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Features:
Schottky-clamped for significant improvement in A-C performance
Provides bus interface from multiple sources in high-performance systems
Average propagation delay from data input 4.8 ns
Typical power dissipation
16 pin DIP. Manufactured with National.
A11083
A11083 - DM74S257N 3-State Quad Data Selector/Multiplexer (National)
Detailed Description
These Schottky-clamped high-performance multiplexers feature 3-state outputs that can interface directly with data lines of bus-organized systems. With all but one of the common outputs disabled (at a high impedance state), the low impedance of the single enabled output will drive the bus line to a HIGH or LOW logic level. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output enable circuitry is designed such that the output disable times are shorter than the output enable times. This 3-state output feature means that n-bit (paralleled) data selectors with up to 258 sources can be implemented for data buses. It also permits the use of standard TTL registers for data retention throughout the system.Features:
Schottky-clamped for significant improvement in A-C performance
Provides bus interface from multiple sources in high-performance systems
Average propagation delay from data input 4.8 ns
Typical power dissipation
16 pin DIP. Manufactured with National.
A11083
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov - Why is this here?