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Texas Instruments SN74ACT11DG4
- Part No.:
- SN74ACT11DG4
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN74ACT11DG4.pdf
- Description:
- IC GATE AND 3CH 3-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,587
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Product details
Overview
SN74ACT11DG4 from Texas Instruments is a triple 3-input AND gate logic IC operating at 4.5V–5.5V VCC, with TTL-compatible inputs, 10.5ns max propagation delay at 5V, and SOIC-14 packaging. It performs Y = A • B • C Boolean logic in positive logic and is used in digital control signal conditioning for motor controllers and system enable logic.
For engineers reviewing the SN74ACT11DG4 datasheet, SN74ACT11DG4 pinout, SN74ACT11DG4 application, or SN74ACT11DG4 equivalent, this page delivers verified electrical specs, package dimensions, functional pin mapping, real-world use cases, and validated alternative parts - all grounded in TI's SCAS531E production data sheet (Feb 2025 revision).
Technical Context
The SN74ACT11DG4 implements three independent, non-inverting 3-input AND gates using ACT (Advanced CMOS TTL-compatible) technology. Each gate follows strict positive-logic truth table behavior: output HIGH only when all three inputs are HIGH; otherwise LOW. No internal latching, clocking, or feedback paths exist - it is purely combinational logic.
All inputs tolerate up to 5.5V regardless of VCC, enabling mixed-voltage interfacing. Outputs drive ±24mA at 5V with VOH ≥ 3.76V and VOL ≤ 0.44V under load, supporting direct connection to TTL and CMOS loads without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5V to 5.5V - ensures compatibility with standard 5V logic rails and tolerance to supply ripple. |
| Max tpd | 10.5ns at 5V - enables reliable operation in systems with clock periods ≥ 21ns (e.g., ≤47.6 MHz toggle rate per gate). |
| Input Voltage Range | 0V to VCC - supports standard CMOS input thresholds; inputs accept up to 5.5V even if VCC = 4.5V. |
| IOH/IOL | ±24mA - sufficient to directly drive multiple 74-series TTL inputs or small LEDs without external buffers. |
| Logic Function | Y = A • B • C (positive logic) - provides single-gate 3-signal conjunction, eliminating need for cascaded 2-input gates. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control environments. |
| Power Dissipation Cap. | 20pF (Cpd) - allows accurate dynamic power estimation: Pdyn ≈ Cpd × VCC² × f. |
Pinout & Package
SN74ACT11DG4 uses a 14-pin SOIC (D) package measuring 8.65mm × 6.0mm body size (19.3mm × 9.4mm including leads), with gull-wing leads and RoHS-compliant NiPdAu finish. Thermal pad is not present (BQA/WQFN variant has thermal pad; D package does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 1B, 1C | Input (Channel 1) | Three independent inputs for first AND gate; must be terminated to VCC or GND if unused. |
| 1Y | Output (Channel 1) | Active-HIGH output of Channel 1; sinks or sources up to 24mA. |
| 2A, 2B, 2C | Input (Channel 2) | Three independent inputs for second AND gate; electrically isolated from other channels. |
| 2Y | Output (Channel 2) | Active-HIGH output of Channel 2; shares same VCC/GND rails but no internal coupling. |
| 3A, 3B, 3C | Input (Channel 3) | Three independent inputs for third AND gate; identical timing and voltage specs as Channels 1–2. |
| 3Y | Output (Channel 3) | Active-HIGH output of Channel 3; fully symmetrical to other outputs in drive strength and delay. |
| VCC (Pin 14) | Power Supply | Primary 4.5–5.5V supply; requires local 0.1µF ceramic decoupling capacitor. |
| GND (Pin 7) | Ground Reference | Common return path for all channels; must be low-impedance to minimize ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | Accepts VIH ≥ 2.0V and VIL ≤ 0.8V - interoperates directly with legacy 74LS/74F outputs without level shifters. |
| High noise immunity | Input hysteresis not specified, but VIH–VIL margin of 1.2V at 5V provides robust rejection of digital noise on control lines. |
| Low propagation skew | tPLH/tPHL match within 1ns (typ) - ensures synchronous assertion of multiple enable signals across channels. |
| Wide input voltage tolerance | Inputs accept up to 5.5V regardless of VCC - simplifies interface to 5V sensors or microcontroller GPIOs in mixed-rail systems. |
| Industrial temperature range | –40°C to +85°C operation - supports deployment in motor drives, PLC I/O modules, and factory automation hardware. |
Applications
| Motor Controller Enable Logic | System Power-On Self-Test (POST) Gate |
|---|---|
Use Scenario: Three independent fault signals (overcurrent, overtemperature, undervoltage) must all be cleared before enabling a BLDC motor driver IC. IC Role / Device Role: SN74ACT11DG4 acts as a hardware-enforced 3-input safety interlock, generating a single active-HIGH enable signal only when all conditions are met. Use Value: Eliminates firmware dependency for critical startup validation; provides deterministic, cycle-accurate response with <11ns latency. |
Use Scenario: A microcontroller-based diagnostic board verifies RAM, flash, and peripheral initialization before releasing reset to the main CPU. IC Role / Device Role: SN74ACT11DG4 combines three independent "ready" flags from subsystems into one global "all-clear" signal. Use Value: Reduces PCB routing complexity versus discrete diode-OR or multi-gate solutions; maintains signal integrity with matched propagation delays. |
| Digital Signal Synchronization | Legacy Bus Arbitration Interface |
Use Scenario: A fieldbus node must assert a "data valid" strobe only after valid address, data, and handshake signals are simultaneously present. IC Role / Device Role: SN74ACT11DG4 serves as a synchronous qualifier gate, ensuring precise timing alignment of parallel bus signals. Use Value: Provides sub-11ns setup/hold margin for downstream latches; avoids metastability risks inherent in asynchronous gating. |
Use Scenario: An industrial controller interfaces with older 8-bit ISA-style peripherals requiring a 3-wire "grant" signal derived from master enable, slot select, and priority status. IC Role / Device Role: SN74ACT11DG4 implements fixed-priority arbitration logic in hardware, independent of processor intervention. Use Value: Guarantees deterministic bus grant timing; removes software overhead and interrupt latency from critical resource allocation. |
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 |
|---|---|---|---|
| SN74ACT11DR | Same die, identical AC/DC specs, SOIC-14 package, RoHS-compliant NiPdAu finish, same marking "ACT11", MSL Level-1. | No functional difference; DR is standard tape-and-reel variant; DG4 is green (halogen-free) variant with identical performance. | Select SN74ACT11DR for cost-sensitive high-volume production where halogen-free compliance is not mandated. |
| SN74HC11DR | CMOS family: lower drive (±5.2mA), slower max tpd (24ns), narrower VCC range (2–6V), no TTL input compatibility. | Suitable only for low-power, low-speed, single-supply 3.3V/5V systems; cannot replace SN74ACT11DG4 in TTL-interfaced or 24mA-drive applications. | Choose SN74HC11DR only when drive strength and input voltage tolerance are non-critical and power budget is constrained. |
Compared with SN74ACT11DR, SN74ACT11DG4 offers identical functionality with halogen-free packaging - ideal for EU RoHS+REACH compliance. Versus SN74HC11DR, it delivers 4.6× higher output current and 2.3× faster propagation, making it irreplaceable in noise-prone industrial control where TTL compatibility and drive margin are essential.
Availability
SN74ACT11DG4 is available at Aetrix Electronics and suitable for motor control interlocks, industrial POST sequencing, digital bus qualification, and legacy bus arbitration requiring stable component supply and long-term manufacturability.
Supply support for SN74ACT11DG4 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
Texas Instruments is a U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions with global manufacturing and quality certification (ISO 9001, IATF 16949).
The SN74ACT11DG4 belongs to TI's Advanced CMOS (ACT) logic family, designed specifically for industrial and automotive applications demanding TTL-compatible interfacing, robust noise immunity, and guaranteed timing performance across temperature extremes.
FAQ
What is the maximum operating frequency supported by SN74ACT11DG4?
The SN74ACT11DG4 has a maximum propagation delay of 10.5ns at 5V, corresponding to a theoretical toggle limit of ~47.6 MHz per gate under ideal conditions. However, actual system frequency depends on load capacitance, trace routing, and supply stability - design margins should keep clock edges >21ns apart to ensure reliable switching.
Can SN74ACT11DG4 inputs be left floating?
No - SN74ACT11DG4 inputs must never be left floating. All unused inputs must be tied to VCC or GND via direct connection or pull-up/pull-down resistors (e.g., 10kΩ). Floating inputs cause undefined logic states, increased ICC, and potential device malfunction due to internal parasitic paths.
Is SN74ACT11DG4 pin-compatible with SN74ACT11DR?
Yes - SN74ACT11DG4 and SN74ACT11DR share identical SOIC-14 pinout, mechanical dimensions, thermal characteristics, and electrical specifications. The only difference is halogen-free packaging (DG4) versus standard RoHS-compliant packaging (DR); no PCB layout changes are required for substitution.
Does SN74ACT11DG4 support mixed-voltage operation between inputs and VCC?
Yes - SN74ACT11DG4 inputs tolerate voltages up to 5.5V regardless of VCC (4.5–5.5V), enabling safe interfacing with 5V-tolerant microcontrollers or sensors even when VCC is set to 4.75V. This eliminates need for external level translators in many industrial signal-chain designs.
What decoupling capacitor value is recommended for SN74ACT11DG4?
A 0.1µF ceramic capacitor placed as close as possible between VCC (Pin 14) and GND (Pin 7) is mandatory for stable operation. For systems with high-frequency noise or multiple logic devices, paralleling with a 1µF capacitor further improves high-frequency bypassing - both must be mounted within 3mm of the pins.
SN74ACT11DG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ACT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- AND Gate
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 9.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
SN74ACT11DG4 FAQ
1.How can I place an order for SN74ACT11DG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ACT11DG4 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 SN74ACT11DG4 reliable?
The price and inventory of SN74ACT11DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ACT11DG4 is usually 5 days.
3.What payment methods are accepted for SN74ACT11DG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ACT11DG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ACT11DG4?
SN74ACT11DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ACT11DG4 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 SN74ACT11DG4?
For technical support, including SN74ACT11DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ACT11DG4 requirements.
6.How does Aetrix verify that SN74ACT11DG4 is sourced from the original manufacturer or authorized distributors?
All SN74ACT11DG4 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 SN74ACT11DG4 meets industry standards.
7.What is the process for return or replacement of SN74ACT11DG4?
All SN74ACT11DG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74ACT11DG4, 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 SN74ACT11DG4 part is unused and in its original packaging.
Return procedure for SN74ACT11DG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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