AT27LV020A_07 Datasheet, PDF (1/15 Pages) ATMEL Corporation – 2-Megabit (256K x 8) Low Voltage OTP EPROM

Features
• Fast Read Access Time – 120 ns, see AT27BV020 for Faster Speeds
• Dual Voltage Range Operation
– Low Voltage Power Supply Range, 3.0V to 3.6V
or Standard 5V ± 10% Supply Range
• Compatible with JEDEC Standard AT27C020
• Low Power CMOS Operation
– 20 µA Max (Less than 1 µA Typical) Standby for V_CC = 3.6V
– 29 mW Max Active at 5 MHz for V_CC = 3.6V
• JEDEC Standard Packages
– 32-lead PLCC
– 32-lead TSOP
– 32-lead VSOP
• High Reliability CMOS Technology
– 2,000V ESD Protection
– 200 mA Latchup Immunity
• Rapid Programming Algorithm – 100 µs/Byte (Typical)
• Two-line Control
• CMOS and TTL Compatible Inputs and Outputs
– JEDEC Standard for LVTTL
• Integrated Product Identification Code
• Industrial Temperature Range
• Green (Pb/Halide-free) Packaging Option
2-Megabit
(256K x 8)
Low Voltage
OTP EPROM
AT27LV020A
1. Description
The AT27LV020A is a high-performance, low-power, low-voltage 2,097,152 bit one-
time programmable read-only memory (OTP EPROM) organized as 256K by 8 bits. It
requires only one supply in the range of 3.0 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 3V supply. At V_CC = 3.0V, any byte can be
accessed in less than 120 ns. With a typical power dissipation of only 18 mW at 5 MHz
and V_CC = 3.3V, the AT27LV020A consumes less than one fifth the power of a stan-
dard 5V EPROM. Standby mode supply current is typically less than 1 µA at 3.3V.
The AT27LV020A is available in industry-standard JEDEC approved one-time pro-
grammable (OTP) plastic PLCC, TSOP, and VSOP. All devices feature two-line
control (CE, OE) to give designers the flexibility to prevent bus contention.
The AT27LV020A operating with V_CC at 3.0V produces TTL level outputs that are
compatible with standard TTL logic devices operating at V_CC = 5.0V. The device is
also capable of standard 5-volt operation making it ideally suited for dual supply range
systems or card products that are pluggable in both 3-volt and 5-volt hosts.
Atmel's AT27LV020A has additional features to ensure high quality and efficient pro-
duction use. The Rapid Programming Algorithm reduces the time required to program
the part and guarantees reliable programming. Programming time is typically only
100 µs/byte. The Integrated Product Identification Code electronically identifies the
device and manufacturer. This feature is used by industry standard programming
equipment to select the proper programming algorithms and voltages. The
AT27LV020A programs exactly the same way as a standard 5V AT27C020 and uses
the same programming equipment.
0549G–EPROM–12/07