Publication# 22286

Rev: E Amendment/2

Issue Date: July 29, 2005

This document contains information on a product under development at Advanced Micro Devices. The information

is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed

product without notice. 8/5/05This document contains information on a product under development at Advanced

Micro Devices. The information is intended to help you evaluate this product. AMD reserves the right to change or

Am29F004B

4 Megabit (512 K x 8-Bit)

CMOS 5.0 Volt-only Boot Sector Flash Memory

DISTINCTIVE CHARACTERISTICS

5.0 Volt single power supply operation

— Minimizes system-level power requirements

High performance

— Access times as fast as 70 ns

Manufactured on 0.32 µm process technology

Ultra low power consumption (typical values at

5 MHz)

— 20 mA typical active read current

— 30 mA typical program/erase current

— 1 µA typical standby mode current

Flexible sector architecture

— One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and

seven 64 Kbyte sectors

— Supports full chip erase

— Sector Protection features:

A hardware method of locking a sector to

prevent any program or erase operations within

that sector

Sectors can be locked in-system or via

programming equipment

Temporary Sector Unprotect feature allows code

changes in previously locked sectors

Top or bottom boot block configurations available

Minimum 1,000,000 write cycle guarantee per

sector

Package option

— 32-pin PLCC

Compatible with JEDEC standards

— Pinout and software compatible with single-

power supply Flash

— Superior inadvertent write protection

Embedded Algorithms

— Embedded Erase algorithm automatically

preprograms and erases the entire chip or any

combination of designated sectors

— Embedded Program algorithm automatically

writes and verifies data at specified addresses

Erase Suspend/Erase Resume

— Suspends an erase operation to read data from,

or program data to, a sector that is not being

erased, then resumes the erase operation

Data# Polling and toggle bits

— Provides a software method of detecting

program or erase operation completion

20-year data retention at 125

°C