FEATURES
· Operates From 1.65 V to 3.6 V
· Max tpd 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

DESCRIPTION/ORDERING INFORMATION
This octal bus transceiver is designed for 1.65-V to
3.6-V VCC 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 VCC 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.