SN74AS250A

Pinout




Specifications

Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . 7 V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .  . . . . . . . . . . . . . . . . . . 7 V
Operating free-air temperature range, TA:SN54AS250A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 125°C
                                                                  SN74AS250A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . 65°C to 150°C

Description

  The 4AS250A devices provide full binary decoding to select 1-of-16 data inputs or use sources as an input with an inverting W output. The selected sources are buffered with symmetrical propagation delay times. This reduces the possibility of transients occurring at the output.
  A SN74AS250A buffered output-enable (OE) input can be used for n-line to 1-line cascading. Taking OE high places the output in the high-impedance state. In the high-impedance state, the output neither loads nor drives the bus lines significantly.
  OE does not affect the internal operations of the data selector/multiplexer. New data can be set up while the outputs are disabled.
  The SN54AS250A is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74AS250A is characterized for operation from 0°C to 70°C.