8/18/97

Am29F800T/Am29F800B

41

PR E L IM IN A R Y

REVISION SUMMARY FOR Am29F800

Distinctive Characteristics:

High Performance: The fastest speed option available

is now 70 ns.

Enhanced power management for standby mode:

Changed typical standby current to 1

µA.

General Description:

Added 70 ns speed option.

Product Selector Guide:

Added -70 column.

Pin Configuration:

Added -70 speed option.

Ordering Information, Standard Products:

The -70 speed option is now listed in the example.

Valid Combinations: Added combinations for the -70

speed option.

Table 7, Command Definitions:

Corrected byte addresses for unlock and command cy-

cles from “2AA” to “AAA”.

In the previous data sheet revision, the addresses for

command definitions were shortened from four hexa-

decimal digits to three. The more accurately represents

the actual address bits required, A10–A0. The remain-

ing upper address bits are don’t cares.

The new address is compatible with the previous four-

digit definition of “AAAA”; the only difference is that the

highest-order hexadecimal digit “A” is now “don’t care”.

In fact, software programs written using the previous

four-digit definitions do not require any changes; they

remain completely compatible with the new three-digit

definitions.

The addresses for the byte-mode read cycles (fourth

cycle) in the autoselect mode are corrected from 01h to

02h for device ID, and from SAX02h to SAX04h for

sector protect verification.

Note 5 is clarified.

Operating Ranges:

list.

DC Characteristics:

AC Characteristics:

Read Only Operations Characteristics: Added the -70

column and test conditions.

Test Conditions, Figure 7:

AC Characteristics:

Write/Erase/Program Operations, Alternate CE Con-

trolled Writes: Added the -70 column; revised word/

byte programming and sector erase specifications.

Erase and Programming Performance:

Revised specifications.

Trademarks

Copyright © 1997 Advanced Micro Devices, Inc. All rights reserved.

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

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