74ls257.pdf part of datasheets 74ls257 74ls257.pdf, . Electronic Components Datasheets Various datasheets 74ls257.pdf text manual preview

Text preview for : 74ls257.pdf part of datasheets 74ls257 . Electronic Components Datasheets Various datasheets 74ls257.pdf

Back to : 74ls257.pdf | Home

SN54/74LS257B
QUAD 2-INPUT MULTIPLEXER SN54/74LS258B
WITH 3-STATE OUTPUTS
The LSTTL / MSI SN54 / 74LS257B and the SN54 / 74LS258B are Quad
2-Input Multiplexers with 3-state outputs. Four bits of data from two sources
can be selected using a Common Data Select input. The four outputs present QUAD 2-INPUT MULTIPLEXER
the selected data in true (non-inverted) form. The outputs may be switched to WITH 3-STATE OUTPUTS
a high impedance state with a HIGH on the common Output Enable (EO) In-
put, allowing the outputs to interface directly with bus oriented systems. It is LOW POWER SCHOTTKY
fabricated with the Schottky barrier diode process for high speed and is com-
pletely compatible with all Motorola TTL families.