AT27C1024 is a low-power, high-performance 1,048,576 bit one-time programmable read-only memory (OTP EPROM) organized 64K by 16 bits. In normal read mode operation, it requires only one 5V power supply. Any word can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states.
The AT27C1024 is a low‑power, high‑performance 1‑Megabit (64K × 16) one‑time programmable EPROM that operates from a single 5 V supply. It offers fast read access (45 ns) and is suitable for 16‑ and 32‑bit microprocessor systems.
Key features include low standby current, industrial and automotive temperature ranges, multiple JEDEC‑approved packages (40‑lead PDIP, 44‑lead PLCC, 40‑lead VSOP), rapid programming (typical 100 ps/word), and integrated product identification code for programming equipment.
| Read Access Time | 45 ns |
|---|---|
| Supply Voltage (Normal Operation) | 5 V ±10% |
| Standby Current | < 10 µA (typical) |
| Input Low Voltage (VIL) | -0.6 V |
| Input High Voltage (VIH) | 2.0 V |
The device provides a fast read access time of 45 ns.
It operates from a 5 V supply with a tolerance of ±10 %.
The EPROM is offered in 40‑lead PDIP, 44‑lead PLCC, and 40‑lead VSOP packages.
The rapid programming algorithm can program at a typical speed of 100 ps per word.