2.5-V/3.3-V 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTSThe ALVTH16245 devices are 16-bit (dual-octal)
noninverting 3-state transceivers designed for
2.5-V or 3.3-V VCC operation, but with the
capability to provide a TTL Interface to a 5-V
system environment.
These devices CAN be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission
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 that the buses are effectively
isolated.
These devices are 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.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid Logic level. Use of pullup
or pulldown resistors with the bus-hold circuitry is not recommended.
When VCC is between 0 and 1.2 V, the devices are in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.2 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. By Texas Instruments
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SN54ALVTH16245 Pb-Free | SN54ALVTH16245 Cross Reference | SN54ALVTH16245 Schematic | SN54ALVTH16245 Distributor |
SN54ALVTH16245 Application Notes | SN54ALVTH16245 RoHS | SN54ALVTH16245 Circuits | SN54ALVTH16245 footprint |