29F020 Ver la hoja de datos (PDF) - Advanced Micro Devices

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29F020

2 Megabit (256 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory

Advanced Micro Devices 

REVISION SUMMARY

Revision A (July 1998)

Initial release.

Revision B (January 1999)

Distinctive Characteristics

Added:

■ 20-year data retention at 125°C

— Reliable operation for the life of the system

AC Characterisitics—Read Operations Table

tEHQZ, tGHQZ: Changed the 55 speed option to 15 ns

from 20 ns

AC Characteristics—Erase/Program Operations

tWLAX: Changed the 90 speed option to 45 ns from 50 ns.

tDVWH: Changed the 55 speed option to 25 ns from 30 ns.

tWLWH: changed the 55 speed option to 30 ns from 35 ns.

AC Characteristics—Alternate CE# Controlled

Erase/Program Operations

tDVEH: Changed the 55 speed option to 25 ns from 30 ns.

tELEH: Changed the 55 speed option to 30 ns from 35 ns.

tELAX: Changed the 90 speed option to 45 ns from 50 ns.

DC Characteristics—TTL/NMOS Compatible

ICC1, ICC2, ICC3, ICC4: Added Note 2 “Maximum ICC

specifications are tested with VCC = VCCmax”.

DC Characteristics—CMOS Compatible

ICC1, ICC2, ICC3, ICC4: Added Note 2 “Maximum ICC

specifications are tested with VCC = VCCmax”.

Revision C (November 12, 1999)

AC Characteristics—Figure 11. Program

Operations Timing and Figure 12. Chip/Sector

Erase Operations

Deleted tGHWL and changed OE# waveform to start at

high.

Physical Dimensions

Replaced figures with more detailed illustrations.

Revision D (November 28, 2000)

Global

Added table of contents.

Ordering Information

Deleted burn-in option.

Table 5, Command Definitions

In Note 4, changed the lower address bit of don’t care

range to A11.

Trademarks

Copyright © 2000 Advanced Micro Devices, Inc. All rights reserved.

AMD, the AMD logo, and combinations thereof are registered trademarks of Advanced Micro Devices, Inc.

ExpressFlash is a trademark of Advanced Micro Devices, Inc.

Product names used in this publication are for identification purposes only and may be trademarks of their respective companies

November 28, 2000

Am29F002B/Am29F002NB

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