General Instrument AY-3-xxxx - 1 attachment
1 Attachment(s)
Now I got a pair of ICs which I cannot identify nor did I find anything on
the net. They're from General Instrument, thats for shure. And they fit their particular nomenclature like the infamous AY-3-8500 pong or AY-3-8910 sound chips. But these are AY-5-9500 and AY-5-9118 respectively. Any ideas out there ? |
General Instrument AY-3-xxxx - 1 attachment
On Fri, 26 Nov 2010 20:33:00 GMT, Radioman
wrote: Now I got a pair of ICs which I cannot identify nor did I find anything on the net. They're from General Instrument, thats for shure. And they fit their particular nomenclature like the infamous AY-3-8500 pong or AY-3-8910 sound chips. But these are AY-5-9500 and AY-5-9118 respectively. Any ideas out there ? Not sure what the 9118 is but maybe it's not really a GI chip ?? Found this though... http://www.datasheetarchive.com/data...s-0017796.html AY-5-9500 C-MOS Clock Generator FEATURES PIN CONFIGURATION 14 LEAD DUAL IN LINE Top View DESCRIPTION The AY-5-9500 is a C-MOS circuit designed to generate the 2 phase clock required by the AY-5-9100 series of Push Button Telephone Dia"ers and the AY-5-9200 Repertory Dia"er circuit. It consists of an RC OSCillator, a level shifter, a 2 phase clock generator and driver, and a clocked D-type bistable. The RC oscillator is set by external components to run at 36kHz and is normally operated from a -4 Volt supply to minimize power consumption. The oscillator output is shifted and used to drive the 2 phase clock generator. The D-type bistable is either used as a Reset generator for the AY-5-9100 or AY-5-9200 or it is used to drive a Cockroft-Walton voltage multiplier to generate the nominal 15 Volt supply for the AY-5-9100 and AY-5-9200. 36KHz OUIPut Oscillator Oscillator Oscillator Data Input a Output aOutput BLOCK DIAGRAM This Material Copyrighted By Its Respective Manufacturer AY-5-9500 ELECTRICAL CHARACTERISTICS Maximum Ratings Standard Conditions (unless otherwise noted) Characierl.tlc Clock Output8 Frequency at pin 12 Frequency stability Rise Time (T.) Fall Time (T.) Width (Tw) Separation (Ts) Input leakage Output Current-Logic 0 (High) Pin 2 Unlt8 kHz ns ns ns ns Conditions Vss Vas Vas Vas Vas Vas 0.5 0.5 O.S 0.5 0.5 0.8 nA mA mA mA rnA rnA rnA tP1, tP3 Output Current-Logic "1" (Low) Pin 2 tP 1, tP 3 TIMING DIAGRAM This Material Copyrighted By Its Respective Manufacturer AY-5-9500 CLOCK OUTPUT Fig. 1 |
General Instrument AY-3-xxxx - 1 attachment
boB K7IQ wrote in :
http://www.datasheetarchive.com/data...cans-0017796.h tml Sorry for late reply, but thanks. Now this is a surprise, don't remember how this ended up in my grab bag ... |
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