Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

AT45DB021E Datasheet(PDF) 53 Page - Renesas Technology Corp

Part # AT45DB021E
Description  2-Mbit DataFlash (with Extra 64 kbits) 1.65 V Minimum SPI Serial Flash Memory
PDF  69 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

AT45DB021E Datasheet(HTML) 53 Page - Renesas Technology Corp

Back Button AT45DB021E Datasheet HTML 49Page - Renesas Technology Corp AT45DB021E Datasheet HTML 50Page - Renesas Technology Corp AT45DB021E Datasheet HTML 51Page - Renesas Technology Corp AT45DB021E Datasheet HTML 52Page - Renesas Technology Corp AT45DB021E Datasheet HTML 53Page - Renesas Technology Corp AT45DB021E Datasheet HTML 54Page - Renesas Technology Corp AT45DB021E Datasheet HTML 55Page - Renesas Technology Corp AT45DB021E Datasheet HTML 56Page - Renesas Technology Corp AT45DB021E Datasheet HTML 57Page - Renesas Technology Corp Next Button
Zoom Inzoom in Zoom Outzoom out
 53 / 69 page
background image
DS-AT45DB021E-8789 Rev. N
Page 53
3/24/26
© 2012-2026 Renesas Electronics
AT45DB021E Datasheet
25. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
Figure 31. Block Diagram
Figure 32. Buffer Write
Figure 33. Buffer to Main Memory Page Program
Flash Memory Array
I/O Interface
SI
Buffer To
Main Memory
Page Program
Buffer
Write
Page (256/264 bytes)
Buffer (256/264 bytes)
CS
SI (Input)
CMD
X
X···X, BFA8
BFA7-0
n
n + 1
Last Byte
Completes Writing into Selected Buffer
Binary Page Size
16 Dummy Bits + BFA7-BFA0
CS
SI (Input)
CMD
PA9-7
PA6-0, X
XXXX XXX
Starts Self-timed Erase/Program Operation
Binary Page Size
A17-A8 + 8 Dummy Bits
n
= 1st byte read
n+1 = 2nd byte read
Each transition represents eight bits



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   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