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Texas Instruments SN74AS1034ADR
- Part No.:
- SN74AS1034ADR
- Manufacturer:
- Texas Instruments
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN74AS1034ADR.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,610
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Product details
Overview
SN74AS1034ADR from Texas Instruments is a hex noninverting buffer/driver IC designed for high-current digital signal distribution in industrial control and legacy TTL-compatible systems. It delivers ±48 mA output drive, 6 ns typical propagation delay (VCC = 5 V, CL = 50 pF), and operates across 0°C to 70°C. Used in bus buffering, line driving, and logic-level translation where robust capacitive-load handling is required.
For engineers reviewing the SN74AS1034ADR datasheet, SN74AS1034ADR pinout, SN74AS1034ADR application, or SN74AS1034ADR equivalent, this page provides verified electrical specs, SOIC-14 package details, functional role in TTL-driven systems, and validated alternative options for sourcing continuity and design flexibility.
Technical Context
The SN74AS1034ADR implements six independent totem-pole output buffers with no internal 3-state control - all outputs are always active. Its AS-family silicon enables higher speed and stronger drive than ALS variants, with guaranteed tPLH/tPHL ≤ 6 ns under 50-pF load conditions.
It requires a single 5-V supply (4.5–5.5 V), accepts standard TTL input thresholds (VIL ≤ 0.8 V, VIH ≥ 2 V), and sources/sinks up to 48 mA per output while maintaining VOH ≥ 2 V and VOL ≤ 0.5 V. Not recommended for operation above 40 MHz due to timing and thermal constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Y = A (six independent noninverting buffers) |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5-V TTL/CMOS rails |
| Output Drive Capability | ±48 mA per channel - drives heavy capacitive loads (e.g., >100 pF) without external amplification |
| Propagation Delay | ≤6 ns (max, A to Y, CL = 50 pF) - supports sub-40-MHz digital timing margins |
| Operating Temperature | 0°C to 70°C - commercial-grade qualification for industrial and instrumentation use |
| Input Compatibility | TTL-level inputs (VIH ≥ 2 V, VIL ≤ 0.8 V) - direct interface with 74LS/74F/older microcontrollers |
| Package Type | SOIC-14 (D package), 3.90 mm width, RoHS-compliant NIPDAU finish |
Pinout & Package
SN74AS1034ADR uses a 14-pin small-outline integrated circuit (SOIC) package with 1.27-mm pitch, 3.90-mm body width, and 1.75-mm max height. Pin 1 is marked by a beveled corner or dot; device is oriented with pin 1 at top-left when notch or marking faces upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A, 5A, 6A | Input | Independent TTL-compatible logic inputs for each of six buffers |
| 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Output | Active-high, totem-pole buffered outputs - no enable/disable control |
| VCC | Power Supply | Positive supply terminal (4.5–5.5 V); must be decoupled locally |
| GND | Ground Reference | Return path for all inputs, outputs, and supply current |
Key Features
| Feature | Design Value |
|---|---|
| High-output-current drive | ±48 mA per channel - eliminates need for discrete transistor buffers in bus-driving applications |
| Low propagation delay | 6 ns max (A→Y) - preserves timing integrity in fast TTL-based control loops |
| TTL-input compatibility | VIL ≤ 0.8 V, VIH ≥ 2 V - ensures reliable interfacing with legacy 74-series logic and microcontroller GPIO |
| Robust output voltage swing | VOH ≥ 2 V at −48 mA, VOL ≤ 0.5 V at +48 mA - maintains noise margin under full load |
| SOIC-14 RoHS packaging | NIPDAU lead finish, MSL Level-1 - supports automated SMT assembly without moisture sensitivity concerns |
Applications
| Industrial Bus Buffering | Legacy System Signal Amplification |
|---|---|
Use Scenario: Driving long PCB traces or multi-drop parallel buses (e.g., address/data lines in PLC backplanes) subject to >80 pF total capacitance. IC Role / Device Role / Timing Role: Noninverting buffer providing current gain and waveform sharpening between TTL source and distributed load. Use Value: Maintains signal edge rate and logic threshold margins without external transistors, reducing BOM count and layout complexity. |
Use Scenario: Interfacing modern microcontrollers with vintage peripherals requiring higher drive strength (e.g., LED arrays, relay drivers, or older memory modules). IC Role / Device Role / Timing Role: Logic-level translator and current booster, converting weak GPIO outputs into robust TTL-compatible signals. Use Value: Enables drop-in replacement of discrete driver stages while preserving timing behavior and simplifying firmware I/O mapping. |
| Test Equipment Output Stage | Digital Panel Interface Driver |
Use Scenario: Generating calibrated digital stimulus waveforms in benchtop test gear where output impedance and rise/fall time must remain stable across varying loads. IC Role / Device Role / Timing Role: Final-stage buffer isolating internal logic from variable external termination and cable capacitance. Use Value: Delivers consistent 6 ns propagation delay and <10% overshoot even into 50-Ω or 100-pF loads - critical for repeatability in calibration workflows. |
Use Scenario: Driving multiplexed 7-segment displays or indicator LEDs on industrial HMI panels where multiple segments activate simultaneously. IC Role / Device Role / Timing Role: Parallel-output current amplifier ensuring uniform brightness and simultaneous segment update. Use Value: Sinks up to 48 mA per segment without thermal derating - eliminates need for individual current-limiting resistors or external FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALS1034DR | Lower drive (±24 mA), slower delay (8 ns max), lower ICC (14 mA max) | Better suited for low-power, noise-sensitive environments; insufficient for >60 pF loads | Select when power efficiency and EMI reduction outweigh speed and drive needs |
| SN74F1034N | F-family: 10 ns max delay, ±20 mA drive, higher ICC (25 mA), PDIP-only packaging | Limited to through-hole assembly; unsuitable for high-density SMT layouts | Choose only for legacy repair or prototyping where SOIC footprint is unavailable |
Compared with SN74ALS1034DR and SN74F1034N, the SN74AS1034ADR uniquely balances high-speed performance (6 ns), strong drive (±48 mA), and modern SOIC packaging - making it the optimal choice for new industrial designs requiring both legacy compatibility and compact assembly.
Availability
SN74AS1034ADR is available at Aetrix Electronics and suitable for industrial control systems, test equipment interfaces, and legacy system upgrades requiring stable component supply, long-term obsolescence mitigation, and RoHS-compliant SMT logistics.
Supply support for SN74AS1034ADR 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 specializing in analog, embedded processing, and logic solutions with over 50 years of industrial-grade reliability validation.
The SN74AS1034ADR belongs to TI's advanced Schottky (AS) logic family, engineered specifically for high-drive, low-delay digital interfacing in mission-critical industrial and instrumentation applications.
FAQ
What is the maximum operating frequency supported by the SN74AS1034ADR?
The SN74AS1034ADR is not characterized for clocked operation but supports signal propagation up to approximately 40 MHz in practical bus-buffering applications. Its 6 ns max propagation delay and specified timing limits indicate suitability for asynchronous or low-frequency synchronous interfaces - not for continuous high-speed clock distribution. Always verify setup/hold timing margins in your specific load configuration before deploying SN74AS1034ADR in frequency-critical paths.
Does the SN74AS1034ADR support 3-state or tri-state outputs?
No, the SN74AS1034ADR does not include 3-state capability. All six outputs are permanently enabled totem-pole drivers with no output-enable (OE) pin or internal disable function. If bus-sharing or bidirectional operation is required, an external 3-state buffer (e.g., SN74AS244) must be used instead of SN74AS1034ADR.
Can the SN74AS1034ADR operate from a 3.3-V supply?
No, the SN74AS1034ADR is specified only for 4.5 V to 5.5 V operation. Applying 3.3 V will result in undefined logic thresholds, degraded noise margins, and failure to meet output voltage or drive specifications. For 3.3-V systems, consider TI's SN74LVC1G17 or similar LVC-family buffers instead of SN74AS1034ADR.
What is the thermal resistance (θJA) of the SN74AS1034ADR in SOIC-14 package?
The SN74AS1034ADR datasheet does not specify θJA for the SOIC-14 (D) package. However, based on TI's standard SOIC-14 thermal characterization, typical θJA is ~120°C/W with JEDEC-standard 2-layer board layout. Under worst-case full-load conditions (6 × 48 mA), junction temperature rise remains within safe limits below 70°C ambient - confirming SN74AS1034ADR's suitability for convection-cooled industrial enclosures.
Is the SN74AS1034ADR pin-compatible with the SN74ALS1034DR?
Yes, the SN74AS1034ADR and SN74ALS1034DR share identical SOIC-14 pinouts, logic functions, and supply requirements. They differ only in drive strength, speed, and current consumption - making SN74AS1034ADR a direct functional upgrade in existing designs where higher performance is needed without PCB revision.
SN74AS1034ADR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AS
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 6
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Logic
- Current - Output High, Low:
- 48mA, 48mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
SN74AS1034ADR FAQ
1.How can I place an order for SN74AS1034ADR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AS1034ADR 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 SN74AS1034ADR reliable?
The price and inventory of SN74AS1034ADR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AS1034ADR is usually 5 days.
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SN74AS1034ADR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AS1034ADR 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 SN74AS1034ADR?
For technical support, including SN74AS1034ADR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AS1034ADR requirements.
6.How does Aetrix verify that SN74AS1034ADR is sourced from the original manufacturer or authorized distributors?
All SN74AS1034ADR 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 SN74AS1034ADR meets industry standards.
7.What is the process for return or replacement of SN74AS1034ADR?
All SN74AS1034ADR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AS1034ADR, 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 SN74AS1034ADR part is unused and in its original packaging.
Return procedure for SN74AS1034ADR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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