ADVANCE INFORMATION

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

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

without notice.

Publication# Am29SL400C Rev: A

Amendment+5

Refer to AMD’s Website (www.amd.com) for the latest information.

Am29SL400C

4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 1.8 Volt-only

Super Low Voltage Flash Memory

Distinctive Characteristics

■

Single power supply operation

— 1.65 to 2.2 V for read, program, and erase

operations

— Ideal for battery-powered applications

■

Manufactured on 0.32 µm process

technology

■

High performance

— Access times as fast as 100 ns

■

Ultra low power consumption (typical

values at 5 MHz)

— 1 µA Automatic Sleep Mode current

— 1 µA standby mode current

— 5 mA read current

— 20 mA program/erase current

■

Flexible sector architecture

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

seven 64 Kbyte sectors (byte mode)

— One 8 Kword, two 4 Kword, one 16 Kword, and

seven 32 Kword sectors (word mode)

— 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

■

Unlock Bypass Program Command

— Reduces overall programming time when

issuing multiple program command sequences

■

Top or bottom boot block configurations

available

■

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

■

Minimum 1,000,000 erase cycle

guarantee per sector

■

20-year data retention at 125°C

■

Package option

—48-ball FBGA

—48-pin TSOP

■

Compatibility with JEDEC standards

— Pinout and software compatible with

single-power supply Flash

— Superior inadvertent write protection

■

Data# Polling and toggle bits

— Provides a software method of detecting

program or erase operation completion

■

Ready/Busy# pin (RY/BY#)

— Provides a hardware method of detecting

program or erase cycle completion

■

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

■

Hardware reset pin (RESET#)

— Hardware method to reset the device to

reading array data