CPU-Zone MCS-4

MCS-4 Chipset

The MCS-4 chipset was a set of devices to make it possible to build a complete computer system.
(MCS-4 family was later expanded to MCS-4/40. Link to 4040 section.)

4001	2048-bit Mask Programmable MOS ROM and 4-bit I/O
4002	320-bit MOS RAM and 4-bit output port
4003	10-bit Serial-in/Parallel-out, Serial-out MOS Shift Register
4004	4-bit Central Processor Unit with 45 instructions

MCS-4 Series in gray traces ceramic package
C4001	C4002-1	C4002-2	C4003	C4004
Intel C4001 gray traces ceramic package.	Intel C4002-1 gray traces ceramic package.	Not in collection!	Intel C4003 gray traces ceramic package.	Intel C4004 gray traces ceramic package.
N.D.C	N.D.C		Malaysia 7509	Malaysia 7512

MCS-4 Series in white ceramic package #5 marking
C4001	C4002-1	C4002-2	C4003	C4004
Intel C4001 white ceramic package #5 marking.	Intel C4002-1 white ceramic package #5 marking.	Intel C4002-2 white ceramic package #5 marking.	Not in collection!	Intel C4004 white ceramic package #5 marking.
Malaysia N.D.C	Malaysia 7506	Malaysia N.D.C		Malaysia N.D.C

MCS-4 Series in white ceramic package
C4001	C4002-1	C4002-2	C4003	C4004
Intel C4001 white ceramic package.	Intel C4002-1 white ceramic package.	Intel C4002-2 white ceramic package.	Intel C4003 white ceramic package.	Intel C4004 white ceramic package.
N.D.C	Malaysia N.D.C	Malaysia N.D.C	USA 7625	PHILIPPINES 7534

MCS-4 Series in white ceramic with ground strap
C4001	C4002-1	C4002-2	C4003	C4004
Not in collection!	Intel C4002-1 white ceramic with ground strap.	Not in collection!	Intel C4003 white ceramic with ground strap.	Intel C4004 white ceramic with ground strap.
	USA 7640		HONG KONG 7549	HONG KONG 7614

MCS-4 Series in white ceramic package half round key
C4001	C4002-1	C4002-2	C4003	C4004
Not in collection!	Intel C4002-1 white ceramic package half round key.	Not in collection!	Intel C4003 white ceramic package half round key.	Intel C4004 white ceramic package half round key.
	Malaysia 7538		HONG KONG 7627	Malaysia 7647

MCS-4 Series in white ceramic package black dot
C4001	C4002-1	C4002-2	C4003	C4004
Intel C4001 white ceramic package black dot.	Not in collection!	Intel C4002-2 white ceramic package black dot.	Not in collection!	Intel C4004 white ceramic package black dot.
USA 7819		Philippines 7637		PHILIPPINES 7635

MCS-4 Series in gray ceramic package
D4001	D4002-1	D4002-2	D4003	D4004
Not known to exist!	Intel D4002-1 gray ceramic package.	Intel D4002-2 gray ceramic package.	Not known to exist!	Intel D4004 gray ceramic package.
	Malaysia 7641	Philippines 8181		Malaysia 8101

MCS-4 Series in grey plastic package with gold pins
P4001	P4002-1	P4002-2	P4003	P4004
Intel P4001 gray plastic package.	Intel P4002-1 gray plastic package.	Intel P4002-2 gray plastic package.	Intel P4003 gray plastic package.	Not known to exist!
NDC	N.D.C	N.D.C	N.D.C

MCS-4 Series in grey plastic package
P4001	P4002-1	P4002-2	P4003	P4004
Intel P4001 gray plastic package.	Intel P4002-1 gray plastic package.	Intel P4002-2 gray plastic package.	Intel P4003 gray plastic package.	Not known to exist!
MEXICO 7412	Philippines 7506	N.D.C	Philippines 7516

MCS-4 Series in black plastic package
P4001	P4002-1	P4002-2	P4003	P4004
Intel P4001 black plastic package.	Intel P4002-1 black plastic package.	Intel P4002-2 black plastic package.	Intel P4003 black plastic package.	Intel P4004 black plastic package.
Philippines 8101	Philippines 7829	Philippines 7948	Philippines 7948	PHILIPPINES 7641