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Nexperia USA Inc. 74HC9114D,112
- Part No.:
- 74HC9114D,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74HC9114D,112.pdf
- Description:
- IC INVERT SCHMITT 9CH 1-INP 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,181
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Product details
Overview
74HC9114D,112 from Nexperia is a 9-bit inverting Schmitt trigger buffer with open-drain outputs, designed for noise-immune signal conditioning in mixed-voltage digital systems. It operates from 2.0 V to 6.0 V, features TTL-compatible input thresholds, and delivers jitter-free output transitions in industrial temperature range (–40 °C to +125 °C), commonly used in bus buffering and level translation between 3.3 V and 5 V domains.
For engineers reviewing the 74HC9114D,112 datasheet, 74HC9114D,112 pinout, 74HC9114D,112 application, or 74HC9114D,112 equivalent, key selection criteria include Schmitt hysteresis width (0.5–1.1 V at VCC = 6.0 V), open-drain drive capability (±25 mA), propagation delay (10–28 ns at VCC = 6.0 V), and input clamp diode support for overvoltage-tolerant interfacing.
Technical Context
This device implements nine independent inverting Schmitt buffers, each with hysteresis-defined positive- and negative-going input thresholds (e.g., VT+ = 2.30–4.20 V, VT− = 1.80–3.30 V at VCC = 6.0 V) to reject slow-rising or noisy signals. Its open-drain outputs require external pull-up resistors and support wired-OR logic and voltage-level flexibility.
The IC integrates input clamp diodes enabling safe interface to voltages exceeding VCC when current-limiting resistors are used, and meets JESD7A (2.0–6.0 V) and JEDEC ESD standards (HBM >2000 V, CDM >1000 V). It is specified across –40 °C to +125 °C and packaged in SO20 (SOT163-1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage (VCC) | 2.0 V to 6.0 V - supports dual-supply system interfacing and battery-powered operation down to 2 V. |
| Input Hysteresis (VH) | 0.5 V to 1.1 V at VCC = 6.0 V - ensures robust noise margin against EMI and contact bounce in switch debouncing. |
| Propagation Delay (tpd) | 10 ns (min) to 28 ns (max) at VCC = 6.0 V, CL = 50 pF - enables reliable timing in medium-speed digital control paths. |
| Output Drive (IO) | ±25 mA - allows direct driving of LEDs or logic inputs with standard pull-up resistors (e.g., 1 kΩ to 5 V). |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor controllers. |
| Input Clamp Current | ±20 mA - permits safe connection of inputs to voltages up to VCC + 0.5 V using series resistors. |
| Power Dissipation (Ptot) | 500 mW at Tamb ≤ 109 °C, derating 12.3 mW/K above - defines thermal limits for PCB layout and airflow planning. |
Pinout & Package
74HC9114D,112 is housed in a plastic small outline package (SO20), SOT163-1, with 20 leads and 7.5 mm body width. Pin 1 is index-marked; pin 10 is GND; pin 20 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A8 (pins 1–9) | Data input | Inverting Schmitt-triggered inputs accepting slow or noisy signals; include clamp diodes for overvoltage tolerance. |
| GND (pin 10) | Ground reference | 0 V return path for all internal circuitry and output current sinking. |
| Y0–Y8 (pins 11–19) | Open-drain output | Active-low outputs requiring external pull-up; support wired-OR, I²C-like bus sharing, and multi-voltage level translation. |
| VCC (pin 20) | Supply voltage | Primary power rail (2.0–6.0 V); powers internal CMOS logic and defines input threshold levels. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range | 2.0 V to 6.0 V enables interoperability across 3.3 V microcontrollers and 5 V legacy peripherals. |
| Schmitt trigger hysteresis | Programmable via VCC (e.g., VH = 1.1 V at 6 V) - eliminates metastability in pushbutton or sensor interfaces. |
| Open-drain outputs | Nine independent Yn pins support flexible bus topologies and mixed-voltage pull-up configurations. |
| Input clamp diodes | Allow safe interfacing to signals up to VCC + 0.5 V using simple series resistors - reduces need for external protection. |
| High noise immunity | CMOS design with >40 % noise margin at VCC = 4.5 V - sustains reliable operation in electrically noisy motor-drive environments. |
Applications
| Industrial Pushbutton Debouncing | Legacy Bus Level Translation |
|---|---|
|
Use Scenario: Mechanical pushbuttons connected to PLC input modules generate contact bounce and EMI in factory-floor environments. IC Role / Device Role / Timing Role: Inverting Schmitt buffer conditioning raw switch signals before microcontroller sampling. Use Value: Hysteresis (≥0.5 V at 5 V) rejects sub-100 ns transients; open-drain outputs interface directly to 24 V optocoupler inputs via pull-up. |
Use Scenario: A 3.3 V FPGA must drive a 5 V parallel address/data bus shared with older microcontrollers. IC Role / Device Role / Timing Role: Nine-channel level translator with noise filtering on each line. Use Value: TTL-compatible input thresholds allow direct 3.3 V logic recognition; open-drain Yn outputs pulled to 5 V enable bidirectional bus arbitration. |
| Motor Control Feedback Conditioning | Multi-Sensor Signal Aggregation |
|
Use Scenario: Hall-effect sensors in BLDC motor drives output slow-rising analog-comparator outputs subject to PWM-induced noise. IC Role / Device Role / Timing Role: Signal conditioner converting noisy edge transitions into clean digital pulses for rotor position decoding. Use Value: Unlimited input rise/fall time tolerance and 28 ns max propagation delay preserve commutation timing accuracy within ±1° electrical angle. |
Use Scenario: Industrial IoT node aggregates status signals from nine discrete sensors (flow, temp, pressure) onto a single interrupt bus. IC Role / Device Role / Timing Role: Wired-OR aggregator using open-drain outputs to combine active-low alerts. Use Value: Nine independent Yn outputs enable fault-isolated reporting; Schmitt inputs prevent false triggers from sensor cable crosstalk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 9-bit Schmitt buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT9114D,112 | Fixed 4.5–5.5 V VCC range; TTL-compatible VT+ (1.2–2.1 V) and VT− (0.8–1.7 V) thresholds. | Better suited for strict 5 V-only systems with legacy TTL inputs; lower hysteresis than HC variant. | Select when interfacing exclusively with 5 V TTL logic and tighter threshold control is required. |
| SN74LVTH162244DGGR | 16-bit non-inverting buffer; LVTH family (2.7–3.6 V); higher drive (±24 mA); no Schmitt inputs. | Lacks hysteresis - unsuitable for noisy or slow-edge signals; requires clean input waveforms. | Choose only for high-speed, low-voltage (3.3 V) bus buffering where noise immunity is externally managed. |
Compared with 74HC9114D,112, the 74HCT9114D,112 offers tighter 5 V–optimized thresholds but reduced supply flexibility, while the SN74LVTH162244DGGR provides higher channel count and speed at the cost of Schmitt functionality - making it unfit for debouncing or marginal-signal conditioning.
Availability
74HC9114D,112 is available at Aetrix Electronics and suitable for industrial automation, motor control, and sensor interface designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC9114D,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HC9114 belongs to Nexperia's HC logic family, engineered for robust noise immunity and wide-voltage interoperability in harsh industrial environments - not just general-purpose logic replacement.
FAQ
Can 74HC9114D,112 drive a 10 kΩ pull-up to 5 V?
Yes. With IO = ±25 mA maximum and typical VOL < 0.26 V at 4 mA sink, the device easily supports 10 kΩ pull-ups to 5 V (resulting in ~0.5 mA load), maintaining logic LOW below 0.4 V across full temperature range per datasheet Table 6.
Does it support mixed-voltage operation where inputs exceed VCC?
Yes - input clamp diodes allow safe interface to voltages up to VCC + 0.5 V when series current-limiting resistors are used (per Table 4 and Section 1 General Description), enabling direct connection to 5 V signals while powered from 3.3 V.
What is the minimum input rise time it can handle reliably?
Unlimited - the Schmitt trigger architecture eliminates minimum edge-rate requirements. The device transforms arbitrarily slow inputs (e.g., RC-debounced switches with >100 μs rise time) into sharp, jitter-free digital outputs, as confirmed in Section 2 Features and Table 6.
Is thermal derating required above 109 °C ambient?
Yes - total power dissipation derates linearly at 12.3 mW/K above 109 °C (Table 4), meaning Ptot drops to ~400 mW at 117 °C. Layout must include adequate copper pour and avoid adjacent heat sources to maintain reliability at +125 °C operation.
74HC9114D,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Inverter
- Number of Circuits:
- 9
- Number of Inputs:
- 1
- Features:
- Schmitt Trigger, Open Drain
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 8 µA
- Current - Output High, Low:
- -, 5.2mA
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 19ns @ 6V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74HC9114D,112 FAQ
1.How can I place an order for 74HC9114D,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC9114D,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74HC9114D,112 reliable?
The price and inventory of 74HC9114D,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC9114D,112 is usually 5 days.
3.What payment methods are accepted for 74HC9114D,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC9114D,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC9114D,112?
74HC9114D,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC9114D,112 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74HC9114D,112?
For technical support, including 74HC9114D,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC9114D,112 requirements.
6.How does Aetrix verify that 74HC9114D,112 is sourced from the original manufacturer or authorized distributors?
All 74HC9114D,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74HC9114D,112 meets industry standards.
7.What is the process for return or replacement of 74HC9114D,112?
All 74HC9114D,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC9114D,112, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74HC9114D,112 part is unused and in its original packaging.
Return procedure for 74HC9114D,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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