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Texas Instruments SN74ABT241ADW
- Part No.:
- SN74ABT241ADW
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SN74ABT241ADW.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:673
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Product details
Overview
SN74ABT241ADW from Texas Instruments is an octal noninverting buffer/driver with 3-state outputs, designed for memory address and bus-oriented applications. It operates from 4.5 V to 5.5 V, delivers ±32 mA/±64 mA output drive, features 2.6 ns typical propagation delay (tPLH), and is rated for –40°C to 85°C industrial temperature range in SOIC-20 (DW) package.
For engineers reviewing the SN74ABT241ADW datasheet, SN74ABT241ADW pinout, SN74ABT241ADW application, or SN74ABT241ADW equivalent, key selection criteria include high-drive 3-state bus interface capability, ground-bounce performance (<1 V VOLP), latch-up immunity (>500 mA), and compatibility with TTL-level control signals in dense PCB layouts.
Technical Context
This device implements dual 4-bit noninverting buffers with independent active-low 3-state enable inputs (1OE and 2OE). Each section drives four outputs (1Y1–1Y4 and 2Y1–2Y4) from corresponding inputs (1A1–1A4 and 2A1–2A4), supporting bidirectional bus isolation and clock distribution.
Its EPIC-IIB BiCMOS process enables low power dissipation while maintaining TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V) and rail-to-rail output swing under heavy load (VOL = 0.55 V at 64 mA IOL, VOH = 2 V at –32 mA IOH).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures robust operation across standard 5 V supply tolerances in industrial systems. |
| IOH / IOL | –32 mA / +64 mA - Supports direct driving of multiple TTL loads or termination-resistor networks without external buffers. |
| tPLH / tPHL | 1 ns (min) to 4.6 ns (max) at 5 V - Enables reliable timing in high-speed address/data buses up to ~200 MHz toggle rate. |
| VOLP (Ground Bounce) | <1 V at VCC = 5 V, TA = 25°C - Reduces noise coupling into adjacent signal lines during simultaneous output switching. |
| ESD Rating | 2000 V HBM, 200 V MM - Meets MIL-STD-883 requirements for handling in automated assembly environments. |
| Latch-Up Immunity | >500 mA per JEDEC JESD17 - Prevents destructive latch-up during transient overvoltage events on I/O pins. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded control, instrumentation, and communications equipment. |
Pinout & Package
SN74ABT241ADW is housed in a 20-pin SOIC (DW) package measuring 12.8 mm × 7.5 mm × 2.65 mm, with 1.27 mm lead pitch and gull-wing leads. RoHS-compliant, NIPDAU-plated terminations support lead-free reflow (MSL Level-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 19 | Active-low enable for Group 1 outputs (1Y1–1Y4) | Drives all four outputs high-impedance when logic high; requires pull-up resistor for power-up safety. |
| 2OE, 2 | Active-low enable for Group 2 outputs (2Y1–2Y4) | Independent control allows selective bus segmentation without affecting other data lanes. |
| 1A1–1A4, 2A1–2A4 (Pins 3,4,6,8,11,13,15,17) | Noninverting input channels | Directly pass logic states to respective outputs; TTL-compatible thresholds simplify interfacing with legacy controllers. |
| 1Y1–1Y4, 2Y1–2Y4 (Pins 18,16,14,12,9,7,5,3) | 3-state buffered outputs | High-drive capability supports fan-out to ≥10 TTL loads; outputs enter high-Z state within 5.4 ns (tPLZ max) of OE assertion. |
| VCC, 10 | Positive supply | Must be decoupled locally; thermal impedance θJA = 97°C/W limits continuous power dissipation to ~300 mW at 85°C ambient. |
| GND, 20 | Signal and power reference | Shared return path for all I/O and supply currents; layout must minimize inductance to suppress ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| High-Drive Outputs | –32 mA IOH and +64 mA IOL enable direct connection to unterminated transmission lines or multiple gate inputs without external drivers. |
| Low Ground Bounce | VOLP < 1 V ensures minimal voltage disturbance on shared GND planes during parallel output transitions, critical for signal integrity. |
| Robust Latch-Up Immunity | Exceeds 500 mA per JEDEC JESD17, allowing safe operation in noisy industrial environments with EFT/burst transients. |
| TTL-Compatible Interface | VIH = 2 V and VIL = 0.8 V match standard TTL logic families, eliminating level-shifting needs in mixed-technology systems. |
| Fast Enable/Disable Timing | tPZH/tPZL ≤ 6.8 ns and tPHZ/tPLZ ≤ 7.1 ns allow rapid bus arbitration and dynamic channel switching in real-time control loops. |
Applications
| Memory Address Buffering | Bus Transceiver Isolation |
|---|---|
Use Scenario: Driving 20-bit address lines from a microcontroller to SRAM or Flash memory in space-constrained industrial PLC modules. IC Role / Device Role / Timing Role: Noninverting octal buffer providing current gain and 3-state isolation between CPU and memory subsystems during DMA cycles. Use Value: Eliminates need for discrete transistor arrays; 64 mA sink capability handles memory chip input capacitance and line termination simultaneously. | Use Scenario: Bidirectional data bus isolation between two FPGA domains operating at different voltage or timing domains in test equipment backplanes. IC Role / Device Role / Timing Role: Dual-group 3-state driver enabling controlled handshaking via independent OE signals to prevent bus contention. Use Value: Independent 1OE/2OE control permits asymmetric read/write timing margins and eliminates external direction-control logic. |
| Clock Distribution Network | Legacy Peripheral Interface |
Use Scenario: Fan-out of a 50 MHz system clock to multiple ASICs and ADCs in medical imaging front-end electronics. IC Role / Device Role / Timing Role: Low-skew, high-drive buffer minimizing jitter accumulation and ensuring setup/hold compliance across distributed loads. Use Value: 2.6 ns typical tPLH and sub-1 V ground bounce preserve clock edge integrity across 8 downstream receivers. | Use Scenario: Interfacing modern microcontrollers with legacy parallel peripherals (e.g., dot-matrix LCD controllers, ISA-style I/O expanders) requiring TTL-level drive strength. IC Role / Device Role / Timing Role: Level- and drive-strength translator bridging 3.3 V MCU GPIOs to 5 V peripheral buses with guaranteed VIH/VIL margins. Use Value: TTL-compatible inputs accept 3.3 V logic highs directly; 64 mA sink current drives heavy capacitive loads of older peripheral inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT240ADW | Inverting outputs (vs. noninverting); identical pinout, drive strength, and timing specs. | Required where signal polarity inversion is needed in bus control logic or complement generation. | Select when logic function demands inversion; otherwise, SN74ABT241ADW provides direct signal pass-through. |
| SN74LVC244APWR | Lower VCC range (1.65–3.6 V); CMOS process; 24 mA drive; 3.3 V only; smaller TSSOP-20 package. | Suitable for low-voltage portable systems but incompatible with 5 V buses or legacy TTL interfaces. | Choose only for 3.3 V-only designs; not a drop-in replacement due to voltage and drive mismatch. |
Compared with SN74ABT240ADW (inverting) and SN74LVC244APWR (low-voltage CMOS), SN74ABT241ADW uniquely combines 5 V TTL compatibility, noninverting logic, and high-current drive in a standard SOIC-20 footprint-making it optimal for industrial bus buffering where signal integrity and interoperability are critical.
Availability
SN74ABT241ADW is available at Aetrix Electronics and suitable for industrial control systems, test equipment backplanes, and legacy peripheral interfaces requiring stable component supply and long-term manufacturing continuity.
Supply support for SN74ABT241ADW 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 90 years of innovation in industrial, automotive, and communications markets.
The ABT logic family-including SN74ABT241ADW-is engineered for high-speed, high-drive 3-state bus interface applications in industrial and military-grade systems demanding robustness, speed, and noise immunity.
FAQ
What is the maximum output current rating for SN74ABT241ADW?
The SN74ABT241ADW supports –32 mA high-level output current (IOH) and +64 mA low-level output current (IOL) per output pin under recommended operating conditions. These values are specified at VCC = 4.5 V and ensure reliable drive into heavy TTL loads or terminated transmission lines without exceeding thermal limits in the SOIC-20 package.
Does SN74ABT241ADW require external pull-up resistors on its enable inputs?
Yes - to guarantee high-impedance outputs during power-up or power-down, SN74ABT241ADW's 1OE and 2OE pins should be tied to VCC via pull-up resistors. The minimum resistance value depends on the current-sinking capability of the driving source; TI recommends evaluating system-level reset sequencing to avoid bus contention before firmware initializes the enable signals.
Can SN74ABT241ADW operate reliably at 5.5 V supply?
Yes - SN74ABT241ADW is fully characterized for VCC up to 5.5 V per its recommended operating conditions. Electrical parameters including VOH (≥2.0 V at –32 mA), VOL (≤0.55 V at 64 mA), and timing (tPLH/tPHL) remain valid across the full 4.5 V–5.5 V range, making it suitable for systems with loosely regulated 5 V rails or battery-backed supplies.
What is the thermal performance of SN74ABT241ADW in its SOIC-20 (DW) package?
The SN74ABT241ADW in SOIC-20 (DW) package has a junction-to-ambient thermal resistance (θJA) of 97°C/W. At maximum rated IOL = 64 mA per output and worst-case ambient temperature (85°C), total power dissipation remains within safe limits (~300 mW), provided adequate PCB copper area and airflow are maintained per TI's layout guidelines.
How does SN74ABT241ADW handle input signals during power-down?
During power-down (VCC = 0 V), SN74ABT241ADW exhibits low Ioff (±100 µA) and high-impedance outputs, preventing back-driving of upstream logic. Input clamping diodes limit VI to –0.5 V to 7 V, and the device maintains latch-up immunity per JESD17 even with floating inputs - though TI recommends tying unused inputs to VCC or GND to avoid noise-induced switching.
SN74ABT241ADW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
SN74ABT241ADW FAQ
1.How can I place an order for SN74ABT241ADW through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT241ADW 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 SN74ABT241ADW reliable?
The price and inventory of SN74ABT241ADW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT241ADW is usually 5 days.
3.What payment methods are accepted for SN74ABT241ADW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT241ADW transactions.
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4.How is shipping managed for SN74ABT241ADW?
SN74ABT241ADW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT241ADW 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 SN74ABT241ADW?
For technical support, including SN74ABT241ADW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT241ADW requirements.
6.How does Aetrix verify that SN74ABT241ADW is sourced from the original manufacturer or authorized distributors?
All SN74ABT241ADW 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 SN74ABT241ADW meets industry standards.
7.What is the process for return or replacement of SN74ABT241ADW?
All SN74ABT241ADW units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT241ADW, 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 SN74ABT241ADW part is unused and in its original packaging.
Return procedure for SN74ABT241ADW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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