>I obtained a board for the Everyday Practical Electronics project of a
>low-speed dual-channel digital oscilloscope.
>
>Unfortunately, the project calls for a NEC uPD43256BCZ-70LL (equiv. to
>TC55257DPL). It is claimed this part is available from Electromail as part
># 265-465.
>
>This appears to be a UK electronics supply company.
>
>Does anyone have any advice on how to obtain one of these chips?

From the part number it looks like it's a 32kx8 static ram, almost any
32Kx8 static ram, 70ns or faster would probably work.

Ray Gardiner ray@dsp.com.au
mail from: dsp systems

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