Title :
40-MHz CMOS-on-sapphire microprocessor
Author :
Briggs, George R. ; Connor, Stephen J. ; Sinniger, Joseph O. ; Stewart, Roger G.
Author_Institution :
RCA David Sarnoff Research Center, Princeton, NJ
fDate :
8/1/1978 12:00:00 AM
Abstract :
Silicon-on-sapphire (SOS) technology has been applied to the RCA COSMAC microprocessor to obtain a high-speed single-chip CPU. The chip has 4827 transistors and measures 5.3 mm square. The low device count is obtained through use of bit-serial arithmetic logic, a byte-serial incrementer, and a 5-transistor static storage cell. The low parasitic capacitance of the SOS structure permits a 40-MHz clock rate at 14 V.
Keywords :
Circuits; Clocks; Latches; Logic arrays; Microprocessors; Pins; Read-write memory; Registers; Timing; Writing;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/T-ED.1978.19207
