AM29LV400B AMD [Advanced Micro Devices], AM29LV400B Datasheet

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AM29LV400B

Manufacturer Part Number
AM29LV400B
Description
4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
Manufacturer
AMD [Advanced Micro Devices]
Datasheet

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Am29LV400B
4 Megabit (512 K x 8-Bit/256 K x 16-Bit)
CMOS 3.0 Volt-only Boot Sector Flash Memory
DISTINCTIVE CHARACTERISTICS
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.
Single power supply operation
— Full voltage range: 2.7 to 3.6 volt read and write
— Regulated voltage range: 3.0 to 3.6 volt read
Manufactured on 0.35 m process technology
— Compatible with 0.5 m Am29LV400 device
High performance
— Full voltage range: access times as fast as 80 ns
— Regulated voltage range: access times as fast
Ultra low power consumption (typical values at
5 MHz)
— 200 nA Automatic Sleep mode current
— 200 nA standby mode current
— 7 mA read current
— 15 mA program/erase current
Flexible sector architecture
— One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and
— One 8 Kword, two 4 Kword, one 16 Kword, and
— Supports full chip erase
— Sector Protection features:
operations for battery-powered applications
and write operations and for compatibility with
high performance 3.3 volt microprocessors
as 70 ns
seven 64 Kbyte sectors (byte mode)
seven 32 Kword sectors (word mode)
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
ADVANCE INFORMATION
Unlock Bypass Program Command
— Reduces overall programming time when
Top or bottom boot block configurations
available
Embedded Algorithms
— Embedded Erase algorithm automatically
— Embedded Program algorithm automatically
Minimum 1,000,000 write cycle guarantee per
sector
Package option
— 48-ball FBGA
— 48-pin TSOP
— 44-pin SO
Compatibility with JEDEC standards
— Pinout and software compatible with single-
— Superior inadvertent write protection
Data# Polling and toggle bits
— Provides a software method of detecting
Ready/Busy# pin (RY/BY#)
— Provides a hardware method of detecting
Erase Suspend/Erase Resume
— Suspends an erase operation to read data from,
Hardware reset pin (RESET#)
— Hardware method to reset the device to reading
issuing multiple program command sequences
preprograms and erases the entire chip or any
combination of designated sectors
writes and verifies data at specified addresses
power supply Flash
program or erase operation completion
program or erase cycle completion
or program data to, a sector that is not being
erased, then resumes the erase operation
array data
Publication# 21523
Issue Date: January 1998
Rev: A Amendment/0

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AM29LV400B Summary of contents

Page 1

... ADVANCE INFORMATION Am29LV400B 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory DISTINCTIVE CHARACTERISTICS 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 ...

Page 2

... GENERAL DESCRIPTION The Am29LV400B Mbit, 3.0 volt-only Flash memory organized as 524,288 bytes or 262,144 words. The device is offered in 48-ball FBGA, 44-pin SO, and 48-pin TSOP packages. The word-wide data (x16) appears on DQ15–DQ0; the byte-wide (x8) data appears on DQ7–DQ0. This device is designed to be programmed in-system using only a single 3 ...

Page 3

... =3.0–3.6 V 70R CC = 2.7–3 Sector Switches Erase Voltage Generator PGM Voltage Generator Chip Enable Output Enable Logic Y-Decoder STB Timer X-Decoder Am29LV400B Am29LV400B 80 90 120 80 90 120 80 90 120 – DQ0 DQ15 (A-1) Input/Output Buffers Data STB Latch Y-Gating ...

Page 4

... DQ11 14 DQ3 15 DQ10 16 DQ2 17 DQ9 18 DQ1 19 DQ8 20 DQ0 1/29/ Standard TSOP Reverse TSOP Am29LV400B 48 A16 47 BYTE DQ15/A-1 44 DQ7 43 DQ14 42 DQ6 41 DQ13 40 DQ5 39 DQ12 38 DQ4 DQ11 ...

Page 5

... A17 A6 A5 DQ0 DQ2 DQ5 A10 A11 DQ7 A12 A14 A15 A16 Am29LV400B 44 RESET A10 39 A11 38 A12 37 A13 36 A14 35 A15 34 A16 33 BYTE DQ15/A-1 30 DQ7 29 DQ14 28 DQ6 ...

Page 6

... compromised if the package body is exposed to temperatures above 150 C for prolonged periods of time. LOGIC SYMBOL 18 A0–A17 CE# OE# WE# RESET# BYTE# Am29LV400B DQ0–DQ15 (A-1) RY/BY# 21523A-4 6 ...

Page 7

... Am29LV400BT90, FC, FI, FE, Am29LV400BB90 SC, SI, SE, WAC, WAI, WAE Am29LV400BT120, Am29LV400BB120 Trademarks Copyright © 1998 Advanced Micro Devices, Inc. All rights reserved. AMD, the AMD logo, and combinations thereof are registered trademarks of Advanced Micro Devices, Inc. ExpressFlash is a trademark of Advanced Micro Devices, Inc. ...

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