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Texas Instruments SN74HC240 Octal Buffers/Line Drivers

Texas Instruments SN74HC240 Octal Buffers/Line Drivers are explicitly designed to improve the performance and density of clock drivers, 3-state memory address drivers, and bus-oriented receivers and transmitters. The Texas Instruments SN74HC240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is high, the outputs are in the high-impedance state. When OE is low, the device passes inverted data from the A inputs to the Y outputs.

Features

  • Wide operating voltage range of 2V to 6V
  • High-current outputs drive up to 15 LSTTL loads
  • Low power consumption, 80µA max ICC
  • Typical tpd = 9ns
  • ±6mA output drive at 5V
  • The low input current of 1µA max
  • 3-state outputs drive bus lines or buffer memory address registers

Logic Diagram (Positive Logic)

Block Diagram - Texas Instruments SN74HC240 Octal Buffers/Line Drivers

Related Development Tool

Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM)

Generic evaluation module developed to support any TI logic leaded device in a 14 to 24 pin count.

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Published: 2024-09-20 | Updated: 2025-02-27