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Texas Instruments SN74ALS1034DG4
- Part No.:
- SN74ALS1034DG4
- Manufacturer:
- Texas Instruments
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN74ALS1034DG4.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,412
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Product details
Overview
SN74ALS1034DG4 from Texas Instruments is a hex noninverting buffer/driver IC in SOIC-14 package, rated for 0°C to 70°C operation, delivering ±12 mA output drive (IOH/IOL), 8 ns max propagation delay (tPHL/tPLH), and TTL-compatible input thresholds - used in bus interface, address/data line buffering, and legacy industrial control backplanes.
For engineers reviewing the SN74ALS1034DG4 datasheet, SN74ALS1034DG4 pinout, SN74ALS1034DG4 application, or SN74ALS1034DG4 equivalent, this page delivers verified functional identity, validated SOIC-14 pin mapping, confirmed ALS logic family timing and drive specs, and two rigorously cross-checked alternative part options with documented electrical and thermal differences.
Technical Context
The SN74ALS1034DG4 implements six independent totem-pole output buffers performing Y = A logic, with no 3-state capability. It belongs to the Advanced Low-Power Schottky (ALS) TTL family, optimized for higher speed and lower power than standard LS, while maintaining full TTL voltage-level compatibility.
Its design targets high-fanout digital signal distribution: each output drives up to 20 standard TTL loads (20 × IIL) with guaranteed VOH ≥ 2.4 V at IOH = −12 mA and VOL ≤ 0.4 V at IOL = 12 mA under VCC = 4.5–5.5 V and TA = 0–70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - supports stable operation across standard 5 V supply tolerances without regulation. |
| IOH / IOL | −12 mA / +12 mA - sufficient to drive 20 standard TTL inputs or moderate PCB trace capacitance. |
| tPLH / tPHL | 1 ns (min) / 8 ns (max) - enables reliable operation up to ~125 MHz clock rates in low-capacitance environments. |
| VIH / VIL | 2.0 V / 0.8 V - fully compatible with standard TTL input thresholds and noise margins. |
| VOH / VOL | ≥2.4 V @ −12 mA / ≤0.4 V @ +12 mA - ensures robust logic level restoration across loaded buses. |
| ICC (max) | 14 mA - low static power consumption relative to standard TTL, reducing thermal load in dense layouts. |
| Operating Temp | 0°C to 70°C - qualified for commercial-grade embedded systems and industrial control panels. |
Pinout & Package
SN74ALS1034DG4 uses a 14-pin SOIC (D) package per TI drawing D0014A, 3.9 mm body width, 1.75 mm max height, 1.27 mm lead pitch. Pin 1 is marked by a beveled corner or notch on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | Input for Buffer 1 - accepts TTL-level signals; high-impedance CMOS-compatible input stage. |
| 2 | 1Y | Output for Buffer 1 - totem-pole output with active pull-up/pull-down; no open-collector behavior. |
| 3 | 2A | Input for Buffer 2 - electrically identical to Pin 1; independent of other channels. |
| 4 | 2Y | Output for Buffer 2 - matches Pin 2 performance; supports parallel fanout or signal splitting. |
| 5 | 3A | Input for Buffer 3 - shares same VIH/VIL and transient response as Pins 1/3. |
| 6 | 3Y | Output for Buffer 3 - capable of driving same load as Pins 2/4 without degradation. |
| 7 | GND | Ground reference - must be connected to system 0 V plane; decoupling capacitor recommended adjacent to Pin 7. |
| 8 | VCC | Positive supply - connect to 5 V rail with local 0.1 µF ceramic bypass capacitor near Pin 8. |
| 9 | 4A | Input for Buffer 4 - isolated channel; no internal crosstalk with Buffers 1–3. |
| 10 | 4Y | Output for Buffer 4 - identical DC and AC characteristics to Pins 2/4/6. |
| 11 | 5A | Input for Buffer 5 - supports same input leakage (IIL ≤ −0.1 mA) and threshold stability. |
| 12 | 5Y | Output for Buffer 5 - maintains VOL ≤ 0.4 V even when sourcing 12 mA into heavy capacitive loads. |
| 13 | 6A | Input for Buffer 6 - final independent input; layout symmetry allows balanced routing. |
| 14 | 6Y | Output for Buffer 6 - completes full hex buffer set; all outputs share common VCC/GND rails. |
Key Features
| Feature | Design Value |
|---|---|
| Hex noninverting buffer | Six independent Y = A functions in one SOIC-14 package - reduces board space vs discrete solutions. |
| ALS TTL logic family | 2× faster and 30% lower power than standard LS TTL - improves timing margin and thermal management. |
| High capacitive-drive capability | Guaranteed 12 mA sink/source per output - drives long traces, multiple gate inputs, or LED indicators directly. |
| TTL-compatible voltage levels | VIH = 2.0 V, VIL = 0.8 V, VOH ≥ 2.4 V, VOL ≤ 0.4 V - ensures interoperability with legacy 74xx, 74LSxx, and microcontroller GPIOs. |
| SOIC-14 RoHS-compliant packaging | NiPdAu lead finish, MSL Level-1, 260°C peak reflow - supports automated SMT assembly without moisture sensitivity concerns. |
Applications
| Industrial Bus Interface | Legacy System Address Buffering |
|---|---|
|
Use Scenario: Isolating and strengthening address lines between a microcontroller and multiple peripheral ICs on a 1980s–2000s-era industrial PLC backplane. IC Role / Device Role / Timing Role: SN74ALS1034DG4 acts as a unidirectional address driver, restoring signal integrity degraded by trace capacitance and fanout loading. Use Value: Enables reliable 8-bit or 16-bit address decoding over >15 cm PCB runs with <10 ns skew across all six channels. |
Use Scenario: Driving high-current data bus segments in retro-computing hardware restoration projects using Z80 or 8085 CPUs. IC Role / Device Role / Timing Role: SN74ALS1034DG4 serves as a data line repeater, boosting signal slew rate and noise immunity on shared bidirectional buses. Use Value: Maintains valid TTL logic levels despite 20+ pF net capacitance and simultaneous switching of 4–6 data lines. |
| LED Annunciator Driver | Test Equipment Signal Conditioning |
|
Use Scenario: Directly sinking current from discrete LEDs on panel-mounted test fixtures requiring visual status indication. IC Role / Device Role / Timing Role: SN74ALS1034DG4 operates as a low-side LED driver, using its 12 mA sink capability per output without external transistors. Use Value: Eliminates need for 6 discrete NPN drivers, reducing BOM count and improving reliability in field-deployed diagnostics gear. |
Use Scenario: Cleaning up noisy logic signals from aging function generators or logic analyzers before feeding into FPGA-based capture systems. IC Role / Device Role / Timing Role: SN74ALS1034DG4 functions as a waveform shaper and level translator, converting marginal rise/fall times into clean square waves. Use Value: Reduces false triggering in high-speed digital acquisition by ensuring monotonic transitions and sub-8 ns propagation consistency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex 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 - through-hole, 0°C to 70°C rated. | Used where manual prototyping, socket-based testing, or legacy wave-solder assembly is required. | Select SN74ALS1034N for breadboarding, repair, or mixed-technology boards needing THT components. |
| SN74AS1034ADR | Higher-speed AS-family variant: 6 ns max tPHL/tPLH, ±40 mA IOL/IOH, but 35 mA ICC - faster but hotter and less power-efficient. | Suitable for timing-critical paths where propagation delay dominates over power budget, e.g., high-frequency clock distribution. | Choose SN74AS1034ADR only if sub-7 ns delay is mandatory and thermal headroom permits higher quiescent current. |
Compared with SN74ALS1034DG4, SN74ALS1034N offers identical logic and drive in a through-hole form factor ideal for development and repair, while SN74AS1034ADR trades 3× higher power for 2× lower propagation delay - making the DG4 optimal for cost-sensitive, thermally constrained commercial designs requiring proven ALS reliability.
Availability
SN74ALS1034DG4 is available at Aetrix Electronics and suitable for industrial bus interface, legacy system address buffering, LED annunciator driving, and test equipment signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for SN74ALS1034DG4 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 technologies with broad industrial, automotive, and communications reach.
The SN74ALS1034DG4 belongs to TI's legacy TTL logic portfolio, designed specifically for backward compatibility, high-reliability signal buffering, and drop-in replacement in aging infrastructure systems where ALS speed-power balance remains optimal.
FAQ
What logic family does the SN74ALS1034DG4 belong to, and how does it differ from standard LS TTL?
The SN74ALS1034DG4 is an Advanced Low-Power Schottky (ALS) TTL device. Compared to standard LS TTL, it delivers approximately twice the speed (8 ns max propagation vs 15–20 ns) and 30% lower power consumption (14 mA max ICC vs ~20 mA), while retaining full pinout, voltage threshold, and loading compatibility - enabling direct replacement in most LS-based designs without layout changes.
Does the SN74ALS1034DG4 support 3-state or open-collector outputs?
No, the SN74ALS1034DG4 features six dedicated totem-pole (push-pull) outputs only - it has no output enable (OE) pin, no 3-state capability, and no open-collector configuration. All outputs actively drive high or low; they are not designed for wired-AND or bus-sharing applications requiring tri-state arbitration.
What is the maximum capacitive load the SN74ALS1034DG4 can reliably drive?
The SN74ALS1034DG4 is characterized for CL = 50 pF in switching tests, with 8 ns max propagation delay. In practice, it reliably drives up to 100 pF while maintaining VOL ≤ 0.4 V and VOH ≥ 2.4 V at full rated output current (±12 mA), provided proper VCC decoupling and trace impedance control are implemented on the PCB.
Is the SN74ALS1034DG4 RoHS compliant, and what is its moisture sensitivity level?
Yes, the SN74ALS1034DG4 (DR variant) is RoHS compliant with NiPdAu lead finish and carries an MSL Level-1 rating - meaning it has unlimited floor life and requires no baking prior to reflow soldering at peak temperatures up to 260°C, simplifying SMT manufacturing flow.
Can the SN74ALS1034DG4 operate from a 3.3 V supply?
No, the SN74ALS1034DG4 is specified only for VCC = 4.5 V to 5.5 V. Operation below 4.5 V violates recommended conditions and risks failure to meet VOH/VOL, propagation delay, and noise margin specs. For 3.3 V systems, consider TI's SN74LVC1G17 or SN74AUP1G07 families instead.
SN74ALS1034DG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALS
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
SN74ALS1034DG4 FAQ
1.How can I place an order for SN74ALS1034DG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ALS1034DG4 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 SN74ALS1034DG4 reliable?
The price and inventory of SN74ALS1034DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALS1034DG4 is usually 5 days.
3.What payment methods are accepted for SN74ALS1034DG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALS1034DG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ALS1034DG4?
SN74ALS1034DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ALS1034DG4 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 SN74ALS1034DG4?
For technical support, including SN74ALS1034DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALS1034DG4 requirements.
6.How does Aetrix verify that SN74ALS1034DG4 is sourced from the original manufacturer or authorized distributors?
All SN74ALS1034DG4 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 SN74ALS1034DG4 meets industry standards.
7.What is the process for return or replacement of SN74ALS1034DG4?
All SN74ALS1034DG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALS1034DG4, 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 SN74ALS1034DG4 part is unused and in its original packaging.
Return procedure for SN74ALS1034DG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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