PRELIMINARY
Am29LV004
4 Megabit (512 K x 8-Bit)
CMOS 3.0 Volt-only Boot Sector Flash Memory
DISTINCTIVE CHARACTERISTICS
■ Single power supply operation
■ Top or bottom boot block configurations
available
— Full voltage range: 2.7 to 3.6 volt read and write
operations for battery-powered applications
■ Embedded Algorithms
— Regulated voltage range: 3.0 to 3.6 volt read
and write operations and for compatibility with
high performance 3.3 volt microprocessors
— Embedded Erase algorithm automatically
preprograms and erases the entire chip or any
combination of designated sectors
■ High performance
— Embedded Program algorithm automatically
writes and verifies data at specified addresses
— Full voltage range: access times as fast as 100
ns
■ Typical 1,000,000 write cycles per sector
— Regulated voltage range: access times as fast
as 90 ns
(100,000 cycles minimum guaranteed)
■ Package option
■ Ultra low power consumption (typical values at
— 40-pin TSOP
5 MHz)
■ Compatibility with JEDEC standards
— 200 nA Automatic Sleep mode current
— 200 nA standby mode current
— 10 mA read current
— Pinout and software compatible with single-
power supply Flash
— Superior inadvertent write protection
— 20 mA program/erase current
■ Data# Polling and toggle bits
■ Flexible sector architecture
— Provides a software method of detecting
program or erase operation completion
— One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and
seven 64 Kbyte sectors
■ Ready/Busy# pin (RY/BY#)
— Supports full chip erase
— Provides a hardware method of detecting
program or erase cycle completion
— Sector Protection features:
A hardware method of locking a sector to
prevent any program or erase operations within
that sector
■ 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
Sectors can be locked via programming
equipment
■ Hardware reset pin (RESET#)
Temporary Sector Unprotect feature allows code
changes in previously locked sectors
— Hardware method to reset the device to reading
array data
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# 20510 Rev: D Amendment/+1
Issue Date: March 1998
Refer to AMD’s Website (www.amd.com) for the latest information.