SN74LVCZ245A Datasheet | Texas Instruments

description /ordering information This octal bus transceiver is designed for 2.7-V to 3.6-V VCC operation. The SN74LVCZ245A is designed for asynchronous munication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. When VCC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict. ORDERING INFORMATION PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP - N Tube of 20 SN74LVCZ245AN SN74LVCZ245AN SOIC - DW Tube of 25 Reel of 2000 SN74LVCZ245ADW SN74LVCZ245ADWR LVCZ245A - NS - 40°C to 85°C SSOP - DB Reel of 2000 Reel of 2000 SN74LVCZ245ANSR SN74LVCZ245ADBR LVCZ245A CV245A Tube of 70 SN74LVCZ245APW CV245A TSSOP - PW Reel of 2000 SN74LVCZ245APWR CV245A Reel of 250 SN74LVCZ245APWT CV245A † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at .ti./sc/package....