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CD54ACT257 Datasheet

Quad 2-Input Multiplexer Three-State/ Non-Inverting

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CD54ACT257 pdf
SEMICONDUCTOR
June 1997
COMPLETE DATA SHEET
COMING SOON!
CD54AC257/3A
CD54ACT257/3A
Quad 2-Input Multiplexer
Three-State, Non-Inverting
Description
Functional Diagram
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 regis-
ter 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
2
1I0
5
2I0
11
3I0
14
4I0
3
1I1
6
2I1
10
3I1
13
4I1
S
OE
1 15
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.
4
1Y
7
2Y
9
3Y
12
4Y
Absolute Maximum Ratings
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +6V
DC Input Diode Current, IIK
For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current, IOK
For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . .±50mA
DC Output Source or Sink Current, Per Output Pin, IO
For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . . .±50mA
DC VCC or GND Current, ICC or IGND
For Up to 4 Outputs Per Device, Add ±25mA For Each
Additional Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±100mA
Power Dissipation Per Package, PD
TA = -55oC to +100oC (Package F) . . . . . . . . . . . . . . . . . . 500mW
TA = +100oC to +125oC (Package F) . . . . . . . . Derate Linearly at
8mW/oC to 300mW
Operating Temperature Range, TA
Package Type F . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC
Storage Temperature, TSTG . . . . . . . . . . . . . . . . . . -65oC to +150oC
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
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.
Recommended Operating Conditions
Supply Voltage Range, VCC
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 VCC
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
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright © Harris Corporation 1994
1
File Number 3903


Part Number CD54ACT257
Description Quad 2-Input Multiplexer Three-State/ Non-Inverting
Maker Intersil
Total Page 1 Pages
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