HMOS - MCS-51 requiring external c/k source connection

Q.  Which version of MCS-51 requires the necessary connection of external clock source to XTAL2 in addition to the XTAL1 connectivity to ground level?
- Published on 09 Nov 15

a. HMOS
b. CHMOS
c. CMOS
d. All of the above

ANSWER: HMOS

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