ON Semiconductor MC74HC245ADTR2G Octal 3-State Non-Inverting Bus Transceiver

The MC74HC245ADTR2G is a high-performance, octal bus transceiver from ON Semiconductor, designed to facilitate bidirectional communication between two buses. The device is fabricated using silicon gate CMOS technology, which ensures low power consumption while maintaining high-speed operation. This transceiver is a non-inverting variant and comes equipped with 3-state outputs, making it an ideal choice for bus-oriented applications.

The device features eight channels, each capable of transferring data from the A bus to the B bus or vice versa, depending on the logic level at the direction control (DIR) input. The output enable (OE) input, when set to a low logic level, activates the outputs; conversely, when OE is high, the outputs are in a high-impedance state. This high-impedance state is crucial for allowing multiple devices to share the same bus without interference.

ON Semiconductor's MC74HC245ADTR2G operates over a broad voltage range of 2V to 6V, which provides compatibility with TTL-level devices while supporting the low-voltage requirements of modern CMOS technology. This feature makes the transceiver versatile for interfacing with different logic families. The device also boasts a balanced propagation delay and transition times, which contributes to its reliable and predictable performance in high-speed applications.

The package type for this product is TSSOP-20, a space-saving option that is well-suited for densely packed PCBs. The MC74HC245ADTR2G is also available in tape and reel packaging, which simplifies the manufacturing process by enabling automated pick-and-place assembly.

Common applications for the MC74HC245ADTR2G include data bus transceiving, memory switching circuits, and interfacing in microprocessor or microcontroller-based systems. Its robust design and compliance with JEDEC standard no. 7A ensure that this transceiver can meet the stringent requirements of commercial-grade electronic components.

In summary, the ON Semiconductor MC74HC245ADTR2G is a versatile and efficient solution for digital communication between buses, offering low power consumption, compatibility with multiple logic families, and a compact form factor.