P
RODUCT
S
PECIFICATIONS
®
Integrated Circuits Group
LH28F008SCT-L85
Flash Memory
8M (1MB × 8)
(Model No.: LHF08CH1)
Spec No.: EL104027C
Issue Date: April 24, 2000
sharp
LHF08CH1
●Handle
this document carefully for it contains material protected by international
copyright law. Any reproduction, full or in part, of this material is prohibited without the
express written permission of the company.
●When
using the products covered herein, please observe the conditions written herein
and the precautions outlined in the following paragraphs. In no event shall the company
be liable for any damages resulting from failure to strictly adhere to these conditions and
precautions.
(1) The products covered herein are designed and manufactured for the following
application areas. When using the products covered herein for the equipment listed
in Paragraph (2), even for the following application areas, be sure to observe the
precautions given in Paragraph (2). Never use the products for the equipment listed
in Paragraph (3).
•Office
electronics
•Instrumentation
and measuring equipment
•Machine
tools
•Audiovisual
equipment
•Home
appliance
•Communication
equipment other than for trunk lines
(2) Those contemplating using the products covered herein for the following equipment
which demands high reliability, should first contact a sales representative of the
company and then accept responsibility for incorporating into the design fail-safe
operation, redundancy, and other appropriate measures for ensuring reliability and
safety of the equipment and the overall system.
•Control
and safety devices for airplanes, trains, automobiles, and other
transportation equipment
•Mainframe
computers
•Traffic
control systems
•Gas
leak detectors and automatic cutoff devices
•Rescue
and security equipment
•Other
safety devices and safety equipment,etc.
(3) Do not use the products covered herein for the following equipment which demands
extremely high performance in terms of functionality, reliability, or accuracy.
•Aerospace
equipment
•Communications
equipment for trunk lines
•Control
equipment for the nuclear power industry
•Medical
equipment related to life support, etc.
(4) Please direct all queries and comments regarding the interpretation of the above
three Paragraphs to a sales representative of the company.
●Please
direct all queries regarding the products covered herein to a sales representative
of the company.
Rev. 1.3
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LHF08CH1
1
CONTENTS
PAGE
1.0 INTRODUCTION
................................................... 3
1.1 New Features...................................................... 3
1.2 Product Overview ................................................ 3
2.0 PRINCIPLES OF OPERATION
............................. 7
2.1 Data Protection ................................................... 7
3.0 BUS OPERATION.................................................
8
3.1 Read ................................................................... 8
3.2 Output Disable .................................................... 8
3.3 Standby ............................................................... 8
3.4 Deep Power-Down .............................................. 8
3.5 Read Identifier Codes Operation ......................... 9
3.6 Write.................................................................... 9
4.0 COMMAND DEFINITIONS
.................................... 9
4.1 Read Array Command....................................... 12
4.2 Read Identifier Codes Command ...................... 12
4.3 Read Status Register Command....................... 12
4.4 Clear Status Register Command....................... 12
4.5 Block Erase Command...................................... 12
4.6 Byte Write Command ........................................ 13
4.7 Block Erase Suspend Command....................... 13
4.8 Byte Write Suspend Command ......................... 14
4.9 Set Block and Master Lock-Bit Commands ....... 14
4.10 Clear Block Lock-Bits Command..................... 15
8.0 PACKAGE AND PACKING SPECIFICATIONS
..41
7.0 ADDITIONAL INFORMATION
.............................40
7.1 Ordering Information ..........................................40
6.0 ELECTRICAL SPECIFICATIONS........................25
6.1 Absolute Maximum Ratings ...............................25
6.2 Operating Conditions .........................................25
6.2.1 Capacitance .................................................25
6.2.2 AC Input/Output Test Conditions ..................26
6.2.3 DC Characteristics........................................27
6.2.4 AC Characteristics - Read-Only Operations .29
6.2.5 AC Characteristics - Write Operations..........32
6.2.6 Alternative CE#-Controlled Writes ................35
6.2.7 Reset Operations .........................................38
6.2.8 Block Erase, Byte Write and Lock-Bit
Configuration Performance...........................39
PAGE
5.0 DESIGN CONSIDERATIONS
..............................23
5.1 Three-Line Output Control .................................23
5.2 RY/BY# and Block Erase, Byte Write and Lock-Bit
Configuration Polling...........................................23
5.3 Power Supply Decoupling ..................................23
5.4 V
PP
Trace on Printed Circuit Boards ..................23
5.5 V
CC
, V
PP
, RP# Transitions.................................24
5.6 Power-Up/Down Protection................................24
5.7 Power Dissipation ..............................................24
Rev. 1.3
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LHF08CH1
2
LH28F008SCT-L85
8M-BIT (1MB x 8)
SmartVoltage Flash MEMORY
■
SmartVoltage Technology
2.7V(Read-Only), 3.3V or 5V V
CC
3.3V, 5V or 12V V
PP
■
High-Performance Read Access Time
85ns(5V±0.25V), 90ns(5V±0.5V),
120ns(3.3V±0.3V), 150ns(2.7V-3.6V)
■
Operating Temperature
0°C to +70°C
■
High-Density Symmetrically-Blocked
Architecture
Sixteen 64K-byte Erasable Blocks
■
Low Power Management
Deep Power-Down Mode
Automatic Power Savings Mode
Decreases I
CC
in Static Mode
■
Enhanced Data Protection Features
Absolute Protection with V
PP
=GND
Flexible Block Locking
Block Erase/Byte Write Lockout
during Power Transitions
■
Automated Byte Write and Block Erase
Command User Interface
Status Register
■
Enhanced Automated Suspend Options
Byte Write Suspend to Read
Block Erase Suspend to Byte Write
Block Erase Suspend to Read
■
Extended Cycling Capability
100,000 Block Erase Cycles
1.6 Million Block Erase Cycles/Chip
■
SRAM-Compatible Write Interface
■
Industry-Standard Packaging
40-Lead TSOP
■
ETOX
TM*
Nonvolatile Flash Technology
■
CMOS Process
(P-type silicon substrate)
■
Not designed or rated as radiation
hardened
SHARP’s LH28F008SCT-L85 Flash memory with SmartVoltage technology is a high-density, low-cost, nonvolatile,
read/write storage solution for a wide range of applications. Its symmetrically-blocked architecture, flexible voltage
and extended cycling provide for highly flexible component suitable for resident flash arrays, SIMMs and memory
cards. Its enhanced suspend capabilities provide for an ideal solution for code + 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 LH28F008SCT-L85 offers 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.
The LH28F008SCT-L85 is manufactured on SHARP’s 0.38µm ETOX
TM
process technology. It come in
industry-standard package: the 40-lead TSOP, ideal for board constrained applications. Based on the 28F008SA
architecture, the LH28F008SCT-L85 enables quick and easy upgrades for designs demanding the state-of-the-art.
*ETOX is a trademark of Intel Corporation.
Rev. 1.3
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