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Dual 1-Of-4 Data Selectors/Multiplexers With 3-State Outputs


Package | PIN: D | 16
Temp: C (0 to 70)
Carrier: Partial Tube
Qty Price
1-9 $4.76
10-24 $4.28
25-99 $4.00
100-249 $3.59
250-499 $3.35
500-749 $2.91
750-999 $2.52
1000+ $2.47


  • 3-State Versions of the ´ALS153 and SN74AS153
  • Permits Multiplexing From n Lines to
    One Line
  • Performs Parallel-to-Serial Conversion
  • Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

Texas Instruments  SN74AS253AD

These data selectors/multiplexers contain inverters and drivers to supply full binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two 4-line sections.

The 3-state outputs can interface with and drive 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 drives the bus line to a high or low logic level. Each output has its own output-enable () input. The output is disabled when is high.

The SN54ALS253 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS253 and SN74AS253A are characterized for operation from 0°C to 70°C.



Select inputs A and B are common to both sections.