This document introduces the features and characteristics of the Atmel AT27C080 chip, including fast read access time, low-power CMOS operation, JEDEC standard packages, 5V ± 10% supply, high-reliability CMOS technology, rapid programming algorithm, CMOS and TTL compatible inputs and outputs, integrated product identification code, industrial temperature range, green (lead/halide-free) packaging options, etc.
The AT27C080 is a low‑power, high‑performance 8‑Mbit (1M × 8) one‑time programmable EPROM. It operates from a single 5 V supply and offers fast 90 ns read access, making it suitable for high‑speed microprocessor systems. The device is available in 32‑lead PLCC, PDIP, and TSOP packages and includes features such as integrated product identification, ESD protection, and latchup immunity.
The datasheet details electrical characteristics, timing parameters, programming algorithms, and recommended external components for stable operation. It also provides mechanical dimensions, pin‑out diagrams, and absolute maximum ratings to aid designers in integrating the part into their circuits.
| Memory size | 8,388,608 bits (1 M × 8) |
|---|---|
| Supply voltage | 5 V + 10 % |
| Read access time | 90 ns |
| Active current (5 MHz) | 40 mA max |
| Operating temperature (case) | -40 °C to 85 °C |
| Package options | 32‑lead PLCC, 32‑lead PDIP, 32‑lead TSOP |
| ESD protection | 2000 V |
| Latchup immunity | 200 mA |
| Programming speed (typical) | 50 µs/Byte |
The AT27C080 provides a fast read access time of 90 ns.
It operates from a 5 V supply with a tolerance of ±10 %.
The device is offered in 32‑lead PLCC, 32‑lead PDIP, and 32‑lead TSOP packages.
It is rated for industrial case temperatures from –40 °C to 85 °C.