Intel 4040 Details, Meaning Intel 4040 Article and Explanation Guide

Intel 4040 Guide, Meaning , Facts, Information and Description

The Intel 4040 was the successor to the Intel 4004. It was introduced in 1974.

Table of contents

1 New features
2 Extensions
3 New support chips

New features

Interrupt
Single Step

Extensions

Instruction Set expanded to 60 instructions
Program memory expanded to 8K bytes
Registers expanded to 24
Subroutine stack expanded to 7 levels deep

New support chips

4201 - Clock Generator 500 to 740 kHz using 4 to 5.185 MHz crytals
4308 - 1K byte ROM
4207 - General Purpose byte Output port
4209 - General Purpose byte Input port
4211 - General Purpose byte I/O port
4289 - Standard Memory Interface (replaces 4008/4009)
4702 - 256 byte UVEPROM
4316 - 2K byte ROM
4101 - 256 4-bit word RAM
4002 - 320 bit (80 x 4) RAM and 4 discrete Outputs

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