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onsemi DM74AS00MX
- Part No.:
- DM74AS00MX
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DM74AS00MX.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,269
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Product details
Overview
DM74AS00MX from Fairchild Semiconductor is a quad 2-input NAND gate IC built using advanced oxide-isolated, ion-implanted Schottky TTL process, with propagation delays as low as 1 ns (tPLH/tPHL), output drive capability of −112 mA (IO), and guaranteed operation across 0°C to +70°C at VCC = 4.5–5.5 V. It serves as a high-speed combinational logic element in digital control and interface circuits.
For engineers reviewing the DM74AS00MX datasheet, pinout, applications, or equivalent options, key selection considerations include its 14-pin SOIC package, 50 pF load switching performance, TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2.0 V), and compatibility with legacy Schottky and ALS TTL families.
Technical Context
The DM74AS00MX implements four independent 2-input NAND gates in a single monolithic IC, each with identical electrical behavior and no internal interconnect dependencies. Its logic function Y = AB is strictly combinatorial, with no latching, clocking, or enable control.
Designed for TTL-level system interfacing, it operates within standard 5 V supply rails and delivers asymmetric output drive: −2 mA sourcing (IOH) and +20 mA sinking (IOL) per gate, supporting direct fanout to multiple standard TTL inputs without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - ensures stable operation across industrial-grade 5 V rail tolerances |
| tPLH / tPHL | 1 ns (min) to 4.5 ns (max) - enables sub-5 ns critical path timing in synchronous logic |
| IOL / IOH | 20 mA sink / −2 mA source - supports direct driving of up to 10 standard TTL loads per output |
| VIL / VIH | 0.8 V / 2.0 V - guarantees noise margins >0.4 V under worst-case VCC and temperature |
| ICC (Outputs HIGH) | 2.2–3.2 mA - defines quiescent power per gate at logic HIGH output state |
| Operating Temp | 0°C to +70°C - validated for commercial-temperature PCB environments |
Pinout & Package
DM74AS00MX is supplied in a 14-lead Small Outline Integrated Circuit (SOIC) package, JEDEC MS-012 compliant, 0.150" narrow body, with gull-wing leads and thermal resistance θJA = 114.0°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 11, 12 | Input A/B of NAND gates | Two dedicated inputs per gate; all inputs TTL-compatible with clamp diodes |
| 3, 6, 10, 13 | Output Y of NAND gates | Active-low open-collector capable outputs; each drives 20 mA sink current |
| 7 | GND | Logic ground reference for all gates and internal bias networks |
| 14 | VCC | Positive supply terminal; decoupling required within 1 cm for stable AC performance |
Key Features
| Feature | Design Value |
|---|---|
| Process Technology | Oxide-isolated, ion-implanted Schottky TTL - delivers higher speed and lower power than standard Schottky TTL |
| AC Performance Guarantee | Specified at CL = 50 pF across full VCC (4.5–5.5 V) and temperature (0–70°C) - eliminates derating in production designs |
| Pin Compatibility | Functionally and pin-for-pin compatible with 74S00, 74LS00, and 74ALS00 - enables drop-in replacement in legacy boards |
| Input Clamp Protection | VIK = −1.2 V at II = −18 mA - prevents latch-up during transient overvoltage on inputs |
Applications
| Industrial Control Logic | Digital Instrumentation |
|---|---|
Use Scenario: Discrete logic implementation in PLC I/O modules requiring fast response to sensor inputs and deterministic gate propagation. IC Role / Device Role / Timing Role: NAND gate used for signal inversion, enable gating, and basic combinational decoding in real-time control paths. Use Value: 1 ns minimum propagation delay ensures sub-microsecond decision latency in safety-critical sequencing. | Use Scenario: Front-panel button debouncing and display multiplexing in benchtop test equipment with mixed TTL/CMOS logic domains. IC Role / Device Role / Timing Role: Level-shifting and noise-immune logic conditioning between mechanical switches and microcontroller GPIOs. Use Value: Guaranteed 0.8 V/2.0 V input thresholds provide >400 mV noise margin against EMI in lab environments. |
| Legacy System Repair | Education & Lab Training |
Use Scenario: Replacement of obsolete 74S00 or 74LS00 in field-deployed telecom line cards where board rework is prohibited. IC Role / Device Role / Timing Role: Direct pin-compatible logic gate substitution preserving original timing and loading behavior. Use Value: Identical pinout and TTL-compatible drive strength eliminate PCB modification and revalidation effort. | Use Scenario: Hands-on digital logic labs teaching Boolean algebra, truth tables, and propagation delay measurement techniques. IC Role / Device Role / Timing Role: Physical demonstration device for NAND functionality, fanout limits, and static/dynamic logic behavior. Use Value: Measurable tPLH/tPHL and visible IOL/IOH drive capability support quantitative lab experiments with oscilloscopes and logic analyzers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AS00DR | Same AS-family architecture, identical AC/DC specs, but TI-manufactured with different process control and screening. | No functional difference; qualified for same commercial temp range and 5 V operation. | Preferred for new designs requiring TI's long-term supply commitment and enhanced traceability. |
| 74F00PC | Fast TTL variant with faster tPLH/tPHL (typ. 2.5 ns), higher ICC (15 mA), and tighter VIL/VIH thresholds (0.8 V/2.0 V same). | Better suited for high-frequency clock distribution; less tolerant of marginal VCC or elevated temperature. | Select when propagation delay <3 ns is mandatory and power budget allows +50% ICC increase. |
Compared with SN74AS00DR and 74F00PC, the DM74AS00MX offers identical pinout and logic behavior with optimized cost and legacy footprint compatibility, making it ideal for repair, second-source assurance, and cost-sensitive commercial systems where 4.5–5.5 V operation and 0–70°C range are sufficient.
Availability
DM74AS00MX is available at Aetrix Electronics and suitable for industrial control logic, digital instrumentation, legacy system repair, and educational lab training requiring stable component supply and long-term obsolescence mitigation.
Supply support for DM74AS00MX 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 TTL logic portfolio remains widely deployed and supported.
The DM74AS00MX belongs to Fairchild's advanced Schottky TTL logic family, engineered for high-speed commercial digital systems requiring reliable, pin-compatible upgrades to earlier S/LS/ALS families.
FAQ
What logic function does the DM74AS00MX implement?
The DM74AS00MX implements four independent 2-input NAND gates, each performing the Boolean function Y = AB. Its truth table specifies HIGH output for any input combination except when both inputs are HIGH, yielding LOW. This behavior is verified across the full operating temperature and voltage range, and is consistent across all four gates on the DM74AS00MX die.
Is the DM74AS00MX pin-compatible with older TTL NAND gate variants?
Yes, the DM74AS00MX is functionally and pin-for-pin compatible with 74S00, 74LS00, and 74ALS00 devices. Its 14-pin SOIC footprint matches the M14A package, and all input/output assignments align exactly - enabling direct replacement in existing layouts without PCB changes. This compatibility is explicitly confirmed in Fairchild's DS006105 datasheet.
What is the maximum capacitive load the DM74AS00MX can drive while maintaining specified propagation delay?
The DM74AS00MX switching characteristics are guaranteed at CL = 50 pF, with tPLH/tPHL specified from 1 ns to 4.5 ns under those conditions. Driving loads significantly above 50 pF will increase propagation delay nonlinearly and may degrade noise margins. For reliable timing closure, keep total node capacitance ≤50 pF per output, including trace, probe, and fanout contributions - as validated in the DM74AS00MX datasheet's Switching Characteristics table.
Does the DM74AS00MX support operation at VCC = 4.5 V?
Yes, the DM74AS00MX is fully specified and guaranteed to operate at VCC = 4.5 V, the minimum recommended supply voltage. All DC parameters - including VOH, VOL, VIH, VIL, and IOL - and AC parameters - including tPLH and tPHL - are characterized across 4.5 V to 5.5 V. This makes the DM74AS00MX suitable for systems with nominal 5 V rails experiencing brownout or regulation tolerance.
What is the thermal resistance (θJA) of the DM74AS00MX package?
For the DM74AS00MX in its 14-lead SOIC (M14A) package, the junction-to-ambient thermal resistance θJA is 114.0°C/W, as measured under standard JEDEC test conditions. This value assumes a two-layer PCB with minimal copper pour; actual thermal performance improves with added copper area or thermal vias. The DM74AS00MX's typical ICC (outputs HIGH) is 2.2–3.2 mA, limiting self-heating in most applications.
DM74AS00MX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74AS
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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):
- -
- Current - Output High, Low:
- 2mA, 20mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 4.5ns @ 5V, 50pF
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
DM74AS00MX FAQ
1.How can I place an order for DM74AS00MX through Aetrix?
Please submit a Request for Quotation (RFQ) for DM74AS00MX 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 DM74AS00MX reliable?
The price and inventory of DM74AS00MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM74AS00MX is usually 5 days.
3.What payment methods are accepted for DM74AS00MX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM74AS00MX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM74AS00MX?
DM74AS00MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM74AS00MX 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 DM74AS00MX?
For technical support, including DM74AS00MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM74AS00MX requirements.
6.How does Aetrix verify that DM74AS00MX is sourced from the original manufacturer or authorized distributors?
All DM74AS00MX 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 DM74AS00MX meets industry standards.
7.What is the process for return or replacement of DM74AS00MX?
All DM74AS00MX units undergo pre-shipment inspection (PSI). If there is an issue with DM74AS00MX, 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 DM74AS00MX part is unused and in its original packaging.
Return procedure for DM74AS00MX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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