Intel mcs-48 manual Operating Characteristics, Symbol Parameter Min Max Unit

Models: mcs-48

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8049/8039

ABSOLUTE MAXIMUM RATINGS·

AmbientTemperatureUnderBias

........ 0°Cto70°C

Storage Temperature

-65° C to +150° C

Voltage on Any Pin With

 

Respectto Ground

-0.5V to +7V

Power Dissipation

1.5 Watt

D.C. AND OPERATING CHARACTERISTICS

'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 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.

TA = o°c to 70"C, Vee = Voo = +5V ±10%, Vss = ov

 

 

 

Limits

 

 

 

Symbol

Parameter

Min.

Typ.

Max.

Unit

Test Conditions

Vil

Input Low Voltage

-0.5

 

0.8

V

 

VIH

Input High Voltage

 

 

 

 

 

 

(All Except XTAL1, XTAL2, RESET)

2.0

 

Vee

V

 

VIH1

Input High Voltage (RESET, Xl, X2)

3.8

 

Vee

V

 

VOL

Output Low Vo Itage

 

 

 

 

 

 

(BUS, RD, WR, PSEN, ALE)

 

 

0.45

V

IOl = 2.0mA

VOLl

Output Low Voltage

 

 

 

 

 

 

(All Other Outputs Except PROG)

 

 

0.45

V

IOl = 1.6mA

VO L2

Output low Voltage (PROG)

 

 

0.45

V

IOl = 1.0mA

VOH

Output High Voltage

 

 

 

 

 

 

(BUS, RD, WR, PSEN, ALE)

2.4

 

 

V

IOH = -100/.LA

VOH1

Output High Voltage

 

 

 

 

 

 

(All Other Outputs)

2.4

 

 

V

IOH = -50/.LA

IlL

Input Lea kage Current

 

 

 

 

 

 

(Tl, INT)

 

 

±10

/.LA

VSS';;VIN';;Vee

IOl

Output Leakage Current (Bus, TO)

 

 

 

 

 

 

(High Impedance State)

 

 

±10

/.LA

Vss + 0.45';;VIN .;; Vee

100

Power Down Supply Current

 

25

50

mA

TA = 25°C

loo+lee

Tota I Su pply Current

 

100

170

mA

TA = 25°C

A.C. CHARACTERISTICS TA = o°c to 70°C, Vee = Voo = +5V ±10%, Vss = ov

Symbol

Parameter

Min.

Max.

Unit

Conditions (Note 2)

tll

ALE Pulse Width

200

 

ns

 

tAL

Address Setup to ALE

120

 

ns

 

tLA

Address Hold from ALE

80

 

ns

 

tcc

Control Pulse Width (PSEN, RD, WR)

400

 

ns

 

tow

Data Set·Up Before WR

420

 

ns

 

two

Data Hold After WR

80

 

ns

CL=20pF

tey

Cycle Time

2.5

15.0

I's

llMHz XTAL

tOR

Data Hold

0

200

ns

 

t RO

PSEN, RD to Data In

 

400

ns

 

tAW

Address Setup to WR

2~0

 

ns

 

tAO

Address Setup to Data In

 

600

ns

 

tAFC

Address Float to RD, PSEN

-40

 

ns

 

Noles: 1. 8039·6specifications are also valid for 8049/8039 operating at 6MHz.

2. Control Outputs:

CL = 80pF

BUS Outputs:

CL = 150pF

6-39

AFN-00191A-04

Page 182
Image 182
Intel mcs-48 manual Operating Characteristics, Symbol Parameter Min Max Unit