Mystery device

[Batz Goodfortune]

Y-ellow Tony.
	MMMm. Maplin sound about as good as Dick Smith Electronics. Or Duck Smut
as we invariably refer to them as. Only I'm sure Maplin don't supply their
CMOS complete with rusted out pins.

Or batches of dead triple5s. How 'n' hell do you kill a triple5? Short of
plugging them into a mains socket. I walked one round stuck in my shoe for
3 days one time and it still worked.

NE way.

At 12:14 PM 12/08/99 -0000, Tony Allgood wrote:

[bobbit]

>NEC
>D8279C-2
>9543X8026
>
>NEC is obviously the manuf, and the lower line is probably the date
>code, but the part number eludes me. Any ideas?

If it's a 40 pin device then it's likely a Japanese (and likely enhanced)
version of the intel 8279 Programmable Keyboard/display interface
controller. NEC make versions of many old intel chips which is why you use
to see some weird stuff pop up in PCs. Especially around the 286/386 era.
Most notably were the floppy disk controllers. D8272 which eventually
became known as D750s if memory serves.

The 8279 provides an 8 bit interface to the micro, 8X8 keyboard matrix and
an undecoded alpha/numeric display interface. These are fairly rare. You
won't find them in PC keyboards obviously. They are more or less used as
front panel interfaces where lots of buttons and lots of LEDs/LCDs are
required. At one time you'd kill to find one of these things pop up in your
porridge but now they're probably a tad on the obsolete side.

Hope this helps.

Be absolutely Icebox.

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