National Semiconductor SC/MP II (INS8060) CPU familyNational Semiconductor SC/MP II, or INS8060, is an enhanced version
of Simple Cost-effective MicroProcessor (SC/MP)
family. The SC/MP II processors are object-code compatible with
the SC/MP. Major differences of the INS8060 family from the original
family is better NMOS manufacturing process, lower power consumption
at higher frequencies, and single 5 Volt power supply. Processor's
micro-architecture didn't change - the INS8060 supports interrupts,
can address up to 64 KB memory (with some limitations), has the same 46
instructions as the SC/MP processors, and doesn't have on-chip stack.
Efficiency of SC/MP II CPU instructions didn't change too - they still
require from 5 to 23 cycles to execute. However, the SC/MP II has
better performance due to higher clock frequency. Whereas SC/MP had
2 microsecond microcycle time at 1 MHz, the INS8060 has 1 microsecond
microcycle time at 4 MHz.
National Semiconductor SC/MP II processors were manufactured in 40-pin DIP package. There were no second-source manufacturers of INS8060 microprocessors. Production parts![]() 40-pin ceramic side-brazed DIP
![]() 40-pin plastic DIP
|
Search CPU-WorldIdentify partRelated LinksAt a glanceType: 8-bit microprocessor Introduction: 1977 Frequency (MHz): 4 | ||||||