127, Peri pherals, Chapter Packaging Information

ROMs

8702A Erasable PROM (256 x 8)

Data Sheet . . . . . . . . . . . . . . . . . . . . . . .. 5-37

8708/8704 Erasable PROM (1 K x 8)

Data Sheet . . . . . . . . . . . . . . . . . . . . . . .. 5-45

8302 Mask ROM (256 x 8)

Data Sheet . . . . . . . . . . . . . . . . . . . . . . .. 5-51

8308 Mask ROM (1 K x 8)

Data Sheet . . . . . . . . . . . . . . . . . . . . . . .. 5-59

8316A Mask ROM (2K x 8)

Data Sheet . . . . . . . . . . . . . . . . . . . . . . .. 5-61

RAMs

8101-2 Static RAM (256 x 4)

Data Sheet. . . . . . . . . . . . . . . . . . . . . . .. 5-67

8111-2 Static RAM (256 x 4)

Data Sheet . . . . . . . . . . . . . . . .. . . . . . .. 5-71

8102-2 Static RAM (1K x 1)

Data Sheet05-75

8102A-4 Static RAM (1 K x 1)

Data Sheet . . . . . . . . . . . . . . . . . . . . . . .. 5-79

81078-4 Dynamic RAM (4K x 1)

Data Sheet. . . . . . . . . . . . . . . . . . . . . . .. 5-83

5101 Static CMOS RAM (256 x 4)

Data Sheet . . . . . . . . . . . . . . . . . . . . . . .. 5-91

8210 Dynamic RAM Driver

Data Sheet . . . . . . . . . . . . . . . . . . . . . . .. 5-95

8222 Dynamic RAM Refresh Controller

New Product Announcement . . . . . . . . . . .. 5-99

I/O

8212 8-Bit I/O Port
Functional Description	5-101
System Applications of the 8212	5-103
Data Sheet	5-109

8255 Programmable Peripheral Interface
Basic Functional Description	. . . .	5-113
Detailed Operationa-I Description	~ . . .	5-116
System Appl ications of the 8255	. . . .	5-127
Data Sheet	. . . .	5-1 30
8251 Programmable Communication Interface
Basic Functional Description	. . . .	5-135
Detailed Operational Description		5-139
System Applications of the 8251		5-143
Data Sheet	. . . .	5-144

Peri pherals

8205 One of 8 Decoder
Functional Description		5-147
System Applications of the 8205		5-149
Data Sheet		5-151
8214 Priority Interrupt Control Unit
Interrupts jn Microcomputer Systems		5-153
Functional Description	. . . . . . . . . . .	5-155
System Appl ications of the 8214		5-1 57
Data Sheet		5-160
8216/8226 4-Bit Bi-Directional Bus Driver
Functional Description		5-163
System Applications of the 8216/8226		5-165
Data Sheet	. . . . . . . . . . .	5-166
Coming Soon
8253 Programmable Interval Timer		5-169
8257 Programmable DMA Controller		5-171
8259 Programmable Interrupt Controller		5-173
CHAPTER 6-
PACKAGING INFORMATION....	•	6-1

8080 specifications

The Intel 8085 and 8080 microprocessors were groundbreaking innovations in the world of computing, paving the way for future microprocessor development and personal computing.

The Intel 8080, introduced in 1974, was an 8-bit microprocessor that played a fundamental role in the early days of personal computing. With a 16-bit address bus, it had the capability to address 64 KB of memory. Running at clock speeds of 2 MHz, the 8080 was notable for its instruction set, which included 78 instructions and 246 opcodes. It supported a range of addressing modes including direct, indirect, and register addressing. The 8080 was compatible with a variety of peripherals and played a crucial role in the development of many early computers.

The microprocessor's architecture was based on a simple and efficient design, making it accessible for hobbyists and engineers alike. It included an 8-bit accumulator, which allowed for data manipulation and storage during processing. Additionally, the 8080 featured registers like the program counter and stack pointer, which facilitated program flow control and data management. Its ability to handle interrupts also made it suitable for multitasking applications.

The Intel 8085, introduced in 1976, was an enhancement of the 8080 microprocessor. It maintained a similar architecture but included several key improvements. Notably, the 8085 had a built-in clock oscillator, simplifying system design by eliminating the need for external clock circuitry. It also featured a 5-bit control signal for status line management, which allowed for more flexible interfacing with peripheral devices. The 8085 was capable of running at speeds of up to 3 MHz and had an extended instruction set with 74 instructions.

One of the standout features of the 8085 was its support for 5 extra instructions for stack manipulation and I/O operations, which optimized the programming process. Additionally, it supported serial communication, making it suitable for interfacing with external devices. Its 16-bit address bus retained the 64 KB memory addressing capability of its predecessor.

Both the 8080 and 8085 microprocessors laid the groundwork for more advanced microprocessors in the years that followed. They demonstrated the potential of integrated circuits in computing and influenced the design and architecture of subsequent Intel microprocessors. Their legacy endures in the way they revolutionized computing, making technology accessible to a broader audience, and their influence is still felt in the design and architecture of modern microprocessors today.

Intel 8080 manual 127, Peri pherals, Chapter Packaging Information

Models: 8080

5-127

Peri pherals

CHAPTER 6-

PACKAGING INFORMATION....

8080 specifications