User Manual. 8080 Datasheet

8080 Manual. Datasheet pdf. Equivalent

8080 Datasheet
Recommendation 8080 Datasheet
Part 8080
Description Microcomputer Systems User Manual
Feature 8080; In December 1973 Intel shipped the first 8-bit, N-channel microprocessor, the 8080. Since then it ha.
Manufacture Intel
Datasheet
Download 8080 Datasheet





Intel 8080



Intel 8080
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. First from the beginning.



Intel 8080
CONTENTS
INTRODUCTION
General
.
Advantages of Designing with Microcomputers . .
Microcomputer Design Aids
Application Example . . . . . . . . . . . . . . . . . . .
Application Table .. . . . . . . . . . . . . . . . . . . .
ii
iii
iii
iv
CHAPTER 1-
THE FUNCTIONS OF A COMPUTER
A Typical Computer System
The Architecture of a CPU
Computer Operations. . . . . . . . . . . . . . . . . . .
1-1
1-1
1-3
CHAPTER 2-
THE 8080 CENTRAL PROCESSING UNIT
General . . . . . . . . . . . . . . . . . . . . . . . . . . ..
Architectu.re of the 8080 CPU . . . . . . . . . . . ..
The Processor Cycle . . . . . . . . . . . . . . . . . . ..
Interrupt Sequences. . . . . . . . . . . . . . . . . . ..
Hold Sequences. . . . . . . . . . . . . . . . . . . . . ..
Halt Sequences . . . . . . . . . . . . . . . . . . . . . ..
Start-u p of the 8080 CPU . . . . . . . . . . . . . . ..
2-1
2-2
2-3
2-11
2-12
2-13
2-13
CHAPTER 3-
INTERFACING THE 8080
General . . . . . . . . . . . . . . . . . . . . . . . . . . ..
Basic System Operation
CPU Module Design . . . . . . . . . . . . . . . . . . ..
Interfacing the 8080 to Memory and
I/O Devices
3-1
3-1
3-2
3-6
CHAPTER 4-
INSTRUCTION SET
General . . . . . . . . . . . . . . . . . . . . . . . . . . ..
Data Transfer Group
Arithmetic Group . . . . . . . . . . . . . . . . . . . ..
Branch Group. . . . . . . . . . . . . . . . . . . . . . ..
Stack, I/O and Machine Control Group .. . . . ..
Summary Table. . . . . . . . . . . . . . . . . . . . . ..
4-1
4-4
4-6
4-11
4-13
4-15
CHAPTER 5-
8080 MICROCOMPUTER SYSTEM COMPONENTS
CPU Group
8224 Clock Generator
Functional Description and
System Applications
Data Sheet . . . . . . . . . . . . . . . . . . . . . . ..
8228 System Controller
Functional Description and
System Applications. . . . . . . . . . . . . . . . ..
Data Sheet. . . . . . . . . . . . . . . . . . . . . . ..
S080A Central Processor
Data Sheet . . . . . . . . . . . . . . . . . . . . . . ..
8080A-1 Central Processor (1.3,us)
Data Sheet. . . . . . . . . . . . . . . . . . . . . . ..
8080A-2 Central Processor (1.5,us)
Data Sheet. . . . . . . . . . . . . . . . . . . . . . ..
M80SOA Central Processor (-55° to +125°C)
Data Sheet . . . . . . . . . . . . . . . . . . . . . . ..
5-1
5-4
5-7
5-11
5-13
5-20
5-24
5-29
Intel Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in an Intel product. No other circuit patent licenses are implied.





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