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'[PICLIST] [PIC] Pic-based dual-channel virtual sco'
2000\09\26@022550 by Robert A. LaBudde

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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?

================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: spam_OUTralTakeThisOuTspamlcfltd.com
Least Cost Formulations, Ltd.            URL: http://lcfltd.com/
824 Timberlake Drive                     Tel: 757-467-0954
Virginia Beach, VA 23464-3239            Fax: 757-467-2947

"Vere scire est per causas scire"
================================================================

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2000\09\26@031106 by Ray Gardiner

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>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 .....rayKILLspamspam@spam@dsp.com.au
mail from: dsp systems

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2000\09\26@055647 by Jamie Dainton

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Hello Robert,

Tuesday, September 26, 2000, 07:23:56, you wrote:

RAL> It is claimed this part is available from Electromail as part
RAL> # 265-465

Electromail is the UK hobby division of RS Electronics
rshttp://www.com that should help as RS are a US company (I think).

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From Jamie Dainton
Tuesday, September 26, 2000 10:44:03
The Bat! 1.46 Beta/5
Windows 98 4.10 2222

pgpspamKILLspamdainton.org.uk?subject=sendKey

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2000\09\26@111522 by Dan Michaels

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Robert A. LaBudde wrote:
>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?
>


In US, Jameco and Mouser - although Mouser never seems to
have them in stock.

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2000\09\26@125434 by Robert A. LaBudde

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At 06:11 PM 9/26/00 +1000, Ray wrote:
> >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.

Yes, but the pinout and specs have to make the PCB! So the question
becomes: "Where can I get this chip or an exact physical/electronic drop-in
replacement?"

================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: .....ralKILLspamspam.....lcfltd.com
Least Cost Formulations, Ltd.            URL: http://lcfltd.com/
824 Timberlake Drive                     Tel: 757-467-0954
Virginia Beach, VA 23464-3239            Fax: 757-467-2947

"Vere scire est per causas scire"
================================================================

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2000\09\26@140515 by Dan Michaels

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Robert A. LaBudde wrote:

>> >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.
>
>Yes, but the pinout and specs have to make the PCB! So the question
>becomes: "Where can I get this chip or an exact physical/electronic drop-in
>replacement?"
>


Did you see my post?  Jameco or Mouser.

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