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SN74HCT14D

Name: SN74HCT14D
Rating: 4.7 (12 reviews)

IC INV SCHMITT 6CH 1-IN 14SOIC

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Mfr.부분 #SN74HCT14D
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데이터시트 SN74HCT14D DataSheet
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사양

Supplier	Rochester Electronics, LLC,Texas Instruments
Package	Bulk,Tube
Series	74HCT
ProductStatus	Active
LogicType	Inverter
NumberofCircuits	6
NumberofInputs	1
Features	Schmitt Trigger
Voltage-Supply	4.5V ~ 5.5V
Current-Quiescent(Max)	2 µA
Current-OutputHighLow	4mA, 4mA
LogicLevel-Low	0.5V ~ 0.6V
LogicLevel-High	1.9V ~ 2.1V
MaxPropagationDelay@VMaxCL	30ns @ 5.5V, 50pF
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
SupplierDevicePackage	14-SOIC

개요

Description

SN74HCT14D is a hex Schmitt-trigger inverter from the 74HCT family. It contains six independent inverting gates with Schmitt-trigger inputs, so they offer noise immunity and clean transitions for slow or noisy signals. The device is TTL-compatible on the inputs (HCT) and operates from a 4.5–5.5 V supply. Outputs are standard CMOS levels and can drive typical logic loads.
Common uses include debouncing switches, level shifting, signal conditioning, RC oscillators, and simple clock/edge shaping. Each gate inverts its input, and the Schmitt hysteresis helps reject chatter and bounce.
Key notes:
- 6 inverters in one 14-pin device
- 4.5–5.5 V operation; TTL-compatible inputs
- Propagation delays in the tens of nanoseconds, depending on load
- Package suffix “D” indicates a specific packaging variant (see datasheet for exact package)
Pinout is standard for 74HCT14 devices, so it’s usually a drop-in substitute for buffering or inverting digital signals.

Features

SN74HCT14D features:
- Hex (six) Schmitt-trigger inverters (independent gates)
- Schmitt-trigger inputs on all gates for hysteresis and noise immunity
- TTL-compatible inputs (HCT) with 4.5–5.5 V supply
- CMOS outputs with typical high drive and low power
- Suitable for 5V logic interfacing, fast edge shaping, debouncing, oscillators
- Package: 14-pin DIP (D suffix) and related formats
(Uses: signal conditioning, debouncing, oscillator circuits, level shifting in 5V logic systems.)

Package

SN74HCT14D comes in a 14‑pin Small Outline Integrated Circuit package (SOIC). The “D” suffix denotes the SOIC package.

Pinout

- Pin count: 14 pins (DIP/package in SN74 series).
- Function: Hex Schmitt-trigger inverter — six independent Schmitt-trigger inverters (A–F); each input is inverted at the output with hysteresis. Vcc = pin 14, GND = pin 7.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: American multinational semiconductor company that designs and manufactures analog and digital integrated circuits.

Application

SN74HCT14D is a hex Schmitt-trigger inverter (D-package). Typical applications:
- Debounce pushbuttons/switches and relays
- Clean slow/noisy signals into sharp digital edges
- RC timing circuits and simple oscillators/pulse shapers
- Level shifting and TTL-to-CMOS interfacing
- Edge-detection and conditioning for microcontrollers/FPGA inputs
- Noise-immune buffering for digital lines and keypad scanners

Equivalent

Equivalent parts (6-channel hex Schmitt-trigger inverters, 5V CMOS TTL-compatible):
- 74HCT14 (from other vendors; e.g., Nexperia/Philips)
- MC74HCT14 (Motorola/Fairchild lineage; sold by ON Semiconductor)
- TC74HCT14 (Toshiba)
Any 74HCT14 device in DIP-14/SO-14 from these manufacturers is functionally equivalent to SN74HCT14D.