전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

SST28VF040A-90-4I-PH 데이터시트(PDF) 2 Page - Silicon Storage Technology, Inc

부품명 SST28VF040A-90-4I-PH
상세설명  4 Mbit (512K x8) SuperFlash EEPROM
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  SST [Silicon Storage Technology, Inc]
홈페이지  http://www.sst.com/
Logo SST - Silicon Storage Technology, Inc

SST28VF040A-90-4I-PH 데이터시트(HTML) 2 Page - Silicon Storage Technology, Inc

  SST28VF040A-90-4I-PH Datasheet HTML 1Page - Silicon Storage Technology, Inc SST28VF040A-90-4I-PH Datasheet HTML 2Page - Silicon Storage Technology, Inc SST28VF040A-90-4I-PH Datasheet HTML 3Page - Silicon Storage Technology, Inc SST28VF040A-90-4I-PH Datasheet HTML 4Page - Silicon Storage Technology, Inc SST28VF040A-90-4I-PH Datasheet HTML 5Page - Silicon Storage Technology, Inc SST28VF040A-90-4I-PH Datasheet HTML 6Page - Silicon Storage Technology, Inc SST28VF040A-90-4I-PH Datasheet HTML 7Page - Silicon Storage Technology, Inc SST28VF040A-90-4I-PH Datasheet HTML 8Page - Silicon Storage Technology, Inc SST28VF040A-90-4I-PH Datasheet HTML 9Page - Silicon Storage Technology, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 2 / 24 page
background image
2
Data Sheet
4 Mbit SuperFlash EEPROM
SST28SF040A / SST28VF040A
©2001 Silicon Storage Technology, Inc.
S71077-04-000
6/01
310
Command Definitions
Table 4 contains a command list and a brief summary of
the commands. The following is a detailed description of
the operations initiated by each command.
Sector-Erase Operation
The Sector-Erase operation erases all bytes within a sector
and is initiated by a setup command and an execute com-
mand. A sector contains 256 Bytes. This sector erasability
enhances the flexibility and usefulness of the SST28SF/
VF040A, since most applications only need to change a
small number of bytes or sectors, not the entire chip.
The setup command is performed by writing 20H to the
device. The execute command is performed by writing D0H
to the device. The Erase operation begins with the rising
edge of the WE# or CE#, whichever occurs first and termi-
nates automatically by using an internal timer. The End-of-
Erase can be determined using either Data# Polling, Tog-
gle Bit, or Successive Reads detection methods. See Fig-
ure 9 for timing waveforms.
The two-step sequence of a setup command followed by
an execute command ensures that only memory contents
within the addressed sector are erased and other sectors
are not inadvertently erased.
Sector-Erase Flowchart Description
Fast and reliable erasing of the memory contents within a
sector is accomplished by following the Sector-Erase flow-
chart as shown in Figure 18. The entire procedure consists
of the execution of two commands. The Sector-Erase oper-
ation will terminate after a maximum of 4 ms. A Reset com-
mand can be executed to terminate the Sector-Erase
operation; however, if the Erase operation is terminated
prior to the 4 ms time-out, the sector may not be fully
erased. A Sector-Erase command can be reissued as
many times as necessary to complete the Erase operation.
The SST28SF/VF040A cannot be over-erased.
Chip-Erase Operation
The Chip-Erase operation is initiated by a setup command
(30H) and an execute command (30H). The Chip-Erase
operation allows the entire array of the SST28SF/VF040A
to be erased in one operation, as opposed to 2048 Sector-
Erase operations. Using the Chip-Erase operation will mini-
mize the time to rewrite the entire memory array. The Chip-
Erase operation will terminate after a maximum of 20 ms. A
Reset command can be executed to terminate the Erase
operation; however, if the Chip-Erase operation is termi-
nated prior to the 20 ms time-out, the chip may not be com-
pletely erased. If an erase error occurs a Chip-Erase
command can be reissued as many times as necessary to
complete the Chip-Erase operation. The SST28SF/
VF040A cannot be over-erased. (See Figure 8)
Byte-Program Operation
The Byte-Program operation is initiated by writing the setup
command (10H). Once the program setup is performed,
programming is executed by the next WE# pulse. See Fig-
ures 5 and 6 for timing waveforms. The address bus is
latched on the falling edge of WE# or CE#, whichever
occurs last. The data bus is latched on the rising edge of
WE# or CE#, whichever occurs first, and begins the Pro-
gram operation. The Program operation is terminated auto-
matically by an internal timer. See Figure 16 for the
programming flowchart.
The two-step sequence of a setup command followed by
an execute command ensures that only the addressed
byte is programmed and other bytes are not inadvertently
programmed.
The Byte-Program Flowchart Description
Programming data into the SST28SF/VF040A is accom-
plished by following the Byte-Program flowchart shown in
Figure 16. The Byte-Program command sets up the byte
for programming. The address bus is latched on the falling
edge of WE# or CE#, whichever occurs last. The data bus
is latched on the rising edge of WE# or CE#, whichever
occurs first and begins the Program operation. The end of
program can be detected using either the Data# Polling,
Toggle bit, or Successive reads.
Reset Operation
The Reset command is provided as a means to safely
abort the Erase or Program command sequences. Follow-
ing either setup commands (Erase or Program) with a write
of FFH will safely abort the operation. Memory contents will
not be altered. After the Reset command, the device
returns to the Read mode. The Reset command does not
enable Software Data Protection. See Figure 7 for timing
waveforms.
Read
The Read operation is initiated by setting CE#, and OE# to
logic low and setting WE# to logic high (See Table 3). See
Figure 4 for Read cycle timing waveform. The Read opera-
tion from the host retrieves data from the array. The device
remains enabled for Read until another operation mode is
accessed. During initial power-up, the device is in the Read
mode and is Software Data protected. The device must be
unprotected to execute a Write command.


유사한 부품 번호 - SST28VF040A-90-4I-PH

제조업체부품명데이터시트상세설명
logo
Silicon Storage Technol...
SST28VF040A-150-4C-EH SST-SST28VF040A-150-4C-EH Datasheet
339Kb / 26P
   4 Mbit (512K x8) SuperFlash EEPROM
SST28VF040A-150-4C-NH SST-SST28VF040A-150-4C-NH Datasheet
339Kb / 26P
   4 Mbit (512K x8) SuperFlash EEPROM
SST28VF040A-200-4C-EH SST-SST28VF040A-200-4C-EH Datasheet
339Kb / 26P
   4 Mbit (512K x8) SuperFlash EEPROM
SST28VF040A-200-4C-NH SST-SST28VF040A-200-4C-NH Datasheet
339Kb / 26P
   4 Mbit (512K x8) SuperFlash EEPROM
SST28VF040A-200-4I-EH SST-SST28VF040A-200-4I-EH Datasheet
339Kb / 26P
   4 Mbit (512K x8) SuperFlash EEPROM
More results

유사한 설명 - SST28VF040A-90-4I-PH

제조업체부품명데이터시트상세설명
logo
Silicon Storage Technol...
SST28SF040A SST-SST28SF040A_03 Datasheet
339Kb / 26P
   4 Mbit (512K x8) SuperFlash EEPROM
logo
Greenliant systems
GLS36VF1601G GREENLIANT-GLS36VF1601G Datasheet
1Mb / 36P
   16 Mbit (x8/x16) Concurrent SuperFlash
logo
Silicon Storage Technol...
SST36VF1602E SST-SST36VF1602E Datasheet
419Kb / 35P
   16 Mbit (x8/x16) Concurrent SuperFlash
SST36VF3203 SST-SST36VF3203 Datasheet
431Kb / 34P
   32 Mbit (x8/x16) Concurrent SuperFlash
SST36VF1601G SST-SST36VF1601G Datasheet
935Kb / 36P
   16 Mbit (x8/x16) Concurrent SuperFlash
logo
STMicroelectronics
M68AF511AL STMICROELECTRONICS-M68AF511AL Datasheet
93Kb / 18P
   4 Mbit (512K x8), 5V Asynchronous SRAM
M68AW511A STMICROELECTRONICS-M68AW511A Datasheet
134Kb / 21P
   4 Mbit (512K x8) 3.0V Asynchronous SRAM
M68AF511A STMICROELECTRONICS-M68AF511A Datasheet
129Kb / 18P
   4 Mbit (512K x8), 5V Asynchronous SRAM
logo
Silicon Storage Technol...
SST34HF1621 SST-SST34HF1621 Datasheet
486Kb / 32P
   16 Mbit Concurrent SuperFlash 2 / 4 Mbit SRAM ComboMemory
SST34HF3244C SST-SST34HF3244C Datasheet
778Kb / 40P
   32 Mbit Concurrent SuperFlash 4 Mbit SRAM ComboMemory
More results


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


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   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