Absolute Maximum RATINGS·

8080Al8080A·1/8080A·2

Temperature Under Bias	O°C to +70° C
Storage Temperatu re	-65°C to + 150°C
All Input or Output Voltages
With Respect to Vss	-0.3V to +20V
VCC. Voo and Vss With Respect to Vss	-0.3V to +20V
Power Dissipation	....... 1.5W

D.C. CHARACTERISTICS (TA = O°C to 70o e, Voo =

Vee = +5V ±5%, Vee =

"NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional opera- tion 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 maxi- mum rating conditions for extended periods may affect device reliability.

+12V ±5%,

-5V ±5%, Vss =OV; unless otherwise noted)

Symbol	Parameter	Min.	Typ.	Max.	Unit	Test Condition

VILC	Clock Input Low Voltage	VSS-1		Vss+O.S	V
VIHC	Clock Input High Voltage	9.0		Voo+1	V

VIL	Input Low Voltage	Vss-1		Vss+O.S	V
VIH	Input High Voltage	3.3		Vcc+1	V

VOL	Output Low Voltage			0.45	V	} 10L • 1.9mA on all ou'puts.
VOL	Output Low Voltage			0.45	V	} 10L • 1.9mA on all ou'puts.
VOH	Output High Voltage	3.7			V	IOH = -150I1A.
VOH	Output High Voltage	3.7			V

100 (AV)	Avg. Power Supply Current (Voo )		40	70	mA	} Op.,,';oo
ICC (AV)	Avg. Power Supply Current (Vce)		60	SO	mA	} Op.,,';oo
ICC (AV)	Avg. Power Supply Current (Vce)		60	SO	mA	TCy = .48 psec
						TCy = .48 psec
Iss (AV)	Avg. Power Supply Current (Vss )		.01	1	mA
Iss (AV)	Avg. Power Supply Current (Vss )		.01	1	mA
IlL	Input Leakage			±10	pA	Vss < VIN < VCC

ICL	Clock Leakage			±10	pA	Vss < VCLOCK < VOO
IOL [2)	Data Bus Leakage in Input Mode			-100	pA	VSS<VIN<VSS+O.SV
				-2.0	mA	VSS +O.SV<VIN <VCC
						VSS +O.SV<VIN <VCC
			f
IFL	Address and Data Bus Leakage			+10	pA	VAOOR/OATA = Vec
IFL	During HOLD			-100	pA	VAOOR/OATA = VSS + 0.45V
	During HOLD			-100

CAPACITANCE (TA = 25°C, Vee = Voo =Vss = ov, Vee = -5V)

Symbol	Parameter	Typ.	Max.	Unit	Test Condition

C<I>	Clock Capacitance	17	25	pf	fc = 1 MHz
CIN	Input Capacitance	6	10	pf	Unmeasured Pins

COUT	Output Capacitance	10	20	pf	Returned to Vss

NOTES:

1.The RESET signal must be active for a minimum of 3 clock cycles.

2.~I supply / ~TA = -0.45%fc.

1.5

1.0---- ----r----

0.5

0+25+50+75

AMBIENT TEMPERATURE (OC)

Typical Supply Currentvs. Temperature, Normalizedl3J

6-3	AFN·OO735C

MCS-80/85 specifications

The Intel MCS-80/85 family, introduced in the late 1970s, is a seminal collection of microprocessors that played a pivotal role in the early days of computing. The MCS-80 series, initially targeting embedded systems and control applications, gained remarkable attention due to its innovative architecture and flexible programming capabilities.

The MCS-80 family is anchored by the 8080 microprocessor, which was one of the first fully integrated 8-bit microprocessors. Released in 1974, the 8080 operated at clock speeds ranging from 2 MHz to 3 MHz and featured a 16-bit address bus capable of addressing up to 64KB of memory. The processor’s instruction set included around 78 instructions, providing extensive capabilities for data manipulation, logic operations, and branching.

Complementing the 8080 was a suite of support chips, forming the MCS-80 platform. The most notable among them was the 8155, which integrated a static RAM, I/O ports, and a timer, tailored for ease of designing systems around the 8080. Other support chips included the 8085, which provided improvements with an integrated clock generator, making it compatible with more modern designs and applications.

The MCS-85 series, on the other hand, revolves around the 8085 microprocessor, which provided a more advanced architecture. The 8085 operated at clock speeds of up to 6 MHz and came with a 16-bit address bus, similar to its predecessor. However, it introduced more sophisticated features, including an enhanced instruction set and support for interrupt-driven programming. These enhancements made the 8085 especially appealing to developers working in real-time processing environments.

The MCS-80/85 family utilized NMOS technology, known for its lower power consumption and higher performance compared to previous technologies like TTL. The family’s architecture allowed for easy interfacing with a variety of peripherals, making it a favorite for educational institutions and hobbyists embarking on computer engineering projects.

With its robustness, versatility, and affordability, the Intel MCS-80/85 microprocessors laid the groundwork for many subsequent microcomputer systems and applications. The legacy of this powerful family continues to influence modern microprocessor design, emphasizing the importance of reliable architecture in a rapidly evolving technology landscape.

Intel MCS-80/85 manual Absolute Maximum RATINGS·

Models: MCS-80/85

ABSOLUTE MAXIMUM RATINGS·

D.C. CHARACTERISTICS (TA = O°C to 70o e, Voo =

} Op.,,';oo

ICC (AV)

VAOOR/OATA = VSS + 0.45V

COUT

MCS-80/85 specifications