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onsemi DM74ALS86M
- Part No.:
- DM74ALS86M
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DM74ALS86M.pdf
- Description:
- IC GATE XOR 4CH 2-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,023
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Product details
Overview
DM74ALS86M from Fairchild Semiconductor is a quad 2-input exclusive-OR gate IC in 14-lead SOIC (M14A) package, operating at VCC = 4.5–5.5 V, with propagation delays as low as 2 ns (tPHL, high-to-low), output drive of ±112 mA (IO), and guaranteed performance across 0°C to +70°C. It implements four independent XOR logic functions for digital signal comparison and parity generation in TTL-compatible systems.
For engineers reviewing the DM74ALS86M datasheet, pinout, applications, or equivalent options, key selection criteria include its ALS-family speed-power tradeoff, SOIC thermal resistance (θJA = 117.2°C/W), input clamp voltage (VIK = −1.5 V), and compatibility with legacy 74LS/74S logic families in mixed-technology designs.
Technical Context
The DM74ALS86M uses advanced oxide-isolated, ion-implanted Schottky TTL process to achieve improved AC performance over standard Schottky (74S) and low-power Schottky (74LS) counterparts. Its four XOR gates operate independently with identical electrical characteristics per channel.
Each gate implements Y = A ⊕ B = AB̅ + A̅B, with guaranteed switching specs at CL = 50 pF and RL = 500 Ω. Input thresholds are VIH ≥ 2.0 V and VIL ≤ 0.8 V, ensuring robust noise margin in 5 V TTL systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures stable operation across standard TTL supply tolerance. |
| tPHL / tPLH | 2 ns to 17 ns - Fastest path (2 ns high-to-low) supports >200 MHz toggle rates in short-load conditions. |
| IOL / IOH | 8 mA / −0.4 mA - Sinks 8 mA at VOL ≤ 0.4 V, sufficient to drive one standard TTL input or multiple CMOS loads. |
| VIH / VIL | 2.0 V / 0.8 V - Matches 74LS logic thresholds, enabling direct interface without level-shifting. |
| Operating Temp | 0°C to +70°C - Qualified for commercial-grade industrial control and instrumentation environments. |
| θJA | 117.2°C/W - SOIC thermal resistance informs derating for sustained 5.5 V operation at ambient >50°C. |
Pinout & Package
DM74ALS86M is housed in a 14-lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" narrow body (Package Number M14A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 11, 12 | Input (A/B) | Eight total inputs - two per XOR gate (A, B); all TTL-compatible with VIH/VIL thresholds. |
| 3, 6, 10, 13 | Output (Y) | Four independent XOR outputs; each capable of sinking 8 mA while maintaining VOL ≤ 0.4 V. |
| 7 | GND | Ground reference for all logic and power paths; must be low-impedance for noise immunity. |
| 14 | VCC | +5 V supply pin; requires local 0.1 µF ceramic decoupling adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| ALS process technology | Oxide-isolated, ion-implanted Schottky TTL - delivers lower power than 74S with higher speed than 74LS. |
| Pin-for-pin compatibility | Matches 74S86 and 74LS86 footprints - enables drop-in replacement in existing PCB layouts. |
| Guaranteed AC specs | Propagation delays specified over full VCC (4.5–5.5 V) and temperature (0–70°C) range - eliminates design margin uncertainty. |
| Input clamp protection | VIK = −1.5 V at II = −18 mA - protects against negative transients during hot insertion or ESD events. |
Applications
| Parity Generator/Checker | Digital Comparator |
|---|---|
Use Scenario: Generating or verifying even/odd parity bits across 4-bit data buses in UART interfaces or memory controllers. IC Role / Device Role / Timing Role: DM74ALS86M performs bitwise XOR across parallel data lines to compute parity sum with sub-10 ns latency. Use Value: Enables real-time error detection without external microcontroller intervention; supports synchronous 20+ MHz bus clocking. | Use Scenario: Detecting equality between two 2-bit binary words in microprocessor address decoding or state-machine transition logic. IC Role / Device Role / Timing Role: DM74ALS86M acts as bit-wise comparator core - outputs HIGH only when corresponding bits differ, then NAND-combined for match detection. Use Value: Reduces gate count vs. discrete AND/OR implementations; maintains deterministic 2–12 ns response across temperature and supply variation. |
| Controlled Inverter | Phase Detection |
Use Scenario: Selectively inverting one of two digital signals based on a control line in test equipment waveform routing. IC Role / Device Role / Timing Role: DM74ALS86M configured as programmable inverter - control line drives one input, data drives the other, output = control ⊕ data. Use Value: Eliminates need for analog switches or multiplexers; preserves TTL edge integrity with no added propagation skew. | Use Scenario: Detecting relative phase alignment between two square-wave clocks in PLL lock monitoring or motor commutation feedback. IC Role / Device Role / Timing Role: DM74ALS86M compares rising edges of two clock signals; output pulse width indicates phase difference. Use Value: Provides zero-crossing detection resolution down to 2 ns, supporting sub-degree timing accuracy in closed-loop systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar XOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALS86N | Same ALS logic family, but in PDIP (N14A) package - θJA = 87.0°C/W, larger footprint, through-hole mount. | Preferred for prototyping, manual assembly, or legacy through-hole boards where SOIC reflow is unavailable. | Select SN74ALS86N when board assembly process mandates DIP or thermal budget requires lower junction-to-air resistance. |
| 74HC86 | CMOS-based, 2–6 V VCC range, higher noise immunity (VNH ≈ 1.5 V), but slower tPD (max 19 ns at 4.5 V) and non-TTL input thresholds. | Suitable for battery-powered or mixed-voltage systems, but requires level translation when interfacing with 5 V TTL. | Choose 74HC86 only if supply flexibility or static power reduction outweighs need for native TTL compatibility and speed. |
Compared with SN74ALS86N and 74HC86, the DM74ALS86M uniquely balances SOIC space efficiency, TTL-native speed (2 ns min tPHL), and guaranteed commercial-temperature operation - making it optimal for high-density, cost-sensitive 5 V digital control boards requiring legacy logic interoperability.
Availability
DM74ALS86M is available at Aetrix Electronics and suitable for industrial control panels, test instrumentation, and legacy system upgrades requiring stable component supply and long-term obsolescence management.
Supply support for DM74ALS86M 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 designer and manufacturer of analog and mixed-signal semiconductors, acquired by ON Semiconductor in 2016; known for industry-standard TTL, MOS, and power IC families.
The DM74ALS86M belongs to Fairchild's Advanced Low-Power Schottky (ALS) logic series, engineered to replace 74S and 74LS devices in speed-critical, power-constrained 5 V digital systems.
FAQ
What logic family does the DM74ALS86M belong to, and how does it compare to standard TTL?
The DM74ALS86M belongs to the Advanced Low-Power Schottky (ALS) TTL family. It improves upon standard 74LS logic with faster propagation delays (as low as 2 ns) and lower power consumption than 74S, while maintaining full pin and functional compatibility with both 74LS86 and 74S86. The DM74ALS86M retains TTL input thresholds and output drive capability, ensuring seamless integration into existing 5 V TTL designs without redesign.
Is the DM74ALS86M pin-compatible with the 74LS86 and 74S86?
Yes, the DM74ALS86M is functionally and pin-for-pin compatible with both the 74LS86 and 74S86. Its pinout matches the standard 14-lead dual-in-line and SOIC configurations for quad XOR gates, including identical input (pins 1,2,4,5,8,9,11,12), output (pins 3,6,10,13), VCC (pin 14), and GND (pin 7) assignments. This allows direct substitution in legacy layouts without PCB modification.
What are the absolute maximum ratings for the DM74ALS86M?
The DM74ALS86M has an absolute maximum supply voltage of 7 V, input voltage limit of 7 V, operating free-air temperature range of 0°C to +70°C, and storage temperature range of −65°C to +150°C. Exceeding these values may cause permanent damage. For reliable operation, use within recommended conditions: VCC = 4.5–5.5 V and TA = 0–70°C, as specified in the DM74ALS86M datasheet.
Does the DM74ALS86M support mixed-voltage interfacing, such as with 3.3 V logic?
No, the DM74ALS86M is designed exclusively for 5 V TTL systems and does not support direct interfacing with 3.3 V logic. Its input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and output levels (VOH ≈ VCC − 2 V, VOL ≤ 0.4 V) are optimized for 5 V operation. Interfacing with 3.3 V devices requires level-shifting circuitry; using the DM74ALS86M in non-5 V applications risks incorrect logic states or device stress.
What is the thermal performance of the DM74ALS86M in its SOIC package?
The DM74ALS86M in the M14A SOIC package has a typical junction-to-air thermal resistance (θJA) of 117.2°C/W. This value assumes standard JEDEC test conditions (single-layer board, 1 in² copper). At maximum rated supply (5.5 V) and full output loading, thermal design must ensure junction temperature remains below 150°C - typically limiting continuous power dissipation to ~300 mW in still air without heatsinking.
DM74ALS86M 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:
- XOR (Exclusive OR)
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- 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:
- 17ns @ 5V, 50pF
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
DM74ALS86M FAQ
1.How can I place an order for DM74ALS86M through Aetrix?
Please submit a Request for Quotation (RFQ) for DM74ALS86M 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 DM74ALS86M reliable?
The price and inventory of DM74ALS86M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM74ALS86M is usually 5 days.
3.What payment methods are accepted for DM74ALS86M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM74ALS86M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM74ALS86M?
DM74ALS86M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM74ALS86M 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 DM74ALS86M?
For technical support, including DM74ALS86M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM74ALS86M requirements.
6.How does Aetrix verify that DM74ALS86M is sourced from the original manufacturer or authorized distributors?
All DM74ALS86M 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 DM74ALS86M meets industry standards.
7.What is the process for return or replacement of DM74ALS86M?
All DM74ALS86M units undergo pre-shipment inspection (PSI). If there is an issue with DM74ALS86M, 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 DM74ALS86M part is unused and in its original packaging.
Return procedure for DM74ALS86M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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