74LVC125ABQ集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF中文资料

1. General description

The 74LVC125A is a quad buffer/line driver with 3-state outputs controlled by the output enable

inputs (nOE). A HIGH on nOE causes the outputs to assume a high impedance OFF-state. Inputs

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

translators in mixed 3.3 V and 5 V environments.

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

• Overvoltage tolerant inputs to 5.5 V

• Wide supply voltage range from 1.2 V to 3.6 V

• CMOS low power consumption

• Direct interface with TTL levels

• Complies with JEDEC standard:

• JESD8-7A (1.65 V to 1.95 V)

• JESD8-5A (2.3 V to 2.7 V)

• JESD8-C/JESD36 (2.7 V to 3.6 V)

• IOFF circuitry provides partial Power-down mode operation

• ESD protection:

• HBM JESD22-A114F exceeds 2000 V

• MM JESD22-A115-B exceeds 200 V

• CDM JESD22-C101E exceeds 1000 V

• Multiple package options

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