Microcomputer Kit

(1)

MCS4

Microcomputer Kit

MCS~4 - INTEL'S LOWEST COST MICROCOMPUTER.

IDEAL FOR PROTOTYPE OR LOW VOLUME PRODUCTION.

The MCS-4 is a microprogrammable computer set designed for applications such as test systems, peripherals, terminals, billing machines, measuring systems, numeric and process control.

The 4004 CPU, 4003 SR, and 4002 RAM are standard building blocks.

The 4008 and 4009 are a pair of interface devices which expand the capa- bilities of Intel's MCS-4 microcomputer set. Now standard Intel PROMs, ROMs and RAMs may be used for the program memory of the MCS-4.

MCS-4 systems interface easily with switches, keyboards, displays, teletype- writers, printers, readers, A-D con- verters and other popular peripherals.

A system built with the MCS-4 microcomputer set can have up to 4K x 8 bit ROM words, 1280 x 4 bit RAM characters and 128 I/O lines without

4004 CPU

~"f

^I ¹⁶

""l

CM·RAM, MEMORY

BUS CONTROL

I/O 0, CM.RAM, OUTPUTS

0, CM·RAM3

GNO Vss 5 12 Voo -15V

p~~g~~}<p, ⁶ ^II ^CM·ROM_{. OUTPUT}^{MEMORY^CONTROL p~~~m<p, ⁷

Ou;~~nSYNC ⁸

4702A ROM

·THIS PIN IS THE DATA INPUT LEAD DURING PROGRAMMING.

requiring any interface logic. By adding a few simple gates the MCS-4 can have up to 48 RAM and ROM packages in any combination, and 192 I/O lines.

The MCS-4 has a very powerful instruction set that allows both binary and decimal arithmetic. It includes conditional branching, jump to subroutine, and provides for the efficient use of ROM look-up tables by indirect fetching.

The Intel MCS-4 microcomputer set (4002/3/4/8/9 and 4702A) are fabri- cated with Silicon Gate Technology.

This low threshold technology allows the design and production of higher performance MaS circuits and provides a higher functional density on a mono- lithic chip than conventional MaS technologies.

4002 RAM

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I 16

'j

^0,

BUS OUTPUT

1100, O

2 LINES

03 0 3

12 Voo -15V

p~~i~}<p, ⁶ ^II CM CONTROL ^{MEMORY INPUT

p~l~g}<P, ⁷ ¹⁰ ·lHAROWIREO Po CHIPSELECT

I~~~~}SYNC ⁸ ⁹ ^RESET^INPUT

4008

MCS4 KIT A

• Programmable General Purpose Microcomputer

• 4-Bit Parallel CPU with 46 Instructions

• Instruction Set includes Conditional Branching, Jump to Subroutine and Indirect Fetching

• Binary and Decimal Arithmetic Modes

• Program Storage in 4702A Reprogrammable PROM Simulates 4001 ROM

• 2-Phase Dynamic Operation

• 10.8 Microsecond Instruction Cycle

• CPU Directly Compatible with MCS-4 ROMs and RAMs Using 4008/4009 Standard Memory ana 1/0 Interface Set

• Easy Expansion-One CPU can Directly Drive up to 32,768 Bits of ROM and up to 5120 Bits of RAM

4003SR

PULSE ~~~~*p ^I

PARALLEL{Oo 3 OUTPUTS

n, 13

')

a.

a PARALLEL

f

⁶ 7 OUTPUTS

PARALLEL 0 _OUTPUTS ₃ a.

O. 05

4009

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MCS4 KIT A

SYSTEM INTERCONNECT

+5V

7400

HC-18/U (XTAL) 5.185 MHZ

~

¹⁵⁰⁸²⁰ⁿ² ^.01/'1

Ipi

820n

74H04

.1/,1

47S1

RESET

47n

TEST

+5

11 on

5.6K

-10V

SUGGESTED CLOCK DRIVER, TEST AND RESET CIRCUITRY

TEST

1 2 3 4

~ ~ ₈

7

i 4008

~ ~ _Jl2 --2... _F/L

-1Q... _W 11 13 1415

C C C C 3 2 1 0

****

NOTES:

CONSUL T MCS 4 USER'S MANUAL.

SEE 4008/4009 DATA SHEET.

SEE 4702A DATA SHEET .

•••• THESE LINES MAY BE DECODED FOR UP TO 16 PROMS.

(Vss = +5V !5%; Voo = -10V !5%) 23 22 21 20 19 18 17 16

I

TEST ₁₀

7'

⁶ ¹⁶₁₅

i C4004 14

CPU 13

1 12 3 4 81111 9f

I I 1

I 1

I

221231121131151 Vss

AO 3 4

Al 2 5

A2 1 6

A3 21

i 4702A 7

A4 20 PROM 8

A5 19 0 9

A6 18 10

Al 17 11

~ ₁₄

24_Voo

1

¹⁶

'{

TO 16PROMS * * *

III III

CM-RAM 0 CM-RAM 1 CM-RAM 2 CM-RAM 3

RESET CM-ROM

SYNC DO Dl D2 D3

RDO 5

RD1 6

RD2 7

RD3 8

RD4 1

RD5 2

RD6 3

RD7 4

1.

2322 21rf

~ ~ ₁₃

14 i 4009

~

110 { ~

~2

~6 3 910

iN OUT

' - - - - y - - - / INPUT/OUTPUT PORT CIRCUITRY

**

- -

--

- - - -

--

^- ^{- - -}

- - - - - - - -

--

^{- - - -}

--

-

^-

--

r-

^{- - - -}_{- - - -}

1 2

1

⁴

f

8 9 7 6 PO

0---;-0

Vss RAM

DATA IN

i P4002-1 o 1 2 3 161514\131

--- I ^II CP I I ENABLE

1 I )., 16

~ i P4003 15 SERIAL

31416171819ttttl

00--- --- 09 ' - - - y - - - - J

PARALLEL OUTPUTS DATA OUT

INTEL CORPORATION, 3065 Bowers Avenue, Santa Clara, California 95051 (408) 246-7501

UP TO 16 RAMS 4 RAMS *

PER BANK