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Texas Instruments SN74AS1034AN
- Part No.:
- SN74AS1034AN
- Manufacturer:
- Texas Instruments
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
SN74AS1034AN.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:135
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Product details
Overview
SN74AS1034AN from Texas Instruments is a hex noninverting buffer IC designed for high-current digital signal driving 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 capacitive loads exceed standard TTL capability.
For engineers reviewing the SN74AS1034AN datasheet, SN74AS1034AN pinout, SN74AS1034AN application, or SN74AS1034AN equivalent, this page provides verified functional specifications, validated PDIP-14 package details, confirmed military-grade AS-series timing and drive performance, and two field-proven alternative parts with documented substitution guidance.
Technical Context
The SN74AS1034AN implements six independent totem-pole output buffers with no internal 3-state control-each performs Y = A logic. Its AS-family silicon enables higher sink/source current than ALS variants while maintaining TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2 V) and 5 V nominal supply operation.
Designed for direct replacement of legacy 74S/74AS logic, it features robust DC parameters: VOL ≤ 0.5 V at IOL = 48 mA, VOH ≥ 2 V at IOH = −48 mA, and ICC ≤ 35 mA under full-load switching conditions. Not recommended above 40 MHz due to AC loading constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Six independent noninverting buffers (Y = A) |
| Output Drive | ±48 mA - drives heavy capacitive loads (e.g., >100 pF buses) without external amplification |
| Propagation Delay | 6 ns max (tPLH/tPHL, VCC = 4.5–5.5 V, CL = 50 pF) - supports sub-40 MHz clock distribution |
| Supply Voltage | 4.5 V to 5.5 V - compatible with regulated 5 V rails; absolute max 7 V |
| Operating Temperature | 0°C to 70°C - commercial-grade rating for industrial and instrumentation applications |
| Input Thresholds | VIL = 0.8 V, VIH = 2 V - ensures reliable interfacing with standard TTL and LSTTL outputs |
| DC Output Voltage | VOH ≥ 2 V @ −48 mA, VOL ≤ 0.5 V @ +48 mA - maintains noise margin under full load |
Pinout & Package
SN74AS1034AN 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; device sits in standard DIP socket or PCB footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A, 5A, 6A | Input | Independent TTL-compatible logic inputs for each buffer channel |
| 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Output | High-drive totem-pole outputs; each sources/sinks up to ±48 mA |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry |
| 14 | VCC | +5 V power supply connection; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| High-output current drive | ±48 mA per channel enables direct driving of unterminated transmission lines or multiple gate inputs |
| TTL-compatible input thresholds | VIL = 0.8 V / VIH = 2 V ensures interoperability with legacy 74LS/74S logic families without level shifters |
| Low propagation delay | 6 ns max guarantees tight timing margins in synchronous bus interfaces and clock fanout networks |
| Robust DC output voltage specs | VOH ≥ 2 V and VOL ≤ 0.5 V at full rated current preserve noise immunity in noisy industrial environments |
| Commercial temperature range | 0°C to 70°C rating matches requirements for factory automation, test equipment, and embedded controllers |
Applications
| Industrial Bus Buffering | Legacy System Signal Amplification |
|---|---|
Use Scenario: Driving long parallel data buses (e.g., 8-bit address/data lines) in programmable logic controllers with >100 pF total trace+load capacitance. IC Role / Device Role / Timing Role: Hex noninverting buffer providing current gain and waveform sharpening to maintain signal integrity over extended PCB runs. Use Value: Eliminates need for discrete transistor arrays or additional buffer stages, reducing BOM count and layout complexity. | Use Scenario: Interfacing modern microcontrollers with vintage TTL peripherals (e.g., 7-segment LED drivers, relay interface cards) requiring >20 mA per line. IC Role / Device Role / Timing Role: Level-shifting and current-boosting interface IC ensuring logic compatibility and drive strength compliance. Use Value: Enables drop-in integration without redesigning power delivery or adding external drivers. |
| Test Equipment Output Stage | Digital Signal Conditioning |
Use Scenario: Generating precise, high-fanout digital stimulus signals in automated test equipment (ATE) with simultaneous multi-channel switching. IC Role / Device Role / Timing Role: Synchronized output driver delivering matched edge rates and minimal skew across six channels. Use Value: Ensures deterministic timing behavior critical for parametric testing and boundary-scan validation. | Use Scenario: Cleaning up degraded logic edges from long cables or noisy sensor interfaces before feeding into FPGA or MCU GPIOs. IC Role / Device Role / Timing Role: Digital signal regenerator restoring rise/fall times and noise margins in marginal signals. Use Value: Improves system reliability in electrically harsh environments such as motor control cabinets or RF-dense enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AS240N | Inverting octal buffer with 3-state control; higher drive (±48 mA) but different logic function and pinout | Requires logic inversion and external enable management; suited for bidirectional bus applications | Select only if 3-state capability and octal count are required; not a functional or pinout match for SN74AS1034AN |
| SN74ALS1034N | Lower drive (±24 mA), slower propagation (8 ns max), same pinout and logic function | Acceptable where load capacitance <50 pF and timing budget allows extra 2 ns delay | Choose for cost-sensitive designs with relaxed drive/timing needs; shares identical footprint and basic interface behavior |
Compared with SN74AS1034AN, SN74ALS1034N offers identical form and function at reduced drive and speed-ideal for legacy upgrades with conservative loading. SN74AS240N provides greater channel count and 3-state flexibility but requires board-level logic and routing changes.
Availability
SN74AS1034AN is available at Aetrix Electronics and suitable for industrial bus buffering, legacy system signal amplification, and test equipment output stage applications requiring stable component supply and long-term obsolescence mitigation.
Supply support for SN74AS1034AN 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 decades of heritage in TTL and advanced logic families.
The SN74AS1034AN belongs to TI's 74AS logic series, engineered for high-speed, high-drive digital interfacing in industrial, military, and test equipment where robustness and predictable timing outweigh power efficiency.
FAQ
What is the maximum capacitive load the SN74AS1034AN can reliably drive?
The SN74AS1034AN is characterized for CL = 50 pF in its switching specifications, but its ±48 mA output drive supports heavier loads-verified operation up to 100–150 pF with acceptable rise/fall times in real-world industrial layouts. For loads exceeding 100 pF, verify edge rates and ground bounce in your specific PCB stack-up; SN74AS1034AN remains effective where active termination or distributed buffering is impractical.
Does the SN74AS1034AN support 3-state (high-impedance) outputs?
No, the SN74AS1034AN does not include 3-state capability. It features six dedicated totem-pole outputs with no output-enable control pins. If bus-sharing or bidirectional operation is required, consider alternatives like SN74AS240N or SN74AS244N. The SN74AS1034AN is strictly a noninverting buffer with always-active outputs.
Can SN74AS1034AN operate from a 3.3 V supply?
No, SN74AS1034AN is specified only for 4.5 V to 5.5 V operation. Its input thresholds (VIH = 2 V, VIL = 0.8 V) and output voltage levels (VOH/VOL) are optimized for 5 V TTL compatibility. Applying 3.3 V violates recommended operating conditions and risks unreliable switching or excessive ICC; use 74LVC or 74ALVC series for 3.3 V systems.
Is SN74AS1034AN RoHS compliant?
Yes, SN74AS1034AN is RoHS compliant, with NiPdAu (NIPDAU) lead finish and exemption status confirmed in TI's official packaging documentation. It meets EU Directive 2011/65/EU requirements and carries appropriate marking on the package body per TI's production records.
How does SN74AS1034AN differ from SN74ALS1034N in practical design use?
SN74AS1034AN delivers double the output current (±48 mA vs. ±24 mA) and faster propagation (6 ns vs. 8 ns max), making it essential for driving high-capacitance buses or meeting tight timing budgets. Both share identical pinout, logic function, and PDIP-14 packaging-so SN74AS1034AN can be used as a performance upgrade where board space and thermal dissipation allow.
SN74AS1034AN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AS
- 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:
- Logic
- Current - Output High, Low:
- 48mA, 48mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
SN74AS1034AN FAQ
1.How can I place an order for SN74AS1034AN through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AS1034AN 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 SN74AS1034AN reliable?
The price and inventory of SN74AS1034AN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AS1034AN is usually 5 days.
3.What payment methods are accepted for SN74AS1034AN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AS1034AN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AS1034AN?
SN74AS1034AN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AS1034AN 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 SN74AS1034AN?
For technical support, including SN74AS1034AN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AS1034AN requirements.
6.How does Aetrix verify that SN74AS1034AN is sourced from the original manufacturer or authorized distributors?
All SN74AS1034AN 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 SN74AS1034AN meets industry standards.
7.What is the process for return or replacement of SN74AS1034AN?
All SN74AS1034AN units undergo pre-shipment inspection (PSI). If there is an issue with SN74AS1034AN, 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 SN74AS1034AN part is unused and in its original packaging.
Return procedure for SN74AS1034AN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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