The AT27LV512A is a high-performance, low-power, low-voltage OTP EPROM, suitable for fast, portable systems using battery power. It features fast read access time, dual voltage range operation, low power consumption in standby mode, and rapid programming algorithm.
The AT27LV512A is a 524,288‑bit (64K × 8) one‑time programmable EPROM that operates from 3.0 V to 3.6 V or a standard 5 V ± 10 % supply. It offers fast 90 ns read access, low standby current (<1 pA typical) and a rapid programming algorithm of 100 ps/byte.
The device is supplied in JEDEC‑standard 32‑lead PLCC, 28‑lead SOIC and 28‑lead TSOP packages, with detailed pin configurations, operating modes, timing diagrams and absolute maximum ratings provided for reliable integration into portable and dual‑supply systems.
| Memory size | 524,288 bits (64K × 8) |
|---|---|
| Read access time | 90 ns |
| Supply voltage range | 3.0 V‑3.6 V (low) or 5 V ± 10 % |
| Standby current | <1 pA typical |
| Active power consumption | 18 mW at 5 MHz, 3.3 V |
| Programming speed | 100 ps/Byte (typical) |
| Operating temperature range | -40 °C to +85 °C |
| Package options | 32‑lead PLCC, 28‑lead SOIC, 28‑lead TSOP |
The device has a fast read access time of 90 ns.
It operates from 3.0 V to 3.6 V for low‑voltage mode and also supports a standard 5 V ± 10 % supply.
Typical active power consumption is 18 mW at 5 MHz with a 3.3 V supply.
It is offered in 32‑lead PLCC, 28‑lead SOIC, and 28‑lead TSOP packages.