ADVANCE INFORMATION
Am29LV004B
4 Megabit (512 K x 8-Bit)
CMOS 3.0 Volt-only Boot Sector Flash Memory
DISTINCTIVE CHARACTERISTICS
■ Single power supply operation
■ Unlock Bypass Program Command
— Full voltage range: 2.7 to 3.6 volt read and write
operations for battery-powered applications
— Reduces overall programming time when
issuing multiple program command sequences
— Regulated voltage range: 3.0 to 3.6 volt read and
write operations and for compatibility with high
performance 3.3 volt microprocessors
■ Top or bottom boot block configurations
available
■ Embedded Algorithms
■ Manufactured on 0.35 µm process technology
— Compatible with 0.5 µm Am29LV004 device
— 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 80 ns
— Regulated voltage range: access times as fast
as 70 ns
■ Minimum 1,000,000 write cycle guarantee per
sector
■ Ultra low power consumption (typical values at
■ Package option
5 MHz)
— 40-pin TSOP
— 200 nA Automatic Sleep mode current
— 200 nA standby mode current
— 7 mA read current
■ Compatibility with JEDEC standards
— Pinout and software compatible with single-
power supply Flash
— 15 mA program/erase current
— Superior inadvertent write protection
■ Flexible sector architecture
■ Data# Polling and toggle bits
— One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and
seven 64 Kbyte sectors
— Provides a software method of detecting
program or erase operation completion
— Supports full chip erase
— Sector Protection features:
■ Ready/Busy# pin (RY/BY#)
A hardware method of locking a sector to
prevent any program or erase operations within
that sector
— Provides a hardware method of detecting
program or erase cycle completion
■ Erase Suspend/Erase Resume
Sectors can be locked in-system or via
programming equipment
— Suspends an erase operation to read data from,
or program data to, a sector that is not being
erased, then resumes the erase operation
Temporary Sector Unprotect feature allows code
changes in previously locked sectors
■ Hardware reset pin (RESET#)
— 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# 21522 Rev: A Amendment/0
Issue Date: January 1998
Refer to AMD’s Website (www.amd.com) for the latest information.