MOTOROLA CMOS LOGIC DATA

MC14502B

320

Strobed Hex Inverter/Buffer

The MC14502B is a strobed hex buffer/inverter with 3–state outputs, an

inhibit control, and guaranteed TTL drive over the temperature range. The

3–state output simplifies design by allowing a common bus.

• Separate Output Disable Control

• 3–State Output

• Supply Voltage Range = 3.0 Vdc to 18 Vdc

• Capable of Driving 4LSTTL Loads Over the Rated Temperature Range

Symbol

Parameter

Value

Unit

VDD

DC Supply Voltage

– 0.5 to + 18.0

V

Vin, Vout Input or Output Voltage (DC or Transient)

– 0.5 to VDD + 0.5

V

Iin

Input Current (DC or Transient), per Pin

± 10

mA

Iout

Output Current (DC or Transient), per Pin

+ 30

mA

PD

Power Dissipation, per Package†

500

mW

Tstg

Storage Temperature

– 65 to + 150

_C

TL

Lead Temperature (8–Second Soldering)

260

_C

* Maximum Ratings are those values beyond which damage to the device may occur.

†Temperature Derating:

Plastic “P and D/DW” Packages: – 7.0 mW/

_C From 65_C To 125_C

Ceramic “L” Packages: – 12 mW/

_C From 100_C To 125_C

CIRCUIT DIAGRAM

DISABLE

INHIBIT

D1

VDD

VSS

Q1

Other five buffers are identical

TRUTH TABLE

Dn

Inhibit

Disable

Qn

0

0

0

1

1

0

0

0

X

1

0

0

X

X

1

High

Impedance

X = Don’t Care

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

REV 3

1/94

MC14502B

L SUFFIX

CERAMIC

CASE 620

ORDERING INFORMATION

TA = – 55° to 125°C for all packages.

P SUFFIX

PLASTIC

CASE 648

DW SUFFIX

SOIC

CASE 751G

LOGIC DIAGRAM

MC14XXXBCP

Plastic

MC14XXXBCL

Ceramic

MC14XXXBDW

SOIC

14 Q6

11 Q5

9 Q4

2 Q3

7 Q2

5 Q1

3–STATE

OUTPUT

DISABLE

INHIBIT 12

4

D1 3

D2 6

D3 1

D4 10

D5 13

D6 15

VDD = PIN 16

VSS = PIN 8