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Nexperia USA Inc. 74VHCT32D,118
- Part No.:
- 74VHCT32D,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74VHCT32D,118.pdf
- Description:
- IC GATE OR 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,395
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Product details
Overview
74VHCT32D,118 from Nexperia is a quad 2-input OR gate IC in SO14 package, operating at 4.5 V to 5.5 V supply with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max), 7.0 ns typical propagation delay at 5 V/50 pF load, and rated for -40 °C to +125 °C industrial temperature range. It serves as a logic-level combiner in digital control signal routing, bus arbitration, and status aggregation circuits.
For engineers reviewing the 74VHCT32D,118 datasheet, 74VHCT32D,118 pinout, 74VHCT32D,118 application, or 74VHCT32D,118 equivalent, key selection criteria include TTL-level input compatibility, SO14 thermal performance up to 125 °C, guaranteed 8 mA output drive strength, Schmitt-trigger input noise immunity, and JEDEC 7-A compliance for LSTTL pin replacement.
Technical Context
This device implements four independent 2-input OR logic functions using high-speed Si-gate CMOS technology, with inputs tolerant of voltages exceeding VCC and internal Schmitt-trigger action on all inputs for noise rejection. Its TTL-compatible input thresholds (2.0 V VIH, 0.8 V VIL) enable direct interfacing with legacy 5 V TTL outputs without level-shifting.
The SO14 package (SOT108-1) provides 14 leads with 3.9 mm body width and 1.27 mm lead pitch, supporting standard reflow profiles and offering 500 mW total power dissipation at ≤100 °C ambient, derating linearly by 10.1 mW/K above that temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Four independent 2-input OR gates (A + B → Y) |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures stable operation across 5 V rail tolerances |
| Propagation Delay | 7.0 ns typ @ 5 V, 50 pF - enables reliable timing in ≤70 MHz combinational paths |
| Output Drive | ±8 mA - sufficient to drive 10 LSTTL loads or 15 pF PCB traces directly |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - guarantees interoperability with standard 5 V TTL outputs |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood, industrial control, and power supply monitoring |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets IEC 61000-4-2 Level 2 system robustness requirements |
Pinout & Package
74VHCT32D,118 uses the SO14 plastic small outline package (SOT108-1), 14-lead, 3.9 mm body width, 1.27 mm pitch, with gull-wing leads and pin 1 index marked by notch or bevel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | Input A (nA) | First input of each OR gate; accepts TTL/CMOS levels up to VCC + 0.5 V |
| 2, 5, 10, 13 | Input B (nB) | Second input of each OR gate; Schmitt-triggered for noise margin ≥0.4 V |
| 3, 6, 8, 11 | Output Y (nY) | OR result (nA + nB); drives loads up to 8 mA sink/source with rail-to-rail swing |
| 7 | GND | Digital ground reference; must be low-impedance connection for noise control |
| 14 | VCC | Positive supply (4.5–5.5 V); decoupling capacitor required within 10 mm |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH = 2.0 V min / VIL = 0.8 V max enables plug-in replacement of 74LS32 in existing 5 V systems |
| Schmitt-trigger inputs | Hysteresis ≥0.4 V suppresses noise-induced glitches on slow or noisy control lines |
| VCC-overvoltage tolerant inputs | Accepts inputs up to VCC + 0.5 V - allows safe interfacing with hot-swap or mixed-voltage nodes |
| High ESD robustness | HBM > 2000 V and CDM > 1000 V reduce field failure risk during handling and board assembly |
| Extended temperature range | -40 °C to +125 °C operation supports deployment in motor drives, power converters, and outdoor controllers |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Aggregating multiple sensor fault flags into a single "system error" indicator line. IC Role / Device Role / Timing Role: Combinatorial OR gate performing real-time logical OR of four independent diagnostic signals. Use Value: Eliminates need for microcontroller polling or additional logic; response time <7 ns ensures immediate fault visibility. |
Use Scenario: Merging door-open, trunk-open, and hood-open signals to trigger interior lighting activation. IC Role / Device Role / Timing Role: Level-sensitive OR combiner enabling lighting control without software latency. Use Value: Guaranteed operation at 125 °C ambient satisfies under-dash thermal requirements; TTL inputs interface directly with switch matrix outputs. |
| Power Supply Sequencing Monitor | Legacy System Bus Arbitration |
Use Scenario: Detecting any rail undervoltage condition across +3.3 V, +5 V, +12 V, and -12 V supplies to assert global POWER_GOOD#. IC Role / Device Role / Timing Role: Fault-condition combiner feeding reset controller input with sub-10 ns latency. Use Value: Propagation delay variation <1 ns across temperature ensures deterministic timing margin in safety-critical sequencing. |
Use Scenario: Resolving bus grant requests from four legacy peripheral cards sharing a common data bus. IC Role / Device Role / Timing Role: Priority-agnostic OR gate generating BUS_BUSY# when any card asserts request. Use Value: Pin-compatible drop-in for 74LS32; eliminates redesign while upgrading to CMOS reliability and lower ICC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74VHC32D,118 | CMOS input thresholds (VIH = 3.85 V @ 5.5 V), wider VCC range (2.0–5.5 V), lower ICC (<2 μA) | Better for mixed-voltage systems with 3.3 V logic; unsuitable for direct TTL output interfacing | Select when interfacing with 3.3 V or battery-powered logic; avoid if driving from 5 V TTL sources |
| SN74LVC32APWR | 3.3 V only (1.65–3.6 V), higher speed (4.2 ns @ 3.3 V/50 pF), ±24 mA drive | Requires level translation for 5 V systems; superior for high-speed 3.3 V FPGA/CPLD I/O expansion | Prefer for new 3.3 V designs needing faster edges or stronger drive; not a 5 V drop-in |
Compared with 74VHC32D,118 and SN74LVC32APWR, the 74VHCT32D,118 uniquely bridges legacy 5 V TTL and modern CMOS domains with guaranteed input compatibility, making it optimal for retrofitting, industrial upgrades, and mixed-signal control layers where voltage translation must be avoided.
Availability
74VHCT32D,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, power supply sequencing monitors, and legacy system bus arbitration requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for 74VHCT32D,118 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 essential efficiency-enhancing components, delivering high-performance logic, discrete, and MOSFET solutions with industry-leading quality and reliability.
The 74VHCT series targets industrial and automotive applications requiring robust, pin-compatible replacements for legacy TTL logic, emphasizing wide temperature operation, noise immunity, and seamless integration into mixed-voltage systems.
FAQ
Is 74VHCT32D,118 compatible with 74LS32 in existing PCB layouts?
Yes - it is pin-compatible with 74LS32 and meets JEDEC Standard No. 7-A. Identical SO14 footprint, same pinout, and TTL-level input thresholds ensure direct replacement without layout changes. Output drive strength (±8 mA) matches LS-series capability, and propagation delay (7 ns typ) is comparable to 74LS32's 15 ns, enabling faster timing margins.
What is the maximum capacitive load this device can drive reliably?
The 74VHCT32D,118 is characterized up to 50 pF load capacitance with guaranteed 7.0 ns propagation delay at 5 V. Driving >50 pF increases delay nonlinearly and may cause overshoot; for >75 pF loads, add series termination (22–47 Ω) near the output and verify signal integrity per IEC 62433-2. Total output node capacitance must remain ≤100 pF for reliable 10 MHz switching.
Does this part support partial power-down or I/O isolation when VCC = 0 V?
No - 74VHCT32D,118 lacks Ioff protection. When VCC = 0 V, inputs and outputs may conduct if external voltages exceed GND −0.5 V or VCC + 0.5 V, risking back-powering or latch-up. For hot-swap or partial-power-down systems, use a version with Ioff specification (e.g., 74LVC32A) or add external isolation diodes.
Can 74VHCT32D,118 operate at 3.3 V supply?
No - the 74VHCT variant is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH = 2.0 V) become non-compliant, and output VOH drops below TTL HIGH recognition level. For 3.3 V systems, use 74VHC32D,118 (CMOS-input version) or 74LVC32A, both rated down to 1.65 V.
74VHCT32D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- OR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 7.9ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74VHCT32D,118 FAQ
1.How can I place an order for 74VHCT32D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT32D,118 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 74VHCT32D,118 reliable?
The price and inventory of 74VHCT32D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT32D,118 is usually 5 days.
3.What payment methods are accepted for 74VHCT32D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT32D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT32D,118?
74VHCT32D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT32D,118 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 74VHCT32D,118?
For technical support, including 74VHCT32D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT32D,118 requirements.
6.How does Aetrix verify that 74VHCT32D,118 is sourced from the original manufacturer or authorized distributors?
All 74VHCT32D,118 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 74VHCT32D,118 meets industry standards.
7.What is the process for return or replacement of 74VHCT32D,118?
All 74VHCT32D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT32D,118, 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 74VHCT32D,118 part is unused and in its original packaging.
Return procedure for 74VHCT32D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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