet
117Kb / 12P
   8-Megabit 1M x 8 3-volt Only Flash Memory
More results


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
ALLDATASHEET.COM
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
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com