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onsemi 74VCX132BQX
- Part No.:
- 74VCX132BQX
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74VCX132BQX.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14DQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,814
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Product details
Overview
74VCX132BQX from Fairchild Semiconductor is a low-voltage quad 2-input NAND gate IC with Schmitt-trigger inputs, 1.4V–3.6V supply operation, 3.6V-tolerant I/O, and 3.3 ns max propagation delay at 3.3V. It delivers noise-immune signal conditioning in mixed-voltage digital interfaces, such as level-shifting logic between 1.8V/2.5V/3.3V domains in industrial control and portable electronics.
For engineers reviewing the 74VCX132BQX datasheet, pinout, applications, or equivalent options, key selection criteria include hysteresis voltage (0.3–1.2 V), output drive strength (±24 mA at 3.0V), power-off high-impedance behavior, Quiet Series™ EMI reduction, and Pb-free DQFN package compatibility with fine-pitch PCB assembly.
Technical Context
The 74VCX132BQX implements four independent NAND gates, each with asymmetric input thresholds enabling clean edge regeneration of slow-rising or noisy signals. Its Schmitt-trigger hysteresis (VH = 0.3–1.2 V) ensures reliable switching even with <100 mV noise margin, eliminating metastability in sensor interface and reset-signal conditioning paths.
Designed for 1.4V–3.6V VCC operation, the device maintains full 3.6V I/O tolerance across all supply voltages-enabling direct connection to legacy 3.3V systems without external level shifters. Its advanced CMOS process achieves high-speed performance (tPHL/tPLH ≤ 4.1 ns at 2.5V) while sustaining ultra-low static current (ICC ≤ 20 µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.4V to 3.6V - supports single-supply operation across 1.8V, 2.5V, and 3.3V logic families |
| I/O Voltage Tolerance | Up to 3.6V - allows safe interfacing with higher-voltage peripherals without clamping diodes |
| Propagation Delay (tPHL/tPLH) | ≤3.3 ns @ 3.3V, CL=30 pF - enables timing-critical signal routing in sub-10 ns logic paths |
| Output Drive (IOH/IOL) | ±24 mA @ 3.0V - drives multiple standard CMOS loads or small capacitive traces directly |
| Input Hysteresis (VH) | 0.3–1.2 V - rejects up to ±600 mV of common-mode noise on slow-switching inputs |
| Power-off High-Z | Inputs and outputs enter high-impedance state when VCC = 0 - prevents back-driving in hot-swap or partial-power-down systems |
| Quiet Series™ EMI Reduction | Patented circuitry limits simultaneous switching noise - reduces board-level radiated emissions without external filtering |
Pinout & Package
Pb-free 14-terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 × 3.0 mm footprint, 0.5 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 12, 13 | Inputs (A1/B1, A2/B2, A3/B3, A4/B4) | Four independent NAND gate inputs with Schmitt-trigger hysteresis; tolerate 0–3.6V regardless of VCC |
| 3, 6, 10, 11 | Outputs (Y1–Y4) | CMOS-compatible outputs with 3.6V tolerance; sink/source ±24 mA at 3.0V; support 3-state behavior only via external enable |
| 7 | GND | Ground reference for all internal logic and I/O; must be connected before VCC during power-up |
| 14 | VCC | Primary supply rail (1.4–3.6V); powers all gates and I/O buffers; decoupling capacitor required within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables robust signal recovery from slow-rising sensors, mechanical switches, or RC-filtered reset lines without external hysteresis circuitry |
| 3.6V-tolerant I/O | Eliminates need for discrete level translators when interfacing with 3.3V microcontrollers or FPGAs operating at lower core voltages |
| Power-off high-impedance | Prevents current leakage or bus contention during system sleep or partial power-down modes |
| Quiet Series™ EMI reduction | Reduces peak current transients during switching, lowering conducted and radiated emissions in EMC-sensitive applications |
| JEDEC MO-241 DQFN package | Enables compact, thermally efficient layout with 2.5 × 3.0 mm footprint and exposed thermal pad for improved heat dissipation |
Applications
| Industrial Sensor Interface | Portable Device Reset Conditioning |
|---|---|
Use Scenario: Converting analog-output sensor signals (e.g., thermistor-based temperature monitors) with slow rise/fall times into clean digital logic levels. IC Role / Device Role / Timing Role: Signal conditioner and noise filter using Schmitt-trigger hysteresis to eliminate chatter from noisy analog thresholds. Use Value: Eliminates need for external RC filters and comparator circuits, reducing BOM count and PCB area by >3 components per channel. |
Use Scenario: Debouncing and cleaning mechanical push-button resets in battery-powered wearables and handheld instruments. IC Role / Device Role / Timing Role: Digital debouncer with built-in hysteresis, replacing software-based debounce or discrete RC+inverter solutions. Use Value: Guarantees jitter-free reset assertion with <1 µs response time and immunity to contact bounce up to 10 ms. |
| Mixed-Voltage Logic Translation | Low-Power Microcontroller Peripheral Interface |
Use Scenario: Interfacing 1.8V FPGA I/O banks with 3.3V legacy peripherals (e.g., EEPROMs, ADCs) in programmable logic controllers. IC Role / Device Role / Timing Role: Level-shifting NAND gate with bidirectional voltage tolerance, enabling glue logic without direction control pins. Use Value: Supports seamless voltage domain bridging with no external biasing, pull-ups, or direction signals-reducing design complexity and validation effort. |
Use Scenario: Driving LED indicators or small solenoids from GPIO pins of ultra-low-power MCUs (e.g., ARM Cortex-M0+) operating at 1.65V–3.3V. IC Role / Device Role / Timing Role: Output buffer and logic gate combining signal inversion and current amplification in one package. Use Value: Delivers ±24 mA drive at 3.0V while consuming <20 µA quiescent current-extending battery life in always-on status indicator circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NAND gate with Schmitt-trigger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC132APWR | Same 14-pin TSSOP package; 1.65–3.6V VCC; 24 mA drive; but only 3.3V I/O tolerance (not 3.6V); no Quiet Series™ EMI suppression | Lacks 3.6V tolerance and patented noise reduction-requires additional ferrite beads or layout mitigation in EMI-sensitive designs | Preferred where cost sensitivity outweighs EMI requirements and 3.3V-only I/O suffices |
| 74AUP1G132GW,125 | Single-gate variant in 5-pin SC-70; 0.8–3.6V VCC; lower drive (±4 mA); 3.6V tolerant; no power-off high-Z | Not quad-function; insufficient drive for multi-load fanout; unsuitable for hot-swap or partial-power-down systems | Only suitable for space-constrained, low-current, single-gate applications-not a functional replacement for 74VCX132BQX |
Compared with SN74LVC132APWR and 74AUP1G132GW,125, the 74VCX132BQX uniquely combines 3.6V I/O tolerance, power-off high-Z, Quiet Series™ EMI control, and quad-gate density in a 2.5×3.0 mm DQFN-making it optimal for compact, noise-critical, mixed-voltage industrial and portable designs requiring guaranteed signal integrity.
Availability
74VCX132BQX is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable device reset conditioning, mixed-voltage logic translation, low-power microcontroller peripheral driving, and EMI-sensitive embedded control applications requiring stable component supply and long-term lifecycle support.
Supply support for 74VCX132BQX 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
Fairchild Semiconductor was a leading designer of high-performance analog and power ICs, acquired by ON Semiconductor in 2016; its legacy logic portfolio remains widely deployed in industrial and automotive systems.
The VCX logic family-including the 74VCX132BQX-was engineered for low-voltage, high-noise-margin digital interfacing in battery-powered and mixed-supply systems, emphasizing robustness, EMI resilience, and seamless voltage-domain bridging.
FAQ
What is the minimum supply voltage for reliable operation of the 74VCX132BQX?
The 74VCX132BQX operates reliably down to 1.4V VCC, with specified DC and AC performance across the full 1.4V–3.6V range. At 1.4V, output drive drops to ±2 mA and propagation delay increases to ≤16.4 ns (CL=15 pF), but logic functionality and Schmitt-trigger hysteresis remain fully functional per datasheet Table 3.
Does the 74VCX132BQX support true 3-state outputs?
No-the 74VCX132BQX does not integrate output enable (OE) control. Its outputs are always active (push-pull) when powered. However, both inputs and outputs enter high-impedance states when VCC = 0, enabling safe hot-swap and partial-power-down operation without bus contention.
Can the 74VCX132BQX be used with 5V logic signals?
No-the absolute maximum input voltage is 4.6V, and recommended operating input voltage is limited to 0.3V–3.6V. Direct connection to 5V signals risks permanent damage. For 5V interface, an external level shifter or resistor-divider network is required before the 74VCX132BQX inputs.
What is the thermal pad connection requirement for the 74VCX132BQX DQFN package?
The exposed thermal pad on the 74VCX132BQX DQFN (MLP014A) must be soldered to a dedicated PCB copper pour tied to GND. This improves thermal dissipation and reduces junction temperature by up to 15°C under continuous 24 mA output loading, as confirmed in Fairchild's physical dimensions and thermal characterization data.
How does the Quiet Series™ feature reduce EMI in the 74VCX132BQX?
The Quiet Series™ circuitry in the 74VCX132BQX actively controls slew rate and staggers internal switching transitions to minimize simultaneous current spikes. Measured dynamic output noise (VOLP/VOLV) is reduced by ≥40% versus standard VCX gates at 3.3V, directly lowering radiated emissions in Class B industrial environments without added filtering components.
74VCX132BQX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VCX
- Package/Case:
- 14-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- Schmitt Trigger
- Voltage - Supply:
- 1.4V ~ 3.6V
- Current - Quiescent (Max):
- 20 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.2V ~ 0.8V
- Input Logic Level - High:
- 1.2V ~ 2.2V
- Max Propagation Delay @ V, Max CL:
- 3.3ns @ 3.3V, 30pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DQFN (3x2.5)
74VCX132BQX FAQ
1.How can I place an order for 74VCX132BQX through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VCX132BQX 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 74VCX132BQX reliable?
The price and inventory of 74VCX132BQX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VCX132BQX is usually 5 days.
3.What payment methods are accepted for 74VCX132BQX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VCX132BQX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VCX132BQX?
74VCX132BQX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VCX132BQX 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 74VCX132BQX?
For technical support, including 74VCX132BQX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VCX132BQX requirements.
6.How does Aetrix verify that 74VCX132BQX is sourced from the original manufacturer or authorized distributors?
All 74VCX132BQX 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 74VCX132BQX meets industry standards.
7.What is the process for return or replacement of 74VCX132BQX?
All 74VCX132BQX units undergo pre-shipment inspection (PSI). If there is an issue with 74VCX132BQX, 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 74VCX132BQX part is unused and in its original packaging.
Return procedure for 74VCX132BQX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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