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參數資料
| 型號： | EN27LV020B-90 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2Megabit Low Voltage EPROM (256K x 8) |
| 中文描述： | 2Megabit低電壓存儲器（256K × 8） |
| 文件頁數： | 1/13頁 |
| 文件大小： | 96K |
| 代理商： | EN27LV020B-90 |
4800 Great America Parkway Ste 202
Santa Clara, CA. 95054
Tel: 408-235-8680
Fax: 408-235-8685
Preliminary
1
EN27LV020 / EN27LV020B
FEATURES
Read Access Time
:
-
90ns,
-
120ns,
-
150ns, -200ns
Single +3.3V Power Supply
-Regulated power supply 3.0V - 3.6V
(EN27LV020
)
-Unregulated power supply 2.7V - 3.6V
(EN27LV020B for battery operated systems)
Programming Voltage +12.75V
QuikRite
TM
Programming Algorithm
Typical programming time 20
μ
s
Low Power CMOS Operation
1
μ
A Standby (Typical)
15mA Operation (Max.)
CMOS- and TTL-Compatible I/O
High-Reliability CMOS Technology
Latch-Up Immunity to 100mA
from -1V to V
CC
+ 1V
Two-Line Control (
OE
&
CE
)
Standard Product Identification Code
JEDEC Standard Pinout
32-pin PDIP
32-pin PLCC
32-pin TSOP (Type 1)
Commercial and Industrial Temperature
Ranges
GENERAL DESCRIPTION
The EN27LV020 / EN27LV020B is a low-voltage, low-power 2-Megabit, 3.3V one-time-
programmable (OTP) read-only memory (EPROM). Organized into 256K words with 8 bits per
word, it features QuikRite
TM
single-address location programming, typically at 20
μ
s per byte. Any
byte can be accessed in less than 90ns. The EN27LV020 / EN27LV020B has separate Output
Enable (OE) and Chip Enable (CE) controls which eliminate bus contention issues. The
EN27LV020 has a Vcc tolerance range of 3.0V to 3.6 V, making it suitable for use in systems
that have regulated power supplies. The EN27LV020B has a Vcc tolerance range of 2.7 V to
3.6V, making it an ideal device for battery operated systems.
FIGURE 1. PDIP
Pin Name
A0-A17
DQ0-DQ7
CE
OE
PGM
Function
Addresses
Outputs
Chip Enable
Output Enable
Program Strobe
A17
EN27LV020 / EN27LV020B
2Megabit Low Voltage
EPROM (256K x 8)
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