Texas Instruments SN74ALS1034N
- Part No.:
- SN74ALS1034N
- Manufacturer:
- Texas Instruments
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
SN74ALS1034N.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14DIP
- Quantity:
- Payment:

- Shipping:

Inventory:386
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Product details
Overview
SN74ALS1034N from Texas Instruments is a 14-pin PDIP-packaged hex noninverting buffer IC, designed for TTL-compatible logic-level translation and high-capacitive-load driving in industrial control and legacy digital systems. It delivers 12 mA low-level output current (IOL), 2.4 V minimum VOH at −12 mA, and operates across 0°C to 70°C with 4.5–5.5 V supply voltage.
For engineers reviewing the SN74ALS1034N datasheet, SN74ALS1034N pinout, SN74ALS1034N application, or SN74ALS1034N equivalent, this device serves as a robust, through-hole-compatible driver for bus buffering, line driving, and level-shifting where ALS-series speed-power tradeoffs and legacy DIP footprint compatibility are required.
Technical Context
The SN74ALS1034N implements six independent totem-pole output buffers with Boolean function Y = A and no internal 3-state control. Its ALS (Advanced Low-Power Schottky) architecture provides faster propagation delay (tPLH/tPHL ≤ 8 ns at CL = 50 pF) than standard LS while maintaining lower ICC than AS variants.
It features TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V), rail-to-rail output swing under load, and absolute maximum ratings including 7 V supply and input voltage tolerance - enabling safe interfacing with mixed-voltage subsystems and transient-prone environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ALS (Advanced Low-Power Schottky) - balances speed (≤8 ns delay) and power (ICCL ≤ 14 mA) better than LS, less aggressive than AS |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with regulated 5 V rails; supports marginal brown-out conditions down to 4.5 V |
| Output Drive Capability | IOL = 12 mA / IOH = −12 mA - sufficient to drive 10+ standard TTL loads or 50 pF transmission lines |
| Propagation Delay | tPLH/tPHL ≤ 8 ns (max) at VCC = 4.5–5.5 V, CL = 50 pF - enables reliable operation up to ~30 MHz clock distribution |
| Operating Temperature | 0°C to 70°C - qualified for commercial/industrial ambient environments, not extended or military grade |
| Input Compatibility | VIL ≤ 0.8 V, VIH ≥ 2.0 V - fully interoperable with standard TTL, LSTTL, and most CMOS outputs at 5 V |
| Output Voltage Levels | VOH ≥ 2.4 V @ −12 mA, VOL ≤ 0.4 V @ 12 mA - ensures noise margin > 0.4 V in typical TTL fanout configurations |
Pinout & Package
SN74ALS1034N uses a 14-pin plastic dual in-line package (PDIP-N), 300-mil width, with 0.1-inch lead pitch and through-hole mounting. Pin 1 is marked by a notch or dot at the top-left corner of the package body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Independent TTL-compatible logic inputs; each drives one buffer stage |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Noninverting buffered outputs with totem-pole structure; capable of sourcing/sinking 12 mA |
| 7 | GND | Ground reference for all logic and output stages; must be low-impedance connection |
| 14 | VCC | Positive supply terminal (4.5–5.5 V); requires local 0.1 µF ceramic decoupling near pin |
Key Features
| Feature | Design Value |
|---|---|
| Hex noninverting buffer | Six independent Y = A functions in one package - reduces board space vs discrete buffers and simplifies routing |
| High capacitive-drive capability | Stable 50 pF load driving at ≤8 ns delay - suitable for backplane or long-trace signal conditioning |
| TTL-compatible I/O | Meets standard TTL voltage thresholds and loading specs - enables drop-in replacement in legacy LS/ALS designs |
| ALS logic family performance | Lower power than AS (ICCL = 8–14 mA vs 21–35 mA), faster than LS (8 ns vs 15–20 ns) - optimal for mid-speed, low-heat applications |
| PDIP-14 packaging | Through-hole mount with 300-mil width - supports prototyping, repair, and industrial systems requiring mechanical robustness |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Signal Buffering |
|---|---|
Use Scenario: Driving multiple optocoupler inputs on a programmable logic controller expansion module with long PCB traces. IC Role / Device Role / Timing Role: Noninverting buffer isolating MCU GPIO from capacitive bus loads while preserving logic polarity and timing integrity. Use Value: Delivers 12 mA sink current per channel to ensure fast optocoupler turn-on, with ≤8 ns propagation delay minimizing cycle-time penalty in scan-based I/O updates. |
Use Scenario: Re-driving TTL-level address/data signals across a 12-inch backplane in an aging test equipment chassis. IC Role / Device Role / Timing Role: Hex buffer restoring signal edge rate and amplitude degraded by trace capacitance and connector losses. Use Value: Maintains >0.4 V noise margin at 50 pF load and supports reliable 25 MHz bus operation without added termination or active repeaters. |
| Embedded System Level Translation | Repair Replacement for LS1034 |
Use Scenario: Interfacing a 5 V microcontroller's GPIO bank to a 5 V peripheral requiring higher drive strength than the MCU can provide. IC Role / Device Role / Timing Role: Logic-level translator and current amplifier - accepts MCU outputs and drives heavier loads without voltage shift. Use Value: Eliminates need for discrete transistor arrays; ALS family's lower ICC versus AS reduces thermal load in space-constrained enclosures. |
Use Scenario: Field replacement of obsolete SN74LS1034 in maintenance of legacy instrumentation hardware. IC Role / Device Role / Timing Role: Pin-compatible functional upgrade - same PDIP-14 footprint, identical pinout, and improved speed/power over LS variant. Use Value: Enables direct solder-in replacement with measurable improvement in propagation delay (8 ns vs 15 ns) and reduced supply current (14 mA vs 22 mA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LS1034N | Slower (tPLH/tPHL ≤ 15 ns), higher ICC (ICCL ≤ 22 mA), same PDIP-14 pinout and logic function | Acceptable where speed < 10 MHz and power budget allows extra 8 mA per device | Preferred only when strict LS-family consistency is mandated for system-wide timing analysis |
| SN74AS1034AN | Faster (tPLH/tPHL ≤ 6 ns), higher drive (IOL = 48 mA), higher ICC (ICCL ≤ 35 mA), same pinout and voltage specs | Suitable for high-speed bus re-driving but increases thermal load and EMI risk in noise-sensitive analog-adjacent layouts | Select when propagation delay < 7 ns is critical and board-level thermal management accommodates +20 mA additional supply current |
Compared with SN74LS1034N, SN74ALS1034N offers 47% faster propagation and 36% lower quiescent current; versus SN74AS1034AN, it trades 25% speed reduction for 50% lower power and improved noise immunity - making it the balanced choice for cost-sensitive, thermally constrained industrial upgrades.
Availability
SN74ALS1034N is available at Aetrix Electronics and suitable for industrial control systems, legacy equipment repair, and embedded interface design requiring stable component supply, long-term obsolescence mitigation, and through-hole assembly compatibility.
Supply support for SN74ALS1034N 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 with decades of expertise in logic IC design, manufacturing, and reliability validation across industrial, automotive, and aerospace markets.
The SN74ALS1034N belongs to TI's legacy ALS logic family, engineered specifically for applications demanding better speed-power efficiency than LS while retaining full TTL compatibility and robust through-hole packaging for serviceability and long-lifecycle deployments.
FAQ
What is the maximum operating temperature range for the SN74ALS1034N?
The SN74ALS1034N is characterized for operation from 0°C to 70°C - the commercial temperature range. This is confirmed in the recommended operating conditions table of the SDAS053B datasheet. It is not rated for extended industrial (−40°C to 85°C) or military (−55°C to 125°C) ranges; those apply only to SN54ALS1034 variants.
Is the SN74ALS1034N pin-compatible with the SN74LS1034N?
Yes, the SN74ALS1034N is pin-compatible with SN74LS1034N: both use identical 14-pin PDIP packages and share the same pinout - inputs on odd pins (1,3,5,9,11,13), outputs on even pins (2,4,6,8,10,12), GND on pin 7, and VCC on pin 14. No PCB changes are required for direct replacement.
What is the typical propagation delay of the SN74ALS1034N at 5 V supply?
The typical propagation delay (tPLH and tPHL) of the SN74ALS1034N is 4 ns at VCC = 5 V, CL = 50 pF, and TA = 25°C, as specified in the "electrical characteristics" table of the SDAS053B datasheet. The maximum guaranteed delay across temperature and voltage is 8 ns.
Does the SN74ALS1034N support 3-state outputs?
No, the SN74ALS1034N does not support 3-state outputs. It contains six standard totem-pole output buffers with fixed high/low drive - no output-enable (OE) control or high-impedance state. Devices with 3-state capability in this family include variants like SN74ALS240N, not SN74ALS1034N.
What is the maximum capacitive load the SN74ALS1034N can reliably drive?
The SN74ALS1034N is characterized for reliable operation with a 50 pF capacitive load, as defined in its switching characteristics test conditions (CL = 50 pF, RL = 500 Ω). While it may drive larger loads, timing degradation and potential waveform distortion occur beyond this value - system-level validation is required for loads >50 pF.
SN74ALS1034N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALS
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 6
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 15mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
SN74ALS1034N FAQ
1.How can I place an order for SN74ALS1034N through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ALS1034N 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 SN74ALS1034N reliable?
The price and inventory of SN74ALS1034N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALS1034N is usually 5 days.
3.What payment methods are accepted for SN74ALS1034N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALS1034N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ALS1034N?
SN74ALS1034N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ALS1034N 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 SN74ALS1034N?
For technical support, including SN74ALS1034N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALS1034N requirements.
6.How does Aetrix verify that SN74ALS1034N is sourced from the original manufacturer or authorized distributors?
All SN74ALS1034N 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 SN74ALS1034N meets industry standards.
7.What is the process for return or replacement of SN74ALS1034N?
All SN74ALS1034N units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALS1034N, 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 SN74ALS1034N part is unused and in its original packaging.
Return procedure for SN74ALS1034N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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