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PA2AGA > PACDIG 04.06.00 21:18l 224 Lines 5767 Bytes #-9430 (0) @ EU
BID : PR_2000_140B
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Subj: PacketRadioDigest 2000/140B
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Sent: 000604/1635Z @:PI8HGL.#ZH1.NLD.EU #:47582 [Den Haag] FBB $:PR_2000_140B
From: PA2AGA@PI8HGL.#ZH1.NLD.EU
To : PACDIG@EU
Date: Sat, 03 Jun 00 14:51:28 MET
Message-Id: <pr_2000_140B>
From: pa2aga@pe1mvx.ampr.org
To: pr_broadcast@pa2aga.ampr.org
X-BBS-Msg-Type: B
such as
> > > Hitachi HY628100A LLP-70). It is even less expensive.
> > >
> > > Does anyone know what the difference is between the S628128-70L chip
and the
> > > S628128-70LL chip??
> > >
> > > Can I use the S628128-70LL in the KPC-3??
> >
> > Did you try Hitachi's web site? I bet the only difference is power
consumption
> > (as in current drain).
>
> I'd be a little cautious, since there are more and more 3.3V chips out
these days
> that might not tolerate 5V.
>
> --
> Dana K6JQ DoD #j
> dana@source.net
>
>
------------------------------
Date: Fri, 2 Jun 2000 12:54:51 -0400
From: "Rob" <Pse@NoEmail.Com>
Subject: Help -- 128 KB SRAM Chip
Many thanks for the link.
I will use the Hyundi SRAM chip. It is about half the price of most
compatible SRAM chips.
It costs less than $10 US.
73's
Rob
"Rick Haub" <rhaub@midwestmicro-tek.com> wrote in message
news:3937C9E8.121A443C@midwestmicro-tek.com...
> The HY628100A is not a Hitachi part but a Hyundai part. Go here for a PDF
data
> sheet.
>
> http://kcs.hei.co.kr/models/sram/sramcomp/1M/HY628100B.PDF
>
> This part only comes in the SOP and TSOP-1 package (according to Hyundai).
I'm
> assuming that your's is in a plastic DIP package? If so you can get a
similar
> part from BG micro for cheep.
>
> Rick KC0GIX
>
> Rob wrote:
>
> > Hi,
> >
> > I would like to upgrade the static RAM (SRAM) chip in my KPC-3.
> >
> > I need a SRAM chip (part number S628128-70L).
> > They are sold out in this area. There are on back order -- probably at
> > least 4 weeks before they show up. KANTRONICS sells them but they are
way
> > TOO expensive. Talk about a mark-up!
> >
> > I can buy a 128 KB SRAM low-low power chip (part number S628128-70LL
such as
> > Hitachi HY628100A LLP-70). It is even less expensive.
> >
> > Does anyone know what the difference is between the S628128-70L chip and
the
> > S628128-70LL chip??
> >
> > Can I use the S628128-70LL in the KPC-3??
> >
> > 73's
> > Rob
>
------------------------------
Date: Fri, 2 Jun 2000 12:58:04 -0400
From: "Rob" <Pse@NoEmail.Com>
Subject: Help -- 128 KB SRAM Chip
Hi Randy,
I just found out that the chip is a Hyundai chip NOT an Hitachi chip.
Details are at http://kcs.hei.co.kr/models/sram/sramcomp/1M/HY628100B.PDF
You were very close. The standby current in the Hyundai chip is 20 ua. It
should work great with a KPC-3! It also costs a lot less.
73's
Rob
"Randall Gawtry" <rgawtry@timewave.com> wrote in message
news:8h8hjq$th$1@newsfeed.minn.net...
> Rob,
> I checked in some of our archive Hitachi data books. While I didn't find
the
> precise part you mentioned, generally Hitachi medium speed SRAM with an LL
> suffix is low power standby current (spec'ed at 15 uA vs. 50 uA normal).
We
> have used this type of SRAM in various projects over the years and have
had no
> problem with the LL or equivalent version from any manufacturer. (Backup
> batteries last longer and resetting the SRAM to all zeros by pulling the
> battery may take a lot longer!)
> Most ICs are in very short supply at this point, so you will find problems
> obtaining many parts at low prices with fast delivery.
>
> 73,
> Randy Gawtry
> Timewave Technology Inc.
>
>
> In article <5BDZ4.4776$qS3.12347@tor-nn1.netcom.ca>, "Rob"
<Pse@NoEmail.Com>
> wrote:
> >There is no information on this chip on the Hitachi web site. Very
strange.
> >
> >I sent Hitachi an Email. But perhaps someone reading this post may have
had
> >some actual experience with this type of chip.
> >
> >73's
> >Rob
> >
> >"D. Stussy" <kd6lvw@bde-arc.ampr.org> wrote in message
> >news:Pine.LNX.4.10.10006020011000.138-100000@mbx.bde-arc.ampr.org...
> >> On Thu, 1 Jun 2000, Rob wrote:
> >> > I would like to upgrade the static RAM (SRAM) chip in my KPC-3.
> >> >
> >> > I need a SRAM chip (part number S628128-70L).
> >> > They are sold out in this area. There are on back order -- probably
at
> >> > least 4 weeks before they show up. KANTRONICS sells them but they
are
> >way
> >> > TOO expensive. Talk about a mark-up!
> >> >
> >> > I can buy a 128 KB SRAM low-low power chip (part number S628128-70LL
> >such as
> >> > Hitachi HY628100A LLP-70). It is even less expensive.
> >> >
> >> > Does anyone know what the difference is between the S628128-70L chip
and
> >the
> >> > S628128-70LL chip??
> >> >
> >> > Can I use the S628128-70LL in the KPC-3??
> >>
> >> Did you try Hitachi's web site? I bet the only difference is power
> >consumption
> >> (as in current drain).
> >>
> >
> >
------------------------------
Date: 3 Jun 2000 03:39:55 +0200
From: rrowan@xsinet.co.za
Subject: I am selling computers and components for CHEAP !!! 3006
Please e-mail me and I will send you a quote. I will beat any price you have
been given.
TRY ME !!!!
My e-mail address is: rrowan@xsinet.co.za
------------------------------
Date: Fri, 2 Jun 2000 07:39:21 +0200
From: "Smaragdia" <smaragdia@netcourier.com>
Subject: Site updated
F6KEH ham radio resources site have been updated.
You can visit it at :
http://f6keh.free.fr/index_r.htm
------------------------------
Date: Fri, 2 Jun 2000 11:40:40 -0700
From: Derickam <derickam@wa.freei.net>
Subject: WTB: PK900
Please state conditions what comes with and asking price.
Prefer to do business using Paypal.com
thx
73
de
--
Derick Amburgey
k7dxx
k7dxx@hotmail.com
------------------------------
End of Packet-Radio Digest V2000 #140
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