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itt an alq 136 countermeasures processor bit slice with a bite the cpu shack museum cpu history museum for intel cpus amd processor cyrix microprocessors microcontrollers and more total cpu s 20 000 total manufacturers 150 total eprom s 2000 home about pictures reference trade links contact us test boards products the cpu shack has a variety of test boards available for sale including mcs 4 40 boards rca cosmac boards mcs 80 boards z80 8085 nsc800 expansions mcs 8 test systems national sc mp test board 6800 6502 family test system signetics 2650 test boards intel mcs 86 test systems intel i3002 test systems am2903 2901 74181 motorola 68060 cpu s categories boards and systems cpu of the day eprom of the day gpu how to just for fun memory museum news processor manufacturers processor news products research uncategorized recent posts sandia national labs sa3000 8085 cpu the forgotten ones actron am1608 16 bit cpu the general automation ga 16 16 bit cpu unknown and unobtainable mystery chips soviet s first planar integrated circuits july 2nd 2017 by admin itt an alq 136 countermeasures processor bit slice with a bite itt 80063sm a 919797 an alq 136 v i processor the 2901b s are the 4 larger dies in a row middle right military computing applications require many custom designs as they are very mission specific a great example is this itt hybrid processor it was designed and used for the an alq 136 v 1 cms countermeasures system for the ah 1f cobra attack helicopter two of these hybrids are used in the system one for the mod recovery board and one for the slo processor board these boards are used to detect hostile pulse radar systems analyze them and begin jamming based on what type they are this requires relatively fast processing and a generally custom design today a modern dsp processor could handle this task without issue however in the early 80 s the an alq 136 debuted in 1982 dsp processors were in their infancy in 1982 a fast custom processor needed to be built with bit slice elements in this case the very versatile amd 2901 was used the itt hybrid integrates 4 amd am2901b processor dies as well as associated memory and interfacing elements the single package contains almost 100 dies and many discrete components it is built on a ceramic substrate with gold traces and sealed in a metal package this is required to protect the digital components of the system from electronic interference whether from external sources or from the helicopters own radar systems the an alq 136 is designed to prevent the cobra from being successfully targeted by radar guided missiles failure means a strong possibility that the helicopter gets hit not something its crew would like to deal with 4x amd am2901b dies the 4 amd 2901bs run at 16mhz 50 faster then the original 2901s and are made with ecl together they provide 16 bit processing of the incoming radar signals the slo side lobe opposition and mod recovery modulation recovery are used to determine the exact type of the enemy radar each radar has a distinct characteristic that the cms can match and respond to the cms is programmed to respond to the radar signals of the most critical threat weapon systems anticipated to be encoun israeli ah 1f cobras now retired transferred to jordan tered in the hostile environment these signatures are stored in the hybrids roms as well as the desired response to them updates likely remain replacing these hybrids with updated versions new countermeasures systems such as the 136 s replacement the an alq 211 are more easily upgradeable to new threats the ah 1f cobra continues to fly with the air forces of several countries around the world notably pakistan jordan and turkey the united states forest service also operates 25 ah 1f cobras for wildland fire use but it is rather unlikely that the countermeasures on these are operable let alone needed tags 2901 amd bit slice mcm military posted in cpu of the day intel s first the 3101 64 bit bipolar memory intel broadwell broadens its horizons in space leave a reply name required mail will not be published required website δ rss feeds the largest cpu museum in my daily hunt for new processors and other chips for the museum as well as information about new chips i constantly come across interesting chips in strange locations here you will get a chance to learn where many of the chips in the museum come from and what they are latest cpu images here they are sorted by manufacturer technically brand and thumbnails are now working you may also view them in raw directory form here and a few that didnt make it into the gallery here ebay deals clicking a link to ebay may result in a referral commission being paid if a purchase is made loading popular articles links how a cpu is made amd 29k reference guide mergers aquisitions spin offs k6 2 cpu id guide via c3 cpu overview uli m6117c embedded 80386sx overclocking eastern bloc cpu guide cpu socket id guide mediagx and geode cpu guide cyrix id cpu guide intel rapidcad cpu datasheet archive tags 2901 6502 6800 alu amd apple arm atmel bit slice cyrix dec dsp embedded eprom fairchild hp ibm intel lsi lsi 11 mcm mcs 51 mcu mil std 1750a mips motorola national semiconductor nec nvidia pdp 11 philips pic powerpc qualcomm renesas risc signetics soviet space sparc sun ti vliw z80 zilog 2009 the cpu shack site by pxl creative