Intersil Corporation CD54ACT257F3A, CD54AC257F3A Datasheet

SEMICONDUCTOR

CD54AC257/3A

CD54ACT257/3A

COMPLETE DATA SHEET

June 1997

Description

The CD54AC257/3A and CD54ACT257/3A are quad 2-input
multiplexers with three-state outputs. These devices utilize
the Harris Advanced CMOS Logic technology. Each of these
devices selects four bits of data from two sources under the
control of a common Select input (S). The Output Enable
(

OE) is active LOW. When OE is HIGH, all of the outputs (Y)
are in the high-impedance state regardless of all other input
conditions.

Moving data from two groups of registers to four common
output buses is a common use of the CD54AC/ACT257/3A.
The state of the Select input determines the particular regis­ter from which the data comes. The CD54AC/ACT257/3A
can also be used as function generators.

The CD54AC257/3A and CD54ACT257/3A are supplied in
16 lead dual-in-line ceramic packages (F suffix).

ACT INPUT LOAD TABLE

INPUT UNIT LOAD (NOTE 1)

Data 0.83

S 1.27

OE 1.27

NOTE:

1. Unit load is ∆ICC limit specified in DC Electrical Specifications
Table, e.g., 2.4mA Max at +25oC.

COMING SOON!

Quad 2-Input Multiplexer

Three-State, Non-Inverting

Functional Diagram

2

1I

0

5

2I

0

11

3I

0

14

4I

0

3

1I

1

6

2I

1

10

3I

1

13

4I

1

S

OE

115

4

1Y

7

2Y

9

3Y

12

4Y

Absolute Maximum Ratings

DC Supply Voltage, VCC. . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +6V

DC Input Diode Current, I

For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA

DC Output Diode Current, I

For VO < -0.5V or VO > VCC + 0.5V. . . . . . . . . . . . . . . . . . . . .±50mA

DC Output Source or Sink Current, Per Output Pin, I

For VO > -0.5V or VO < VCC + 0.5V. . . . . . . . . . . . . . . . . . . . .±50mA

DC VCC or GND Current, ICC or I

For Up to 4 Outputs Per Device, Add ±25mA For Each

Additional Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±100mA

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

IK

OK

O

GND

Power Dissipation Per Package, P

TA = -55oC to +100oC (Package F) . . . . . . . . . . . . . . . . . . 500mW

TA = +100oC to +125oC (Package F) . . . . . . . . Derate Linearly at

Operating Temperature Range, T

Package Type F. . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC

Storage Temperature, T
Lead Temperature (During Soldering)

At Distance 1/16in. ± 1/32in. (1.59mm ± 0.79mm)

From Case For 10s Max . . . . . . . . . . . . . . . . . . . . . . . . . . +265oC

Unit Inserted Into a PC Board (Min Thickness 1/16in., 1.59mm)

With Solder Contacting Lead Tips Only. . . . . . . . . . . . . . . +300oC

STG

D

8mW/oC to 300mW

A

. . . . . . . . . . . . . . . . . .-65oC to +150oC

Recommended Operating Conditions

Supply Voltage Range, V

Unless Otherwise Specified, All Voltages Referenced to GND
TA = Full Package Temperature Range

CD54AC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5V to 5.5V

CD54ACT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V

DC Input or Output Voltage, VI, VO. . . . . . . . . . . . . . . . . . 0V to V

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright

© Harris Corporation 1994

CC

Operating Temperature, TA . . . . . . . . . . . . . . . . . . .-55oC to +125oC

Input Rise and Fall Slew Rate, dt/dv

at 1.5V to 3V (AC Types) . . . . . . . . . . . . . . . . . . . 0ns/V to 50ns/V

at 3.6V to 5.5V (AC Types) . . . . . . . . . . . . . . . . . 0ns/V to 20ns/V

at 4.5V to 5.5V (AC Types) . . . . . . . . . . . . . . . . . 0ns/V to 10ns/V

CC

File Number

1

3903