DM54LS253中文资料TRI-STATE® Data Selectors/Multiplexers数据手册TI规格书

描述 Description

General Description
Each of these Schottky-clamped data selectors/multiplexers contains inverters and drivers to supply fully complementary, on-chip, binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two four-line sections. The TRI-STATE outputs 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.

特性 Features

TRI-STATE version of LS153 with same pinout
Schottky-diode-clamped transistors
Permit multiplexing from N-lines to one line
Performs parallel-to-serial conversion
Strobe/output control
High fanout totem-pole outputs
Typical propagation delay
  Data to output 12 ns
  Select to output 21 ns
Typical power dissipation 35 mW
Alternate Military/Aerospace device (54LS253) is available. Contact a National Semiconductor Sales Office/Distributor for specifications.