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Intel 8080 Input Load Current OlEN, CS VF =0.45, Input Load Current All Other Inputs VF =0.45

Models: 8080

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SCHOTTKY BIPOLAR 8216/8226

D.C. AND OPERATING CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS*

 

 

Temperature Under Bias

'

O°C to 70°C

Storage Temperature

 

-6SoC to +150°C

All Output and Supply Voltages

. . . .

.. -O.5V to +7V

All Input Voltages

 

-1.0V to +5.5V

Output Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 125 rnA

*COMMENT: Stresses above those listed under "Absolute Maximum Rating" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or at any other condition above those indicated in the operational sections of this specifi- cation is not implied.

 

 

 

Limits

 

 

 

Symbol

Parameter

Min.

Typ.

Max.

Unit

Conditions

IF1

Input Load Current OlEN, CS

 

-0.15

-.5

mA

VF =0.45

IF2

Input Load Current All Other Inputs

-0.08

-.25

mA

VF =0.45

IR1

Input Leakage Current OlEN, CS

 

 

20

p.A

VR =5.25V

IR2

Input Leakage Current 01 Inputs

 

 

10

p.A

VR =5.25V

Vc

Input Forward Voltage Clamp

 

 

-1

V

le= -5mA

Vil

Input "Low" Voltage

 

 

.95

V

 

VIH

Input "H igh" Voltage

2.0

 

 

V

 

1101

Output Leakage Current

DO

 

20

p.A

Vo = 0.45V/5.25V

(3-State)

DB

 

100

 

 

 

 

 

 

 

8216

 

95

130

rnA

 

IcC

Power Supply Current

 

85

120

rnA

 

 

8226

 

 

VOl1

Output" Low" Voltage

 

0.3

.45

V

DO Outputs IOl=15rnA

 

 

 

 

 

 

DB Outputs IOl=25rnA

 

8216

 

0.5

.6

V

DB Outputs IOl=55mA

VOl2

Output "Low" Voltage

 

0.5

.6

V

DB Outputs IOL=50mA

 

8226

 

VOH1

Output "High" Voltage

3.65

4.0

 

V

DO Outputs IOH = -1 mA

VOH2

Output "High" Voltage

2.4

3.0

 

V

DB Outputs 10H = -1 OmA

'OS

Output Short Circuit Current

-15

-35

-65

mA

DO Outputs Vo==OV,

 

-30

-75

-120

rnA

DB Outputs Vee=5.0V

 

 

NOTE: Typical values are for TA = 25°C, Vee = 5.0V.

5-166

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Intel 8080 manual Input Load Current OlEN, CS VF =0.45, Input Load Current All Other Inputs VF =0.45, Output High Voltage
Page 235 Page 237

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.