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7407 Buffer


These monolithic hex buffers/drivers feature high-voltage open-collector outputs to interface with high-level circuits or for driving high-current loads. They are also characterized for use as buffers for driving TTL inputs. The ′LS07 has a rated output voltage of 30 V and the ′LS17 has a rated output voltage of 15 V. The maximum sink current is 30 mA for the SN54LS07 and 40 mA for the SN74LS07 and SN74LS17.These circuits are compatible with most TTL families. Inputs are diode-clamped to minimize transmission-line effects, which simplifies design.Typical power dissipation is 140 mW and average propagation delay time is 12 ns.The SN54LS07 is characterized over the full military temperature range of –55°C to 125°C. The SN74LS07 and SN74LS17 are characterized for operation from 0°C to 70°C. CityTech BD


  • Converts TTL-Voltage Levels to MOS Levels
  • High Sink-Current Capability
  • Input Clamping Diodes Simplify System Design
  • Open-Collector Driver for Indicator Lamps and Relays
  • Package Options Include “Small Outline”Packages, Ceramic Chip Carriers, and Standard and Ceramic 300-mil DIPs


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