The TC74ACT14 is a high-speed CMOS Schmitt trigger inverter from Toshiba Semiconductor and Storage. This device features hysteresis, providing improved noise immunity and enabling reliable operation in noisy environments. It's designed for applications requiring signal conditioning, pulse shaping, and oscillator circuits.
Applications:
- Wave shaping
- Hysteresis comparators
- Oscillator circuits
- Clock signal conditioning
- Logic level translation
Features:
- High-speed operation: tpd = 5 ns (typ.) at VCC = 5V
- Schmitt trigger inputs with hysteresis: VT+ = 1.7V (typ.), VT- = 0.9V (typ.) at VCC = 5V
- Wide operating voltage range: VCC = 4.5V to 5.5V
- Low power consumption: ICC = 4 μA (max) at VCC = 5V
- Output drive capability: 15 LSTTL loads
- Package: DIP14, SO14
Benefits:
- Improved noise immunity due to hysteresis, preventing false triggering.
- High-speed switching allows for fast signal processing.
- Low power consumption reduces energy costs and extends battery life in portable applications.
- Wide operating voltage range provides flexibility in system design.
- High output drive capability enables driving multiple logic gates.
Additional Details:
The TC74ACT14 contains six independent inverters with Schmitt trigger inputs. The Schmitt trigger action provides different threshold levels for rising and falling input signals, resulting in hysteresis. This hysteresis effectively filters out noise and prevents the output from oscillating when the input signal is slowly changing or contains noise. The device operates with a supply voltage range of 4.5V to 5.5V and is characterized for operation over the temperature range of -40°C to +85°C. The input protection circuitry ensures that the device can tolerate input voltages outside the supply voltage range. The TC74ACT14 is available in DIP14 and SO14 packages, providing flexibility in mounting options.