onsemi (Ansemi)

SOIC-20-300mil

Tube

36

The VHCT245A is an advanced high-speed CMOS octal bus transceiver fabricated on a silicon-gate CMOS process. It achieves high operating speeds similar to equivalent bipolar Schottky TTLs while maintaining CMOS low power consumption. VHCT245A is suitable for bidirectional asynchronous communication between data buses. The direction of data transmission is determined by the T/R input level. An enable input can be used to disable the device, effectively isolating the bus. Protection circuitry ensures that 0V to 7V is applied to the input and output (Note 1) pins regardless of the supply voltage. These circuits prevent device damage due to mismatched supply and input/output voltages. The device can be used as an interface between 5V and 3V systems as well as two power systems such as battery backup.