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 VCC = 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 VCC = 3.3V, the AT27LV020A consumes less than one fifth the power of a standard 5V EPROM. Standby mode supply current is typically less than 1 µA, making the AT27LV020A an ideal choice for battery-powered applications.
The AT27LV020A is a 2‑Megabit (256 K × 8) one‑time programmable EPROM that operates from a single 3.0 V‑3.6 V supply or standard 5 V ±10 % range. It offers fast read access (120 ns) and low standby current (<1 µA at 3.3 V), making it suitable for battery‑powered portable systems.
The device is available in JEDEC‑standard 32‑lead PLCC, TSOP, and VSOP packages and features two‑line control (CE, OE). It includes a rapid programming algorithm (100 ps/Byte) and an integrated product identification code for easy programming equipment setup.
| Read Access Time | 120 ns |
|---|---|
| Supply Voltage Range | 3.0 V‑3.6 V (low) or 5 V ± 10 % |
| Active Power Consumption | 18 mW at 5 MHz |
| Programming Speed | 100 ps/Byte (typical) |
It stores 2 Megabits, organized as 256 K × 8 bits.
The device is rated for industrial temperatures from –40 °C to +85 °C.
The rapid programming algorithm can program at about 100 ps per byte.