The TC74HC620P is an octal bus transceiver from Toshiba Semiconductor and Storage, designed for asynchronous two-way communication between data buses. This device features three-state outputs that can be disabled, effectively isolating the buses. The direction of data flow is controlled by a dedicated direction control (DIR) input. When enabled, the device acts as a transceiver, passing data in the direction specified by DIR. When disabled, the outputs are high-impedance, preventing the device from loading the buses.

Applications

• Data bus isolation
• Bidirectional data transfer
• Memory interface
• Peripheral interface
• Microprocessor systems

Features

• High-Speed Operation: tpd = 13 ns (typ.) at VCC = 5 V
• Low Power Dissipation: ICC = 4 μA (max) at Ta = 25°C
• High Output Drive Capability: Can drive up to 15 LSTTL Loads
• Three-State Outputs: Allows for bus isolation
• Wide Operating Voltage Range: VCC = 2 V to 6 V
• Pin and Function Compatible with 74LS620

Benefits

• Efficient data transfer between buses with minimal delay.
• Reduced power consumption contributes to energy savings and improved system efficiency.
• The high output drive capability allows the device to drive a large number of loads without signal degradation.
• Bus isolation prevents loading effects and ensures data integrity.
• Versatile for a wide range of applications due to the wide operating voltage range.
• Simplified design and integration due to compatibility with industry-standard 74LS620.

The TC74HC620P is supplied in a DIP-20 package. It operates over a temperature range of -40°C to +85°C. The device is suitable for applications where high-speed bidirectional data transfer and bus isolation are necessary.