EN29F002A / EN29F002AN
EN29F002A / EN29F002AN
2 Megabit (256K x 8-bit) Flash Memory
FEATURES
•
5.0V ± 10% for both read/write operation
•
Read Access Time
- 45ns, 55ns, 70ns, and 90ns
•
Fast Read Access Time
- 70ns with C
load
= 100pF
- 45ns, 55ns with C
load
= 30pF
•
Sector Architecture:
One 16K byte Boot Sector, Two 8K byte
Parameter Sectors, one 32K byte and
three 64K byte main Sectors
•
Boot Block Top/Bottom Programming
Architecture
•
-
-
-
High performance program/erase speed
Byte program time: 10µs typical
Sector erase time: 500ms typical
Chip erase time: 3.5s typical
•
JEDEC standard
DATA
polling and toggle
bits feature
•
Hardware
RESET
Pin
(n/a on EN29F002AN)
•
Single Sector and Chip Erase
•
Sector Protection / Temporary Sector
Unprotect (
RESET
= V
ID
)
•
Sector Unprotect Mode
•
Embedded Erase and Program Algorithms
•
Erase Suspend / Resume modes:
Read and program another sector during
Erase Suspend Mode
•
0.23 µm triple-metal double-poly
triple-well CMOS Flash Technology
•
Low Vcc write inhibit < 3.2V
•
100K endurance cycle
•
Package Options
- 32-pin PDIP
- 32-pin PLCC
- 32-pin TSOP (Type 1)
•
Commercial and Industrial Temperature
Ranges
•
Low Standby Current
- 1µA CMOS standby current-typical
- 1mA TTL standby current
•
Low Power Active Current
- 30mA active read current
- 30mA program / erase current
•
JEDEC Standard program and erase
commands
GENERAL DESCRIPTION
The EN29F002A / EN29F002AN is a 2-Megabit, electrically erasable, read/write non-volatile flash memory.
Organized into 256K words with 8 bits per word, the 2M of memory is arranged in seven sectors (with
top/bottom configuration), including one 16K Byte Boot Sector, two 8K Byte Parameter sectors, and four main
sectors (one 32K Byte and three 64K Byte). Any byte can be programmed typically at 10µs. The EN29F002A /
EN29F002AN features 5.0V voltage read and write operation. The access times are as fast as 45ns to
eliminate the need for WAIT states in high-performance microprocessor systems.
The EN29F002A / EN29F002AN has separate Output Enable (
OE
), Chip Enable (
CE
), and Write
Enable (
W E
) controls which eliminate bus contention issues. This device is designed to allow
either single sector or full chip erase operation, where each sector can be individually protected
against program/erase operations or temporarily unprotected to erase or program. The device can
sustain
a
minimum
of
100K
program/erase
cycles
on
each
sector.
This Data Sheet may be revised by subsequent versions
1
or modifications due to changes in technical specifications.
©2003 Eon Silicon Solution, Inc., www.essi.com.tw
Rev. A, Issue Date: 2003/03/26
EN29F002A / EN29F002AN
TABLE 3. OPERATING MODES
2M FLASH USER MODE TABLE
USER MODE
CE
WE
X
X
H
H
H
H
H
L
L
L
X
OE
X
X
L
H
L
L
L
VID
VID
H
X
RESET
A9
X
X
A9
X
VID
VID
VID
VID
VID
A9
X
A8
X
X
A8
X
L/H
L/H
X
X
X
A8
X
A6
X
X
A6
X
L
L
L
L
H
A6
X
A1
X
X
A1
X
L
L
H
X
H
A1
X
A0
X
X
A0
X
L
H
L
X
L
A0
X
Ax/y
X
X
Ax/y
X
X
X
X
X
X
Ax/y
X
DQ(0-7)
HI-Z
HI-Z
DQ(0-7)
HI-Z
MANUFACTURER
ID
DEVICE ID(T/B)
01h(protected)
00h(unprotected)
X
X
DIN(0-7)
X
(n/a on EN29F002AN)
RESET
X
H
L
L
L
L
L
L
L
L
X
L
H
H
H
H
H
H
H
H
H
VID
STANDBY
READ
OUTPUT DISABLE
READ
MANUFACTURER ID
READ DEVICE ID
VERIFY SECTOR
PROTECT
ENABLE SECTOR
PROTECT
SECTOR UNPROTECT
WRITE
TEMPORARY SECTOR
UNPROTECT
NOTES:
1) L = V
IL
, H = V
IH
, V
ID
= 11.0V
±
0.5V
2) X = Don’t care, either V
IH
or V
IL
TABLE 4. DEVICE IDENTIFICTION
2M FLASH MANUFACTURER/DEVICE ID TABLE
A8
READ
MANUFACTURER ID
READ
*
MANUFACTURER ID
READ DEVICE ID
(Top Architecture)
READ DEVICE ID
(Top Architecture)
READ DEVICE ID
(Bottom Architecture)
READ DEVICE ID
(Bottom Architecture)
*
*
A6
L
L
L
L
L
L
A1
L
L
L
L
L
L
A0
L
L
H
H
H
H
L
H
L
H
L
H
DQ(7-0)
HEX
CONTINUATION MANUFACTURER ID
7F
MANUFACTURER ID
1C
CONTINUATION DEVICE ID
7F
DEVICE ID
92
CONTINUATION DEVICE ID
7F
DEVICE ID
97
NOTES:
These modes (A8=H) are recommended for Manufacture/Device ID check.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
5
©2003 Eon Silicon Solution, Inc., www.essi.com.tw
Rev. A, Issue Date: 2003/03/26
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