SI~ICON GATE MOS ROM 8316A

ABSOLUTE MAXIMUM RATINGS·

Ambient Temperature Under Bias

 

O°C to 70°C

Storage Temperature

-65°C to +150°C

Voltage On Any Pin With Respect

 

 

To Ground

.. -0.5V to +7V

Power Dissipation

~

. . 1.0 Watt

*COMMENT: Stresses above those Iisted 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 conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

D.C. AND OPERATING CHARACTERISTICS.

T A = O°C to +70°C, Vee = 5V ±5% unless otherwise specified

 

 

 

 

LIMITS

 

 

SYMBOL

PARAMETER

MIN. TYP.(1)

MAX.

UNIT

 

 

 

ILl

Input Load Current

 

10

IlA

 

(All Input Pins)

 

 

 

ILOH

Output Leakage Current

 

10

IlA

ILOL

Output Leakage Current

 

-20

IlA

ICC

Power Supply Current

40

98

mA

VIL

Input" Low" Voltage

-0.5

'0.8

V

VIH

Input "High" Voltage

2.0

VCC+ 1.OV

V

VOL

Output" Low" Voltage

 

0.45

V

VOH

Output "H igh" Voltage

2.2

 

V

(1) Typical values for T A = 25°e and nominal supply voltage.

TEST CONDITIONS

VIN = 0 to 5.25V

CS = 2.2V, VOUT = 4.0V CS = 2.2V, VOUT = 0.45V

All inputs 5.25V Data Out Open

IOl = 2.0 mA

I0 H = -1 00 ,uA

A.C. CHARACTERISTICS

TA = O°C to +70°C, Vee = +5V ±5% unless otherwise specified

 

 

 

 

 

 

 

LIMITS

 

UNIT

SYMBOL

PARAMETER

MIN.

Typ.(1)

MAX.

 

 

 

tA

Address to Output Delay Time

 

400

850

nS

teo

Chip Select to Output Enable Delay Time

 

 

300

nS

tOF

Chip Deselect to Output Data Float Delay Time

0

 

300

nS

CONDITIONS OF TEST FOR

CAPACITANCE(2) TA = 25°C, f = 1 MHz

A.C. CHARACTERISTICS

 

Output Load ... 1 TTL Gate, and CLOAD = 100 pF Input Pulse Levels . . . . . . . . . . . . . . . 0.8 to 2.0V Input Pulse Rise and Fall Times. (10% to 90%) 20 nS Timing Measurement Reference Level

Input

1.5V

Output

0.45V to 2.2V

SYMBOL

CIN

COUT

TEST

'AllPins Except Pin Under Test Tied to AC Ground

All Pins Except Pin Under Test Tied to AC Ground

LIMITS

TYP. MAX.

4 pF

10 pF

8 pF

15 pF

(2) This parameter is periodically sampled and is not 1000A» tested.

5-62

Page 125 Page 127
Page 126
Image 126
Intel 8080 manual 400, Conditions of Test for, CAPACITANCE2 TA = 25C, f = 1 MHz
Page 125 Page 127

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.
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