Sharp PC-1360 find

[polbit]

(12-22-2023 01:51 AM)xerxes Wrote:  

(12-19-2023 06:56 PM)polbit Wrote:  Comparing CPUs, 1500 has a 1.3MHz LH5801 while 1360 uses SC61860 at (I believe) 768KHz.

Dave is right. The CPU clock of the LH5801 is 2.6 MHz (1.3 MHz machine cycle) vs 0.768 MHz (0.256 MHz machine cycle) of the SC61860.
At the same clock frequency the PC-1360 would be slightly faster.

Looking at the PC-1500 Technical Service Manual, it clearly states that the CPU gets a 1.3MHz clock. The crystal is 2.6MHz, but it's divided to drive the clock. Am I missing something here? I can't find similar information for the SC61860.