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Quad 2-input positive-NOR buffers with open collector outputs


Package | PIN: D | 14
Temp: C (0 to 70)
Carrier: Cut Tape
Qty Price
1-9 $1.42
10-24 $1.27
25-99 $1.17
100-249 $1.00
250-499 $0.92
500-749 $0.75
750-999 $0.60
1000+ $0.54


  • Package Options Include Plastic “Small Outline Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability


Texas Instruments  SN74LS33DR

These devices contain four independent 2-input NOR buffer gates with open-collector outputs. Open-collector outputs require resistive pull-up to perform logically but can deliver higher VOH levels and are commonly used in wired-AND applications.

The SN5433 and SN54LS33 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN7433, and SN74LS33 are characterized for operation from 0°C to 70°C.