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onsemi 74ACT10SCX
- Part No.:
- 74ACT10SCX
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74ACT10SCX.pdf
- Description:
- IC GATE NAND 3CH 3-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,363
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Product details
Overview
74ACT10SCX from Fairchild Semiconductor is a triple 3-input NAND gate logic IC operating at 4.5V–5.5V supply, delivering ±24mA output drive, 6.5ns typical propagation delay (tPLH/tPHL), and TTL-compatible input thresholds. It serves as a high-speed combinational logic building block in digital control, address decoding, and bus interface circuits.
For engineers reviewing the 74ACT10SCX datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, SOIC-14 package details, real-world use cases, and validated alternative parts for industrial and embedded system design.
Technical Context
The 74ACT10SCX implements three independent 3-input NAND gates in a single monolithic CMOS device with ACT-series TTL-compatible input logic levels and fast AC switching performance. Its architecture supports direct interfacing with both TTL and CMOS families without level-shifting.
It operates within –40°C to +85°C ambient temperature, features low ICC quiescent current (≤40µA at VCC = 5.5V), and meets JEDEC MS-012 SOIC package standards. Input edge rate requirements are defined at 125mV/ns for ACT logic transitions between 0.8V and 2.0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Three independent 3-input NAND gates - enables compact implementation of multi-input logic conditions without external gating. |
| Supply Voltage Range | 4.5V to 5.5V - ensures compatibility with standard 5V TTL/CMOS systems and stable operation under rail tolerance. |
| Propagation Delay | 6.5ns typical (tPLH/tPHL, VCC = 5.0V, CL = 50pF) - supports >100MHz toggle rates in synchronous logic paths. |
| Output Drive | ±24mA per output - directly drives multiple TTL inputs (fan-out ≥10) or small capacitive loads without buffers. |
| Input Thresholds | VIH = 2.0V min, VIL = 0.8V max (VCC = 4.5V–5.5V) - provides robust noise margin against TTL-level signals. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade reliability in non-automotive embedded environments. |
| Quiescent ICC | 40µA max (VCC = 5.5V) - minimizes static power in battery-backed or low-power standby modes. |
Pinout & Package
74ACT10SCX is housed in a 14-lead Small Outline Integrated Circuit (SOIC) package per JEDEC MS-012, 0.150" narrow body, with 1.27mm lead pitch and gull-wing terminations suitable for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 13 | Inputs A1, B1, C1 | First NAND gate inputs - all three must be HIGH to pull Output 3 LOW. |
| 3 | Output O1 | Inverted AND of Pins 1,2,13 - active-LOW logic output with 24mA sink/source capability. |
| 4, 5, 12 | Inputs A2, B2, C2 | Second NAND gate inputs - electrically isolated from Gate 1; identical timing and drive. |
| 6 | Output O2 | Inverted AND of Pins 4,5,12 - shares same VCC/GND rails but no internal coupling to other outputs. |
| 8, 9, 10 | Inputs A3, B3, C3 | Third NAND gate inputs - fully independent; supports asynchronous logic partitioning. |
| 11 | Output O3 | Inverted AND of Pins 8,9,10 - enables triple parallel logic evaluation in one footprint. |
| 7 | GND | Ground reference for all logic and I/O - requires low-impedance PCB plane connection to minimize ground bounce. |
| 14 | VCC | +5V supply rail - must be decoupled locally (0.1µF ceramic + 10µF bulk) near Pin 14 for stable AC operation. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH/VIL thresholds match legacy 5V TTL, enabling drop-in replacement in existing designs without redesign. |
| High-output drive | ±24mA sourcing/sinking eliminates need for external buffer stages when driving multiple TTL loads. |
| Low propagation skew | Matched tPLH/tPHL delays (<1ns variation across gates) ensure deterministic timing in parallel logic paths. |
| JEDEC-compliant SOIC | M14A package enables automated SMT placement and reflow compatibility with industry-standard pick-and-place equipment. |
| Industrial temperature range | –40°C to +85°C operation supports deployment in factory automation, test equipment, and telecom infrastructure. |
Applications
| Address Decoding | Bus Interface Control |
|---|---|
Use Scenario: Selecting memory or peripheral devices on an 8-bit microcontroller bus using 3-bit address lines. IC Role / Device Role / Timing Role: Logic gate performing active-LOW chip select generation based on address bit combinations. Use Value: Reduces decode logic count by 33% vs. dual 2-input NANDs; 6.5ns delay ensures setup/hold compliance with 12MHz bus clocks. |
Use Scenario: Enabling/disabling bidirectional data bus transceivers during read/write cycles. IC Role / Device Role / Timing Role: Combinational enable signal generator combining RD#, WR#, and direction control. Use Value: Eliminates race conditions via guaranteed monotonic output transitions; ±24mA drive handles transceiver OE pin capacitance. |
| Digital Power Sequencing | Test Pattern Generation |
Use Scenario: Controlling startup order of multiple DC-DC converters in FPGA-based power management. IC Role / Device Role / Timing Role: NAND-based priority encoder ensuring Converter A powers before B and C. Use Value: No external timing components required; 40µA ICC enables always-on sequencing logic with negligible standby draw. |
Use Scenario: Generating pseudo-random test vectors for boundary-scan or functional testing of digital ASICs. IC Role / Device Role / Timing Role: Feedback-controlled combinatorial node in linear feedback shift register (LFSR) topology. Use Value: Propagation delay consistency across all three gates ensures predictable LFSR clock-to-Q timing and avoids metastability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple 3-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT10DR | Same logic function, identical AC/ACT specs, SOIC-14 package (M14A), TI-manufactured with different traceability and RoHS profile. | No functional deviation; compatible in all 74ACT10SCX use cases requiring industrial temp range and 5V operation. | Select when TI-sourced supply chain alignment or alternate logistics support is required. |
| MC74ACT10DG | Onsemi variant with identical pinout and DC/AC specs, but rated for extended –55°C to +125°C operation and different thermal resistance. | Suitable for harsher environments (e.g., outdoor telecom cabinets); higher cost and longer lead times than 74ACT10SCX. | Choose only if extended temperature qualification is mandatory; otherwise, 74ACT10SCX offers optimal cost/performance balance. |
Compared with SN74ACT10DR and MC74ACT10DG, the 74ACT10SCX delivers identical logic behavior and timing in industrial-temperature 5V systems, with lower procurement cost and shorter lead time - making it the preferred choice where extended temp or alternate vendor sourcing is not required.
Availability
74ACT10SCX is available at Aetrix Electronics and suitable for address decoding, bus interface control, and digital power sequencing requiring stable component supply, consistent SOIC-14 packaging, and industrial-temperature reliability.
Supply support for 74ACT10SCX 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 analog and discrete semiconductor manufacturer, acquired by ON Semiconductor in 2016; its legacy logic portfolio remains widely deployed and supported.
The 74ACT10SCX belongs to the ACT-series advanced CMOS logic family, designed specifically for high-speed, low-power 5V digital systems requiring TTL compatibility and robust noise immunity.
FAQ
What logic family does the 74ACT10SCX belong to, and how does it differ from 74AC10?
The 74ACT10SCX belongs to the Advanced CMOS Technology (ACT) logic family. Unlike the 74AC10, which operates from 2.0V to 6.0V and has CMOS-compatible inputs, the 74ACT10SCX uses TTL-compatible input thresholds (VIH = 2.0V min, VIL = 0.8V max) and is specified only for 4.5V–5.5V operation. This makes the 74ACT10SCX ideal for mixed-logic systems interfacing with legacy TTL, while the 74AC10 targets broader voltage flexibility. Both share the same triple 3-input NAND function and SOIC-14 packaging.
Is the 74ACT10SCX pin-compatible with other 74-series triple NANDs like 74LS10 or 74HC10?
The 74ACT10SCX is pin-compatible with 74LS10 and 74HC10 in the standard 14-pin SOIC (M14A) package - Pin 1–3, 4–6, 8–11 map identically for inputs and outputs. However, electrical compatibility requires verification: 74ACT10SCX sources/sinks ±24mA and accepts TTL-level inputs, whereas 74LS10 draws higher ICC and 74HC10 uses CMOS thresholds. Direct substitution is viable only if voltage levels, fan-out, and timing margins align in the target circuit.
What is the maximum capacitive load the 74ACT10SCX can drive while maintaining specified propagation delay?
The 74ACT10SCX AC specifications are characterized at CL = 50pF, where tPLH/tPHL is guaranteed ≤10.0ns over temperature. Driving loads beyond 50pF increases delay nonlinearly - e.g., at 100pF, typical delay rises to ~13ns. For reliable timing, keep total net capacitance (including trace, stubs, and input pins) ≤50pF, or add series termination if driving longer traces. The 74ACT10SCX's ±24mA drive helps mitigate rise/fall time degradation, but propagation delay remains load-dependent.
Does the 74ACT10SCX support hot-swap or live-insertion in backplane applications?
No, the 74ACT10SCX does not support hot-swap operation. Its absolute maximum ratings specify that VCC must be established before applying input signals, and simultaneous application of inputs and VCC may cause latch-up or excessive ICC. The device lacks bus-hold, power-up reset, or Ioff protection. For backplane applications requiring live insertion, dedicated hot-swap controllers or buffers with Ioff and power-off protection (e.g., SN74AVC series) must be used upstream of the 74ACT10SCX.
Where can I find the land pattern and solder paste stencil recommendations for the 74ACT10SCX SOIC package?
The 74ACT10SCX uses the JEDEC MS-012 SOIC-14 package (M14A), with land pattern recommendation SOIC127P600X145-14M. Fairchild's official drawing M14AREV13 specifies 0.65mm lead pitch, 1.27mm body width, and gull-wing lead geometry. Recommended stencil aperture is 0.5mm × 1.5mm per pad, with 5–7µm nickel-plated stainless steel and 50% area reduction for Type 3 solder paste. Full mechanical drawings and IPC-compliant footprints are available at onsemi.com/package-drawings (Fairchild legacy documentation archive).
74ACT10SCX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ACT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
74ACT10SCX FAQ
1.How can I place an order for 74ACT10SCX through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ACT10SCX 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 74ACT10SCX reliable?
The price and inventory of 74ACT10SCX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT10SCX is usually 5 days.
3.What payment methods are accepted for 74ACT10SCX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT10SCX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ACT10SCX?
74ACT10SCX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ACT10SCX 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 74ACT10SCX?
For technical support, including 74ACT10SCX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT10SCX requirements.
6.How does Aetrix verify that 74ACT10SCX is sourced from the original manufacturer or authorized distributors?
All 74ACT10SCX 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 74ACT10SCX meets industry standards.
7.What is the process for return or replacement of 74ACT10SCX?
All 74ACT10SCX units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT10SCX, 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 74ACT10SCX part is unused and in its original packaging.
Return procedure for 74ACT10SCX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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