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onsemi SN74LS05ML1
- Part No.:
- SN74LS05ML1
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
SN74LS05ML1.pdf
- Description:
- IC INVERTER 14PDSO
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
SN74LS05ML1 from ON Semiconductor is a hex inverter with open-collector outputs, designed for level-shifting and wired-AND logic interfacing in TTL-compatible systems. It operates at 4.75–5.25 V, delivers 8 mA sink current per output, and exhibits 15–28 ns propagation delay (tPHL) at 25°C with 15 pF load. It is used in bus interface circuits, LED drivers, and discrete logic glue applications.
For engineers reviewing the SN74LS05ML1 datasheet, pinout, applications, or equivalent options, key selection criteria include open-collector drive capability, guaranteed 0.4 V VOL at 4 mA, input voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), and SOEIAJ-14 package compatibility with industrial temperature range (0°C to +70°C).
Technical Context
The SN74LS05ML1 implements six independent inverting buffers using low-power Schottky (LS) TTL technology. Each output lacks an internal pull-up, requiring external termination to define HIGH state - enabling wired-AND operation and voltage-level translation across different logic families.
It guarantees VIH ≥ 2.0 V and VIL ≤ 0.8 V over full temperature range, supports IOL = 8.0 mA per channel with VOL ≤ 0.5 V, and maintains tPLH/tPHL ≤ 32 ns/28 ns respectively under standard test conditions (VCC = 5.0 V, CL = 15 pF, RL = 2.0 kΩ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.75 V to 5.25 V - ensures stable operation within standard TTL supply tolerance |
| IOH / IOL | ±100 µA / 8.0 mA - defines maximum sourcing/sinking capability per open-collector output |
| VOL @ IOL=4 mA | ≤ 0.4 V - guarantees reliable LOW-level recognition by downstream TTL inputs |
| tPHL / tPLH | 15–28 ns / 17–32 ns - determines maximum operating frequency in combinational logic paths |
| VIH / VIL | ≥ 2.0 V / ≤ 0.8 V - ensures noise-immune switching thresholds compatible with LS-TTL and standard TTL |
| Operating Temp | 0°C to +70°C - qualifies for commercial and industrial ambient environments without derating |
| ICC (HIGH) | 2.4 mA - total quiescent supply current when all outputs are HIGH (open) |
Pinout & Package
SN74LS05ML1 is housed in a 14-pin SOEIAJ (Small Outline EIAJ) plastic package (Case 965), surface-mount compatible with gull-wing leads and 1.27 mm pitch. The package meets JEDEC MO-095 standards and is rated for reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Inverter Input | Accepts TTL-compatible digital signals; VIH ≥ 2.0 V, VIL ≤ 0.8 V |
| 2, 4, 6, 8, 10, 12 | Open-Collector Output | Sinks current only; requires external pull-up for HIGH logic level |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry |
| 14 | VCC | +5 V supply rail; must be decoupled locally to suppress switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Open-collector outputs | Enables wired-AND logic, level translation, and direct LED/driver interfacing without additional transistors |
| Low-power Schottky (LS) process | Reduces power consumption vs. standard TTL while maintaining speed (6.6 mA ICC at output LOW) |
| Guaranteed VIH/VIL margins | Ensures robust noise immunity and interoperability with 74LS, 74S, and legacy TTL families |
| Industrial temperature range | Validated operation from 0°C to +70°C supports embedded control and instrumentation designs |
Applications
| Bus Interface Logic | LED Driver Interface |
|---|---|
Use Scenario: Driving shared data/address buses where multiple devices must assert LOW without contention. IC Role / Device Role / Timing Role: Hex inverter provides isolated, open-collector bus drivers with controlled VOL and fast turn-off delay. Use Value: Enables reliable wired-AND arbitration and eliminates bus contention risks in multi-master systems. | Use Scenario: Directly sinking current from microcontroller GPIO pins to drive indicator LEDs. IC Role / Device Role / Timing Role: Level-shifting inverter buffer that translates 3.3 V logic to 5 V-compatible LED drive with 8 mA per channel. Use Value: Eliminates need for discrete transistor stages; simplifies layout and reduces BOM count. |
| Discrete Logic Glue | TTL-to-Relay Interface |
Use Scenario: Interfacing mismatched logic families (e.g., CMOS outputs to TTL inputs) with polarity inversion. IC Role / Device Role / Timing Role: Signal conditioning inverter with precise VIH/VIL thresholds and minimal propagation skew. Use Value: Provides deterministic timing and noise margin compliance in mixed-technology subsystems. | Use Scenario: Driving relay coils requiring 5 V, ~10 mA activation current via microcontroller outputs. IC Role / Device Role / Timing Role: High-current open-collector switch replacing discrete NPN transistors. Use Value: Reduces component count and improves reliability versus single-transistor solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LS04N | Push-pull (totem-pole) outputs; no external pull-up required; slightly higher ICC (8 mA typical) | Not suitable for wired-AND or level translation; limited to standard logic buffering | Select SN74LS04N only when active HIGH drive and minimal external components are prioritized |
| SN74HC05N | CMOS technology; wider VCC range (2–6 V); lower IOL (4 mA); higher noise immunity; no TTL input compatibility guarantee | Requires careful input voltage alignment; unsuitable for legacy TTL bus interfaces | Choose SN74HC05N for battery-powered or mixed-voltage systems where power efficiency outweighs TTL interoperability |
Compared with SN74LS05ML1, SN74LS04N offers simpler board routing but forfeits wired-AND capability, while SN74HC05N enables voltage flexibility and lower power at the cost of guaranteed TTL input compatibility and reduced sink strength.
Availability
SN74LS05ML1 is available at Aetrix Electronics and suitable for industrial control panels, legacy system upgrades, and embedded instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for SN74LS05ML1 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
ON Semiconductor (formerly part of Motorola) is a global supplier of high-performance silicon solutions for automotive, industrial, cloud computing, and IoT applications.
The SN74LS05ML1 belongs to the legacy 74LS logic family, engineered for backward compatibility with TTL-based systems while delivering improved speed-power trade-offs over earlier 74-series variants.
FAQ
What is the maximum output sink current specification for SN74LS05ML1?
The SN74LS05ML1 is specified for a minimum output sink current (IOL) of 8.0 mA per channel, tested at VOL ≤ 0.5 V with VIN at VIL or VIH. This rating applies across the full operating temperature range (0°C to +70°C) and ensures reliable driving of standard TTL loads and small-signal relays or LEDs without external amplification.
Does SN74LS05ML1 have push-pull or open-collector outputs?
SN74LS05ML1 features open-collector outputs exclusively - confirmed by the "*OPEN COLLECTOR OUTPUTS" marking on the datasheet front page and electrical specifications requiring external pull-up resistors. This architecture enables wired-AND logic, level translation, and direct interface to higher-voltage peripherals, distinguishing it from push-pull variants like SN74LS04.
What package type is used for SN74LS05ML1?
SN74LS05ML1 uses the SOEIAJ-14 surface-mount package (Case 965), a gull-wing leaded variant compliant with EIAJ standards. Its dimensions are 8.55–8.75 mm × 3.80–4.00 mm × 1.35–1.75 mm, with 1.27 mm lead pitch and JEDEC MO-095 footprint compatibility.
Can SN74LS05ML1 operate with a 3.3 V supply?
No - SN74LS05ML1 is not rated for 3.3 V operation. Its guaranteed operating VCC range is strictly 4.75 V to 5.25 V, as defined in the "GUARANTEED OPERATING RANGES" table. Applying 3.3 V may result in undefined logic states, excessive propagation delay, or failure to meet VOL/VOL specifications.
What is the propagation delay of SN74LS05ML1 at 25°C?
At TA = 25°C, VCC = 5.0 V, CL = 15 pF, and RL = 2.0 kΩ, SN74LS05ML1 exhibits tPHL (turn-on delay) of 15–28 ns and tPLH (turn-off delay) of 17–32 ns. These values represent worst-case min/max limits under standardized AC test conditions and are critical for timing budgeting in synchronous logic designs.
SN74LS05ML1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SN74LS05ML1 FAQ
1.How can I place an order for SN74LS05ML1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LS05ML1 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 SN74LS05ML1 reliable?
The price and inventory of SN74LS05ML1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LS05ML1 is usually 5 days.
3.What payment methods are accepted for SN74LS05ML1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LS05ML1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LS05ML1?
SN74LS05ML1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LS05ML1 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 SN74LS05ML1?
For technical support, including SN74LS05ML1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LS05ML1 requirements.
6.How does Aetrix verify that SN74LS05ML1 is sourced from the original manufacturer or authorized distributors?
All SN74LS05ML1 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 SN74LS05ML1 meets industry standards.
7.What is the process for return or replacement of SN74LS05ML1?
All SN74LS05ML1 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LS05ML1, 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 SN74LS05ML1 part is unused and in its original packaging.
Return procedure for SN74LS05ML1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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