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SPANSION - Migrating from the S71WS512N to the S71WS512P

Numéro de référence S71WS512P
Description Migrating from the S71WS512N to the S71WS512P
Fabricant SPANSION 
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S71WS512P fiche technique
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S71WS512N to S71WS512P
Migrating from the S71WS512N to the S71WS512P
Application Note
by Daisuke Nakata
1. Introduction
Migrating from the S71WS512N to the monolithic S71WS512P is a simple process; however, the user should be aware of a few
differences between these two parts. These differences are the result of the S71WS512N using two S29WS256N die in series
while the S71WS512P uses a single S29WS512P configuration. This application note describes these differences in detail so
users currently using the S71WS512N configuration can plan ahead and include the necessary software to ensure a smooth
migration to the S71WS512P. Both software and hardware considerations are covered. Table 1.1 shows a comparison of the
key features between the two flash device cores.
Table 1.1 Comparison of Key Features
Futures
Technology
Process Rule
VCC
VIO (VCCQ)
Max Density
Configuration Register
Sector Architecture
Bank Architecture
Bank Size
Boot Option
Common Flash Interface (CFI)
Simultaneous Read/Write
Asynchronous Read Mode
Page Mode Read
Page Size
Synchronous (Burst) Read Mode
Burst Frequency
Burst Length
Single Word / Write Buffer Program
Write Buffer Size
Program Suspend / Program Resume
Sector Erase / Chip Erase
Erase Suspend / Erase Resume
Unlock Bypass / Fast Mode
Accelerated Program / Chip Erase
Sector Protection
Secured Silicon Area
S29WS256N
MirrorBit
110 nm
1.70 V to 1.95 V
=VCC
256 Mb
CR0-CR15
16 K-words Small Sector
64 K-words Large Sector
16 Bank Structure
2 Mb
Top / Bottom / Dual
Yes
Yes
Yes
Yes
4-words
Yes
54 MHz / 66 MHz / 80 MHz
8 / 16 / 32 Continuous
Yes
32-words
Yes
Yes
Yes
Yes
Yes
Hardware: WP#
Software: ASP
128-words factory locked
128-words customer lockable
S29WS512P
MirrorBit
90 nm
1.70 V to 1.95 V
=VCC
512 Mb
CR0.0 - CR0.15, CR1.0 - CR1.15
16 K-words Small Sector
64 K-words Large Sector
16 Bank Structure
4 Mb
Top / Bottom / Dual
Yes
Yes
Yes
Yes
8-words
Yes
54 MHz / 66 MHz / 80 MHz / 108 MHz
8 / 16 / 32 Continuous
Yes
32-words
Yes
Yes
Yes
Yes
Yes
Hardware: WP#
Software: ASP
128-words factory locked
128-words customer lockable
Publication Number 2xWS-N_to_WS-P_AN
Revision 01E
Issue Date October 3, 2006

PagesPages 18
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