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