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onsemi MC74AC132NG
- Part No.:
- MC74AC132NG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MC74AC132NG.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,910
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Product details
Overview
MC74AC132NG from onsemi is a quad 2-input NAND Schmitt trigger IC in SOIC-14 package, designed for noise-immune signal conditioning in digital logic interfaces. It operates from 2.0 V to 6.0 V, delivers ±24 mA output drive, exhibits 1.2 V typical hysteresis at 4.5 V, and achieves 9.0 ns propagation delay (tPLH/tPHL) at 5.0 V with 50 pF load - enabling reliable debouncing of mechanical switches in industrial control panels.
For engineers reviewing the MC74AC132NG datasheet, pinout, applications, or equivalent options, this device is selected for its precise input threshold separation (Vt+ = 3.2 V, Vt− = 0.9 V at 4.5 V), rail-to-rail output swing, low ICC (≤40 µA), and Pb-free SOIC-14 packaging suitable for automated SMT assembly and long-lifecycle industrial deployments.
Technical Context
The MC74AC132NG implements four independent 2-input NAND gates, each integrated with a Schmitt-trigger input stage using positive feedback to generate voltage hysteresis. Its input thresholds are internally set by resistor ratios, making Vt+ and Vt− stable across temperature (−40°C to +85°C) and supply voltage (2.0–6.0 V).
This architecture enables clean edge regeneration of slow-rising or noisy signals - such as those from sensors, encoders, or push-button inputs - without external RC networks. The device uses high-performance silicon-gate CMOS technology, ensuring TTL-compatible output levels while maintaining CMOS power efficiency and ESD robustness (>2000 V HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing (e.g., 3.3 V logic driving 5 V subsystems) |
| Output Drive Strength | ±24 mA - sufficient to directly drive LED indicators, small relays, or fan-out to ≥10 standard CMOS loads |
| Propagation Delay | 9.0 ns max at 5.0 V/50 pF - enables use in sub-100 MHz timing-critical signal conditioning paths |
| Hysteresis Width | 1.2 V typ at 4.5 V - provides robust immunity to noise up to ±600 mV on input lines |
| Input Thresholds | Vt+ = 3.2 V, Vt− = 0.9 V at 4.5 V - ensures reliable switching even with slow 10–100 µs rise/fall times |
| Quiescent Supply Current | ≤40 µA max - enables always-on monitoring circuits without significant standby power penalty |
| ESD Withstand | >2000 V HBM - meets IEC 61000-4-2 Level 2 for board-level transient immunity |
Pinout & Package
MC74AC132NG is housed in a Pb-free SOIC-14 (Case 751A) package with 1.27 mm pitch, 8.75 mm × 3.9 mm body, and 1.75 mm maximum height - compatible with standard JEDEC MS-012 footprints and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6, 8, 9, 12, 13 | NAND Input (A/B per gate) | Dedicated Schmitt-trigger inputs for all four gates; no external biasing required |
| 3, 4, 10, 11 | NAND Output (Y per gate) | Push-pull CMOS outputs capable of sourcing/sinking 24 mA with rail-aligned VOH/VOL |
| 7 | GND | Ground reference for all internal circuitry and output stage return path |
| 14 | VCC | Primary power supply connection; decoupling capacitor (0.1 µF) recommended within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs per gate | Eliminates need for external hysteresis components; enables direct connection to slow/noisy sources like limit switches or analog comparators |
| ±24 mA output drive | Drives standard TTL/CMOS loads without buffer stages; reduces BOM count in interface modules |
| Pb-free SOIC-14 package | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 - supports lead-free reflow and long-term storage |
| Wide supply range (2.0–6.0 V) | Operates across 3.3 V and 5 V domains without level shifters - simplifies mixed-voltage board design |
| Low ICC (≤40 µA) | Enables integration into battery-backed or energy-harvesting systems where quiescent current must remain below 100 µA |
Applications
| Industrial Pushbutton Interface | Rotary Encoder Signal Conditioning |
|---|---|
Use Scenario: Mechanical pushbuttons in factory HMIs generate contact bounce with 5–20 ms glitches. IC Role / Device Role / Timing Role: MC74AC132NG acts as hardware debouncer - its Schmitt inputs reject sub-millisecond noise while providing clean, jitter-free logic edges. Use Value: Eliminates firmware debounce delays and CPU polling overhead; guarantees single-edge registration per press regardless of switch quality. |
Use Scenario: Quadrature A/B signals from incremental rotary encoders exhibit slow transitions and EMI-induced ringing. IC Role / Device Role / Timing Role: MC74AC132NG reshapes encoder waveforms into sharp, monotonic edges before feeding to microcontroller quadrature decoder peripherals. Use Value: Prevents false count increments during rotation; maintains position accuracy even at <1 rpm due to guaranteed hysteresis margin. |
| Power-On Reset Signal Generation | Thermostat Sensor Interface |
Use Scenario: RC-based POR circuits produce slow-rising VCC monitor signals vulnerable to noise during brown-out recovery. IC Role / Device Role / Timing Role: MC74AC132NG converts the RC ramp into a crisp reset pulse with controlled assertion timing via threshold hysteresis. Use Value: Ensures deterministic MCU reset release after power stabilization - avoids partial initialization or latch-up in embedded controllers. |
Use Scenario: Analog thermistor voltage dividers output slowly varying DC levels subject to PCB trace noise and thermal drift. IC Role / Device Role / Timing Role: MC74AC132NG functions as a two-threshold comparator (via NAND + feedback) to detect over/under-temperature events. Use Value: Provides stable on/off switching without oscillation near trip points - critical for HVAC safety cutoff and fan speed staging logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LV132APWR | Lower VCC range (2.0–5.5 V); 12 mA drive; 11 ns delay at 3.3 V | Better suited for 3.3 V-only systems; reduced drive limits fan-out in legacy 5 V backplanes | Select when operating exclusively at 3.3 V and lower power consumption is prioritized over drive strength |
| 74HC132D,653 | Wider VCC (2.0–6.0 V) but only ±4 mA drive; 21 ns delay at 4.5 V; non-Pb-free option available | Higher propagation delay limits use in fast-switching encoder interfaces; lacks >2000 V HBM rating | Choose for cost-sensitive consumer designs where ESD robustness and speed are secondary to unit price |
Compared with SN74LV132APWR and 74HC132D,653, the MC74AC132NG offers superior noise immunity (1.2 V hysteresis vs. ≤0.8 V), higher output drive (±24 mA vs. ≤12 mA), and faster response (9 ns vs. ≥11 ns), making it optimal for industrial-grade signal integrity where reliability outweighs marginal cost savings.
Availability
MC74AC132NG is available at Aetrix Electronics and suitable for industrial HMIs, motor control feedback loops, thermostat safety interlocks, and encoder-based motion systems requiring stable component supply across extended product lifecycles.
Supply support for MC74AC132NG 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient technologies for automotive, industrial, cloud, and IoT applications - delivering high-reliability components with rigorous AEC-Q200 and industrial qualification.
The MC74AC132NG belongs to onsemi's 74AC logic family, engineered for high-speed, low-noise digital interfacing in harsh environments - specifically targeting applications demanding robust signal conditioning without software intervention.
FAQ
What is the maximum supply voltage rating for MC74AC132NG?
The MC74AC132NG has an absolute maximum DC supply voltage (VCC) rating of +6.5 V, with recommended operation between 2.0 V and 6.0 V. Exceeding 6.5 V risks permanent damage per the datasheet's Maximum Ratings table. For sustained reliability in 5 V systems, operation at 5.0 V ±5% is advised, where MC74AC132NG delivers guaranteed 9.0 ns propagation delay and ±24 mA drive.
Does MC74AC132NG support 3.3 V logic systems?
Yes, MC74AC132NG fully supports 3.3 V operation: its recommended VCC range includes 3.0 V to 3.6 V, with characterized parameters including 13.0 ns propagation delay (max), 2.9 V VOH (min), and 0.1 V VOL (max) at 3.0 V. Input thresholds scale accordingly (Vt+ ≈ 2.2 V, Vt− ≈ 0.5 V), ensuring clean switching with standard 3.3 V CMOS outputs.
How does the Schmitt trigger hysteresis of MC74AC132NG improve noise immunity?
The MC74AC132NG provides 1.2 V typical hysteresis (Vt+ − Vt−) at 4.5 V supply, meaning input noise must exceed ±600 mV to cause unintended state changes. This prevents multiple toggling from slow edges or EMI spikes - unlike standard NAND gates - making MC74AC132NG ideal for debouncing switches or cleaning encoder signals without external filtering.
Is MC74AC132NG pin-compatible with MC74ACT132NG?
Yes, MC74AC132NG and MC74ACT132NG share identical SOIC-14 pinouts and logic functions, but differ electrically: MC74ACT132NG features TTL-compatible inputs (VIH = 2.0 V min), while MC74AC132NG uses CMOS-compatible inputs (VIH ≈ 0.7×VCC). Both drive ±24 mA and occupy the same PCB footprint, enabling direct substitution where input threshold requirements align.
What is the thermal resistance (θJA) of MC74AC132NG in SOIC-14 package?
The MC74AC132NG in SOIC-14 package has a junction-to-ambient thermal resistance (θJA) of 116 °C/W, measured per JESD51-7. At maximum rated power dissipation (1077 mW), this yields a worst-case junction temperature rise of ~125 °C above ambient - confirming safe operation up to +85 °C ambient when power dissipation remains below 50 mW per gate under typical loading conditions.
MC74AC132NG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74AC
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 4 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.5V ~ 1.1V
- Input Logic Level - High:
- 2.2V ~ 3.9V
- Max Propagation Delay @ V, Max CL:
- 9ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MC74AC132NG FAQ
1.How can I place an order for MC74AC132NG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74AC132NG 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 MC74AC132NG reliable?
The price and inventory of MC74AC132NG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74AC132NG is usually 5 days.
3.What payment methods are accepted for MC74AC132NG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74AC132NG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74AC132NG?
MC74AC132NG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74AC132NG 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 MC74AC132NG?
For technical support, including MC74AC132NG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74AC132NG requirements.
6.How does Aetrix verify that MC74AC132NG is sourced from the original manufacturer or authorized distributors?
All MC74AC132NG 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 MC74AC132NG meets industry standards.
7.What is the process for return or replacement of MC74AC132NG?
All MC74AC132NG units undergo pre-shipment inspection (PSI). If there is an issue with MC74AC132NG, 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 MC74AC132NG part is unused and in its original packaging.
Return procedure for MC74AC132NG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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