ADVANCE INFORMATION
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.
Publication# 21354 Rev: A Amendment/+1
Issue Date: February 1998
Refer to AMD’s Website (www.amd.com) for the latest information.
Am29LV040B
4 Megabit (512 K x 8-Bit)
CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory
DISTINCTIVE CHARACTERISTICS
a73 Single power supply operation
— Full voltage range: 2.7 to 3.6 volt read and write
operations for battery-powered applications
— Regulated voltage range: 3.0 to 3.6 volt read and
write operations and for compatibility with high
performance 3.3 volt microprocessors
a73 Manufactured on 0.35 µm process technology
a73 High performance
— Full voltage range: access times as fast as 70 ns
— Regulated voltage range: access times as fast
as 55 ns
a73 Ultra low power consumption (typical values at
5MHz)
— Automatic sleep mode: 1 µA
— Standby mode: 1 µA
— Read mode: 7 mA
— Program/erase mode: 15 mA
a73 Flexible sector architecture
— Eight 64 Kbyte sectors
— Any combination of sectors can be erased;
supports full chip erase
— Sector Protection features:
Hardware method of locking a sector to prevent
any program or erase operations within that
sector
Sectors can be locked via programming
equipment
a73 Unlock Bypass Program Command
— Reduces overall programming time when
issuing multiple program command sequences
a73 Embedded Algorithms
— Embedded Erase algorithms automatically
preprogram and erase the entire chip or any
combination of designated sectors
— Embedded Program algorithms automatically
writes and verifies data at specified addresses
a73 Minimum 1,000,000 write/erase cycles
guaranteed
a73 Package option
— 32-pin PLCC
— 32-pin TSOP
a73 Compatibility with JEDEC standards
— Pinout and software compatible with single-
power supply Flash
— Superior inadvertent write protection
a73 Data# Polling and toggle bits
— Provides a software method of detecting
program or erase cycle completion
a73 Erase Suspend/Resume
— Supports reading data from or programming
data to a sector not being erased