์ „์ž๋ถ€ํ’ˆ ๋ฐ์ดํ„ฐ์‹œํŠธ ๊ฒ€์ƒ‰์—”์ง„
  Korean  โ–ผ

Delete All
ON OFF
ALLDATASHEET.CO.KR

X  

Preview PDF Download HTML

S71WS512NC0BFWE73 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 28 Page - SPANSION

๋ถ€ํ’ˆ๋ช… S71WS512NC0BFWE73
์ƒ์„ธ๋‚ด์šฉ  Stacked Multi-Chip Product (MCP)
Download  188 Pages
Scroll/Zoom Zoom In 100% Zoom Out
์ œ์กฐ์‚ฌ  SPANSION [SPANSION]
ํ™ˆํŽ˜์ด์ง€  http://www.spansion.com
Logo 

S71WS512NC0BFWE73 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 28 Page - SPANSION

Zoom Inzoom in Zoom Outzoom out
/ 188 page
 28 / 188 page
background image
26
S71WS-Nx0 Based MCPs
S71WS-N_01_A4 September 15, 2005
Ad van c e
Inf o rmation
10 Device Operations
This section describes the read, program, erase, simultaneous read/write operations, handshak-
ing, and reset features of the Flash devices.
Operations are initiated by writing specific commands or a sequence with specific address and
data patterns into the command registers (see Tables 15.1 and 15.2). The command register itself
does not occupy any addressable memory location; rather, it is composed of latches that store
the commands, along with the address and data information needed to execute the command.
The contents of the register serve as input to the internal state machine and the state machine
outputs dictate the function of the device. Writing incorrect address and data values or writing
them in an improper sequence may place the device in an unknown state, in which case the sys-
tem must write the reset command to return the device to the reading array data mode.
10.1
Device Operation Table
The device must be setup appropriately for each operation. Table 10.1 describes the required
state of each control pin for any particular operation.
Table 10.1 Device Operations
Legend: L = Logic 0, H = Logic 1, X = Donโ€™t Care, I/O = Input/Output.
10.2 Asynchronous Read
All memories require access time to output array data. In an asynchronous read operation, data
is read from one memory location at a time. Addresses are presented to the device in random
order, and the propagation delay through the device causes the data on its outputs to arrive asyn-
chronously with the address on its inputs.
The device defaults to reading array data asynchronously after device power-up or hardware re-
set. To read data from the memory array, the system must first assert a valid address on Amaxโ€“
A0, while driving AVD# and CE# to VIL. WE# must remain at VIH. The rising edge of AVD# latches
the address. The OE# signal must be driven to VIL, once AVD# has been driven to VIH. Data is
output on A/DQ15-A/DQ0 pins after the access time (tOE) has elapsed from the falling edge of
OE#.
Operation
CE#
OE#
WE#
Addresses
DQ15โ€“0
RESET#
CLK
AVD#
Asynchronous Read - Addresses Latched
L
L
H
Addr In
Data Out
H
X
Asynchronous Read - Addresses Steady State
L
L
H
Addr In
Data Out
H
X
L
Asynchronous Write
L
H
L
Addr In
I/O
H
X
L
Synchronous Write
L
H
L
Addr In
I/O
H
Standby (CE#)
H
X
X
X
HIGH Z
H
X
X
Hardware Reset
X
X
X
X
HIGH Z
L
X
X
Burst Read Operations (Synchronous)
Load Starting Burst Address
L
X
H
Addr In
X
H
Advance Burst to next address with appropriate
Data presented on the Data Bus
LL
H
X
Burst
Data Out
HH
Terminate current Burst read cycle
H
X
H
X
HIGH Z
H
X
Terminate current Burst read cycle via RESET#
X
X
H
X
HIGH Z
L
X
X
Terminate current Burst read cycle and start new
Burst read cycle
LX
H
Addr In
I/O
H


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  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99  100   ...More


๋ฐ์ดํ„ฐ์‹œํŠธ Download




๋งํฌ URL



Privacy Policy
ALLDATASHEET.CO.KR
ALLDATASHEET ๊ฐ€ ๊ท€ํ•˜์— ๋„์›€์ด ๋˜์…จ๋‚˜์š”?  [ DONATE ]  

Alldatasheet๋Š”?   |   ๊ด‘๊ณ ๋ฌธ์˜    |   ์šด์˜์ž์—๊ฒŒ ์—ฐ๋ฝํ•˜๊ธฐ   |   ๊ฐœ์ธ์ •๋ณด์ทจ๊ธ‰๋ฐฉ์นจ   |   ์ฆ๊ฒจ์ฐพ๊ธฐ   |   ๋งํฌ๊ตํ™˜   |   ์ œ์กฐ์‚ฌ๋ณ„ ๊ฒ€์ƒ‰
All Rights Reservedยฉ 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