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Texas Instruments SN74ACT241DBLE
- Part No.:
- SN74ACT241DBLE
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
SN74ACT241DBLE.pdf
- Description:
- BUS DRIVER, ACT SERIES, 4-BIT,
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
SN74ACT241DBLE from Texas Instruments is an octal noninverting buffer/driver with dual 3-state outputs, designed for memory address and bus interface applications. It operates from 4.5 V to 5.5 V, supports TTL-compatible inputs, delivers ≤8.5 ns propagation delay at 5 V, and features independent output-enable controls (1OE, 2OE) for flexible bus management in industrial control and embedded systems.
For engineers reviewing the SN74ACT241DBLE datasheet, SN74ACT241DBLE pinout, SN74ACT241DBLE application, or SN74ACT241DBLE equivalent, key selection criteria include 3-state bus isolation capability, 24-mA drive strength, SSOP-20 package compatibility, and guaranteed operation across −40°C to 85°C ambient temperature.
Technical Context
The SN74ACT241DBLE implements two independent 4-bit noninverting buffer sections, each with complementary output-enable logic: low on 1OE enables Group 1 (1A1–1A4 → 1Y1–1Y4), high on 2OE enables Group 2 (2A1–2A4 → 2Y1–2Y4). Outputs enter high-impedance state when 1OE is high *or* 2OE is low.
Its ACT logic family ensures TTL-level input compatibility while maintaining CMOS-level noise immunity and rail-to-rail output swing. Input voltage tolerance extends to 5.5 V regardless of VCC, enabling mixed-voltage interfacing without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures stable operation under industrial power rail variation and brownout conditions. |
| tpd (Max) | 8.5 ns at 5 V - Enables reliable timing in 100-MHz bus cycles with margin for trace delays. |
| IOH/IOL | ±24 mA - Drives standard TTL loads or multiple CMOS inputs without external buffering. |
| Input Compatibility | TTL - Interfaces directly with legacy 74LS/74F logic without pull-up resistors or translators. |
| VIH/VIL | 2.0 V / 0.8 V - Provides robust noise margins (>0.4 V) in electrically noisy environments. |
| Output State Control | Independent 1OE/2OE - Allows selective tri-stating of either 4-bit group for bidirectional data arbitration. |
Pinout & Package
SN74ACT241DBLE uses a 20-pin SSOP (Shrink Small-Outline Package) with 0.65-mm lead pitch, 7.5-mm body width, and 2.65-mm max height - optimized for high-density PCB layouts while maintaining hand-solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low and active-high enable inputs respectively - permit asymmetric bus arbitration control logic. |
| 2–5, 13–16 | 1A1–1A4, 2A1–2A4 | Noninverting data inputs - accept TTL/CMOS logic levels up to 5.5 V independent of VCC. |
| 6–9, 11–14 | 1Y1–1Y4, 2Y1–2Y4 | 3-state buffered outputs - present high-Z state when disabled, eliminating bus contention. |
| 10 | GND | Ground reference - must be low-impedance connection to minimize switching noise coupling. |
| 20 | VCC | Power supply - requires local 0.1-μF ceramic decoupling adjacent to pin for transient current delivery. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state groups | Enables split-bus architectures where separate address/data lanes require independent enable timing. |
| Input overvoltage tolerance | Accepts up to 5.5 V inputs even at VCC = 4.5 V - eliminates need for external clamping in mixed-supply systems. |
| High noise immunity | ACT family's 1.2-V input hysteresis prevents false triggering on slow or noisy edges. |
| Low power consumption | ICC ≤ 40 μA at 5.5 V - reduces standby current in battery-backed or energy-sensitive subsystems. |
| Thermal performance | θJA = 70°C/W in DB package - supports continuous operation at full drive strength up to 85°C ambient. |
Applications
| Memory Address Buffering | Industrial Bus Transceiver |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or EPROM devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting buffer with 3-state outputs isolates address drivers during memory read/write cycles to prevent contention. Use Value: 8.5 ns tpd ensures setup/hold timing compliance with 100-MHz CPU buses; ±24 mA drive sustains signal integrity over 15-cm traces. | Use Scenario: Interfacing PLC I/O modules to a backplane with hot-swap capability and fault isolation. IC Role / Device Role / Timing Role: Bidirectional bus driver enabling controlled data flow between master and slave nodes via OE-controlled direction gating. Use Value: Independent 1OE/2OE allows simultaneous enable of input receivers and output drivers during handshaking, reducing protocol overhead. |
| Legacy System Interface | Test Equipment Signal Conditioning |
Use Scenario: Adapting modern FPGA I/O (3.3 V LVTTL) to legacy 5-V TTL peripherals in retrofitted instrumentation. IC Role / Device Role / Timing Role: Level-tolerant buffer translating logic levels while preserving timing integrity and fanout capacity. Use Value: 5.5-V input tolerance accepts 5-V signals directly; 24-mA drive compensates for capacitive loading of long ribbon cables. | Use Scenario: Isolating DUT signal paths in automated test fixtures to prevent cross-talk and ground loops. IC Role / Device Role / Timing Role: 3-state gate controlling signal routing between stimulus sources and measurement channels. Use Value: High-Z state eliminates loading during channel switching; low 8.5 ns delay preserves edge fidelity for 100-MHz digital pattern generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT244DBR | Octal noninverting buffer with *two* active-low OE inputs (vs. SN74ACT241DBLE's mixed-polarity OE). | Requires inverted enable logic; less flexible for asymmetric bus arbitration. | Choose when system control logic naturally provides active-low enables for both groups. |
| SN74LVC244APWR | 3.3-V only operation (1.65–3.6 V); lower drive (24 mA @ 3.3 V); no 5.5-V input tolerance. | Not suitable for 5-V legacy interfaces or mixed-voltage domains without level translation. | Prefer for new 3.3-V-only designs prioritizing lower power and smaller TSSOP footprint. |
Compared with SN74ACT241DBLE, SN74ACT244DBR offers identical voltage and timing specs but requires redesign of enable logic polarity, while SN74LVC244APWR reduces power and size at the cost of 5-V interoperability and input overvoltage resilience.
Availability
SN74ACT241DBLE is available at Aetrix Electronics and suitable for industrial automation, legacy system upgrades, and test equipment requiring stable component supply with long-term lifecycle support.
Supply support for SN74ACT241DBLE 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 for industrial, automotive, and communications markets.
The SN74ACT241DBLE belongs to TI's ACT-series advanced CMOS logic family, engineered for high-speed, low-noise bus interfacing in mission-critical industrial and instrumentation systems.
FAQ
What is the operating temperature range for SN74ACT241DBLE?
The SN74ACT241DBLE is rated for operation from −40°C to +85°C ambient temperature, making it suitable for industrial control cabinets, factory-floor equipment, and outdoor-deployed instrumentation where thermal extremes occur. This range is confirmed in the recommended operating conditions table of the official TI datasheet SCAS516C.
Does SN74ACT241DBLE support 3.3-V input logic levels?
Yes, SN74ACT241DBLE accepts 3.3-V logic inputs reliably because its VIH threshold is 2.0 V (min) and VIL is 0.8 V (max) at VCC = 4.5–5.5 V. A 3.3-V high signal exceeds VIH by >1.3 V margin, ensuring noise-immune recognition without level shifting.
Can SN74ACT241DBLE be used with a 3.3-V power supply?
No, SN74ACT241DBLE requires a minimum VCC of 4.5 V and is not specified for 3.3-V operation. Attempting to power it at 3.3 V will result in undefined logic behavior, excessive ICC, and potential output instability. Use SN74LVC244APWR instead for true 3.3-V systems.
What is the maximum output current per pin for SN74ACT241DBLE?
SN74ACT241DBLE guarantees ±24 mA DC output current per Y pin under recommended operating conditions (VCC = 4.5–5.5 V, TA = −40°C to 85°C), as specified in the electrical characteristics table. This rating supports driving multiple TTL loads or longer PCB traces without signal degradation.
Is SN74ACT241DBLE pin-compatible with SN74ACT244DBR?
Yes, SN74ACT241DBLE and SN74ACT244DBR share identical 20-pin SSOP (DB) package dimensions, pin count, and pinout layout - including VCC (pin 20), GND (pin 10), and all A/Y/OE assignments. However, their output-enable logic polarity differs, requiring firmware or schematic adjustment.
SN74ACT241DBLE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SN74ACT241DBLE FAQ
1.How can I place an order for SN74ACT241DBLE through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ACT241DBLE 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 SN74ACT241DBLE reliable?
The price and inventory of SN74ACT241DBLE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ACT241DBLE is usually 5 days.
3.What payment methods are accepted for SN74ACT241DBLE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ACT241DBLE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ACT241DBLE?
SN74ACT241DBLE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ACT241DBLE 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 SN74ACT241DBLE?
For technical support, including SN74ACT241DBLE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ACT241DBLE requirements.
6.How does Aetrix verify that SN74ACT241DBLE is sourced from the original manufacturer or authorized distributors?
All SN74ACT241DBLE 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 SN74ACT241DBLE meets industry standards.
7.What is the process for return or replacement of SN74ACT241DBLE?
All SN74ACT241DBLE units undergo pre-shipment inspection (PSI). If there is an issue with SN74ACT241DBLE, 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 SN74ACT241DBLE part is unused and in its original packaging.
Return procedure for SN74ACT241DBLE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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