SN74ALVCH245 - Octal Bus Transceiver With 3-State Outputs

This octal bus transceiver is designed for 1.65-V to 3.6-V V_CC operation.

The SN74ALVCH245 is designed for asynchronous communication 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.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

Products containing the "SN74ALVCH245" keyword are: SN74ALVCH245DGVR , SN74ALVCH245DGVR , SN74ALVCH245DW , SN74ALVCH245DW , SN74ALVCH245DWR , SN74ALVCH245NSR , SN74ALVCH245NSR , SN74ALVCH245NSRE4 , SN74ALVCH245NSRE4 , SN74ALVCH245NSRG , SN74ALVCH245PW , SN74ALVCH245PW , SN74ALVCH245PWG4 , SN74ALVCH245PWR , SN74ALVCH245PWR , SN74ALVCH245PWR VB245 , SN74ALVCH245PWRG4

• Operates From 1.65 V to 3.6 V
• Max t_pd of 3.4 ns at 3.3 V
• ±24-mA Output Drive at 3.3 V
• Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II