1. Home
  2. Electronics Design
  3. ST M093B1 (DIP) = RAM?

ST M093B1 (DIP) = RAM?

I have pulled three ST M093B1 DIP chips (socketed!) from a working (but analog) Alcatel phone switch, [the kind that had 3 POTS inbound lines and up to 16 extensions.... ] before the owner decided to dump it into the trash bin.

The problem I=B4m facing is that I=B4m unable to find any datasheet for this part number.

The only thing I was able to find is this:

formatting link
"IC,ANALOG SWITCH,SINGLE,12X8 CROSSPOINT,CMOS,DIP,40PIN,PLASTIC"

It describes the manufacturer as "SGS-Ates Componenti Electronici S P A". So it=B4s an Italian design (?!) I wasn=B4t aware Italy had a semiconductor industry in the 1980s (this device was mfg 1984, it had a label on the enclosure).

If it=B4s an analog switch, I=B4d love to use it to buid a switcher for my HDTV=B4s single component video (YPbPr) inputs.

Any idea of where I could find a datasheet or pinout for this M093B1? I know it=B4s ancient history, but still, the Commodore 64 had lots of exclusive chips and the pinouts are readily available. ;-)

Thanks in advance. FC

Reply to
fcassia
Loading thread data ...

Why fool with obsolete telcom chips if you want to switch video? I doubt they have the required bandwidth, or port isolation to do the job. Maxim and other companies make video MUX chips designed to do the job. Or go backwards 100 years and use small signal relays.

--
It's easy to think outside the box, when you have a cutting torch.
Reply to
Michael A. Terrell

SGS has been called STMicroelectronics for quite a long time...

formatting link

They even had a large facility in Phoenix. ...Jim Thompson

[On the Road, in New York] 
--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |
             
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

I remember SGS from my TV repair days. I saw a lot of low grade transistors with their logo. TO-92, epoxies into aluminum tabs for cheap audio outputs. No replacements were available from the OEM, even for warranty repairs so we had to pry open the aluminum tabs and crimp them over ECG replacements. Morse/Electrophonic used tons of the crappy things for their so called stereos. Two pair, for a claimed 150 watt stereo output. I always figured that they changed their name to hide their past. :(

--
It's easy to think outside the box, when you have a cutting torch.
Reply to
Michael A. Terrell

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.