74VHC9541FT

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 (overline)) 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.

Applications

• interfacing between different voltages
• voltage translation from 5 V to 3 V
• battery back-up circuits

Key features

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