The TC74VHCT9541A is an ultra-high-speed octal Schmitt buffer fabricated

using silicon-gate CMOS technology. The TC74VHC9541A combines low

power consumption of CMOS with Schottky TTL speeds.

The input voltage are compatible with TTL output voltage.

This device may be used as a level converter for interfacing 3.3 V to 5 V

system.

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 TC74VHCT9541A

as an inverter; a logic HIGH on the CONT input configures the

TC74VHCT9541A as a buffer.

All the inputs have hysteresis between the positive-going and negativegoing thresholds. Thus the TC74VHCT9541A is capable of squaring up

transitions of slowly changing input signals and provides an improved noise immunity.

Input protection and output circuit ensure that 0 to 5.5 V can be applied to the input and output (Note) pins without regard to the

supply voltage. These structure prevents device destruction due to mismatched supply and input/output voltages such as battery

back up, etc.

Note: Output in off-state

Features

 High speed: tpd = 6.5ns (typ.) at VCC = 5 V

 Low power dissipation: ICC = 4 μA (max) at Ta = 25°C

 Compatible with TTL inputs

VIL = 0.5 V (max)

VIH = 2.1 V (min)

 Power down protection is provided on all inputs.

 Balanced propagation delays: tpLH ∼− tpHL

 Input terminals are at the opposite side of Output terminals