Sizif-512 rev.D1——This week Excellent PCB projects
Description：✍️?
CPLD-based ZX Spectrum clone for 48K rubber case with some sweet features.
Tech specs:
* Half-sized PCB for 48K rubber case
* Pentagon, Spectrum 128, Spectrum 48 and Spectrum +3e modes
* Altera EPM1270 CPLD
* Real Z80 in 3.5MHz, 4.4MHz, 5.2MHz, 7MHz (no-wait turbo) and 14MHz (turbo with wait-states) modes
* 512K RAM
* Real AY-3-8910 with switchable stereo ABC/ACB/mono output
* Sega 6-button joystick input; Kempston/Sinclair modes
* Integrated DivMMC, 1x microSD socket
* PAL and RGB video output (Sega Mini-DIN/9 connector)
* Digital video output header for EGA monitors, VGA scandoublers, etc.
* ULAplus
