MC74HC1G14DFT1G - Single Schmitt-Trigger CMOS Inverter | onsemi
MPN: MC74HC1G14DFT1G ✓ פעילMC74HC1G14DFT1G סקירה
A logic inverter is a combinational digital component that produces the complement of its input: a low input produces a high output, while a high input produces a low output. Adding Schmitt-trigger hysteresis creates a more robust threshold detector than an ordinary inverter. Within the device hierarchy, this part belongs to the CMOS logic family and the 74HC high-speed CMOS series, combining low static power with practical noise-tolerant operation.
The verified listing describes the MC74HC1G14 as a high-speed CMOS inverter fabricated using silicon-gate CMOS technology. Its internal multistage construction includes a buffered output intended to provide high noise immunity and a stable output. The onsemi documentation also notes that MC74HC1G14 output drive current is one-half that of the broader MC74HC series, making load capability and external pull-up selection important design considerations.
Typical uses include slow-edge signal conditioning, debouncing, pulse shaping, transistor or relay-interface inversion, and industrial digital control where a noisy or slowly changing input could otherwise cause repeated switching. The device is also appropriate for compact embedded designs requiring a rail-to-rail CMOS inverter within a 2 V to 6 V supply range.
Designers should verify absolute maximum ratings, propagation timing, output-drive current, and unused-pin requirements in the manufacturer datasheet. Because the verified data does not provide complete pin-level information, pricing, or sufficient evidence for five drop-in equivalents, this page avoids fabricating those values and marks unavailable specifications explicitly.
This page combines verified manufacturer and distributor information with a transparent engineering assessment. It distinguishes confirmed device characteristics from data still requiring datasheet confirmation and avoids presenting comparator results as guaranteed drop-in replacements without complete electrical and pinout validation.
חלופות תחליף ישיר עבור MC74HC1G14DFT1G — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MC74HC1G14DFT1G (אותו גורם צורה וטביעת רגל) — שונים ב Logic Family, Number of Channels, Operating Temperature, Output Drive Current, Package.
MC74VHC1G14DFT1G
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MC74HC1G14DFT1G דירוגים מרביים ומאפיינים חשמליים
| Logic Type | Single Schmitt-trigger inverter |
| Number of Channels | 1 channel |
| Logic Family | 74HC high-speed CMOS |
| Technology | Silicon-gate CMOS |
| Supply Voltage Range | 2 V to 6 V |
| Input Type | Schmitt-trigger input |
| Output Function | Inverting |
| מספר פינים | 5 pins |
| מארז | SC-88A (SC-70-5/SOT-353) |
| טמפרטורת פעולה | -55°C to 125°C |
| Propagation Delay | 155 ns |
| Output Drive Current | One-half of MC74HC series |
| Internal Architecture | Multiple stages with buffered output |
| Noise Immunity | High noise immunity per manufacturer description |
| סטטוס מחזור חיים | Active per onsemi product page |
מדריך תצורת פינים של MC74HC1G14DFT1G sc-88a (sc-70-5/sot-353)
תצורת פינים עבור MC74HC1G14DFT1G (מארזת sc-88a (sc-70-5/sot-353)). מעגל משולב דיגיטלי זה כולל GPIO, ממשקי תקשורת (UART, SPI, I2C) ופיני מתח. יש לעיין בגיליון הנתונים של היצרן לפונקציות פינים חלופיות ולאפשרויות תצורה. חיוני לתכנון מערכות משובצות ולפריסת PCB.
אין נתוני פריסת פינים מפורטים עבור MC74HC1G14DFT1G.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
MC74HC1G14DFT1G מתאים עבור 6 יישוםs: Industrial Signal Conditioning, Push-Button Debouncing, Embedded Logic Interfacing, Pulse and Edge Conditioning, Transistor and Relay Interface, Sensor and Switch Interface.
Industrial Signal Conditioning
The MC74HC1G14DFT1G is suitable for conditioning industrial inputs that are exposed to slow transitions, ringing, or electrical noise. Its Schmitt-trigger action separates rising and falling switching thresholds, reducing the chance of repeated output changes while an input crosses the transition region. The verified 2 V to 6 V supply and -55°C to 125°C range support robust digital control, while the onsemi datasheet specifically describes the device as providing high noise immunity. Because output drive is half that of the broader MC74HC series, keep fanout and load capacitance modest, and verify timing and drive limits in the datasheet.
מומלץ
Push-Button Debouncing
The MC74HC1G14DFT1G can invert and condition a mechanical push-button signal before it reaches a microcontroller or counter. Contact bounce and slow button transitions can otherwise produce several apparent transitions, while the Schmitt-trigger input provides separate thresholds for rising and falling edges. This allows the receiving digital block to recognize a more stable state change. The device's one-channel SC-88A package conserves board area, and its 155 ns verified propagation delay is short compared with typical human input events. Verify voltage levels, absolute maximum ratings, and external pull-up requirements in the manufacturer documentation.
מומלץ
Embedded Logic Interfacing
The MC74HC1G14DFT1G provides a compact way to invert a digital control or status signal between circuit sections operating from the same 2 V to 6 V supply family. Its buffered output supports stable operation and high noise immunity, while the Schmitt-trigger input helps prevent ambiguous logic states. This makes the device useful for level-compatible control paths, pulse inversion, and interface standardization in embedded systems. The reduced drive capability relative to the MC74HC family should be checked against trace length, fanout, and load capacitance. Confirm package orientation and unused-pin requirements using the complete onsemi datasheet.
מומלץ
Pulse and Edge Conditioning
The MC74HC1G14DFT1G can transform a noisy or slowly varying pulse into a cleaner complementary digital waveform. Schmitt-trigger hysteresis prevents small fluctuations near the nominal threshold from repeatedly toggling the inverter, and the internal buffered output is intended to provide stable signaling. Verified distributor information gives a 155 ns propagation delay, making timing explicit for pulse-width and system-latency calculations. The SC-88A package also supports dense layouts. Engineers should still validate rise and fall times, load capacitance, and output-current limits at the selected supply voltage before using the gate close to timing or fan-out limits.
מומלץ
Transistor and Relay Interface
The MC74HC1G14DFT1G can provide an inverted control signal for compatible transistor stages, level-shifting networks, or relay-driver interfaces. The Schmitt-trigger input makes the stage less sensitive to slow command transitions, and the buffered CMOS output supports predictable operation within its rated load capability. The verified 2 V to 6 V operating range allows use in multiple low-voltage control systems, but the target transistor or relay must also be checked for adequate base, gate, or coil current. Do not assume the one-half MC74HC drive rating is sufficient for every external device; compare load requirements with the onsemi output-current specifications.
מומלץ
Sensor and Switch Interface
The MC74HC1G14DFT1G is appropriate when a sensor, comparator, or mechanical switch produces a transition that needs clean inversion before entering a digital controller. Hysteresis helps distinguish a genuine state change from small signal fluctuations, while the buffered CMOS stage supports stable downstream operation. For open-collector sensors, select a suitable pull-up and confirm that its resistor value respects the input and output drive limits. The compact five-pin package reduces board area in distributed sensing and control nodes. Final designs should verify thresholds, supply range, propagation delay, and absolute maximum ratings from the manufacturer datasheet.
מומלץ
נתוני עזר הנדסיים עבור MC74HC1G14DFT1G — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | MC74VHC1G14DFT1G |
|---|---|---|
| Brand | onsemi | onsemi |
| Package | SC-88A (SC-70-5/SOT-353) | SC-88A (SC-70-5/SOT-353) |
| Logic Function | Single Schmitt-trigger inverter | Single Schmitt-trigger inverter |
| Logic Family | 74HC high-speed CMOS | 74VHC CMOS |
| Number of Pins | 5 | 5 |
| Input Type | Schmitt-trigger | Schmitt-trigger |
מבדילים עיקריים
- Schmitt-trigger input is explicitly identified for the target device (לעומתSN74AHC1G04DCKR)
- Single-device 74HC logic with compact five-pin packaging (לעומתSN74AHC1G04DCKR)
- Verified wide operating-temperature specification (לעומתMC74VHC1G14DFT1G)
הערות תכנון
Do not treat a matching SC-70-5 or SOT-353 outline as proof of drop-in compatibility. Confirm pin numbering, exposed features, pad geometry, and pin functions against the onsemi package drawing and the alternative manufacturer's datasheet. The verified search data identifies MC74VHC1G14DFT1G as a related device, but it does not provide enough information to guarantee identical voltage levels, timing, or electrical behavior.
Use the Schmitt-trigger behavior intentionally: choose input rise and fall times, pull-up or pull-down values, and hysteresis margins so the signal crosses the relevant threshold decisively. Do not assume the 155 ns propagation-delay figure alone guarantees clean edges at the output. Check output loading, trace capacitance, fanout, and the reduced MC74HC-family drive capability in the manufacturer characterization data.
Keep the supply within the verified 2 V to 6 V operating range and verify absolute maximum ratings before applying external signals. Provide local supply bypassing according to the datasheet and keep the ground return short, especially when driving a load or routing the input through a long trace. The exact bypass capacitance, quiescent current, and input current values were not supplied, so they must be confirmed rather than guessed.
מידע על תאימות
The supplied verified excerpts identify the product as an active onsemi logic device but do not provide RoHS, REACH, halogen-free, lead-free, or conflict-minerals declarations. These fields must be confirmed from the current manufacturer product page or declaration before procurement.
