Integrated circuits, resistors, capacitors

28
Jun

ID'ing an IC from a HP calculator

From a HP calculator (HP48 IIRC), there’s a IC labeled:

[logo that looks like Epson?] JAPAN
SED1181F(in big letters) l4 (thats lowercase L then 4, but the 4 looks rather
like an A. And that’s in small letters.)
Y490 547

It’s some sort of LCD driver, AFAIK. I looked on www.datasheetlocator.com for
datasheets of this IC. No help, because I don’t know if the exact part number is
SED1181F, SED1181, SED1181FL4 or SED1181FLA.

If anybody here has a datasheet for this IC, please reply.

Thanks!

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Comment (1)




One Response to “ID'ing an IC from a HP calculator”

  1. admin says:
    June 28 at 6:27 am

    On Tue, 28 Oct 2003 00:06:33 -0200, Chaos Master <fod…@hotmail.com>
    put finger to keyboard and composed:

    >From a HP calculator (HP48 IIRC), there’s a IC labeled:

    >[logo that looks like Epson?] JAPAN
    >SED1181F(in big letters) l4 (thats lowercase L then 4, but the 4 looks rather
    >like an A. And that’s in small letters.)
    >Y490 547

    >It’s some sort of LCD driver, AFAIK. I looked on http://www.datasheetlocator.com for
    >datasheets of this IC. No help, because I don’t know if the exact part number is
    >SED1181F, SED1181, SED1181FL4 or SED1181FLA.

    >If anybody here has a datasheet for this IC, please reply.

    >Thanks!

    It’s available from http://www.freetradezone.com. Registration is
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