74LVC1G19GS集成電路（IC）的信號(hào)開(kāi)關(guān)多路復(fù)用器解碼器規(guī)格書(shū)PDF中文資料

1. General description

The 74LVC1G19 is a 1-of-2 decoder/demultiplexer with a common output enable. This device

buffers the data on input A and passes it to the outputs 1Y (true) and 2Y (complement) when the

enable (E) input signal is LOW. A HIGH E causes both outputs to assume a HIGH state.

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

in a mixed 3.3 V and 5 V environment.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

This device is fully specified for partial power down applications using IOFF. The IOFF circuitry

disables the output, preventing the potentially 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

? Overvoltage tolerant inputs to 5.5 V

? High noise immunity

? ±24 mA output drive (VCC = 3.0 V)

? CMOS low power dissipation

? Latch-up performance exceeds 250 mA

? Direct interface with TTL levels

? IOFF circuitry provides partial Power-down mode operation

? Complies with JEDEC standard:

? JESD8-7 (1.65 V to 1.95 V)

? JESD8-5 (2.3 V to 2.7 V)

? JESD8C (2.7 V to 3.6 V)

? JESD36 (4.5 V to 5.5 V)

? ESD protection:

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115-A exceeds 200 V

? Multiple package options

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