PRODUCT PREVIEW
8-MBIT (512K X 16, 1024K X 8)
SmartVoltage BOOT BLOCK
FLASH MEMORY FAMILY
28F800BV-T/B, 28F800CV-T/B, 28F008BV-T/B
28F800CE-T/B, 28F008BE-T/B
Intel SmartVoltage Technology
5V or 12V Program/Erase
2.7V, 3.3V or 5V Read Operation
Program Time Reduced 60% at
12V V
PP
Very High Performance Read
5V: 70/120 ns Max. Access Time,
30/40 ns Max. Output Enable Time
3V: 120/150 ns Max Access
65 ns Max. Output Enable Time
2.7V: 120 ns Max Access
65 ns Max. Output Enable Time
Low Power Consumption
Max 60 mA Read Current at 5V
Max 30 mA Read Current at 2.7–3.6V
x8/x16-Selectable Input/Output Bus
28F800 for High Performance 16- or
32-bit CPUs
x8-Only Input/Output Architecture
28F008B for Space-Constrained
8-bit Applications
Optimized Array Blocking Architecture
One 16-KB Protected Boot Block
Two 8-KB Parameter Blocks
One 96-KB Main Block
Seven 128-KB Main Blocks
Top or Bottom Boot Locations
Absolute Hardware-Protection for Boot
Block
Software EEPROM Emulation with
Parameter Blocks
Extended Temperature Operation
–40°C to +85°C
Extended Cycling Capability
100,000 Block Erase Cycles
(Commercial Temperature)
10,000 Block Erase Cycles
(Extended Temperature)
Automated Word/Byte Write and Block
Erase
Industry-Standard Command User
Interface
Status Registers
Erase Suspend Capability
SRAM-Compatible Write Interface
Automatic Power Savings Feature
1 mA Typical I
CC
Active Current in
Static Operation
Reset/Deep Power-Down Input
0.2 µA I
CC
Typical
Provides Reset for Boot Operations
Hardware Data Protection Feature
Erase/Write Lockout during Power
Transitions
Industry-Standard Surface Mount
Packaging
40-Lead TSOP
44-Lead PSOP: JEDEC ROM
Compatible
48-Lead TSOP
Footprint Upgradeable from 2-Mbit and
4-Mbit Boot Block Flash Memories
ETOX™ IV Flash Technology
Information in this document is provided solely to enable use of Intel products. Intel assumes no liability whatsoever, including infringement of any
patent or copyright, for sale and use of Intel products except as provided in Intel's Terms and Conditions of Sale for such products. Information
contained herein supersedes previously published specifications on these devices from Intel.
© INTEL CORPORATION 1995
September 1995
Order Number: 290539-002
8-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY
CONTENTS
PAGE
1.0 PRODUCT FAMILY OVERVIEW . 3
1.1 New Features in the
SmartVoltage Products.....................3
1.2 Main Features................................... 4
1.3 Applications ..................................... 7
1.4 Pinouts..............................................8
1.5 Pin Descriptions .............................10
2.0 PRODUCT DESCRIPTION ........... 13
2.1 Memory Organization....................13
2.1.1 Blocking................................... 13
3.0 PRODUCT FAMILY PRINCIPLES
OF OPERATION............................. 12
3.1 Bus Operations...............................16
3.2 Read Operations.............................16
3.2.1 Read Array...............................16
3.2.2 Intelligent Identifiers................14
3.3 Write Operations ............................19
3.3.1 Command User Interface.......... 19
3.3.2 Status Register..........................17
3.3.3 Program Mode..........................18
3.3.4 Erase Mode ..............................27
3.4 Boot Block Locking.......................19
3.4.1 V
PP
= V
IL
for Complete
Protection.................................. 28
3.4.2 WP# = V
IL
for Boot Block
Locking..................................... 28
3.4.3 RP# = V
HH
or WP# = V
IH
for
Boot Block Unlocking..............29
PAGE
3.5 Power Consumption....................... 33
3.5.1 Active Power............................ 33
3.5.2 Automatic Power Savings........ 33
3.5.3 Standby Power......................... 33
3.5.4 Deep Power-Down Mode......... 33
3.6 Power-Up/Down Operation............ 34
3
3.6.1 RP# Connected to System Reset 4
3.6.2 V
CC
, V
PP
and RP# Transtions ... 34
3.7 Power Supply Decoupling.............. 34
3.7.1 V
PP
Trace on Printed Circuit
Boards ...................................... 35
4.0 ABSOLUTE MAXIMUM RATINGS 36
5.0 COMMERCIAL OPERATING
CONDITIONS ................................. 37
5.1 Applying V
CC
Voltages .................. 37
5.2 DC Characteristics.......................... 38
5.3 AC Characteristics.......................... 32
6.0 EXTENDED OPERATING
CONDITIONS ................................. 57
6.1 Applying V
CC
Voltages .................. 57
6.2 DC Characteristics.......................... 58
6.3 AC Characteristics.......................... 67
7.0 ADDITIONAL INFORMATION ... 75
7.1 Ordering Information..................... 75
7.2 References...................................... 77
7.3 Revision History ............................ 77
2
PRODUCT PREVIEW
8-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY
PRODUCT FAMILY
OVERVIEW
This datasheet contains the specifications
for the two branches of products in the
SmartVoltage 8-Mbit boot block flash
memory family: the -BE/CE suffix
products feature a low V
CC
operating range
of 2.7–3.6V; the -BV/CV suffix products
offer
3.0–3.6V operation. Both BE/CE and
BV/CV products also operate at 5V for
high-speed access times. Throughout this
datasheet, the 28F800 refers to all x8/x16
8-Mbit products, while 28F008B refers to
all x8 8-Mbit boot block products (but not
to the 28F008SA FlashFile™ Memory).
Also, the term “2.7V” generally means the
full voltage range 2.7–3.6V. Section 1
provides an overview of the flash memory
family including applications, pinouts and
pin descriptions. Sections 2 and 3 describe
the memory organization and operation for
these products. Finally, Sections 4, 5 and 6
contain the family’s operating
specifications.
1.1
New Features in the
SmartVoltage Products
The new 8-Mbit SmartVoltage boot block
flash memory family provides a
convenient density upgrade path from the
2-Mbit and 4-Mbit boot block products.
The 8-Mbit boot block functions similarly
to lower density boot block products in
both command sets and operation,
providing similar pinouts to ease density
upgrades.
1.0
To upgrade from lower density -BX/BL-
suffix 12V program products, please note
the following differences and guidelines:
•
WP# pin has replaced DU (Don’t Use)
pin #12 in the 40-lead TSOP package.
In the 44-lead PSOP, DU pin #2 is
replaced with A
18
(see Figure 1 and
Section 3.4 for details). Connect the
WP# pin to control signal or to V or
CC
GND (in this case, a logic-level signal
can be placed on DU pin #12 for 40-
lead TSOP). See Tables 2 and 9 to see
how the WP# pin works.
5V program/erase operation has been
added. If switching V
PP
for write
protection, switch to GND (not 5V) for
complete write protection. To take
advantage of 5V write-capability, allow
for connecting 5V to V
PP
and
disconnecting 12V from V
PP
line.
•
Enhanced circuits optimize low V
CC
performance, allowing operation down
to V
CC
= 2.7V (using the BE/CE
products).
To upgrade from lower density
SmartVoltage boot block products, the
similar pinouts in the 40-lead and 48-lead
TSOP packages provide easy upgrades by
adding extra address lines (see Figures1
and 3). In the 44-lead TSOP, the WP# pin
on the 2-Mbit and 4-Mbit BV parts
becomes A
18
, removing the capability to
unlock the boot block with a logic-level
signal in this package
only.
The boot block
can still be unlocked with 12V on RP# (see
Figure 2 and Section 3.4 for details).
•
PRODUCT PREVIEW
3
8-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY
Table 1. SmartVoltage Provides Total Voltage Flexibility
Product
Name
28F008BV-
T/B
28F800BV-
T/B
28F800CV-
T/B
28F008BE-
T/B
28F800CE-
T/B
Bus
Width
x8
x8 or x16
x8 or x16
x8
x8 or x16
√
√
2.7–3.6V
V
CC
3.3
±
0.3V
√
√
√
5V
±
5%
5V
±
10%
√
√
√
√
√
V
PP
5
±
10%V 12
±
5%V
√
√
√
√
√
√
√
√
√
√
4
PRODUCT PREVIEW
8-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY
1.2
Main Features
Intel’s SmartVoltage technology is the most
flexible voltage solution in the flash
industry, providing two discrete voltage
supply pins: V
CC
for read operation, and V
PP
for program and erase operation. Discrete
supply pins allow system designers to use
the optimal voltage levels for their design.
All products (28F800BV/CV, 28F008BV,
28F800CE and 28F008BE) provide
program/erase capability at 5V or 12V. The
28F800BV/CV and 28F008BV allows reads
with V
CC
at 3.3
±
0.3V or 5V, while the
28F800CE and 28F008BE allows reads
with V
CC
at 2.7–3.6V or 5V. Since many
designs read from the flash memory a large
percentage of the time, 2.7V V
CC
operation
can provide great power savings. If read
performance is an issue, however, 5V V
CC
provides faster read access times. For
program and erase operations, 5V V
PP
operation eliminates the need for in system
voltage converters, while 12V V
PP
operation
provides faster program and erase for
situations where 12V is available, such as
manufacturing or designs where 12V is in-
system. For design simplicity, however, just
hook up V
CC
and V
PP
to the same 5V ± 10%
source.
The 28F800/28F008B boot block flash
memory family is a high-performance,
8-Mbit (8,388,608 bit) flash memory family
organized as either
512 Kwords of 16 bits each (28F800 only)
or
1024 Kbytes of 8 bits each (28F800 and
28F008B).
Separately erasable blocks, including a
hardware-lockable boot block (16,384
bytes), two parameter blocks (8,192 bytes
each) and main blocks (one block of 98,304
bytes and seven blocks of 131,072 bytes)
define the boot block flash family
architecture. See Figures 4 and 5 for
memory maps. Each block can be
independently erased and programmed
100,000 times at commercial temperature or
10,000 times at extended temperature.
The boot block is located at either the top
(denoted by
-T
suffix) or the bottom (-B
suffix) of the address map in order to
accommodate different microprocessor
protocols for boot code location. The
hardware-lockable boot block provides
complete code security for the kernel code
required for system initialization. Locking
and unlocking of the boot block is
controlled by WP# and/or RP# (see Section
3.4 for details).
PRODUCT PREVIEW
5
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