Zilog Z8 microcontroller familyZilog Z8 is an 8-bit microcontroller with integrated clock oscillator, two timers/counters,
serial line and 32 I/O lines (4 ports). The Z8 had separate data and program memory spaces.
Internal program memory of the Z8 ranged from 0 KB (for ROMless version) to 4 KB, and
it could be expanded up to 64 KB of program memory using external ROM.
The microcontroller had 144 8-bit registers - 4 I/O registers, 16 control registers and 124
general registers. Data memory on the Zilog Z8 could be expanded by adding
up to 62 KB of external memory. The microcontroller supported stack operations,
it was possible to use general registers or external data memory to store stack data.
The Zilog Z8 family included the following modifications:
![]() Picture of: SGS Z8681B1 40-pin plastic DIP
![]() Picture of: SGS-Thomson Z8681B1 40-pin plastic DIP
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