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Texas Instruments SN74ALS11ANSR
- Part No.:
- SN74ALS11ANSR
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SN74ALS11ANSR.pdf
- Description:
- IC GATE AND 3CH 3-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,879
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Product details
Overview
SN74ALS11ANSR from Texas Instruments is a triple 3-input positive-AND gate IC operating at 4.5 V to 5.5 V, delivering max propagation delay of 13 ns (tPHL) and 14 ns (tPLH) at 5 V with 50 pF load, and supporting industrial temperature range (0°C to 70°C) in SOP-14 package. It performs Y = A • B • C logic per gate and is used in digital control logic, address decoding, and bus gating circuits.
For engineers reviewing the SN74ALS11ANSR datasheet, SN74ALS11ANSR pinout, SN74ALS11ANSR application, or SN74ALS11ANSR equivalent, key selection criteria include propagation delay budget, TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V), output drive capability (IOL = 4 mA / 8 mA), thermal impedance (θJA = 76°C/W), and SOP-14 reflow compatibility (MSL Level-1).
Technical Context
This device implements three independent, non-inverting AND gates using Advanced Low-Power Schottky (ALS) bipolar technology. Each gate accepts three inputs and produces one active-high output, with no internal 3-state or open-collector functionality.
It operates strictly in positive logic, requires all unused inputs tied to VCC or GND per TI SCBA004 guidance, and exhibits asymmetric switching characteristics: tPHL (2–10 ns) is consistently faster than tPLH (2–13 ns) across temperature and voltage.
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 tolerates supply ripple up to ±0.5 V. |
| Max Propagation Delay | 13 ns (tPHL), 14 ns (tPLH) at VCC = 5 V, CL = 50 pF - Defines worst-case timing margin for synchronous 70 MHz–80 MHz logic interfacing. |
| Input Thresholds | VIH = 2.0 V (min), VIL = 0.8 V (max) - Guarantees noise immunity ≥0.4 V under industrial conditions and interoperability with legacy TTL outputs. |
| Output Drive | IOL = 4 mA (min) at VOL ≤ 0.4 V; IOL = 8 mA (min) at VOL ≤ 0.5 V - Supports fan-out of ≥10 standard TTL loads at full speed. |
| Supply Current | ICCL = 3 mA (max), ICCH = 1.8 mA (max) at VCC = 5.5 V - Enables low static power in battery-backed or thermally constrained logic subsystems. |
| Thermal Impedance | θJA = 76°C/W (NS package) - Determines maximum allowable power dissipation (≤167 mW) before junction exceeds 125°C at 70°C ambient. |
Pinout & Package
SOP-14 (NS) package: 14-pin small-outline plastic package, 1.27 mm pitch, 8.75 mm × 3.9 mm body, 1.75 mm max height, MSL Level-1, lead-free (NIPDAU) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 1B, 1C | Gate 1 inputs | Three independent logic inputs for first AND gate; all must be high for 1Y assertion. |
| 1Y | Gate 1 output | Active-high TTL-compatible output; sinks up to 8 mA or sources –0.4 mA. |
| 2A, 2B, 2C | Gate 2 inputs | Three independent logic inputs for second AND gate; electrically isolated from Gate 1. |
| 2Y | Gate 2 output | Active-high output with identical DC/AC specs as 1Y; no internal load sharing. |
| 3A, 3B, 3C | Gate 3 inputs | Three independent logic inputs for third AND gate; fully decoupled from other gates. |
| 3Y | Gate 3 output | Active-high output matching 1Y/2Y performance; enables parallel logic expansion without buffering. |
| 7 | GND | Ground reference for all internal circuitry; must be low-impedance connection to minimize ground bounce. |
| 14 | VCC | +5 V supply rail; requires local 0.1 µF ceramic decoupling within 10 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Triple 3-input AND function | Three independent gates on single SOP-14 die reduce board space vs. discrete gate arrays and eliminate inter-gate skew. |
| ALS process technology | Combines Schottky-clamped transistors with low-power design to achieve 13 ns delay at 3 mA ICC, outperforming standard LS TTL. |
| TTL-compatible interface | Direct replacement for SN74LS11 with improved speed and lower ICC, requiring no level-shifting in mixed-logic systems. |
| Industrial temperature range | Validated operation from 0°C to 70°C ensures reliability in commercial embedded controllers, instrumentation, and industrial PLC I/O modules. |
| SOP-14 tape-and-reel packaging | 2000-unit reels with Q1 pin-1 quadrant orientation support automated SMT placement and IPC-7351-compliant land patterns. |
Applications
| Industrial Control Logic | Digital Address Decoding |
|---|---|
|
Use Scenario: Enabling peripheral select lines in programmable logic controllers where three enable conditions must simultaneously assert. IC Role / Device Role / Timing Role: Performs combinational gating of RUN, ENABLE, and VALID signals to generate chip-select strobes for ADC or DAC interfaces. Use Value: 13 ns propagation delay ensures setup/hold compliance with 20 MHz microcontroller address latching, eliminating external timing buffers. |
Use Scenario: Generating memory-mapped I/O address windows in 8-bit microprocessor systems (e.g., Z80, 8085). IC Role / Device Role / Timing Role: Combines upper address bits (A13–A15) and control signals (IORQ, RD) to activate specific peripheral registers. Use Value: TTL-compatible VIH/VIL thresholds ensure robust recognition of marginal address transitions, reducing false decode events. |
| Bus Arbitration Logic | Power-On Reset Sequencing |
|
Use Scenario: Validating concurrent bus grant, data-ready, and clock-stable conditions before releasing a shared data bus. IC Role / Device Role / Timing Role: Acts as arbitration gate that asserts BUS_BUSY only when all three readiness signals are asserted. Use Value: Matched tPHL/tPLH skew (<1 ns) prevents metastability during high-frequency bus handshaking cycles. |
Use Scenario: Delaying system reset release until VCC stabilizes, watchdog timer expires, and crystal oscillator achieves lock. IC Role / Device Role / Timing Role: Gates RESET_N signal with POWER_OK, WDT_TIMEOUT, and OSC_LOCK inputs to form synchronized power-up sequence. Use Value: Guaranteed VOL ≤ 0.4 V at 4 mA sink current ensures clean logic-low assertion to microcontroller reset pin, avoiding brown-out glitches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple 3-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AS11NSR | Faster tPHL/tPLH (5.5 ns max), higher IOL (20 mA), but higher ICC (18 mA max) and reduced noise margin (VIL = 0.8 V same, but VIH tolerance tighter). | Better suited for high-speed bus driving where speed > power efficiency; not drop-in due to increased supply current and thermal load. | Select SN74AS11NSR only when propagation delay <6 ns is mandatory and board-level thermal management accommodates +15 mA extra ICC. |
| SN74LS11DR | Slower (max 15 ns), lower drive (IOL = 8 mA same, but VOL rises to 0.5 V), lower ICC (22 mA max), same SOIC-14 footprint and pinout. | Legacy drop-in replacement with verified long-term availability; suitable for cost-sensitive, non-speed-critical upgrades from obsolete LS families. | Choose SN74LS11DR if existing layout uses SOIC-14 and timing budget allows ≥15 ns delay; avoids redesign while maintaining functional equivalence. |
Compared with SN74ALS11ANSR, SN74AS11NSR trades power efficiency for speed and drive strength, while SN74LS11DR sacrifices speed for broader legacy compatibility and lower design risk in maintenance-driven projects.
Availability
SN74ALS11ANSR is available at Aetrix Electronics and suitable for industrial control logic, digital address decoding, bus arbitration, and power-on reset sequencing requiring stable component supply and long-lifecycle support.
Supply support for SN74ALS11ANSR 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
Texas Instruments is a global semiconductor leader founded in 1930, specializing in analog, embedded processing, and logic solutions with broad industrial, automotive, and communications reach.
The SN74ALS11ANSR belongs to TI's legacy ALS logic family, engineered for high-speed, low-power TTL-compatible digital control in commercial-grade systems where reliability and timing predictability are critical.
FAQ
What logic family does SN74ALS11ANSR belong to, and how does it differ from standard LS TTL?
SN74ALS11ANSR belongs to the Advanced Low-Power Schottky (ALS) logic family. It improves upon standard LS TTL by reducing propagation delay (13 ns vs. 15 ns max) and supply current (ICCL = 3 mA max vs. 22 mA max), while retaining identical pinout, voltage thresholds, and DC specifications - enabling direct drop-in replacement with measurable speed and power gains.
Does SN74ALS11ANSR support 3-state or open-collector outputs?
No, SN74ALS11ANSR features standard totem-pole (push-pull) outputs only. It does not include output-enable controls, tri-state capability, or open-collector configurations. All three outputs (1Y, 2Y, 3Y) are permanently enabled and actively drive high or low based solely on their respective input combinations.
What is the maximum recommended operating temperature for SN74ALS11ANSR?
The SN74ALS11ANSR is rated for industrial operation from 0°C to 70°C. Its thermal impedance (θJA = 76°C/W) and max power dissipation limit its use to ambient environments ≤70°C; operation beyond this range risks parametric shift or accelerated aging and is not guaranteed by TI's datasheet specifications.
Can unused inputs on SN74ALS11ANSR be left floating?
No - all unused inputs on SN74ALS11ANSR must be tied to either VCC or GND. Floating inputs cause increased ICC, erratic output behavior, and potential latch-up due to internal transistor bias instability. TI explicitly mandates this in Application Report SCBA004 to ensure reliable operation across temperature and voltage extremes.
Is SN74ALS11ANSR RoHS compliant and what is its moisture sensitivity level?
Yes, SN74ALS11ANSR is RoHS compliant (lead-free NIPDAU finish) and rated MSL Level-1 (unlimited floor life at ≤30°C/85% RH), meaning it can be stored indefinitely before reflow without baking - simplifying inventory handling and SMT line logistics for high-mix manufacturing environments.
SN74ALS11ANSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALS
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- AND Gate
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 1.8 mA
- 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-SO
SN74ALS11ANSR FAQ
1.How can I place an order for SN74ALS11ANSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ALS11ANSR 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 SN74ALS11ANSR reliable?
The price and inventory of SN74ALS11ANSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALS11ANSR is usually 5 days.
3.What payment methods are accepted for SN74ALS11ANSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALS11ANSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ALS11ANSR?
SN74ALS11ANSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ALS11ANSR 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 SN74ALS11ANSR?
For technical support, including SN74ALS11ANSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALS11ANSR requirements.
6.How does Aetrix verify that SN74ALS11ANSR is sourced from the original manufacturer or authorized distributors?
All SN74ALS11ANSR 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 SN74ALS11ANSR meets industry standards.
7.What is the process for return or replacement of SN74ALS11ANSR?
All SN74ALS11ANSR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALS11ANSR, 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 SN74ALS11ANSR part is unused and in its original packaging.
Return procedure for SN74ALS11ANSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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