전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

AT52SC1283J 데이터시트(PDF) 8 Page - ATMEL Corporation

부품명 AT52SC1283J
상세설명  128-Mbit Flash 32-Mbit/64-Mbit
PDF  52 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT52SC1283J 데이터시트(HTML) 8 Page - ATMEL Corporation

Back Button AT52SC1283J Datasheet HTML 4Page - ATMEL Corporation AT52SC1283J Datasheet HTML 5Page - ATMEL Corporation AT52SC1283J Datasheet HTML 6Page - ATMEL Corporation AT52SC1283J Datasheet HTML 7Page - ATMEL Corporation AT52SC1283J Datasheet HTML 8Page - ATMEL Corporation AT52SC1283J Datasheet HTML 9Page - ATMEL Corporation AT52SC1283J Datasheet HTML 10Page - ATMEL Corporation AT52SC1283J Datasheet HTML 11Page - ATMEL Corporation AT52SC1283J Datasheet HTML 12Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 52 page
background image
8
3530B–STKD–2/4/05
AT52SC1283J/1284J [Preliminary]
6.12.1
Softlock and Unlock
The Softlock protection mode can be disabled by issuing a two-bus cycle Unlock command to
the selected sector. Once a sector is unlocked, its contents can be erased or programmed. To
enable the Softlock protection mode, a two-bus cycle Softlock command must be issued to the
selected sector.
6.12.2
Hardlock and Write Protect (WP)
The Hardlock sector protection mode operates in conjunction with the Write Protection (WP) pin.
The Hardlock sector protection mode can be enabled by issuing a two-bus cycle Hardlock soft-
ware command to the selected sector. The state of the Write Protect pin affects whether the
Hardlock protection mode can be overridden.
• When the WP pin is low and the Hardlock protection mode is enabled, the sector cannot be
unlocked and the contents of the sector is read-only.
• When the WP pin is high, the Hardlock protection mode is overridden and the sector can be
unlocked via the Unlock command.
To disable the Hardlock sector protection mode, the chip must be either reset or power cycled.
Table 6-1.
Hardlock and Softlock Protection Configurations in Conjunction with WP
VPP
WP
Hard-
lock
Soft-
lock
Erase/
Prog
Allowed?
Comments
V
CC
0
0
0
Yes
No sector is locked
VCC
00
1
No
Sector is Softlocked. The
Unlock command can unlock
the sector.
VCC
01
1
No
Hardlock protection mode is
enabled. The sector cannot be
unlocked.
V
CC
1
0
0
Yes
No sector is locked.
V
CC
10
1
No
Sector is Softlocked. The
Unlock command can unlock
the sector.
V
CC
11
0
Yes
Hardlock protection mode is
overridden and the sector is
not locked.
V
CC
11
1
No
Hardlock protection mode is
overridden and the sector can
be unlocked via the Unlock
command.
V
IL
xx
x
No
Erase and Program Operations
cannot be performed.



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


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
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