Intel (i) is an enhanced version of Intel microprocessor. According to Intel’s datasheet some microprocessors could operate in industrial. The Intel (i) is a 4-bit microprocessor introduced in by Intel as a successor to the Intel The i Datasheet. The Intel microprocessor was a revised and extended version of the Intel Datasheet ยท Intel MCS Prototype System Summary.

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When an instruction is to be stored in RAM program memory, it is written in two four-bit segments. The CPU can directly address 4Keight bit instruction. Intel products are not intended for use in inte, life saving, or life sustaining applications. The 2nd word represents 8 bits of data which are loaded into the designated index register pair.

The index register bank select flip-flop is set. The 4 bit content of the designated index register is incremented by 1. The Intel microprocessor was the successor to the Intel The interrupt acknowledge line is cleared to V SS. The Intel i is a 4-bit microprocessor introduced in by Intel as a successor to the Intel They invented the Microcontroller”.

The program counter address stack is pushed inte one level.

Intel 4004

The most significant bit of the command register, CR 3is set. CPU and system power consumption which in return results datashheet longer battery life. His methodology set the design style for all the early Intel microprocessors and later for the Zilog Datasneet A code conversion is performed on the accumulator content, from 1 out of n to binary code. The ceramic D variant. The 4 bit content of the designated index register RRRR is loaded into the accumulator.


In the lower-right corner of the CPU you can see the “F. Specifically, the first 2 bits dqtasheet the address designate a RAM chip; the second 2 bits designate 1 out of 4 registers within the chip; the last 4 bits designate 1 out of 16 4 bit main memory characters within the register.

The is part of the Intel MCS chipset. Add the previously selected RAM main memory character to the accumulator with carry. This instruction can be used only with the standard memory chip. If the result is zero, the next instruction after ISZ is executed.

(Datasheet) pdf – Single Chip 4-Bit P-Channel Microprocessor (1-page)

From to [1]. Faggin, the sole chip designer among the engineers on the MCS-4 project, was the only one with experience in metal-oxide semiconductor MOS random logic and circuit design.

Retrieved from ” https: The 4 bit contents of index register 4 are logically “OR-ed” with the accumulator. Except as provided in Intel ‘s Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to. The 4 bits of status character 1 from the previously selected RAM register are transferred to the accumulator. The first public mention of was an advertisement in the November 15, edition of Electronic News[7] though unconfirmed reports put the date of first delivery as early as March Select index register bank 0.


The index register bank select flip-flop is reset. The first commercial sale of the fully operational occurred in March to Busicom Corp.

BBL is used to return from subroutine main program. The ceramic C variant. The accumulator is cleared. Write the contents of the accumulator into the previously selected RAM main memory character.

The myth was repeated by Federico Faggin himself in a lecture for the Computer History Museum in Increment contents of register RRRR. This page was last modified on 13 Decemberat If an interrupt routine wanted to make use of the latter eight registers, it was up to the programmer to first save any data held in them to another location, and then restore it before returning from the routine.