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From: jbn@glacier.STANFORD.EDU (John B. Nagle)
Newsgroups: comp.sys.m68k,sci.electronics,comp.sys.mac
Subject: More on SCC68070
Message-ID: <17366@glacier.STANFORD.EDU>
Date: 18 Mar 88 17:05:51 GMT
Organization: Stanford University
Lines: 39
Keywords: 68070, microcontroller


      For all the people who asked for more information about the Signetics
68070, here is all the information that I have at this time.

     The SCC68070 is manufactured by Signetics, a subsidiary of U.S.
Philips Corporation.  Carol Jacobson at Signetics, 811 E. Arques Avenue,
P.O. Box 3409, M/S 75, Sunnyvale, CA  94088-3409, telephone 308-991-3682
can provide further information, data sheets, and samples.  The part is being
sampled now (we have one, but don't have it plugged into anything yet)
but is not yet in full production.  The part was originally developed for
the Philips interactive optical-disk player.  Pricing is not yet available
but will not be outrageous; this is intended as a component in consumer
products.

     Some additional support, and an evaluation board, may be available from
the International Microelectronic Support Center, CTI, 4-16 Avenue du General
Leclercm 92660 Fontany-aux-roses, France.  This last information comes from
someone at Philips Eindhoven (Netherlands).

     The SCC68070 is program-compatible with the Motorola M68010.  It is
a CMOS part running at 10 MHz.  In addition to the 68010 logic, the chip
also contains the following features.

	- On-chip 2 channel DMA controller
	- On-chip I2L serial bus interface
	- On-chip UART
	- On-chip MMU, supporting virtual memory
	- Built-in clock generator
	- 16-bit timer/counter
	- Two 16-bit match/count/capture registers.

Packaging is an 84-pin PLCC.  Power consumption is not available at this time.
Temperature range is 0C to 70C.  Absolute minimum configuration appears to
be the SCC68070, a 20MHz crystal, some static RAM, a ROM to get things started,
a +5 supply, and a terminal interfaced to CMOS levels.  Finding or making
a suitable program to put in ROM is probably the hard part.


					John Nagle