onsemi (Ansemi)

TSSOP-24

Tube

62

The 74LVX4245 is a 24-pin dual-supply octal-translation transceiver intended for interfacing between a 5-V bus and a 3-V bus in a mixed 3-V/5-V supply environment such as a notebook computer with a 3.3-V CPU and a 5-V LCD display. A port is connected to 5V bus; B port is connected to 3V bus. The transmit/receive (T/Rbar) input determines the direction of data flow. Transmit (active high) enables data transfer from the A port to the B port. Receive (active low) enables data transfer from the B port to the A port. The Output Enable (OEbar) input, when high, puts both Port A and Port B in a 3-state, thereby disabling both.