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Z80
,/* Description */
It has a language of 252 root instructions and with the reserved 4 bytes as prefixes, access to an additional 308 instructions. Although it lacks the raw processing power of processors like the Intel 80x86 or the [[Motorola 68000]] series, the Z80 is extremely useful for low cost control applications.
The Z80 has about 8500 transistors. To put it into perspective, 64KB of DRAM contains 524288 transistors, as 1 bit of DRAM needs 1 transistor. It comes in a 40-pin DIP package. It has been manufactured in A, B, and C models, differing only in maximum clock speed. It also has been manufactured as a stand-alone microcontroller with various configurations of on-chip RAM and EPROM.
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