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In December 1973 Intel shipped the first 8-bit, N-channel microprocessor,
the 8080. Since then
it
has
become the most widely
used
microprocessor in
the industry. Applications
of
the 8080
span
from large, intelligent systems
terminals
to
decompression computers
for
deep
sea
divers.
This 8080 Microcomputer Systems User's Manual presents all
of
the
8080 system components. Over twenty-five devices
are
described in detail.
These
new devices further enhance the 8080 system:
8080A - 8-Bit Central Processor
Unit
Functionally and Electrically Compatible with
the
8080.
TTL
Drive Capability.
Enhanced Timing.
8224 - Clock Generator
for
8080A.
Single
16
Pin (DIP) Package.
Auxiliary Timing Functions.
Power-On Reset.
8228 - System Controller
for
8080A.
Single 28 Pin (DIP) Package.
Single
Interrupt
Vector (RST 7).
.Multi-Byte Interrupt Instruction Capability (e.g. CALL).
Direct Data and Control
Bus
Connect
to
all
8080
System. I/O
and
Memory Components.
8251 - Programmable Communication Interface.
ASYNC
or
SYNC (including
IBM
bi·SYNC).
Single
28
Pin Package.
Single +5 Volt Power Supply.
8255 - Programmable Peripheral Interface.
Three 8-Bit Ports.
Bit
Set/Reset
Capability.
Interrupt Generation.
Single
40
Pin Package.
Single
+5
Volt Power Supply.
In addition, new memory components include: 8708,
8K
Erasable PROM;
8316A, High Density
Mask
ROM; and 5101,
Low
Power
CMOS
RAM.
intel®
Microcomputers. Firstfrom
the
beginning.