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HN27C256HG - 32768-word x 8-bit CMOS UV Erasable and Programmable ROM

General Description

The Hitachi HN27C256HG is a 256-kbit ultraviolet erasable and electrically programmable ROM, featuring sub-100-ns access times.

The HN27C256HG realizes access time of 70 ns and 85 ns, employing the advanced fine process and high speed circuitry technique.

Key Features

  • High speed: Access time.

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Other Datasheets by Hitachi Semiconductor (now Renesas)

Part Number Description
HN27C256H 256K UV and OTP EPROM
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HN27C256AG 32768-word x 8-bit UV Erasable and Programmable ROM
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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HN27C256HG Series 32768-word × 8-bit CMOS UV Erasable and Programmable ROM ADE-203Maintenance only Rev. 0.0 Dec. 1, 1995 Description The Hitachi HN27C256HG is a 256-kbit ultraviolet erasable and electrically programmable ROM, featuring sub-100-ns access times. The HN27C256HG realizes access time of 70 ns and 85 ns, employing the advanced fine process and high speed circuitry technique. The timing conditions such as access time or output hold time are designed as same as our byte-wide SRAMs’, allowing to use with SRAMs on the same memory board by the same read timings. So its board design in 16-bit microprocessor systems is easy. Also, the HN27C256HG realizes faster programming time than our conventional 256-kbit EPROM by Hitachi’s Fast High-Reliability Programming Algorithm.