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onsemi MC74ACT00NG
- Part No.:
- MC74ACT00NG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MC74ACT00NG.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,696
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Product details
Overview
MC74ACT00NG from onsemi is a quad 2-input NAND gate in the 74ACT logic family, designed for high-speed TTL-compatible digital signal processing at 5 V supply. It delivers ±24 mA output drive, supports −55 °C to +125 °C operation, and features 1.5 ns typical propagation delay (tPLH/tPHL) at VCC = 5.0 V with CL = 50 pF. It is used in industrial control logic, bus interface buffering, and discrete combinational logic blocks.
For engineers reviewing the MC74ACT00NG datasheet, pinout, applications, or equivalent options, key selection criteria include its 4.5–5.5 V operating range, TTL-level input compatibility, guaranteed 24 mA sink/source capability, and SOIC-14 Pb-free packaging - all critical for legacy system upgrades and noise-immune digital interfacing.
Technical Context
The MC74ACT00NG implements four independent 2-input NAND gates using silicon-gate CMOS technology with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V). Its output stage is optimized for fast edge rates (tr/tf ≤ 8.0 ns/V at 5.5 V) and robust drive into capacitive loads up to 50 pF.
It meets JEDEC Std. No. 7A for commercial and extended temperature operation, incorporates latch-up immunity >100 mA per I/O, and features ESD protection exceeding 2000 V (HBM). The device draws only 4.0 µA typical quiescent current (ICC) and exhibits low dynamic power dissipation via CPD = 30 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NAND (Y = A·B) |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and mixed-voltage systems |
| Output Drive (IOL/IOH) | ±24 mA - sufficient to directly drive multiple 74-series TTL inputs or small LEDs without external buffers |
| Propagation Delay (tPLH/tPHL) | 1.5 ns (typ), 9.5 ns (max) at 5 V - enables sub-100 MHz clock domain logic in discrete glue logic |
| Input Thresholds (VIH/VIL) | VIH ≥ 2.0 V, VIL ≤ 0.8 V at 5 V - guarantees reliable recognition of TTL logic levels |
| Operating Temperature | −55 °C to +125 °C - qualified for automotive under-hood, industrial PLC, and aerospace avionics environments |
| Package | SOIC-14 (Case 751A), Pb-free - industry-standard footprint with full RoHS compliance and reflow-solder compatibility |
Pinout & Package
MC74ACT00NG is housed in a 14-lead SOIC package (Case 751A-03) with standard 1.27 mm pitch and 8.55–8.75 mm body width. Pin 1 is marked by a notch or bevel; pin 7 is GND and pin 14 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 | First input of Gate 1 - accepts standard TTL or CMOS logic levels |
| 2 | B1 | Second input of Gate 1 - dual-input NAND requires both A1 and B1 high for low output |
| 3 | Y1 | Output of Gate 1 - active-low NAND result; drives downstream logic or loads up to 24 mA |
| 4 | A2 | First input of Gate 2 - electrically isolated from other gates; no internal crosstalk |
| 5 | B2 | Second input of Gate 2 - supports independent logic function per gate pair |
| 6 | Y2 | Output of Gate 2 - same electrical specs as Y1; usable for parallel logic paths |
| 7 | GND | Ground reference - must be low-impedance connection to minimize switching noise |
| 8 | Y3 | Output of Gate 3 - shares VCC/GND rails but has independent input/output routing |
| 9 | A3 | First input of Gate 3 - pinout symmetry allows compact PCB layout with minimal trace crossing |
| 10 | B3 | Second input of Gate 3 - matches timing and drive specs across all four gates |
| 11 | Y4 | Output of Gate 4 - final gate output; identical AC/DC performance to Y1–Y3 |
| 12 | A4 | First input of Gate 4 - completes quad functionality in single SOIC footprint |
| 13 | B4 | Second input of Gate 4 - enables full Boolean NAND implementation without external components |
| 14 | VCC | Positive supply - must be decoupled with 0.1 µF ceramic capacitor near pin for stable high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V - eliminates need for level-shifting when interfacing with legacy 74LS or microcontroller GPIO |
| High-output drive (±24 mA) | Supports fan-out of ≥10 standard TTL loads or direct LED driving without series resistors in low-current applications |
| Low propagation delay (1.5 ns typ) | Enables use in 50+ MHz synchronous logic paths where discrete gates replace FPGA LUTs or CPLD macrocells |
| Extended temperature range (−55 °C to +125 °C) | Qualified for deployment in uncontrolled environments such as motor drives, power inverters, and outdoor telecom equipment |
| Pb-free SOIC-14 package | Complies with RoHS Directive 2011/65/EU and supports lead-free reflow profiles (JEDEC J-STD-020, MSL Level 1) |
Applications
| Industrial Control Logic | Bus Interface Buffering |
|---|---|
Use Scenario: Discrete logic for emergency stop sequencing, interlock validation, and sensor status aggregation in PLC backplanes. IC Role / Device Role / Timing Role: MC74ACT00NG serves as combinatorial decision logic - e.g., AND-ing multiple safety signals before enabling actuator drivers. Use Value: Guaranteed 9.5 ns max propagation delay ensures deterministic response within 100 ns safety-critical windows; ±24 mA drive directly interfaces with optocoupler inputs. |
Use Scenario: Isolating and conditioning address/data strobes between microcontroller and peripheral ICs (e.g., ADCs, DACs, EEPROMs). IC Role / Device Role / Timing Role: MC74ACT00NG acts as a polarity-inverting buffer - converting enable signals or generating chip-select negations with precise timing. Use Value: Matched tPLH/tPHL (≤9.5 ns) prevents skew-induced bus contention; TTL-compatible inputs accept MCU GPIO without pull-ups or voltage dividers. |
| Legacy System Upgrades | Digital Signal Conditioning |
Use Scenario: Replacing obsolete 74LS00 in aging instrumentation or test equipment requiring drop-in reliability and lower power. IC Role / Device Role / Timing Role: MC74ACT00NG functions as a pin-compatible functional replacement - replicating NAND truth table while improving noise margin and speed. Use Value: VIH/VIL specs match LS-TTL exactly; 4.5–5.5 V range avoids regulator redesign; 40 µA max ICC reduces thermal load vs. 74LS00's ~15 mA. |
Use Scenario: Debouncing mechanical switch inputs or synchronizing asynchronous event flags (e.g., interrupt requests) into synchronous clock domains. IC Role / Device Role / Timing Role: MC74ACT00NG implements SR latches or edge-detection circuits using cross-coupled NAND gates. Use Value: Sub-10 ns propagation enables clean pulse generation down to 50 ns width; low input leakage (<1 µA) prevents false triggering in high-impedance nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT00DR | TI part with identical logic function, 4.5–5.5 V range, ±24 mA drive, and SOIC-14 package; tPLH/tPHL max = 9.5 ns (same spec) | No functional difference; pinout and timing fully aligned with MC74ACT00NG | Preferred for TI-centric BOMs or dual-sourcing programs requiring second-source qualification |
| 74VHC00M | ON Semiconductor VHC-family part; wider 2–5.5 V range but lower drive (±8 mA); max tPLH/tPHL = 7.5 ns at 5 V | Not suitable for TTL-load fan-out or high-noise industrial environments due to reduced noise immunity and drive strength | Select only when ultra-low ICC (<2 µA) or multi-voltage flexibility outweighs drive and noise requirements |
Compared with SN74ACT00DR, MC74ACT00NG offers identical timing and drive but different marking and tape-and-reel packaging; versus 74VHC00M, MC74ACT00NG provides 3× higher output current and superior noise margins - critical for industrial signal integrity.
Availability
MC74ACT00NG is available at Aetrix Electronics and suitable for industrial control logic, bus interface buffering, and legacy system upgrades requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MC74ACT00NG 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, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC74ACT00NG belongs to the 74ACT advanced CMOS logic family, engineered for high-speed, TTL-compatible digital interfacing in harsh environments - emphasizing noise immunity, wide temperature operation, and robust output drive.
FAQ
What is the recommended operating voltage range for the MC74ACT00NG?
The MC74ACT00NG is specified for 4.5 V to 5.5 V DC supply operation. Operation outside this range - including below 4.5 V - is not guaranteed per datasheet; at 4.5 V, VIH remains ≥2.0 V and VOH ≥4.4 V, ensuring reliable TTL-level compatibility. Using 3.3 V violates the ACT family's input threshold design and risks incorrect logic interpretation.
Does the MC74ACT00NG support operation at −55 °C?
Yes, the MC74ACT00NG is fully characterized and guaranteed over −55 °C to +125 °C ambient temperature. All DC and AC parameters - including propagation delay, output drive, and input thresholds - are validated across this full range per JEDEC JESD22-A104 and JESD22-A108 testing standards.
Is the MC74ACT00NG pin-compatible with the older 74LS00?
Yes, the MC74ACT00NG uses the same SOIC-14 pinout as the 74LS00 and performs the identical quad 2-input NAND function. However, it is not a direct drop-in replacement without verification: MC74ACT00NG draws far less supply current (µA vs. mA) and has faster edges, which may require adjusting decoupling or adding series termination in legacy designs sensitive to ringing.
What is the maximum capacitive load the MC74ACT00NG can drive reliably?
The MC74ACT00NG is tested and specified with CL = 50 pF, and its AC characteristics (propagation delay, rise/fall times) are guaranteed under that condition. Driving >50 pF increases delay nonlinearly and may cause marginal timing - for loads >75 pF, add a series resistor (10–33 Ω) near the output to dampen ringing without degrading logic levels.
How does the MC74ACT00NG handle unused inputs?
Unused inputs on the MC74ACT00NG must be tied to a valid logic level - either VCC or GND - to prevent floating nodes that cause increased ICC, oscillation, or ESD susceptibility. Leaving inputs open violates the Absolute Maximum Ratings and may induce latch-up. For NAND gates, tying an unused input to VCC disables that gate's output (Y = NOT A), while tying to GND forces output high regardless of the other input.
MC74ACT00NG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ACT
- 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:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 4 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 9ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MC74ACT00NG FAQ
1.How can I place an order for MC74ACT00NG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74ACT00NG 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 MC74ACT00NG reliable?
The price and inventory of MC74ACT00NG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74ACT00NG is usually 5 days.
3.What payment methods are accepted for MC74ACT00NG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74ACT00NG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74ACT00NG?
MC74ACT00NG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74ACT00NG 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 MC74ACT00NG?
For technical support, including MC74ACT00NG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74ACT00NG requirements.
6.How does Aetrix verify that MC74ACT00NG is sourced from the original manufacturer or authorized distributors?
All MC74ACT00NG 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 MC74ACT00NG meets industry standards.
7.What is the process for return or replacement of MC74ACT00NG?
All MC74ACT00NG units undergo pre-shipment inspection (PSI). If there is an issue with MC74ACT00NG, 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 MC74ACT00NG part is unused and in its original packaging.
Return procedure for MC74ACT00NG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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