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CD54AC257 Datasheet, PDF (1/1 Pages) Intersil Corporation – Quad 2-Input Multiplexer Three-State, Non-Inverting | |||
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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 sufï¬x).
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 âICC limit speciï¬ed in DC Electrical Speciï¬cations
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 âAbsolute Maximum Ratingsâ 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 speciï¬cation is not implied.
Recommended Operating Conditions
Supply Voltage Range, VCC
Unless Otherwise Speciï¬ed, 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
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File Number 3903
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