The CPU Z80 was developed by ZILOG in 1976. SHARP bought a license
in 1977 to build and manufacture its own CPU LH0080.
Photo of the glass substrate on which the CPU is formed
25 years later ( official
unveiled in October 22, 2002 and in April 9, 2003 at the EDEX*1
/ Tokyo ) SHARP and SEL has redeveloped on experimental base a
Z80 on glass with the new LCD substrate technology called Continuous-Grain
Silicon ( CG-Silicon ). The prototype contains only 13.000 transistors
this time ( Pentium 4: 55 Millions ) and occupies an area of 169mm2.
The further development by SHARP for CGS products will be finished
*1 EDEX: Electronic Display Exhibition
The technology enables the creation of System LCDs that integrate
all driver and operation circuitry - including digital logic, LCD
driver, power supply, I/O interfaces, and signal-processing circuitry
- onto the glass itself. Eventually even the device's CPU will be
included on the substrate.
Layout of the CPU Z80 that will be formed on glass ( 2002 )
Layout of the ZILOG Z80 CPU ( 1976 )
The CG Silicon 8 bit CPU Z80 was installed in the MZ-80K ( Japanese
Model name: MZ-80C ) and did its job perfectly.