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Texas Instruments SN74ABT241APWLE
- Part No.:
- SN74ABT241APWLE
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
SN74ABT241APWLE.pdf
- Description:
- BUS DRIVER, ABT SERIES, 4-BIT
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Inventory:4,642
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Product details
Overview
SN74ABT241APWLE from Texas Instruments is a noninverting octal buffer/driver with 3-state outputs, designed for memory address and bus driving in 5-V digital systems. It delivers high-drive capability (–32 mA IOH, 64 mA IOL), operates from –40°C to 85°C, and features EPIC-IIB BiCMOS technology for low power dissipation and robust latch-up immunity (>500 mA per JESD-17).
For engineers reviewing the SN74ABT241APWLE datasheet, SN74ABT241APWLE pinout, SN74ABT241APWLE application, or SN74ABT241APWLE equivalent, key selection criteria include 3-state output control timing (tPZH/tPLZ ≤ 6.8 ns), output ground bounce (<1 V), and compatibility with standard 20-pin TSSOP (PW) layout and JEDEC-compliant 5-V logic interfaces.
Technical Context
This device integrates two independent 4-bit noninverting buffer sections, each with dedicated active-low output-enable (OE) inputs. Its dual OE architecture enables independent control of two 4-bit data paths, supporting bidirectional bus isolation and time-multiplexed signal routing.
The EPIC-IIB BiCMOS process delivers TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V), rail-to-rail output swing (VOH ≥ 2 V at –32 mA, VOL ≤ 0.55 V at 64 mA), and fast propagation delays (tPLH/tPHL ≤ 4.6 ns at 5 V, CL = 50 pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures stable operation across industrial-grade 5-V rail tolerances. |
| Output Drive | –32 mA IOH / 64 mA IOL - Supports heavy capacitive loads and fan-out to multiple TTL/CMOS inputs without external buffers. |
| Propagation Delay | tPLH/tPHL ≤ 4.6 ns - Enables reliable timing in high-speed address/data buses up to ~200 MHz clock domains. |
| 3-State Enable/Disable | tPZH/tPLZ ≤ 6.8 ns - Guarantees rapid bus release and acquisition for dynamic bus sharing. |
| Input Thresholds | VIH = 2 V, VIL = 0.8 V - Matches standard TTL logic levels for seamless interface with legacy controllers and FPGAs. |
| ESD Protection | ≥2000 V HBM, ≥200 V MM - Meets MIL-STD-883 requirements for handling robustness in manufacturing and field environments. |
| Latch-Up Immunity | >500 mA per JESD-17 - Prevents destructive latch-up during transient overvoltage or hot-swap events. |
Pinout & Package
SN74ABT241APWLE is housed in a 20-pin Thin Shrink Small-Outline Package (TSSOP, PW), measuring 6.95 mm × 4.4 mm × 1.2 mm, with 0.65 mm lead pitch and RoHS-compliant CU NIPDAU finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 19 | Active-low Output Enable (Channel 1) | Controls Y1–Y4 outputs; must be pulled high via resistor at power-up to ensure high-impedance state. |
| 2OE, 2 | Active-low Output Enable (Channel 2) | Independent control of Y1–Y4 outputs; decouples bus segments for selective data routing. |
| 1A1–1A4, 3,5,7,9 | Noninverting Inputs (Channel 1) | Directly drive corresponding Y1–Y4 outputs when 1OE is low; TTL-compatible voltage thresholds. |
| 2A1–2A4, 11,13,15,17 | Noninverting Inputs (Channel 2) | Drive Y1–Y4 outputs under control of 2OE; enables dual-bus or mirrored signal path configuration. |
| 1Y1–1Y4, 18,16,14,12 | Noninverting Outputs (Channel 1) | High-drive 3-state outputs; sink/source up to 64 mA/–32 mA while maintaining <0.55 V/<2 V logic levels. |
| 2Y1–2Y4, 4,6,8,10 | Noninverting Outputs (Channel 2) | Match Channel 1 electrical specs; supports parallel or interleaved bus architectures. |
| VCC, 20 | Positive Supply | 5-V nominal supply; requires local 0.1 µF ceramic decoupling adjacent to pin 20. |
| GND, 1 | Ground Reference | Common return for all I/O and supply currents; critical for minimizing ground bounce (VOLP < 1 V). |
Key Features
| Feature | Design Value |
|---|---|
| EPIC-IIB BiCMOS Process | Reduces static power consumption vs. bipolar-only designs while retaining high-speed switching performance. |
| Symmetrical Active-Low OE Inputs | Enables predictable, glitch-free 3-state control using standard open-drain or push-pull drivers without inversion logic. |
| High-Drive 3-State Outputs | Supports direct connection to 50-pF bus loads at 20+ MHz without signal integrity degradation. |
| Output Ground Bounce Suppression | VOLP < 1 V ensures noise margin preservation during simultaneous output switching in dense PCB layouts. |
| JEDEC JESD-17 Latch-Up Immunity | Withstands >500 mA transient current, eliminating need for external current-limiting protection in harsh EMI environments. |
Applications
| Memory Address Buffering | System Bus Transceiver |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting octal buffer providing level translation, fan-out expansion, and 3-state isolation between master and memory peripherals. Use Value: Eliminates timing skew across address bits and prevents bus contention during memory access arbitration. |
Use Scenario: Bidirectional data transfer between an FPGA and peripheral ICs (e.g., ADC, DAC, EEPROM) on a common 8-bit data bus. IC Role / Device Role / Timing Role: Dual-channel 3-state driver enabling direction-controlled data flow with sub-7 ns enable/disable transitions. Use Value: Reduces PCB layer count by replacing discrete transceivers and simplifies control logic with symmetrical OE inputs. |
| Clock Distribution | Legacy Interface Bridge |
Use Scenario: Distributing a 50-MHz system clock to four synchronous logic blocks while maintaining edge integrity. IC Role / Device Role / Timing Role: Low-skew, high-drive buffer replicating clock signals with matched tPLH/tPHL and minimal jitter addition. Use Value: Maintains setup/hold margins across distributed loads and suppresses ground bounce-induced clock jitter. |
Use Scenario: Interfacing modern 3.3-V microcontrollers with legacy 5-V peripherals (e.g., industrial sensors, displays) requiring TTL-level signaling. IC Role / Device Role / Timing Role: Level-shifting buffer with 5-V tolerant inputs and robust 5-V outputs compatible with older logic families. Use Value: Avoids external level translators and preserves signal rise/fall times critical for timing-critical protocols like SPI or parallel LCD control. |
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 |
|---|---|---|---|
| SN74ABT241APWR | Identical electrical specs and pinout; differs only in packaging status (ACTIVE vs OBSOLETE) and reel quantity (2000 vs TBD). | Same functional use in new designs; preferred for volume procurement due to guaranteed availability and RoHS compliance. | Select SN74ABT241APWR for production builds requiring long-term supply continuity and full traceability. |
| SN74LVC244APWR | Lower voltage operation (1.65–3.6 V), reduced drive (–24/+24 mA), and higher propagation delay (≤7.1 ns); 3.3-V logic family. | Suitable for mixed-voltage 3.3-V systems but incompatible with 5-V buses without level shifting. | Choose SN74LVC244APWR only when migrating to 3.3-V core logic and redesigning power delivery and I/O interfaces. |
Compared with SN74ABT241APWLE, SN74ABT241APWR offers identical performance with assured supply chain support, while SN74LVC244APWR trades 5-V compatibility and drive strength for lower power and 3.3-V integration-requiring board-level voltage adaptation.
Availability
SN74ABT241APWLE is available at Aetrix Electronics and suitable for memory subsystem buffering, industrial bus interfacing, and legacy 5-V logic consolidation requiring stable component supply and documented thermal derating behavior.
Supply support for SN74ABT241APWLE 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 high-reliability logic families.
SN74ABT241APWLE belongs to the ABT-series advanced bi-directional buffer family, engineered for high-speed, high-drive 5-V bus management in industrial, computing, and communications infrastructure equipment.
FAQ
What is the operating temperature range for SN74ABT241APWLE?
The SN74ABT241APWLE is characterized for operation from –40°C to +85°C, meeting industrial-grade environmental requirements. This range is specified in the recommended operating conditions table of the SCBS184D datasheet and applies to all electrical parameters including output drive, propagation delay, and 3-state transition times under load.
Does SN74ABT241APWLE support 3.3-V input logic levels?
No, SN74ABT241APWLE requires TTL-compatible input thresholds: VIH = 2.0 V minimum and VIL = 0.8 V maximum at VCC = 5 V. While it tolerates input voltages up to VCC (5.5 V), it does not guarantee recognition of 3.3-V logic highs as valid high-level inputs without margin degradation or increased static current.
How should the OE pins be handled during power-up to avoid bus contention?
To ensure high-impedance outputs at power-up, both 1OE (pin 19) and 2OE (pin 2) must be tied to VCC through pull-up resistors. The minimum resistor value is determined by the current-sinking capability of the driving source; TI recommends verifying against the driver's IOH spec and ensuring the voltage at OE remains above VIH during ramp-up.
What is the maximum capacitive load SN74ABT241APWLE can drive reliably?
SN74ABT241APWLE switching characteristics (tPLH/tPHL, tPZH/tPLZ) are specified with CL = 50 pF. While it can drive heavier loads due to its 64-mA IOL, signal integrity degrades beyond this point-rise/fall times increase and ground bounce rises. For loads >50 pF, layout optimization and local termination are strongly advised.
Is SN74ABT241APWLE pin-compatible with SN74ABT241APWR?
Yes, SN74ABT241APWLE and SN74ABT241APWR share identical 20-pin TSSOP (PW) package dimensions, pinout, and electrical specifications. They differ only in packaging status (OBSOLETE vs ACTIVE) and reel configuration-making SN74ABT241APWR a drop-in replacement for new designs requiring assured supply.
SN74ABT241APWLE 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:
- -
SN74ABT241APWLE FAQ
1.How can I place an order for SN74ABT241APWLE through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT241APWLE 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 SN74ABT241APWLE reliable?
The price and inventory of SN74ABT241APWLE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT241APWLE is usually 5 days.
3.What payment methods are accepted for SN74ABT241APWLE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT241APWLE transactions.
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4.How is shipping managed for SN74ABT241APWLE?
SN74ABT241APWLE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT241APWLE 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 SN74ABT241APWLE?
For technical support, including SN74ABT241APWLE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT241APWLE requirements.
6.How does Aetrix verify that SN74ABT241APWLE is sourced from the original manufacturer or authorized distributors?
All SN74ABT241APWLE 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 SN74ABT241APWLE meets industry standards.
7.What is the process for return or replacement of SN74ABT241APWLE?
All SN74ABT241APWLE units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT241APWLE, 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 SN74ABT241APWLE part is unused and in its original packaging.
Return procedure for SN74ABT241APWLE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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