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onsemi MC74AC11N
- Part No.:
- MC74AC11N
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MC74AC11N.pdf
- Description:
- IC GATE AND 3CH 3-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,393
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Product details
Overview
MC74AC11N from onsemi is a triple 3-input AND gate in high-performance silicon-gate CMOS technology, operating across 2.0–6.0 V supply range with 8.0 ns typical propagation delay at 5.0 V, ±24 mA output drive capability, and −40°C to +85°C industrial temperature range. It performs combinational logic gating in digital control, address decoding, and enable signal conditioning circuits.
For engineers reviewing the MC74AC11N datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage compatibility (2.0–6.0 V), output drive strength (±24 mA), propagation delay (≤8.5 ns max at 5 V), input threshold levels (VIH = 2.1 V min at VCC = 3.0 V), and SOIC-14 Pb-free packaging compliance.
Technical Context
The MC74AC11N implements three independent 3-input AND functions using CMOS transistor pairs with rail-to-rail output swing and low static current. Each gate features symmetrical input thresholds referenced to VCC and supports fan-out of ≥10 LS-TTL loads at 5 V.
It operates without external biasing, requires no pull-up resistors, and maintains logic integrity under fast edge rates (input rise/fall time ≤40 ns/V at VCC = 4.5 V). Input leakage remains ≤±1.0 µA over full temperature range, ensuring stable operation in noise-sensitive digital subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Triple 3-input AND gate - enables compact implementation of multi-input enable/selection logic without cascading gates |
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing including 3.3 V and 5 V domains |
| Propagation Delay (tPLH/tPHL) | 8.0 ns typ / 8.5 ns max at VCC = 5.0 V, CL = 50 pF - ensures timing predictability in synchronous control paths |
| Output Drive | ±24 mA - drives standard TTL loads directly and sustains signal integrity across PCB traces up to 10 cm |
| Input Threshold (VIH/VIL) | VIH = 2.1 V min, VIL = 0.9 V max at VCC = 3.0 V - provides robust noise margin (>0.6 V) in noisy industrial environments |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded controllers and motor drive interface logic |
| Quiescent ICC | 40 µA max at VCC = 5.5 V - enables low-power standby modes in battery-backed systems |
Pinout & Package
MC74AC11N is housed in a 14-lead SOIC package (Case 751A, 3.9 mm width), with gull-wing leads, Pb-free finish, and JEDEC-standard footprint. Pin 1 is marked by a notch or dot; pin 7 is GND and pin 14 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Input A1, B1, C1 of Gate 1 | Three logic inputs for first AND gate - all must be HIGH for Y1 output assertion |
| 4 | Output Y1 | Active-HIGH AND result of pins 1–3 - drives downstream logic or enable lines |
| 5, 6, 13 | Input A2, B2, C2 of Gate 2 | Three logic inputs for second AND gate - electrically isolated from Gate 1 |
| 12 | Output Y2 | Active-HIGH AND result of pins 5, 6, 13 - shares same VCC/GND rails but independent logic path |
| 8, 9, 10 | Input A3, B3, C3 of Gate 3 | Three logic inputs for third AND gate - fully decoupled from other gates |
| 11 | Output Y3 | Active-HIGH AND result of pins 8–10 - supports parallel logic evaluation without timing skew |
| 7 | GND | Ground reference for all internal circuitry and I/O - must be low-impedance connection |
| 14 | VCC | Positive supply rail - bypass capacitor (0.1 µF ceramic) required within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail CMOS output swing | VOH ≥ 2.9 V and VOL ≤ 0.1 V at VCC = 3.0 V - eliminates level-shifting needs in 3.3 V systems |
| High noise immunity | Input hysteresis not present, but VIH/VIL separation ≥1.2 V at VCC = 3.0 V - rejects transient coupling on shared PCB traces |
| Low dynamic power consumption | CPD = 20 pF - limits switching current to <1 mA at 1 MHz toggle rate, reducing thermal load |
| Pb-free and RoHS-compliant | Marked with "G" suffix and qualified to MSL Level 1 - supports lead-free reflow assembly without moisture sensitivity concerns |
| ESD robustness | HBM > 2000 V - withstands handling in non-ESD-controlled production environments |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Enabling discrete sensor inputs (e.g., door open, hood latch) before routing to microcontroller GPIO. IC Role / Device Role / Timing Role: Logic-level AND gate that validates multiple mechanical switch closures simultaneously before asserting an interrupt-enable signal. Use Value: Reduces MCU pin count by consolidating three physical switches into one validated enable line, while maintaining deterministic 8.5 ns response latency. |
Use Scenario: Controlling headlight relay activation only when ignition ON, light switch ON, and ambient light sensor below threshold. IC Role / Device Role / Timing Role: Combinatorial logic element performing real-time 3-input validation prior to power-stage enable. Use Value: Eliminates software polling loop overhead and guarantees sub-10 ns decision latency independent of MCU firmware state. |
| Medical Infusion Pump Safety Interlock | Communications Equipment Status Monitoring |
|
Use Scenario: Validating pump motor enable only when occlusion sensor, air-in-line sensor, and door-closed switch are all asserted. IC Role / Device Role / Timing Role: Hardware-enforced safety gate preventing actuation unless all three critical conditions are met. Use Value: Provides fail-safe hardware layer compliant with IEC 62304 Class B requirements, independent of processor-based control logic. |
Use Scenario: Monitoring link-up status across three Ethernet PHYs and enabling system management controller only when all links are active. IC Role / Device Role / Timing Role: Parallel status aggregator feeding centralized health monitoring logic. Use Value: Enables immediate fault detection without software scan delay, supporting <100 ms system recovery SLA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AC11DR | Same logic function, identical AC/DC specs, TI-manufactured SOIC-14 package with same pinout | No functional deviation - direct second-source option with identical timing and drive capability | Select when dual-sourcing is required for supply chain resilience without design change |
| 74VHC11M | Higher VCC max (7 V), lower ICC (2 µA typ), but slower tPD (10.5 ns max at 5 V); different input thresholds (VIH = 3.5 V min) | Requires level translation if interfacing with 3.3 V logic; unsuitable for low-voltage (2.0–3.0 V) operation | Prefer only in 5 V-only systems where ultra-low quiescent current outweighs speed penalty |
Compared with MC74AC11N, SN74AC11DR offers identical performance and drop-in compatibility, while 74VHC11M trades speed and low-voltage support for lower static power and higher voltage tolerance - making it suitable only in 5 V legacy designs where timing slack exists.
Availability
MC74AC11N is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical device safety interlocks requiring stable component supply and long-term manufacturability.
Supply support for MC74AC11N 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 specializing in energy-efficient power management, analog, sensing, and logic solutions for automotive, industrial, and cloud infrastructure markets.
The MC74AC11N belongs to the 74AC logic family designed for high-speed, low-power CMOS replacement of legacy TTL in industrial control and instrumentation systems where reliability and wide supply range are critical.
FAQ
What is the maximum supply voltage rating for MC74AC11N?
The MC74AC11N has an absolute maximum DC supply voltage (VCC) rating of +6.5 V. However, its recommended operating range is 2.0 V to 6.0 V. Operation above 6.0 V may degrade long-term reliability even if within absolute maximum limits, and the device is not characterized for performance beyond 6.0 V per the datasheet's Recommended Operating Conditions table.
Does MC74AC11N support 3.3 V logic systems?
Yes, MC74AC11N fully supports 3.3 V operation: it guarantees VIH ≥ 2.1 V and VIL ≤ 0.9 V at VCC = 3.0 V, providing >0.6 V noise margin. Its VOH ≥ 2.9 V and VOL ≤ 0.1 V at 3.0 V ensure clean interfacing with standard 3.3 V CMOS inputs, and propagation delay remains ≤9.5 ns - making MC74AC11N suitable for mixed-voltage board designs.
Is MC74AC11N pin-compatible with MC74ACT11?
No, MC74AC11N and MC74ACT11 are not pin-compatible in functional use despite identical pinouts: MC74ACT11 has TTL-compatible inputs (VIH = 2.0 V min at VCC = 4.5 V), while MC74AC11N uses CMOS thresholds (VIH = 2.25 V min at same VCC). Swapping them risks incorrect logic interpretation in TTL-driven systems, and the datasheet explicitly separates their DC characteristics tables.
What is the thermal resistance (θJA) of MC74AC11N in SOIC-14 package?
The junction-to-ambient thermal resistance (θJA) for MC74AC11N in the SOIC-14 package is 116°C/W, measured per JESD51-7 in still air. This value assumes standard PCB layout with minimal copper pour; actual θJA improves significantly with thermal vias and ground-plane copper, enabling continuous operation at full output drive (±24 mA) up to +85°C ambient.
Can MC74AC11N drive LED indicators directly?
MC74AC11N can sink or source up to 24 mA per output, sufficient to drive standard 2 mA–10 mA LEDs. However, it lacks current regulation: an external series resistor must be used to limit current (e.g., 220 Ω for ~10 mA at 3.3 V). Also, sustained 24 mA operation across all three outputs increases total ICC and local heating - verify thermal derating in your layout before full-load LED driving.
MC74AC11N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74AC
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- AND Gate
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 4 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.9V ~ 1.65V
- Input Logic Level - High:
- 2.1V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 8ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MC74AC11N FAQ
1.How can I place an order for MC74AC11N through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74AC11N 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 MC74AC11N reliable?
The price and inventory of MC74AC11N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74AC11N is usually 5 days.
3.What payment methods are accepted for MC74AC11N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74AC11N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74AC11N?
MC74AC11N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74AC11N 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 MC74AC11N?
For technical support, including MC74AC11N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74AC11N requirements.
6.How does Aetrix verify that MC74AC11N is sourced from the original manufacturer or authorized distributors?
All MC74AC11N 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 MC74AC11N meets industry standards.
7.What is the process for return or replacement of MC74AC11N?
All MC74AC11N units undergo pre-shipment inspection (PSI). If there is an issue with MC74AC11N, 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 MC74AC11N part is unused and in its original packaging.
Return procedure for MC74AC11N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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