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Article #43258Re: About the MC6844 (DMAC)
From: Paul Good
Date: Sat, 18 Dec 1993 13:34
Date: Sat, 18 Dec 1993 13:34
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1690 bytes
Benoit Archambault writes:
> Actually the MC6844 is not vaporware. I saw it last week
> at ACTIVE here in Montreal. Rated at 9.95$ (CAN).
I just checked my Active catalogue (vol. 914) and it lists the MC68B44P at
$16.20 (CAN). It also lists the speed as N/A, however, Motorola uses the
B on most/all of its 68xx series chips. Also, the last time I bought chips
at Active (a couple of months ago), the prices ranged from about 1/2 to 2
times the catalogue price.
The Motorola Semiconductor Master Selection Guide lists the MC6844 as an
NMOS chip that
Performs the function of transferring data directly between memory
and peripheral interface controllers, thus bypassing the MPU and its
associated time delay. Transfers data at up to 2 Mbytes per second
rate.
--
Paul Good os9paul@gkcl.ists.ca
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From: Paul Good <os9paul@GKCL.ISTS.CA>
Subject: Re: About the MC6844 (DMAC)
In-Reply-To: <93Dec17.114513est.24220@mailhub.ists.ca>; from "Archambault
Benoit" at Dec 17, 93 11:41 am
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