E
n
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PRODUCT PREVIEW
BYTE-WIDE
SMART 3 FlashFile™ MEMORY FAMILY
4, 8, AND 16 MBIT
28F004S3, 28F008S3, 28F016S3
Includes Commercial and Extended Temperature Specifications
SmartVoltage Technology
Smart 3 Flash: 2.7V (Read-Only) or
3.3V V
CC
and 3.3V or 12V V
PP
High-Performance
120 ns Read Access Time
Enhanced Data Protection Features
Absolute Protection with V
PP
= GND
Flexible Block Locking
Block Write Lockout during Power
Transitions
Enhanced Automated Suspend Options
Program Suspend to Read
Block Erase Suspend to Program
Block Erase Suspend to Read
Industry-Standard Packaging
40-Lead TSOP, 44-Lead PSOP
n
n
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n
High-Density 64-Kbyte Symmetrical
Erase Block Architecture
4 Mbit: Eight Blocks
8 Mbit: Sixteen Blocks
16 Mbit: Thirty-Two Blocks
Extended Cycling Capability
100,000 Block Erase Cycles
Low Power Management
Deep Power-Down Mode
Automatic Power Savings Mode
Decreases I
CC
in Static Mode
Automated Program and Block Erase
Command User Interface
Status Register
SRAM-Compatible Write Interface
ETOX™ V Nonvolatile Flash
Technology
n
n
Intel’s byte-wide Smart 3 FlashFile™ memory family renders a variety of density offerings in the same
package. The 4-, 8-, and 16-Mbit byte-wide FlashFile memories provide high-density, low-cost, nonvolatile,
read/write storage solutions for a wide range of applications. Their symmetrically-blocked architecture, flexible
voltage, and extended cycling provide highly flexible components suitable for resident flash arrays, SIMMs,
and memory cards. Enhanced suspend capabilities provide an ideal solution for code or data storage
applications. For secure code storage applications, such as networking, where code is either directly
executed out of flash or downloaded to DRAM, the 4-, 8-, and 16-Mbit FlashFile memories offer three levels
of protection: absolute protection with V
PP
at GND, selective hardware block locking, or flexible software
block locking. These alternatives give designers ultimate control of their code security needs.
This family of products is manufactured on Intel’s 0.4
µm
ETOX™ V process technology. They come in
industry-standard packages: the 40-lead TSOP, ideal for board-constrained applications, and the rugged
44-lead PSOP. Based on the 28F008SA architecture, the byte-wide Smart 3 FlashFile memory family
enables quick and easy upgrades for designs that demand state-of-the-art technology.
June 1997
Order Number: 290598-003
Information in this document is provided in connection with Intel products. No license, express or implied, by estoppel or
otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of
Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to
sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or
infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life
saving, or life sustaining applications.
Intel may make changes to specifications and product descriptions at any time, without notice.
The 28F004S3, 28F008S3, 28F016S3 may contain design defects or errors known as errata which may cause the product to
deviate from published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be
obtained from:
Intel Corporation
P.O. Box 7641
Mt. Prospect, IL 60056-7641
or call 1-800-879-4683
or visit Intel’s Website at http:\\www.intel.com
COPYRIGHT © INTEL CORPORATION, 1997
*
Third-party brands and names are the property of their respective owners
CG-041493
E
BYTE-WIDE SMART 3 FlashFile™ MEMORY FAMILY
CONTENTS
PAGE
PAGE
6.0 ELECTRICAL SPECIFICATIONS..................26
6.1 Absolute Maximum Ratings ........................26
6.2 Commercial Temperature Operating
Conditions .................................................26
6.2.1 Capacitance.........................................26
6.2.2 AC Input/Output Test Conditions .........27
6.2.3 Commercial Temperature
DC Characteristics..............................28
6.2.4 Commercial Temperature
AC Characteristics - Read-Only
Operations..........................................30
6.2.5 Commercial Temperature Reset
Operations..........................................31
6.2.6 Commercial Temperature
AC Characteristics - Write Operations 32
6.2.7 Commercial Temperature Block Erase,
Program, and Lock-Bit Configuration
Performance.......................................34
6.3 Extended Temperature Operating
Conditions .................................................35
6.3.1 Extended Temperature
DC Characteristics..............................35
6.3.2 Extended Temperature
AC Characteristics - Read-Only
Operations..........................................35
APPENDIX A. Ordering Information..................36
APPENDIX B. Additional Information ...............37
1.0 INTRODUCTION .............................................5
1.1 New Features...............................................5
1.2 Product Overview.........................................5
1.3 Pinout and Pin Description ...........................6
2.0 PRINCIPLES OF OPERATION .......................9
2.1 Data Protection ..........................................10
3.0 BUS OPERATION .........................................10
3.1 Read ..........................................................10
3.2 Output Disable ...........................................10
3.3 Standby......................................................10
3.4 Deep Power-Down .....................................10
3.5 Read Identifier Codes Operation ................11
3.6 Write ..........................................................11
4.0 COMMAND DEFINITIONS ............................11
4.1 Read Array Command................................14
4.2 Read Identifier Codes Command ...............14
4.3 Read Status Register Command................14
4.4 Clear Status Register Command................14
4.5 Block Erase Command ..............................14
4.6 Program Command....................................15
4.7 Block Erase Suspend Command................15
4.8 Program Suspend Command .....................16
4.9 Set Block and Master Lock-Bit Commands 16
4.10 Clear Block Lock-Bits Command..............17
5.0 DESIGN CONSIDERATIONS ........................25
5.1 Three-Line Output Control..........................25
5.2 RY/BY# Hardware Detection ......................25
5.3 Power Supply Decoupling ..........................25
5.4 V
PP
Trace on Printed Circuit Boards...........25
5.5 V
CC
, V
PP
, RP# Transitions .........................25
5.6 Power-Up/Down Protection ........................25
PRODUCT PREVIEW
3
BYTE-WIDE SMART 3 FlashFile™ MEMORY FAMILY
E
REVISION HISTORY
Number
-001
-002
Original version
Table 3 revised to reflect change in abbreviations from “W” for write to “P” for program.
Ordering information graphic (Appendix A) corrected: from PB = Ext. Temp. 44-Lead
PSOP to
TB
= Ext. Temp. 44-Lead PSOP
Updated Ordering Information and table
Correction to table, Section 6.2.3. Under I
LO
Test Conditions, previously read V
IN
= V
CC
or GND, corrected to V
OUT
= V
CC
or GND
Section 6.2.7, modified Program and Block Erase Suspend Latency Times
Updated disclaimer
Description
-003
4
PRODUCT PREVIEW
E
1.0
1.1
BYTE-WIDE SMART 3 FlashFile™ MEMORY FAMILY
INTRODUCTION
1.2
Product Overview
This datasheet contains 4-, 8-, and 16-Mbit Smart 3
FlashFile memory specifications. Section 1
provides a flash memory overview. Sections 2, 3, 4,
and 5 describe the memory organization and
functionality.
Section
6
covers
electrical
specifications for commercial and extended
temperature product offerings. The byte-wide Smart
3 FlashFile memory family documentation also
includes application notes and design tools which
are referenced in Appendix B.
The byte-wide Smart 3 FlashFile memory family
provides density upgrades with pinout compatibility
for the 4-, 8-, and 16-Mbit densities. The 28F004S3,
28F008S3, and 28F016S3 are high-performance
memories arranged as 512 Kbyte, 1 Mbyte, and
2 Mbyte of 8 bits. This data is grouped in eight,
sixteen, and thirty-two 64-Kbyte blocks which are
individually erasable, lockable, and unlockable in-
system. Figure 4 illustrates the memory
organization.
SmartVoltage technology enables fast factory
programming and low power designs. Specifically
designed for 3V systems, Smart 3 FlashFile
components support read operations at 2.7V (read-
only) and 3.3V V
CC
and block erase and program
operations at 3.3V and 12V V
PP
. The 12V V
PP
option renders the fastest program performance
which will increase your factory throughput. With
the 3.3V V
PP
option, V
CC
and V
PP
can be tied
together for a simple, low-power 3V design. In
addition to the voltage flexibility, the dedicated V
PP
pin gives complete data protection when V
PP
≤
V
PPLK
.
Internal V
PP
detection circuitry automatically
configures the device for optimized block erase and
program operations.
A Command User Interface (CUI) serves as the
interface between the system processor and
internal operation of the device. A valid command
sequence written to the CUI initiates device
automation. An internal Write State Machine (WSM)
automatically executes the algorithms and timings
necessary for block erase, program, and lock-bit
configuration operations.
A block erase operation erases one of the device’s
64-Kbyte blocks typically within 1.1 second
(12V V
PP
), independent of other blocks. Each block
can be independently erased 100,000 times
(1.6 million block erases per device). A block erase
suspend operation allows system software to
suspend block erase to read data from or program
data to any other block.
Data is programmed in byte increments typically
within 7.6
µs
(12V V
PP
). A program suspend
operation permits system software to read data or
execute code from any other flash memory array
location.
New Features
The byte-wide Smart 3 FlashFile memory family
maintains backwards-compatibility with Intel’s
28F008SA-L. Key enhancements include:
•
•
•
SmartVoltage Technology
Enhanced Suspend Capabilities
In-System Block Locking
They share a compatible status register, software
commands, and pinouts. These similarities enable
a clean upgrade from the 28F008SA-L to byte-wide
Smart 3 FlashFile products. When upgrading, it is
important to note the following differences:
•
Because of new feature and density options,
the devices have different device identifier
codes. This allows for software optimization.
V
PPLK
has been lowered from 6.5V to 1.5V to
support low V
PP
voltages during block erase,
program, and lock-bit configuration operations.
Designs that switch V
PP
off during read
operations should transition V
PP
to GND.
To take advantage of SmartVoltage tech-
nology, allow V
PP
connection to 3.3V.
•
•
For more details see application note
AP-625,
28F008SC Compatibility with 28F008SA
(order
number 292180)
.
PRODUCT PREVIEW
5
Real-time operating system RTOS
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