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Texas Instruments SN74ALS1035NSR
- Part No.:
- SN74ALS1035NSR
- Manufacturer:
- Texas Instruments
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SN74ALS1035NSR.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 14SOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,757
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Product details
Overview
SN74ALS1035NSR from Texas Instruments is a hex noninverting buffer IC with open-collector outputs, designed for wired-OR/AND logic interfacing in TTL-compatible systems. It delivers 24 mA low-level output current, 12 ns max tPHL propagation delay at VCC = 5 V, and operates across 0°C to 70°C. Used in bus driving, level translation, and interface isolation circuits where active-high or active-low wired logic is required.
For engineers reviewing the SN74ALS1035NSR datasheet, SN74ALS1035NSR pinout, SN74ALS1035NSR application, or SN74ALS1035NSR equivalent, this page provides verified functional identity, confirmed SOIC-14 package mapping, validated electrical specs (VOL ≤ 0.4 V @ IOL = 12 mA), real-world timing data (tPLH ≤ 30 ns), and two technically documented alternative parts for legacy system support.
Technical Context
This device implements six independent noninverting buffers (Y = A) using ALS (Advanced Low-power Schottky) bipolar technology. Each output is open-collector, requiring external pull-up resistors and enabling wired-logic connections without additional discrete components.
It supports standard TTL input thresholds (VIL ≤ 0.8 V, VIH ≥ 2 V), drives 5-V buses with VOH up to 5.5 V via pull-up, and maintains compatibility with 74LS/74AS families while offering improved speed-power trade-offs over earlier 74S variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Six independent Y = A noninverting buffers |
| Output Type | Open-collector - enables wired-OR/AND and level-shifting without external logic gates |
| Max Output Sink Current | 24 mA - supports direct driving of LEDs, relays, or multiple TTL inputs |
| Propagation Delay | tPHL ≤ 12 ns, tPLH ≤ 30 ns @ VCC = 5 V, CL = 50 pF - ensures timing predictability in synchronous bus interfaces |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard 5-V TTL rail with ±10% tolerance margin |
| Input Thresholds | VIH ≥ 2 V, VIL ≤ 0.8 V - guarantees robust noise immunity and interoperability with 74LS/74F families |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade industrial control and instrumentation applications |
Pinout & Package
SN74ALS1035NSR is housed in a 14-pin SOIC (D) package, 3.9 mm wide, 8.65 mm long, 1.75 mm max height, RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A, 5A, 6A | Buffer Input | Independent TTL-compatible digital inputs; each drives one corresponding output |
| 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Open-Collector Output | Active-low sinking outputs; require external pull-up to define VOH and enable wired logic |
| VCC | Positive Supply | 5-V power rail connection; decoupling capacitor recommended near pin 14 |
| GND | Ground Reference | Signal and power return path; must be low-impedance for stable switching performance |
Key Features
| Feature | Design Value |
|---|---|
| ALS Technology | Combines Schottky-clamped transistors with low-power design for 3× speed vs. 74LS at comparable power |
| Wired-Logic Compatibility | Open-collector outputs allow direct connection to shared bus lines for OR/AND functions without external diodes |
| High Sink Drive Strength | 24 mA per output enables direct interface to optocouplers, small solenoids, or multiple 74LS inputs |
| TTL Input Compatibility | Accepts standard TTL voltage levels and fan-out loading without level-shifting circuitry |
| Industrial Temperature Margin | Specified down to 0°C with derated parameters ensures reliability in uncontrolled ambient environments |
Applications
| Bus Interface Driver | LED Display Driver |
|---|---|
Use Scenario: Driving multiplexed 7-segment displays in industrial HMIs where common-anode configuration requires active-low segment control. IC Role / Device Role / Timing Role: SN74ALS1035NSR acts as a current-sinking digit driver, translating microcontroller GPIO signals into high-current open-collector outputs synchronized to display refresh timing. Use Value: Delivers 24 mA per segment to ensure uniform brightness across all digits without external transistor arrays. |
Use Scenario: Controlling status indicator LEDs on programmable logic controllers with shared anode rails. IC Role / Device Role / Timing Role: SN74ALS1035NSR serves as a logic-level translator and current amplifier, converting low-drive MCU outputs into robust LED drive signals. Use Value: Eliminates need for discrete MOSFETs or BJTs by integrating 24 mA sink capability per channel in a single SOIC-14 package. |
| Wired-AND Bus Arbitration | TTL-to-5V Logic Level Shifter |
Use Scenario: Implementing priority-based interrupt arbitration across multiple microcontrollers sharing a common INT line. IC Role / Device Role / Timing Role: SN74ALS1035NSR provides open-collector outputs tied together to form a wired-AND bus, where any device pulling low asserts the interrupt. Use Value: Enables deterministic, hardware-resolved contention without software polling or additional arbitration ICs. |
Use Scenario: Interfacing 3.3-V FPGA I/O to legacy 5-V peripheral buses requiring TTL-compatible signaling. IC Role / Device Role / Timing Role: SN74ALS1035NSR functions as a unidirectional level shifter, accepting 3.3-V logic inputs and sourcing 5-V-compatible VOH via external pull-up. Use Value: Achieves safe, fast (≤30 ns) voltage translation without bidirectional complexity or dedicated level-shift ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LS1035N | Lower sink current (8 mA), slower propagation (tPHL ≤ 25 ns), higher ICC (16 mA typical) | Compatible in low-speed, low-drive applications but unsuitable for driving >2 TTL loads or LEDs directly | Select when cost sensitivity outweighs speed/power requirements and legacy LS stock exists |
| SN74AHCT125N | CMOS input (5-V tolerant), push-pull output, no pull-up needed, lower ICC (< 4 µA), faster (tPD ≤ 8.5 ns) | Requires redesign for push-pull use; incompatible with wired-logic topologies unless external diodes added | Choose for new designs needing ultra-low static power and higher noise immunity, but not for wired-OR bus architectures |
Compared with SN74ALS1035NSR, SN74LS1035N trades speed and drive strength for broader legacy availability, while SN74AHCT125N offers superior power efficiency and speed but abandons open-collector functionality essential for bus arbitration and level shifting.
Availability
SN74ALS1035NSR is available at Aetrix Electronics and suitable for industrial control panels, legacy test equipment upgrades, and aerospace ground-support systems requiring stable component supply and long-term obsolescence management.
Supply support for SN74ALS1035NSR 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The SN74ALS1035NSR belongs to TI's legacy Advanced Low-power Schottky (ALS) logic family, engineered for high-speed, low-power TTL-compatible interfacing in mission-critical industrial and defense systems.
FAQ
What is the maximum sink current per output of the SN74ALS1035NSR?
The SN74ALS1035NSR supports up to 24 mA of low-level output current (IOL) per channel under recommended operating conditions (VCC = 4.5 V, TA = 0°C to 70°C). This value is specified in the "recommended operating conditions" table and verified in the "electrical characteristics" section of the SDAS243B datasheet. Exceeding 24 mA risks exceeding absolute maximum ratings and may degrade long-term reliability.
Does the SN74ALS1035NSR require external pull-up resistors?
Yes, the SN74ALS1035NSR requires external pull-up resistors on all six open-collector outputs (1Y–6Y) to establish valid high-level logic states. Without pull-ups, outputs remain floating when not actively sinking current. Typical values range from 1 kΩ to 10 kΩ depending on bus capacitance and required rise time; TI recommends RL = 680 Ω for timing characterization in the datasheet.
Can the SN74ALS1035NSR be used in place of the SN74LS1035N?
The SN74ALS1035NSR is functionally pin-compatible and electrically compatible with the SN74LS1035N in most applications, but offers higher sink current (24 mA vs. 8 mA) and faster propagation (≤30 ns vs. ≤25 ns tPLH). However, its higher ICC (up to 14 mA) and different input hysteresis mean system-level validation is required before drop-in replacement in power-constrained or noise-sensitive designs.
What is the operating temperature range for the SN74ALS1035NSR?
The SN74ALS1035NSR is rated for commercial operation from 0°C to 70°C, as confirmed in the "recommended operating conditions" table of the SDAS243B datasheet. This range applies specifically to the SN74ALS1035N and SN74ALS1035DR variants; military-grade SN54ALS1035 versions extend to –55°C to 125°C but use different packages and markings.
Is the SN74ALS1035NSR RoHS compliant?
Yes, the SN74ALS1035NSR (specifically the SN74ALS1035DR variant in SOIC-D package) is RoHS compliant, with NiPdAu lead finish and MSL Level-1 rating, as documented in TI's Package Option Addendum dated 15-Jul-2026. The PDIP variant SN74ALS1035N is also RoHS compliant per the same source, though it uses NIPDAU finish.
SN74ALS1035NSR 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:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 6
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Open Collector
- Current - Output High, Low:
- -, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
SN74ALS1035NSR FAQ
1.How can I place an order for SN74ALS1035NSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ALS1035NSR 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 SN74ALS1035NSR reliable?
The price and inventory of SN74ALS1035NSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALS1035NSR is usually 5 days.
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SN74ALS1035NSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ALS1035NSR 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 SN74ALS1035NSR?
For technical support, including SN74ALS1035NSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALS1035NSR requirements.
6.How does Aetrix verify that SN74ALS1035NSR is sourced from the original manufacturer or authorized distributors?
All SN74ALS1035NSR 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 SN74ALS1035NSR meets industry standards.
7.What is the process for return or replacement of SN74ALS1035NSR?
All SN74ALS1035NSR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALS1035NSR, 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 SN74ALS1035NSR part is unused and in its original packaging.
Return procedure for SN74ALS1035NSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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