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|DIL_CPu’s |Mother
Boards |Input Output |Memory
|Peripheral Devices |
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Covering a range of the most recient
CPU’s. Earlier versions I4040, I8080,
IZ80, R6502, M6800 and the M68000 used by Apple |
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The 4004
is a 4 bits CPU in a 16 pin package containing 2300 transistors making up the
arithmetic and logic unit and the control unit. Its clock speed is 108 -
740kHz with an instruction set of 8 bits addressing up to 1 Kb of program
memory and up to 4 Kb of data memory (as separate entities). It also had
sixteen 4-bit (or eight 8-bit) general purpose registers, and an instruction
set containing 45 instructions. |
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The 24 pins 4040 was used in the early
games, test, development, and control machines. containing14 instructions,
larger stack (8 level), 8K program space, 8 more registers, and interrupt
abilities including shadows of the first 8 registers. |
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The first complex 8-bit data bus
microprocessor designed for use as a terminal controller and was a TTL logic
chips with seven 14-bit registers and 16-bit address bus. |
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Created by the Intel 1974 by Federico Faggin, his last chip before he went to Zilog). Used in the Altair 8800, the first widely-known
personal computer, the first widely accepted microprocessor which created the
microprocessor market. The 8080 had a 16 bit address bus and an 8 bit data
bus. Internally it had seven 8 bit registers, A-E, H, L - pairs BC, DE and HL
could be combined as 16 bit registers, a 16 bit stack pointer to memory which
replaced the 8 level internal stack of the 8008, and
a 16 bit program counter. It also had several I/O ports - 256 of them, so I/O
devices could be hooked up without taking away or interfering with the
addressing space, and a signal pin that allowed the stack to occupy a
separate bank of memory |
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The 8085 was the follow-on from the
8080A processor and it was Intel's first 5 volt microprocessor, 100% software
compatible with the 8080A with increased systems performance. The initial
8085's were based on NMOS technology and the later "H" versions
were based on HMOS technology. |
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Z80 microprocessors
created by Federico Faggin's www.intel4004.co following on from the
8080 with an 8-bit CPU object-code. The Z80 includes full set of 8080
registers and instructions, and supports 8080 interrupts. In addition to
that, the Z80 has many enhancements, 80 new instructions, including block
transfer, bit and string manipulation instructions. 2 new index registers and
a duplicate set of general-purpose and status registers. New types of
interrupts for Z80 and non-Z80 peripheral devices. Single +5V voltage. The Zilog Z80 microprocessor was second sourced by many
companies. Clones of this processor were manufactured in |
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