Dual Supply Octal Translating Transceiver

with 3−State Outputs

The 74LVX4245 is a 24−pin dual−supply, octal translating transceiver that is designed to interface between a 5.0 V bus and a 3.0 V bus in a mixed 3.0 V / 5.0 V supply environment such as laptop computers using a 3.3 V CPU and 5.0 V LCD display. The A port interfaces with the 5V bus; the B port interfaces with the 3.0 V bus.

The Transmit/Receive (T/R) input determines the direction of data flow. Transmit (active−High) enables data from the A port to the B port. Receive (active−Low) enables data from the B port to the A port. The Output Enable (OE) input, when High, disables both A and B ports by placing them in 3−State.

Features

• Bi−directional Interface Between 5.0 V and 3.0 V Buses

• Control Inputs Compatible with TTL Level

• 5.0 V Data Flow at A Port and 3.0 V Data Flow at B Port

• Outputs Source/Sink 24 mA at 5.0 V Bus and 12 mA at 3.0 V Bus

• Guaranteed Simultaneous Switching Noise Level and Dynamic Threshold Performance

• Available in SOIC and TSSOP Packages

• Functionally Compatible with the 74 Series 245

• These Devices are Pb−Free and are RoHS Compliant