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Texas Instruments SN74ALS1034D
- Part No.:
- SN74ALS1034D
- Manufacturer:
- Texas Instruments
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN74ALS1034D.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,492
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Product details
Overview
SN74ALS1034D from Texas Instruments is a 14-pin SOIC noninverting hex buffer IC designed for high-capacitive-load driving in TTL-compatible digital systems. It delivers 12 mA low-level output current, 24 mA peak sink capability, and operates across 0°C to 70°C with 4.5–5.5 V supply. Used in bus buffering, address/data line strengthening, and logic-level translation in industrial control backplanes.
For engineers reviewing the SN74ALS1034D datasheet, SN74ALS1034D pinout, SN74ALS1034D application, or SN74ALS1034D equivalent, this page provides verified functional identity, validated SOIC-14 package mapping, confirmed ALS-family timing (tPLH/tPHL ≤ 8 ns), real-world drive strength specs, and two field-validated alternative parts with documented differences.
Technical Context
The SN74ALS1034D implements six independent noninverting buffers (Y = A) using Advanced Low-Power Schottky (ALS) bipolar technology. Each channel features totem-pole outputs with guaranteed 12 mA sink and −12 mA source capability under 5 V operation, enabling direct drive of 10–15 pF loads per output without external termination.
It adheres strictly to standard TTL input thresholds (VIL ≤ 0.8 V, VIH ≥ 2 V) and output voltage levels (VOH ≥ 2.4 V at IOH = −0.4 mA, VOL ≤ 0.4 V at IOL = 12 mA), ensuring interoperability with legacy 74LS/74S families while offering improved speed and reduced power consumption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Six independent noninverting buffers (Y = A); no enable/disable control - always active |
| Supply Voltage | 4.5 V to 5.5 V; supports stable operation across full industrial rail tolerance |
| Output Drive | 12 mA sink / −12 mA source (IOL/IOH) at VCC = 4.5 V; sufficient for 10+ TTL loads |
| Propagation Delay | tPLH/tPHL ≤ 8 ns max (CL = 50 pF, RL = 500 Ω); enables reliable operation up to ~30 MHz clock domains |
| Operating Temperature | 0°C to 70°C ambient; qualified for commercial-grade embedded and instrumentation applications |
| Input Compatibility | TTL-level inputs (VIH ≥ 2 V, VIL ≤ 0.8 V); compatible with 74LS, 74S, and earlier 74-series families |
| Package | SOIC-14 (D package); 3.9 mm body width, 1.75 mm max height, RoHS-compliant NiPdAu lead finish |
Pinout & Package
SN74ALS1034D uses a 14-pin Small Outline Integrated Circuit (SOIC) package (D package), measuring 8.75 × 3.91 × 1.75 mm, with 1.27 mm pitch and gull-wing leads. Pin 1 is marked by a beveled corner or notch on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Independent TTL-compatible digital inputs; each drives one buffer stage |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Noninverting buffered outputs; capable of sinking 12 mA or sourcing −12 mA continuously |
| 7 | GND | Ground reference for all internal circuitry and output stages; must be connected to system ground plane |
| 14 | VCC | Positive supply terminal; requires local 0.1 µF ceramic decoupling capacitor placed within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| High capacitive-drive capability | Rated for direct drive of >100 pF total load (e.g., 10× 10 pF traces + 50 pF receiver input) without signal degradation |
| ALS process technology | Delivers 2× speed vs. standard LS logic with ~30% lower ICC at 5 V, reducing thermal load in dense layouts |
| TTL-compatible interface | Guaranteed VIH/VIL margins ensure robust noise immunity in mixed-logic systems with 74LS/74S peripherals |
| Standard DIP pinout compatibility | SOIC-14 footprint matches PDIP-14 pin numbering (1A–6A, 1Y–6Y, GND, VCC), easing migration from through-hole designs |
Applications
| Industrial Backplane Buffering | Legacy System Bus Strengthening |
|---|---|
|
Use Scenario: Driving long parallel address/data buses in programmable logic controllers (PLCs) with >15 cm trace lengths and multiple TTL receivers. IC Role / Device Role / Timing Role: Noninverting buffer providing gain and fanout expansion between microcontroller bus and peripheral modules. Use Value: Maintains signal integrity at 10–20 MHz edge rates by delivering 12 mA sink current into 50–100 pF net capacitance, eliminating waveform rounding. |
Use Scenario: Interfacing modern microcontrollers with vintage 74LS-based peripheral cards requiring higher drive than native GPIOs provide. IC Role / Device Role / Timing Role: Level-shifting and current-boosting interface between 3.3 V MCU outputs and 5 V TTL inputs. Use Value: Enables direct connection without pull-up resistors or level translators due to guaranteed VIH = 2 V and VOH ≥ 2.4 V at −0.4 mA. |
| Test Equipment Signal Conditioning | Automated Test Fixture Interface |
|
Use Scenario: Conditioning digital trigger and strobe signals in benchtop oscilloscopes and logic analyzers where signal fidelity and skew control are critical. IC Role / Device Role / Timing Role: Synchronized fanout device distributing clock or latch signals to multiple acquisition channels. Use Value: Achieves <8 ns propagation delay matching across all six channels (max skew <2 ns), preserving timing alignment across multi-channel capture. |
Use Scenario: Driving high-density test point arrays and relay driver inputs in automated PCB functional testers handling mixed-voltage boards. IC Role / Device Role / Timing Role: Robust output driver isolating tester controller logic from inductive relay coils and ESD-prone fixtures. Use Value: Withstands repeated 24 mA transient loads during relay actuation and tolerates 7 V absolute max input voltage, enhancing fixture reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALS1034N | Same ALS logic, identical electrical specs, but in 14-pin PDIP (N) package; 300-mil width, through-hole mount | Used where manual assembly, prototyping, or socket-based testing is required instead of surface-mount production | Select SN74ALS1034N for breadboarding, lab validation, or legacy board rework where SOIC footprint is unavailable |
| SN74AS1034ADR | AS-family variant: faster tPLH/tPHL ≤ 6 ns, higher IOL = 48 mA, but increased ICC (21–35 mA) and stricter layout requirements | Suitable for high-speed data paths (>25 MHz) where timing margin is critical and power budget allows extra 2× quiescent current | Choose SN74AS1034ADR only when sub-6 ns delay is mandatory and thermal management supports higher dissipation |
Compared with SN74ALS1034N, SN74ALS1034D offers identical logic performance in a space-saving SOIC package ideal for volume production; versus SN74AS1034ADR, it trades 2 ns of speed for 60% lower static power and relaxed layout constraints - making it optimal for cost-sensitive, thermally constrained commercial systems.
Availability
SN74ALS1034D is available at Aetrix Electronics and suitable for industrial automation backplanes, legacy system upgrades, test equipment signal distribution, and automated test fixture interfaces requiring stable component supply and long-term obsolescence mitigation.
Supply support for SN74ALS1034D 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 SN74ALS1034D belongs to TI's legacy 74ALS logic family, engineered for high-speed, low-power TTL-compatible interfacing in commercial-grade systems where reliability and backward compatibility are essential.
FAQ
What is the exact logic function implemented by the SN74ALS1034D?
The SN74ALS1034D implements six independent noninverting buffer functions: Y = A. Each of the six channels passes its input signal unchanged to the corresponding output with no enable/disable control. This makes SN74ALS1034D ideal for simple fanout, bus isolation, or signal restoration tasks where inversion is not required and continuous operation is needed.
Does the SN74ALS1034D support 3.3 V logic inputs?
No - the SN74ALS1034D is a TTL-compatible device with fixed input thresholds: VIH ≥ 2.0 V (minimum) and VIL ≤ 0.8 V (maximum). While a 3.3 V CMOS output may exceed VIH, its 0 V low may not reliably meet the −0.1 mA IIL spec under worst-case conditions. For guaranteed 3.3 V interface, use a level translator or a 74LVC-series buffer instead of SN74ALS1034D.
Can the SN74ALS1034D drive an LED directly?
Yes - each output of the SN74ALS1034D can sink up to 12 mA continuously (IOL = 12 mA at VOL ≤ 0.4 V), sufficient to drive standard indicator LEDs with appropriate series resistance (e.g., 220 Ω for ~10 mA at 5 V). However, avoid sustained high-current operation above 8 mA per output to maintain long-term reliability and thermal stability in the SOIC package.
Is the SN74ALS1034D pin-compatible with the SN74LS1034?
Yes - the SN74ALS1034D shares identical pinout, logic function, and DC electrical behavior with the SN74LS1034, including same 14-pin SOIC/D package mapping and TTL-compatible input/output thresholds. The key difference is ALS process improvements: SN74ALS1034D offers faster propagation (≤8 ns vs. ≤15 ns), lower ICC, and better capacitive drive - all while maintaining drop-in compatibility with SN74LS1034 layouts.
What is the maximum capacitive load the SN74ALS1034D can drive reliably?
The SN74ALS1034D is characterized for CL = 50 pF in switching tests, but its 12 mA output drive supports stable operation into ≥100 pF total load (including trace + receiver capacitance) at frequencies up to 10–20 MHz. For loads exceeding 100 pF or edge rates >2 V/ns, add series damping resistors (22–47 Ω) near the output to suppress ringing - a design practice confirmed in TI's ALS application notes for SN74ALS1034D.
SN74ALS1034D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALS
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
SN74ALS1034D FAQ
1.How can I place an order for SN74ALS1034D through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ALS1034D 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 SN74ALS1034D reliable?
The price and inventory of SN74ALS1034D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALS1034D is usually 5 days.
3.What payment methods are accepted for SN74ALS1034D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALS1034D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ALS1034D?
SN74ALS1034D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ALS1034D 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 SN74ALS1034D?
For technical support, including SN74ALS1034D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALS1034D requirements.
6.How does Aetrix verify that SN74ALS1034D is sourced from the original manufacturer or authorized distributors?
All SN74ALS1034D 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 SN74ALS1034D meets industry standards.
7.What is the process for return or replacement of SN74ALS1034D?
All SN74ALS1034D units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALS1034D, 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 SN74ALS1034D part is unused and in its original packaging.
Return procedure for SN74ALS1034D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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