1. General description

The 74AHCT240 is an 8-bit inverting buffer/line driver with 3-state outputs. This device can be

used as two 4-bit buffers or one 8-bit buffer. It features two output enables (1OE and 2OE),

each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a

high-impedance OFF-state. Inputs are over voltage tolerant. This feature allows the use of these

devices as translators in mixed voltage environments.

2. Features and benefits

• Balanced propagation delays

• All inputs have a Schmitt-trigger action

• Inputs accepts voltages higher than VCC

• Operates with TTL input levels

• ESD protection:

• HBM JESD22-A114F exceeds 2000 V

• CDM JESD22-C101D exceeds 1000 V

• Multiple package options

• Specified from -40 °C to +85 °C and from -40 °C to +125 °C