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onsemi DM74ALS11AM
- Part No.:
- DM74ALS11AM
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DM74ALS11AM.pdf
- Description:
- IC GATE AND 3CH 3-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,567
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Product details
Overview
DM74ALS11AM from Fairchild Semiconductor is a triple 3-input AND gate IC in 14-lead SOIC (M14A) package, operating at VCC = 4.5–5.5 V, with propagation delays as low as 2 ns (tPLH/tPHL), IOL = 8 mA sink capability, and guaranteed performance over 0°C to +70°C for digital logic control in industrial timing and signal gating applications.
For engineers reviewing the DM74ALS11AM datasheet, pinout, applications, or equivalent options, this page delivers verified logic function, SOIC package mapping, absolute maximum ratings, switching characteristics, and functional alternatives for legacy TTL system upgrades and board-level compatibility validation.
Technical Context
The DM74ALS11AM implements three independent AND gates with true TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2.0 V) and output drive levels meeting ALS family specifications. It uses oxide-isolated, ion-implanted Schottky TTL process for improved AC performance versus standard Schottky and LS-TTL counterparts.
Each gate accepts three inputs (A, B, C) and produces Y = A·B·C output with rail-to-rail logic swing. The device operates strictly within 4.5–5.5 V supply range and supports load capacitance up to 50 pF per output, with guaranteed timing across full temperature and voltage ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL systems and tolerance against supply ripple. |
| tPLH / tPHL | 2 ns (min) to 13 ns (max) - enables high-speed combinational logic in clocked state machines and address decoding. |
| IOL / IOH | 8 mA sink / −0.4 mA source - drives standard TTL loads without external buffers in mixed-logic interfacing. |
| VIL / VIH | 0.8 V / 2.0 V - provides noise margin >0.4 V under worst-case conditions for reliable logic level discrimination. |
| Operating Temp | 0°C to +70°C - qualified for commercial-grade embedded control, instrumentation, and industrial logic panels. |
| Input Clamp Voltage | −1.5 V - protects inputs from negative transients during hot insertion or ESD events. |
Pinout & Package
DM74ALS11AM is housed in a 14-lead Small Outline Integrated Circuit (SOIC) package, JEDEC MS-012, 0.150 inch narrow body (Package Number M14A), with standard pin spacing of 0.050 inch and thermal resistance θJA = 116.0°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Gate 1 Inputs (A1, B1, C1) | Three independent logic inputs for first AND gate; compatible with standard TTL fan-out. |
| 4 | Gate 1 Output (Y1) | Active HIGH open-collector compatible output; sinks up to 8 mA at VOL ≤ 0.5 V. |
| 5, 6, 13 | Gate 2 Inputs (A2, B2, C2) | Inputs for second AND gate; electrically isolated from other gates with no internal coupling. |
| 12 | Gate 2 Output (Y2) | Dedicated output with identical DC/AC specs as Y1; supports parallel load sharing. |
| 10, 9, 8 | Gate 3 Inputs (A3, B3, C3) | Third set of inputs; arranged to minimize PCB trace crosstalk in dense layouts. |
| 7 | Ground (GND) | Common reference for all inputs/outputs; must be low-impedance for stable switching. |
| 14 | Supply (VCC) | +5 V power rail; requires local 0.1 µF ceramic decoupling adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent 3-input AND logic | Enables compact implementation of multi-condition enable logic without external gating or glue logic. |
| ALS-family speed-power optimization | Delivers 2 ns minimum propagation delay with ICC < 3 mA (all outputs LOW), reducing dynamic power vs. LS-TTL. |
| Full temperature/voltage specification | Guaranteed tPLH/tPHL, VOH/VOL, and IOL/IIL across 0°C–70°C and VCC = 4.5–5.5 V - eliminates derating calculations. |
| Oxide-isolated Schottky TTL process | Provides superior noise immunity and latch-up resistance compared to bipolar-only TTL processes. |
Applications
| Industrial Control Logic | Legacy System Repair |
|---|---|
Use Scenario: Enabling motor start signals only when safety interlocks, temperature OK, and command active are all asserted. IC Role / Device Role / Timing Role: Gate-level combinational logic element performing real-time 3-input AND decision with sub-10 ns latency. Use Value: Eliminates need for discrete diode-resistor OR-AND networks, reducing board area and failure points in PLC I/O modules. | Use Scenario: Replacing obsolete 74S11 or 74LS11 in vintage test equipment where footprint and timing must match exactly. IC Role / Device Role / Timing Role: Pin-for-pin and functionally compatible drop-in replacement with improved speed and lower power than LS variants. Use Value: Restores full functionality without PCB rework, leveraging identical SOIC-14 footprint and TTL-level interface behavior. |
| Address Decoding | Digital Instrumentation |
Use Scenario: Selecting memory-mapped peripherals by AND-ing chip-select, address bits A14–A15, and read/write strobe. IC Role / Device Role / Timing Role: Combinational address decoder stage ensuring precise peripheral enable window timing. Use Value: Meets tight setup/hold timing budgets in 8-bit microcontroller systems due to guaranteed 2 ns min tPLH. | Use Scenario: Gating sensor data acquisition pulses only when calibration mode, valid sample clock, and ADC ready are simultaneously true. IC Role / Device Role / Timing Role: Synchronous enable gate synchronizing analog front-end control with digital processing clocks. Use Value: Prevents spurious sampling by enforcing strict 3-signal coincidence, improving measurement repeatability. |
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 |
|---|---|---|---|
| SN74ALS11N | Same ALS logic family, but in PDIP-14 (N14A) package; θJA = 86.5°C/W; slightly higher IIL magnitude (−0.12 mA vs −0.1 mA). | Preferred for through-hole prototyping or legacy wave-solder assembly; not suitable for surface-mount production. | Select SN74ALS11N only when manual soldering or socket-based testing is required. |
| 74F11PC | Fast TTL variant: faster tPLH/tPHL (1.5 ns typ), higher ICC (5.5 mA), wider VCC range (4.5–5.5 V), but higher IIL (−0.6 mA) and reduced noise margin. | Better suited for high-frequency clock distribution; less tolerant of marginal input noise or slow edges. | Choose 74F11PC only when sub-3 ns propagation is mandatory and power budget allows +2× ICC. |
Compared with SN74ALS11N and 74F11PC, the DM74ALS11AM offers optimal balance of speed, power, and thermal performance in surface-mount industrial logic, with proven reliability in long-lifecycle systems and direct compatibility with existing SOIC-14 footprints.
Availability
DM74ALS11AM is available at Aetrix Electronics and suitable for industrial control logic, legacy system repair, address decoding, and digital instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for DM74ALS11AM 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 U.S.-based semiconductor company specializing in analog and mixed-signal ICs, power management, and logic families before its acquisition by ON Semiconductor in 2016.
The DM74ALS11AM belongs to Fairchild's Advanced Low-Power Schottky (ALS) TTL logic series, designed for high-reliability commercial and industrial digital systems requiring improved speed and reduced power over standard LS-TTL.
FAQ
What logic family does the DM74ALS11AM belong to, and how does it differ from standard 74LS11?
The DM74ALS11AM belongs to the Advanced Low-Power Schottky (ALS) TTL family. It differs from 74LS11 by offering faster propagation delays (2 ns min vs 3 ns min), lower ICC (1.8 mA max vs 2.5 mA max), and guaranteed AC performance across full temperature and voltage ranges. The DM74ALS11AM maintains pin compatibility and identical logic function, making it a direct upgrade path for existing 74LS11 designs without layout changes.
Is the DM74ALS11AM RoHS compliant?
The DM74ALS11AM was manufactured prior to RoHS enforcement and is not RoHS compliant. It contains lead in the die attach and solder finish, consistent with pre-2006 commercial TTL packaging standards. For RoHS-compliant alternatives, engineers should evaluate modern 74AUP or 74LVC series AND gates with appropriate voltage translation and timing analysis.
What is the maximum capacitive load the DM74ALS11AM can drive reliably?
The DM74ALS11AM is characterized and guaranteed for operation with CL = 50 pF per output, as specified in its switching characteristics table. Driving loads beyond 50 pF may increase propagation delay unpredictably and risk output waveform degradation. For heavier loads, buffer stages or fanout optimization using multiple DM74ALS11AM outputs in parallel are recommended.
Can the DM74ALS11AM operate at 3.3 V supply voltage?
No, the DM74ALS11AM is not rated for 3.3 V operation. Its absolute maximum VCC is 7 V, but the recommended operating range is strictly 4.5 V to 5.5 V. At 3.3 V, input thresholds (VIH = 2.0 V) become non-functional and output drive collapses; VOH falls below TTL HIGH recognition level. Use 74LVC11 or similar 3.3 V logic for that supply domain.
Does the DM74ALS11AM have internal ESD protection diodes on its inputs?
Yes, the DM74ALS11AM includes internal input clamp diodes, evidenced by the VIK parameter (−1.5 V at II = −18 mA). These diodes provide limited transient protection against negative input excursions but are not rated for system-level ESD events per IEC 61000-4-2. External TVS or series resistors are recommended for robust board-level ESD hardening.
DM74ALS11AM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ALS
- 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):
- -
- Current - Output High, Low:
- 400µA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 13ns @ 5V, 50pF
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
DM74ALS11AM FAQ
1.How can I place an order for DM74ALS11AM through Aetrix?
Please submit a Request for Quotation (RFQ) for DM74ALS11AM 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 DM74ALS11AM reliable?
The price and inventory of DM74ALS11AM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM74ALS11AM is usually 5 days.
3.What payment methods are accepted for DM74ALS11AM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM74ALS11AM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM74ALS11AM?
DM74ALS11AM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM74ALS11AM 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 DM74ALS11AM?
For technical support, including DM74ALS11AM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM74ALS11AM requirements.
6.How does Aetrix verify that DM74ALS11AM is sourced from the original manufacturer or authorized distributors?
All DM74ALS11AM 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 DM74ALS11AM meets industry standards.
7.What is the process for return or replacement of DM74ALS11AM?
All DM74ALS11AM units undergo pre-shipment inspection (PSI). If there is an issue with DM74ALS11AM, 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 DM74ALS11AM part is unused and in its original packaging.
Return procedure for DM74ALS11AM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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