8008
|
| Manufacturer |
Intel Corp. |
 |
mask |
| Category |
8-bit
microprocessor |
499 kB |
| Introduction |
December
1971 |
|
| History |
The specification during the development
period was 1201
In 1972 Intel introduced the second
microprocessor. Again this chip was produced for a special customer
related contract. The client was Computer Terminals Corporation (Datapoint).
CTC intended to use the chip for a server named CTC 2200. Since the 8008
was too slow CTC refused the chip. Intel decided to introduce the chip
into the market by itself and thus encouraged the processor market. CTC
was allowed to cancel the contract. In return CTC had to let Intel have
the right to commerzialize the chip.
It found applications in
byte-oriented end products such as terminals and computer periphals
where its instruction execution (20 micro-seconds), general purpose
organization and instruction set matched the requirements of these
products.
Based on the
8008 Intel developed an evaluation tool, called Intellec 4, which
enabled programmers faster and easier programm developments.
|
| Technology |
Single chip
fourteen-volt P-Channel MOS 8-bit parallel central processor unit (for
MCS-8 microcomputer system). That is, the device
requires +5 and –9 volt power supplies, for a total potential of 14
volts. This process is also used to produce the 1101 (256 x 1 RAM) and
the 1103 (1024 x 1 Dynamic RAM). A similar process is used in the
production of the 1702A (256 x 8 PROM). The 8008 used standard
semiconductor ROM and RAM and, for the most part, TTL components for
I/O and general interface. It found applications in byte-oriented end
products such as terminals and computer periphals where its
instruction execution (12.5 to 20 micro-seconds), general purpose
organization and instruction set matched the requirements of these
products.
|
| Max.
clock frequency |
8008: 0.5 MHz
8008-1: 0.8 MHz
|
Examples
Package |
Intel
8008 |
Intel
C8008 |
Intel
C8008-1 |
Intel
C8008-1 |
 |
 |
 |
 |
| 18
PIN CERDIP
|
18
PIN CERDIP |
18
PIN CERDIP |
18
PIN CERDIP
ground strap |
|
Examples
Package
Comment |
Intel
C8008-1 / 1820-1221 |
Intel
D8008 |
Intel
D8008-1 |
 |
 |
 |
| 18
PIN CERDIP |
18
PIN CERDIP |
18
PIN CERDIP |
manufactured
for HP
(HP house marking) |
- |
- |
|
Second source devices
Package |
Microsystems
International
MF 8008 |
Microsystems
International
MF 8008 R |
Microsystems
International
MF 8008-1R |
Siemens
SAB 8008-1C |
Siemens
SAB 8008-1D |
 |
 |
 |
 |
 |
18
PIN CERDIP
ground strap |
18
PIN CERDIP
ground strap |
18
PIN CERDIP
ground strap |
18
PIN CERDIP |
18
PIN CERDIP |
Microsystems International Limited (MIL)
was a canadian company for telecommu-
nication equipment. The first product built in licence was 1103. |
Clone
Package
Comment |
MME
U 808 D |
included
in small GDR computer such as K 1001 and K 1003; manufactured in
N-Channel MOS technology; comparable to Intel 8008 |
 |
| 18
pin DIP |
|
register
structure
pin
layout |
|
| Second source |
Microsystems
International, MME, Siemens |
| Peripherals |
8205:
Decoder, 1 of 8
8212:
8-bit Input / Output Port
8214: Priority Interrupt Control
8216: Bidirectional Bus Driver
8226: Bidirectional Bus Driver
8251: Programmable Communication Interface
8253: Programmable Interval Timer
8255: Programmable Peripheral Interface
8279: Keyboard Display Controller |