74LVC2G240DC集成電路（IC）的緩沖器驅(qū)動器接收器收發(fā)器規(guī)格書PDF中文資料

1. General description

The 74LVC2G240 is a dual inverting buffer/line driver with 3-state outputs. The 3-state outputs are

controlled by the output enable inputs 1OE and 2OE. A HIGH level at pins nOE causes the outputs

to assume a high-impedance OFF-state. Schmitt trigger action at all inputs makes the circuit highly

tolerant of slower input rise and fall times.

Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of the

74LVC2G240 as a translator in a mixed 3.3 V and 5 V environment.

It is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the

output, preventing a damaging backflow current through the device when it is powered down.

2. Features and benefits

? Wide supply voltage range from 1.65 V to 5.5 V

? 5 V tolerant input/output for interfacing with 5 V logic

? High noise immunity

? Complies with JEDEC standard:

? JESD8-7 (1.65 V to 1.95 V)

? JESD8-5 (2.3 V to 2.7 V)

? JESD8-B/JESD36 (2.7 V to 3.6 V)

? ESD protection:

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115-A exceeds 200 V

? ±24 mA output drive (VCC = 3.0 V)

? CMOS low power consumption

? Latch-up performance exceeds 250 mA

? Direct interface with TTL levels

? Inputs accept voltages up to 5 V

? Multiple package options

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