1 Features

• AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

– Device HBM ESD classification level 2

– Device CDM ESD classification level C6

• Operating range 2V to 5.5V VCC

• Latch-up performance exceeds 250mA per JESD

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2 Applications

• Enable or disable a digital signal

• Hold a signal during controller reset

• Debounce a switch

3 Description

The SN74AHC245-Q1 octal bus transceiver

is designed for asynchronous two-way

communication between data buses. The controlfunction

implementation minimizes external timing

requirements. This device allows 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 effectively are 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.