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Texas Instruments SN74ABT241ADWRE4
- Part No.:
- SN74ABT241ADWRE4
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SN74ABT241ADWRE4.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,262
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Product details
Overview
SN74ABT241ADWRE4 from Texas Instruments is an octal noninverting buffer/driver with 3-state outputs, designed for memory address and bus-oriented applications. It operates at 4.5–5.5 V, delivers ±32 mA high-drive outputs, supports –40°C to 85°C industrial temperature range, and uses SOIC-20 (DW) package with 100% Pb-free NiPdAu lead finish.
For engineers reviewing the SN74ABT241ADWRE4 datasheet, SN74ABT241ADWRE4 pinout, SN74ABT241ADWRE4 application, or SN74ABT241ADWRE4 equivalent, key selection criteria include 3-state bus isolation capability, TTL-compatible input thresholds, output ground bounce <1 V, and compatibility with 5-V logic systems requiring high sink/source drive strength.
Technical Context
This device implements two independent 4-bit noninverting buffer sections, each controlled by a dedicated active-low output-enable (OE) input. Each section drives four outputs simultaneously with symmetrical drive strength: –32 mA IOH and 64 mA IOL at VCC = 5 V.
It employs EPIC-IIB BiCMOS technology to reduce power dissipation while maintaining TTL-level input compatibility and fast switching: tPLH/tPHL ≤ 4.6 ns (CL = 50 pF), tPZH/tPZL ≤ 6.8 ns, and latch-up immunity exceeding 500 mA per JEDEC JESD-17.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - ensures stable operation across standard 5-V supply tolerances in industrial bus systems. |
| IOH / IOL | –32 mA / 64 mA - enables direct interface with multiple TTL loads or termination-resistor networks without external drivers. |
| Propagation Delay | tPLH/tPHL ≤ 4.6 ns - supports high-speed address/data buffering in 25+ MHz bus environments. |
| 3-State Enable Time | tPZH/tPZL ≤ 6.8 ns - guarantees rapid bus release for time-critical arbitration and multiplexing. |
| Input Thresholds | VIH = 2 V, VIL = 0.8 V - provides robust noise margin against TTL-compatible signal sources. |
| ESD Protection | 2000 V HBM, 200 V MM - meets industrial handling requirements without additional protection circuitry. |
| Operating Temperature | –40°C to +85°C - qualified for extended-life deployment in embedded control and communications equipment. |
Pinout & Package
SN74ABT241ADWRE4 is housed in a 20-pin SOIC (DW) package, 7.5 mm × 12.8 mm body, 1.27 mm pitch, 2.65 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output-enable inputs - independently disable Group 1 (pins 2–9) or Group 2 (pins 11–18) outputs to high-impedance state. |
| 2–5, 11–14 | 1A1–1A4, 2A1–2A4 | Noninverting data inputs - accept TTL-level signals; internally buffered before driving corresponding Y outputs. |
| 18, 16, 14, 12, 9, 7, 5, 3 | 1Y1–1Y4, 2Y1–2Y4 | 3-state noninverting outputs - drive bidirectional buses or memory address lines with high sink/source capability. |
| 10 | GND | Power ground reference - must be low-impedance connection to minimize ground bounce during simultaneous switching. |
| 20 | VCC | Positive supply - decoupling capacitor (0.1 µF ceramic) required within 1 cm of pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| High-Drive Outputs | –32 mA IOH / 64 mA IOL enables direct fanout to ≥10 standard TTL loads without buffers. |
| Low Ground Bounce | VOLP < 1 V at VCC = 5 V, TA = 25°C - reduces signal integrity risk in dense PCB layouts with shared ground planes. |
| BiCMOS Process | EPIC-IIB architecture cuts quiescent ICC to ≤250 µA (disabled) while retaining bipolar speed and CMOS input impedance. |
| Robust Latch-Up Immunity | Exceeds 500 mA per JEDEC JESD-17 - prevents destructive latch-up during hot-swap or ESD transients in backplane systems. |
| Dual Independent OE Control | Separate 1OE and 2OE pins allow selective enable/disable of two 4-bit groups - simplifies timing-critical bus partitioning in multi-master designs. |
Applications
| Memory Address Buffering | System Bus Transceiver Interface |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to SRAM or Flash memory in an industrial PLC. IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating CPU address bus from memory subsystem; enables clean address assertion during read/write cycles. Use Value: High sink/source drive ensures full logic swing under capacitive load; fast enable/disable supports burst-mode memory access with sub-5-ns timing margins. | Use Scenario: Interfacing between two asynchronous 8-bit data buses in a modular instrumentation system. IC Role / Device Role / Timing Role: Dual-group 3-state driver enabling bidirectional data flow control via independent OE signals. Use Value: Independent 1OE/2OE control allows precise handshaking between master/slave domains without bus contention or timing skew. |
| Microprocessor Peripheral Expansion | Legacy ISA Bus Driver |
Use Scenario: Expanding GPIO count on an ARM-based controller to drive LED arrays, relays, and status indicators. IC Role / Device Role / Timing Role: Octal buffer providing level-shifted, current-boosted outputs compatible with 5-V peripheral logic. Use Value: 64-mA sink capability directly drives LEDs or small solenoids; TTL input thresholds simplify integration with mixed-voltage MCU I/O. | Use Scenario: Replacing obsolete 74LS241 in retro-computing hardware restoration or legacy test equipment upgrades. IC Role / Device Role / Timing Role: Pin-compatible upgrade delivering higher drive strength and lower power than LS-family predecessors. Use Value: Maintains identical pinout and logic function while improving noise immunity, speed, and thermal margin in aging 5-V backplanes. |
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 |
|---|---|---|---|
| SN74ABT240ADWRE4 | Inverting output polarity per channel; otherwise identical electrical specs and pinout. | Required where bus inversion is needed for signal conditioning or protocol alignment (e.g., differential pair pre-driver). | Select when logic inversion is part of system-level signal path; verify downstream timing impact of added inversion delay. |
| SN74LVC241APWR | 3.3-V only operation (1.65–3.6 V); lower drive (–24/+24 mA); smaller TSSOP-20 package. | Suitable for modern low-voltage FPGA/CPU I/O expansion but incompatible with 5-V legacy buses. | Choose for new 3.3-V designs prioritizing space and power efficiency; not a drop-in replacement for 5-V systems. |
Compared with SN74ABT241ADWRE4, SN74ABT240ADWRE4 provides functional inversion without sacrificing drive or speed, while SN74LVC241APWR trades voltage compatibility and drive strength for reduced footprint and static power-making each suitable only in their respective voltage and logic-polarity domains.
Availability
SN74ABT241ADWRE4 is available at Aetrix Electronics and suitable for industrial control systems, legacy bus interface modules, and memory subsystems requiring stable component supply over extended production lifecycles.
Supply support for SN74ABT241ADWRE4 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 industrial-grade reliability validation.
The ABT logic family-including SN74ABT241ADWRE4-is engineered for high-speed, high-drive 5-V bus interfacing in mission-critical industrial, telecom, and computing infrastructure.
FAQ
What is the recommended power supply decoupling for SN74ABT241ADWRE4?
A 0.1-µF ceramic capacitor must be placed between VCC (pin 20) and GND (pin 10), located no more than 1 cm from the SN74ABT241ADWRE4 package. This minimizes supply noise and suppresses ground bounce during simultaneous output switching, especially critical given the SN74ABT241ADWRE4's 64-mA sink capability and fast edge rates.
Can SN74ABT241ADWRE4 operate at 3.3 V?
No. The SN74ABT241ADWRE4 is specified only for 4.5–5.5 V operation. At 3.3 V, VIH/VIL thresholds are unmet, output drive collapses, and DC parameters fall outside guaranteed limits. For 3.3-V systems, consider SN74LVC241APWR instead-but note it is not pin-compatible or functionally identical to the SN74ABT241ADWRE4.
How should unused inputs be handled on SN74ABT241ADWRE4?
All unused inputs-including 1A1–1A4, 2A1–2A4, 1OE, and 2OE-must be tied to a valid logic level (VCC or GND) to prevent floating states. Leaving them unconnected risks increased ICC, erratic output behavior, and potential damage due to undefined internal node voltages. This requirement is explicitly stated in the SN74ABT241ADWRE4 datasheet's recommended operating conditions.
Is SN74ABT241ADWRE4 pin-compatible with older 74LS241 devices?
Yes-SN74ABT241ADWRE4 uses the same SOIC-20 (DW) footprint and identical pinout as 74LS241, including 1OE, 1A1–1A4, 1Y1–1Y4, GND, VCC, 2Y1–2Y4, 2A1–2A4, and 2OE. However, the SN74ABT241ADWRE4 offers superior drive, speed, and noise immunity; verify timing closure and loading effects when upgrading legacy designs.
What is the maximum capacitive load SN74ABT241ADWRE4 can drive reliably?
The SN74ABT241ADWRE4 is characterized up to CL = 50 pF for timing specifications (e.g., tPLH ≤ 4.6 ns). While it can drive heavier loads, propagation delay increases linearly with capacitance, and ground bounce rises significantly beyond 50 pF. For >50-pF traces or stubs, add series termination or use a dedicated bus repeater-do not rely on SN74ABT241ADWRE4 alone for long-line or multi-drop routing.
SN74ABT241ADWRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
SN74ABT241ADWRE4 FAQ
1.How can I place an order for SN74ABT241ADWRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT241ADWRE4 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 SN74ABT241ADWRE4 reliable?
The price and inventory of SN74ABT241ADWRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT241ADWRE4 is usually 5 days.
3.What payment methods are accepted for SN74ABT241ADWRE4?
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SN74ABT241ADWRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT241ADWRE4 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 SN74ABT241ADWRE4?
For technical support, including SN74ABT241ADWRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT241ADWRE4 requirements.
6.How does Aetrix verify that SN74ABT241ADWRE4 is sourced from the original manufacturer or authorized distributors?
All SN74ABT241ADWRE4 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 SN74ABT241ADWRE4 meets industry standards.
7.What is the process for return or replacement of SN74ABT241ADWRE4?
All SN74ABT241ADWRE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT241ADWRE4, 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 SN74ABT241ADWRE4 part is unused and in its original packaging.
Return procedure for SN74ABT241ADWRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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