CD54HCT258, CD74HCT258
QUADRUPLE 2-LINE TO 1-LINE SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SCHS276A – MAY 2003
D 4.5...
CD54HCT258, CD74HCT258
QUADRUPLE 2-LINE TO 1-LINE SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SCHS276A – MAY 2003
D 4.5-V to 5.5-V VCC Operation D Wide Operating Temperature Range of
–55°C to 125°C
D Balanced Propagation Delays and
Transition Times
D Standard Outputs Drive Up To 10 LS-TTL
Loads
D Significant Power Reduction Compared to
LS-TTL Logic ICs
D Inputs Are TTL-
Voltage Compatible
CD54HCT258 . . . F PACKAGE CD74HCT258 . . . E PACKAGE
(TOP VIEW)
A/B 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 8
16 VCC 15 G 14 4A 13 4B 12 4Y 11 3A 10 3B 9 3Y
description/ordering information
These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G) input is at a high logic level.
To ensure the high-impedance state during power up or power down, G should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE PART NUMBER
TOP-SIDE MARKING
PDIP – E –55°C to 125°C
CDIP – F
Tube Tube
CD74HCT258E
CD74HCT258E
CD54HCT258F3A CD54HCT258F3A
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS G A/B A
OUTPUT
B
Y
H
X
X
X
Z
L
L
L
X
H
L
L
H
X
L
L
H
X
L
H
L
H
X
H
L
Please be aware that an importa...