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DM74ALS253 - 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer

General Description

This Data Selector/Multiplexer contains full on-chip decoding to select one-of-four data sources as a result of a unique two-bit binary code at the Select Inputs.

Key Features

  • to ensure that select input changes do not cause invalid output transients. Features s Advanced oxide-isolated, ion-implanted Schottky TTL process s Switching performance is guaranteed over full temperature and VCC supply range s Pin and functional compatible with LS family counterpart s Improved output transient handling capability s Output control circuitry incorporates power-up 3-STATE feature Ordering Code: Order Number DM74ALS253M DM74ALS253N Package Number M16A N16E Package.

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer April 1984 Revised February 2000 DM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer General Description This Data Selector/Multiplexer contains full on-chip decoding to select one-of-four data sources as a result of a unique two-bit binary code at the Select Inputs. Each of the two Data Selector/Multiplexer circuits have their own separate Data and Output Control inputs and a non-inverting 3STATE output buffer. The Output Control inputs, when at the high level, place the corresponding output in the high impedance OFF-State. In order to prevent bus access conflicts, output disable times are shorter than output enable times.