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Atmel AT27C256R Datasheet
The AT27C256R is a low‑power, high‑performance 256‑Kbit one‑time programmable EPROM offered by Atmel. It operates from a single 5 V supply and provides fast read access with less than 45 ns access time, making it suitable for high‑speed microprocessor systems.
Key features include a rapid programming algorithm (typical 100 µs/byte), industrial and automotive temperature ranges, multiple JEDEC‑standard package options, and an integrated product identification code for easy programming equipment selection. The datasheet details electrical characteristics, pin configurations, timing diagrams, and absolute maximum ratings for designers.
Atmel AT27C256R specifications
| Read Access Time | 45 ns |
|---|---|
| Supply Voltage | 5 V ±10 % |
| Programming Time | 100 µs/byte (typical) |
| Package Options | 28‑lead PDIP, 32‑lead PLCC, 28‑lead TSOP, SOIC |
Source: Atmel AT27C256R Datasheet
All Atmel AT27C256R documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum read access time of the AT27C256R?
The device provides a read access time of 45 ns.
What supply voltage does the AT27C256R require?
It operates from a 5 V supply with a ±10 % tolerance.
What is the read access time of the AT27C256R?
The device provides a read access time of 45 ns.
What supply voltage does the AT27C256R require?
It operates from a 5 V supply with a ±10 % tolerance.