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Product Detailed Parameters
- Description：IC INVERT SCHMITT 6CH 1-INP 14SO
- Series：74HCT
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：Inverter
- Number of Circuits：6
- Number of Inputs：1
- Features：Schmitt Trigger
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Max)：2 µA
- Current - Output High, Low：4mA, 4mA
- Input Logic Level - Low：0.5V ~ 0.6V
- Input Logic Level - High：1.9V ~ 2.1V
- Max Propagation Delay @ V, Max CL：34ns @ 4.5V, 50pF
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Supplier Device Package：14-SO
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Grade：-
- Qualification：-
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Overview
The Nexperia 74HCT14D,653 is a hex inverting Schmitt trigger integrated circuit manufactured by Nexperia USA Inc. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features six independent inverters with Schmitt-trigger inputs, packaged in a 14-lead plastic small outline package (SO14) designated as SOT108-1.
Feature Summary
- Schmitt-trigger inputs transform slowly changing signals into sharply defined jitter-free outputs
- Reduced input threshold levels enable direct interfacing to TTL logic levels
- Input clamp diodes allow the use of current limiting resistors for voltages exceeding VCC
Applications
- Wave and pulse shapers
- Astable multivibrators
- Monostable multivibrators
Procurement Notes
Verify that the specific part number matches the HCT logic family requirements rather than HC variants. Confirm the SO14 package designation aligns with PCB footprint specifications. Ensure environmental compliance documentation corresponds to the manufacturing batch. Validate operating conditions against system power supply constraints.
Selection Notes
Select this component when TTL compatibility is required alongside CMOS low power dissipation characteristics. The wide hysteresis provided by Schmitt triggers makes it suitable for noisy environments or slow signal transitions. Verify that the 4.5 V to 5.5 V supply range meets the target system voltage specifications.
Part Context
This component belongs to the 74HCT series, which bridges the gap between standard CMOS logic and Transistor-Transistor Logic (TTL). It provides compatible input thresholds while maintaining the low power consumption advantages of CMOS technology. The D suffix indicates the specific SO14 surface-mount package configuration.
Replacement Considerations
74HC14D,653
FAQ
How does the device handle slowly changing input signals?
The Schmitt-trigger inputs convert slowly changing signals into sharply defined, jitter-free output signals.
What is the function of the input clamp diodes?
The input clamp diodes enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
