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Intel 8080 manual Ilcl, Ilpc, Ilkc, Ilo, VOH2

Models: 8080

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SILICON GATE MOS 8308

Absolute Maximum Ratings*

Ambient Temperature Under Bias

-25°C to +85°C

Storage Temperature

-65°·Cto-i-150°C

Voltage On Any Pin With Respect

 

To Vaa

-0..3V to 20V

Power Dissipation

1.0 Watt

*COMMENT

Stresses above those listed under"Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other condi- tions above those indicated in' the operational sections of this speci- fication is not implied. Exposure to absolute maximum rating condi- tions for extended periods may affect device reliabil ity.

D.C. and Operating Characteristics

TA = O°C to +70°C, VCC = 5V ±5%; Voo = 12V ±5%, Vas =-5V ±5%,

Vss = OV Unless Otherwise Specified.

Symbol

Parameter

 

 

Limits

 

Min.

TypJ1]

 

 

 

ILl

Input Load Current

-

 

 

 

 

 

 

 

(All Input Pins Except CS, )

 

 

ILCL

Input Load Current on CS,

 

 

ILPC

Input Peak Load Current on CS,

 

 

ILKC

Input Leakage Current on CS,

 

 

ILO

Output Leakage Current

 

 

VIL

Input "Low" Voltage

 

Vss-1

 

VIH

Input "H igh" Voltage

 

3.3

 

VOL

Output "Low" Voltage

 

 

VOH'

Output "High" Voltage

2.4

 

VOH2

Output "High" Voltage

3.7

 

Icc

Power ~upplV Current Vcc

 

.8

100

Power Supply Current Voo

 

32

Iss

Power Supply Current Vss

 

10~A

Po

Power Dissipation

 

 

 

NOTE 1: Typical values for TA = 25° C and nominal supply voltage

Unit

Max.

10 J.l.A

1.6rnA

4 rnA

10 J.l.A

10 J.l.A

0.8V V

Vcc+1.0 V

0.45V V

V

2 rnA

60 rnA

1rnA

775 rnW

Test Conditions

VIN = 0 to 5.25V

VIN = 0.45V

VIN =0.8V to 3.3V VIN = 3.3V to 5.25V Chip Deselected

IOL = 2rnA

IOH = -4rnA

IOH = -1rnA

D.C. OUTPUT CHARACTERISTICS

9 ~A ::: 6to 76°C,

8

~

/

 

7~

6,~I

1

 

TYPICAL J

 

5

'('

 

.1J

4

~

/ /

~~

 

3

 

~J

~~V

 

2

 

I ~ ~V

~

 

o ~V

'"I

 

 

 

SPEC

o.1 .2 .3 .4 .5 .6 .7 .8 .9 1.0

VOL VOLTS

D.C. OUTPUT CHARACTERISTICS

-10

-9

 

 

~,

 

 

 

I

II

 

 

 

-8

 

 

'lil

,

 

 

t = Oto 70°C

 

 

 

 

 

 

 

 

 

 

 

-7

 

 

 

1',

 

 

A

I

I

 

 

 

 

 

 

 

 

 

 

I

I

 

 

 

1-6

 

 

 

 

'I',TYPICAL

 

 

 

 

 

 

 

 

 

" ",'lIlI

 

 

 

~-5

 

 

 

 

 

 

 

 

 

-4

 

/~~

 

 

 

 

 

 

 

 

-3

SPEf

 

~

 

 

 

 

 

 

 

 

 

~Ill..

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-2

 

 

 

 

 

 

 

-........~,....."

 

 

 

-1

 

 

 

 

 

 

 

 

 

 

((

2.4

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4 0

4.2

 

 

 

 

 

 

VOH

VOLTS

 

 

 

 

5-56

Page 119 Page 121
Page 120
Image 120
Intel 8080 manual Ilcl, Ilpc, Ilkc, Ilo, VOH2
Page 119 Page 121

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.