AT27LV256A Datasheet, PDF (1/9 Pages) ATMEL Corporation – 256K 32K x 8 Low Voltage OTP CMOS EPROM

AT27LV256A
Features
Fast Read Access Time - 70 ns
•• Dual Voltage Range Operation
Low Voltage Power Supply Range, 3.0V to 3.6V
or Standard 5V ± 10% Supply Range
Pin Compatible with JEDEC Standard AT27C256
•• Low Power CMOS Operation
20 µA max. (less than 1 µA typical) Standby for VCC = 3.6V
29 mW max. Active at 5 MHz for VCC = 3.6V
• JEDEC Standard Packages
32-Lead PLCC
28-Lead 330-mil SOIC
28-Lead TSOP
• High Reliability CMOS Technology
2,000V ESD Protection
200 mA Latchup Immunity
• ^{Rapid™ Programming Algorithm - 100 µs/byte (typical)}
• ^{CMOS and TTL Compatible Inputs and Outputs}
JEDEC Standard for LVTTL
Integrated Product Identification Code
•• _{Commercial and Industrial Temperature Ranges}
Description
The AT27LV256A is a high performance, low power, low voltage 262,144 bit one-time
programmable read only memory (OTP EPROM) organized as 32K by 8 bits. It re-
quires only one supply in the range of 3.0V to 3.6V in normal read mode operation,
making it ideal for fast, portable systems using battery power.
Atmel’s innovative design techniques provide fast speeds that rival 5V parts while
keeping the low power consumption of a 3.3V supply. At VCC = 3.0V, any byte can be
accessed in less than 70 ns. With a typical power dissipation of only 18 mW at 5 MHz
and VCC = 3.3V, the AT27LV256A consumes less than one fifth the power of a stand-
ard 5V EPROM.
Pin Configurations
SOIC Top View
(continued)
Pin Name Function
A0 - A14
Addresses
O0 - O7
Outputs
CE
Chip Enable
OE
Output Enable
NC
No Connect
PLCC Top View
256K (32K x 8)
Low Voltage
OTP
CMOS EPROM
AT27LV256A
TSOP Top View
Type 1
Note:PLCC Package Pins 1 and 17
are DON’T CONNECT.
0547A
3-75