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KM1801VM2 (KM1801BM2) Rare USSR Soviet Gold Ceramic analog of DEC PDP-11 CPU For Sale


KM1801VM2 (KM1801BM2) Rare USSR Soviet Gold Ceramic analog of DEC PDP-11 CPU
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KM1801VM2 (KM1801BM2) Rare USSR Soviet Gold Ceramic analog of DEC PDP-11 CPU:
$22.00

KM1801VM2 (KM1801BM2) - Soviet 16-bit PDP-11 CPU withown NMOS ASIC design (by Angstrem factory)
Analog of DEC Digital Equipment Corporation DEC DCT-11AC compatible CPU
Speed: 10 MHz(High Speed Register Operations 1.000.000 op/s)
Volume of addressable memory: 64KB
40-pin ceramic gold DIP package
Implements the PDP-11 command system but this is completely self-developed.In the structure, a branch processing unit has been added, which accelerates the execution of commands under conditions N, Z, V, C, and specials. advanced arithmetic unit (floating point) - MUL, DIV, ASH and ASHC were added to the basic set, which were performed programmatically on the K1801RE1 system ROM (i.e., when the process met the code of this command, it generated a special interrupt, read the external SEL register, and depending on one of the bits gave either an interrupt on an invalid command or a transition to the program of its execution). Changes were also made to the work of other blocks, which made it possible to halve (up to 1 µs) the execution time of a register command, enter the exit operation to the system highway through the window, the additional zone of the address space of the system memory, simplify the external interface signal generation schemes.The performance increase is achieved due to deeper pipelining, which is organized so that by the end of the execution of any command the next one is already in the buffer command register, and the next one starts from the main line. When building multiprocessor systems, an additional trunk can be formed by selecting a “window” - the address space of RAM from 160,000 to 163,777.

\"Angstrem\" factory, USSR/Russia 1990

BRAND NEW

Excellent examples for your Collection!

Lot - 1 pcs. Price for 1 piece.


Payment and Shipping description:
Accepted only PayPal payments!
Worldwide shipping via airmail with tracking number
Standard shipment time:16-24 days (USA, Europe, Asia)18-30 days (Australia,Canada,Brazil and island countries)
Tracking Service online:trackitonline.org
Combined shipping of lots is available
Information for buyers:Sometimes the shipment can take longer, up to 45 days or more.This may be due to delays at customs, logistic specificity and holidays.I always ship goods by airmail with tracking number within 3 business days.The speed of the international shipment does not depend on me.If you are not willing to wait in case of delay, please do not buy the lot!
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