Integrated Circuits Group
LH28F640BFN-PTTLZ1
Flash Memory
64M (4M 16)
(Model No.:
LHF64FD1)
Spec No.:
FM024001
Issue Date:
April 1, 2002
P
RELIMINARY
P
RODUCT
S
PECIFICATIONS
LHF64FD1
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. 2.41
sharp
LHF64FD1 1
PAGE
44-Lead SOP Pinout ................................................... 3
Pin Descriptions.......................................................... 4
Memory Map .............................................................. 5
Identifier Codes and OTP Address
for Read Operation ............................................. 6
OTP Block Address Map for OTP Program............... 7
Bus Operation ............................................................. 8
Command Definitions ................................................ 9
Functions of Block Lock and Block Lock-Down...... 11
Block Locking State Transitions upon
Command Write................................................. 11
Status Register Definition......................................... 12
Extended Status Register Definition ........................ 13
PAGE
1 Electrical Specifications......................................... 14
1.1 Absolute Maximum Ratings ........................... 14
1.2 Operating Conditions ...................................... 14
1.2.1 Capacitance .............................................. 15
1.2.2 AC Input/Output Test Conditions ............ 15
1.2.3 DC Characteristics ................................... 16
1.2.4 AC Characteristics
- Read-Only Operations......................... 17
1.2.5 AC Characteristics
- Write Operations ................................. 20
1.2.6 Reset Operations ...................................... 22
1.2.7 Block Erase, Full Chip Erase,
(Page Buffer) Program and
OTP Program Performance.................... 23
2 Related Document Information.............................. 24
CONTENTS
Rev. 2.41
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LHF64FD1 2
LH28F640BFN-PTTLZ1
64Mbit (4Mbit
16)
Page Mode Flash MEMORY
64M density with 16Bit I/O Interface
High Performance Reads
80/35ns 8-Word Page Mode
Low Power Operation
2.7V Read and Write Operations
Automatic Power Savings Mode Reduces I
CCR
in Static Mode
Enhanced Code + Data Storage
5
s Typical Erase/Program Suspends
OTP (One Time Program) Block
4-Word Factory-Programmed Area
4-Word User-Programmable Area
High Performance Program with Page Buffer
16-Word Page Buffer
Operating Temperature 0
C to +70C
Flexible Blocking Architecture
Eight 4K-word Parameter Blocks
One-hundred and twenty-seven 32K-word Main
Blocks
Top Parameter Location
CMOS Process (P-type silicon substrate)
Enhanced Data Protection Features
Individual Block Lock and Block Lock-Down with
Zero-Latency
All blocks are locked at power-up or device reset.
Block Erase, Full Chip Erase, (Page Buffer) Word
Program Lockout during Power Transitions
Automated Erase/Program Algorithms
3.0V Low-Power
11s/Word (Typ.)
Programming
Cross-Compatible Command Support
Basic Command Set
Common Flash Interface (CFI)
Extended Cycling Capability
Minimum 100,000 Block Erase Cycles
44-Lead SOP
ETOX
TM*
Flash Technology
Not designed or rated as radiation hardened
The product, which is Page Mode Flash memory, is a low power, high density, low cost, nonvolatile read/write storage
solution for a wide range of applications. The product can operate at V
CC
=2.7V-3.6V. Its low voltage operation capability
greatly extends battery life for portable applications.
The product provides high performance asynchronous page mode. It allows code execution directly from Flash, thus
eliminating time consuming wait states.
The memory array block architecture utilizes Enhanced Data Protection features, and provides separate Parameter and Main
Blocks that provide maximum flexibility for safe nonvolatile code and data storage.
Fast program capability is provided through the use of high speed Page Buffer Program.
Special OTP (One Time Program) block provides an area to store permanent code such as a unique number.
* ETOX is a trademark of Intel Corporation.
Rev. 2.41
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LHF64FD1 3
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44-LEAD SOP
STANDARD PINOUT
13.2mm x 28.2mm
TOP VIEW
A
19
A
18
A
17
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
CE#
GND
OE#
DQ
0
DQ
8
DQ
1
DQ
9
DQ
2
DQ
10
DQ
3
DQ
11
RST#
WE#
A
20
A
21
A
8
A
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A
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A
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A
12
A
13
A
14
A
15
A
16
DQ
15
DQ
7
DQ
14
DQ
6
DQ
13
DQ
5
DQ
12
DQ
4
V
CC
Figure 1. 44-Lead SOP Pinout
Rev. 2.41
sharp
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