Functional Description
• Octal Universal Schmitt Buffer with 3-State Outputs

General
The 74VHC9541FT is an ultra-high-speed octal Schmitt buffer fabricated using silicon-gate CMOS technology.
The 74VHC9541FT combines low power consumption of CMOS with Schottky TTL speeds.
The outputs can be put in the high-impedance state by placing a logic HIGH on the Enable (G) input. The CONT
input determines the logical inversion of data. A logic LOW on the CONT input configures the 74VHC9541FT as
an inverter; a logic HIGH on the CONT input configures the 74VHC9541FT as a buffer.
All the inputs have hysteresis between the positive-going and negative-going thresholds. Thus the 74VHC9541FT
is capable of squaring up transitions of slowly changing input signals and provides an improved noise immunity.
Additionally, all the inputs have a newly developed protection circuit without a diode returned to VCC. This
enables the inputs to be tolerant of up to 5 volts even when power supply is down. The input power-down protection
capability makes the 74VHC9541FT ideal for a wide range of applications, such as interfacing between different
voltages, voltage translation from 5 V to 3 V and battery back-up circuits.

Features
(1) AEC-Q100 (Rev. H) (Note 1)
(2) Wide operating temperature range: Topr = -40 to 125 
(3) High speed: tpd = 5.0 ns (typ.) at VCC = 5.0 V
(4) Low supply current: ICC = 4.0 μA (max) (Ta = 25 )
(5) All inputs are provided with power-down protection.
(6) Symmetrical rise and fall delays: tPLH ≈ tPHL
(7) Wide operating voltage range: VCC(opr) = 2.0 V to 5.5 V