SN74LS245N(74LS245) BUS Transceiver

The SN74LS245N is an octal bus transceiver from the 74LS series of TTL logic ICs. It features eight bidirectional buffers designed specifically for asynchronous communication between data buses. The transceiver operates in both send and receive modes, allowing data transfer in both directions. The direction control input determines the direction of data flow, and the output enable input can disable the transceivers to isolate the buses. This IC is ideal for bus-oriented systems and applications requiring bidirectional data flow.

Key Features:

• Octal bidirectional bus transceiver
• Three-state outputs for bus-oriented applications
• High-speed operation
• Direction control for data flow management
• Output enable for bus isolation
• Standard 20-pin DIP package
• TTL-compatible inputs and outputs

Technical Specifications:

• Supply Voltage (VCC): 4.75V to 5.25V
• High-Level Input Voltage (VIH): 2V (min)
• Low-Level Input Voltage (VIL): 0.8V (max)
• High-Level Output Voltage (VOH): 2.7V (min) at IOH = -3 mA
• Low-Level Output Voltage (VOL): 0.4V (max) at IOL = 24 mA
• Input Current (II): 0.1 mA (max)
• Output Current (IO): 24 mA (max per output)
• Propagation Delay Time (tpd): 14 ns (typical)
• Operating Temperature Range: 0°C to +70°C
• Package: 20-pin DIP

Applications:

• Bus-Oriented Systems: Facilitates data transfer between data buses in microprocessor and computer systems.
• Bidirectional Data Flow: Enables bidirectional communication in systems requiring data flow in both directions.
• Peripheral Interfaces: Interfaces peripheral devices to data buses.
• Memory Addressing: Assists in memory addressing and data transfer operations.
• Digital Systems: Used in digital systems for data routing and buffering.
• Industrial Automation: Implements control and communication functions in industrial systems.

Datasheet:
For detailed technical information, refer to the SN74LS245N Datasheet.