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Texas Instruments SN74ABT241ADBLE
- Part No.:
- SN74ABT241ADBLE
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
SN74ABT241ADBLE.pdf
- Description:
- BUS DRIVER, ABT SERIES, 4-BIT
- Quantity:
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Inventory:1,000
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Product details
Overview
SN74ABT241ADBLE from Texas Instruments is an octal noninverting buffer/driver with 3-state outputs, designed for memory address and bus driving in 5-V 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 SN74ABT241ADBLE datasheet, SN74ABT241ADBLE pinout, SN74ABT241ADBLE application, or SN74ABT241ADBLE equivalent, key selection considerations include 3-state bus interface timing (tPLH/tPHL ≤ 4.6 ns), output-enable control logic (active-low OE), thermal performance in SSOP-20 (θJA = 115°C/W), and compatibility with TTL-level inputs in industrial control and data acquisition systems.
Technical Context
This device integrates eight independent noninverting buffers, each with dedicated active-low output-enable (OE) control. Two groups of four channels share separate OE inputs (1OE and 2OE), enabling selective 3-state control of subsets of outputs without affecting others.
Its EPIC-IIB BiCMOS architecture combines bipolar input stages for TTL-compatible thresholds (VIH = 2 V, VIL = 0.8 V) and CMOS output stages for rail-to-rail swing and high current drive. Output ground bounce (VOLP) remains below 1 V at 5 V/25°C, supporting noise-sensitive digital interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures stable operation across standard 5-V ±10% rails in industrial and computing systems. |
| Output Drive | –32 mA IOH / 64 mA IOL - drives heavy capacitive loads (e.g., >50 pF buses) while maintaining fast edge rates and signal integrity. |
| Propagation Delay | tPLH/tPHL ≤ 4.6 ns @ 5 V/25°C - enables reliable timing in high-speed address/data bus applications up to ~200 MHz effective toggle rate. |
| 3-State Enable Time | tPZH/tPZL ≤ 6.8 ns - supports rapid bus arbitration and multi-master contention resolution without hold-time violations. |
| Input Thresholds | VIH = 2 V, VIL = 0.8 V - guarantees interoperability with legacy TTL and LVTTL logic families without level-shifting. |
| ESD Protection | ≥2000 V HBM, ≥200 V MM - provides robust handling during PCB assembly and field service in uncontrolled environments. |
| Latch-Up Immunity | >500 mA per JESD-17 - prevents destructive latch-up under transient overvoltage or hot-swap conditions in backplane interfaces. |
Pinout & Package
SN74ABT241ADBLE is packaged in a 20-pin Shrink Small-Outline Package (SSOP, DB), measuring 7.5 mm × 5.6 mm × 1.75 mm, with 0.65 mm lead pitch and gull-wing leads. The package is RoHS-compliant and rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 19 | Group 1 Output Enable (active-low) | Controls Y1–Y4 outputs; must be pulled high via resistor during power-up to ensure defined high-impedance state. |
| 2OE, 2 | Group 2 Output Enable (active-low) | Controls Y5–Y8 outputs; independent of 1OE for flexible bus segmentation and partial enable control. |
| 1A1–1A4, 2–4,6,8 | Group 1 Data Inputs | Noninverting inputs for first four buffer channels; TTL-compatible voltage thresholds ensure direct connection to microcontroller GPIO or FPGA I/O. |
| 2A1–2A4, 11,13,15,17 | Group 2 Data Inputs | Noninverting inputs for second four buffer channels; electrically isolated from Group 1 for dual-bus isolation or mirrored signal routing. |
| 1Y1–1Y4, 18,16,14,12 | Group 1 Outputs | 3-state noninverting outputs; sink/source capability supports termination-resistor networks and fan-out to ≥10 LSTTL loads. |
| 2Y1–2Y4, 9,7,5,3 | Group 2 Outputs | 3-state noninverting outputs; identical drive strength and timing to Group 1, enabling symmetrical bus driver designs. |
| GND, 10 | Ground Reference | Primary return path for all I/O and supply currents; requires low-inductance connection to system ground plane to minimize VOLP. |
| VCC, 20 | Power Supply | +5 V supply input; decoupling capacitor (0.1 µF ceramic) required within 5 mm to suppress switching noise and maintain rail stability. |
Key Features
| Feature | Design Value |
|---|---|
| High-Drive 3-State Outputs | –32 mA source / 64 mA sink capability enables direct driving of unterminated transmission lines and legacy TTL loads without external buffers. |
| EPIC-IIB BiCMOS Process | Reduces static power consumption by >50% versus standard ABT logic while retaining TTL-compatible input thresholds and fast propagation delays. |
| Independent Dual OE Control | Two separate active-low OE pins allow partitioning of the octal buffer into two independent 4-bit sections for dynamic bus segment control. |
| Robust ESD & Latch-Up Performance | Exceeds 2000 V HBM ESD and 500 mA latch-up immunity per JEDEC standards, eliminating need for external protection in most industrial layouts. |
| Low Ground Bounce | VOLP < 1 V at 5 V/25°C ensures minimal noise coupling into shared ground paths, critical for mixed-signal board designs. |
Applications
| Memory Address Buffering | Industrial Bus Transceiver Interface |
|---|---|
|
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: Enables concurrent access to multiple memory banks using OE-controlled channel grouping, reducing address decode complexity and PCB trace count. |
Use Scenario: Interfacing a PLC CPU module to distributed I/O racks over a parallel backplane bus. IC Role / Device Role / Timing Role: Bidirectional bus driver with independent OE control for direction management and fault-isolation of individual rack segments. Use Value: Supports hot-swap-safe bus arbitration via fast 3-state disable (≤6.8 ns), preventing data corruption during rack insertion/removal. |
| Legacy System Bus Extension | Test Equipment Signal Conditioning |
|
Use Scenario: Extending ISA or PC/104 bus signals to add-on cards requiring additional drive strength or isolation. IC Role / Device Role / Timing Role: High-current buffer isolating host bus from peripheral loading, with TTL-compatible inputs matching legacy chipset signaling. Use Value: Maintains signal integrity across long traces or high-fanout loads without timing skew, preserving strict ISA setup/hold margins. |
Use Scenario: Conditioning digital stimulus signals from ATE pattern generators before applying to DUT inputs. IC Role / Device Role / Timing Role: Precision 3-state driver ensuring clean signal edges, controlled rise/fall times, and glitch-free enable/disable transitions. Use Value: Eliminates false triggering on DUT due to ground bounce or slow enable edges, improving test repeatability and yield analysis accuracy. |
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 |
|---|---|---|---|
| SN74ABT241ADBR | Same die, DB package, active status, 2000-piece tape-and-reel; identical electrical specs and pinout. | No functional difference; intended for volume production vs. obsolete SN74ABT241ADBLE's sample/legacy use case. | Select SN74ABT241ADBR for new designs requiring guaranteed long-term availability and RoHS/Green compliance. |
| SN74ABT241ADW | SOIC-20 (DW) package; larger footprint (12.8 mm × 7.5 mm), higher θJA (97°C/W), same logic and timing specs. | Better thermal margin in low-airflow enclosures but requires more PCB area; compatible with standard SOIC reflow profiles. | Choose SN74ABT241ADW when board layout allows larger package and enhanced thermal performance is prioritized over density. |
Compared with SN74ABT241ADBLE, SN74ABT241ADBR offers assured supply continuity and updated eco-compliance, while SN74ABT241ADW trades compactness for improved thermal dissipation-both retain identical functional behavior and timing, making them drop-in alternatives where package constraints permit.
Availability
SN74ABT241ADBLE is available at Aetrix Electronics and suitable for industrial control systems, legacy bus extension modules, and test equipment signal conditioning requiring stable component supply and proven 5-V logic interoperability.
Supply support for SN74ABT241ADBLE 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 innovation in high-performance digital interfaces and industrial-grade ICs.
The SN74ABT241 series belongs to TI's advanced ABT logic family, engineered for high-speed, high-drive 3-state buffering in mission-critical industrial, computing, and communications infrastructure where reliability and signal fidelity are paramount.
FAQ
What is the operating temperature range for SN74ABT241ADBLE?
The SN74ABT241ADBLE is characterized for operation from –40°C to +85°C, meeting industrial-grade environmental requirements. This range is validated per the recommended operating conditions in the official Texas Instruments datasheet SCBS184D, and applies specifically to the DB-package variant including SN74ABT241ADBLE.
Does SN74ABT241ADBLE support true 5-V TTL interfacing?
Yes, SN74ABT241ADBLE supports full TTL compatibility: its input thresholds (VIH = 2 V min, VIL = 0.8 V max) match standard TTL levels, and its outputs deliver VOH ≥ 2.5 V at –24 mA and VOL ≤ 0.55 V at 48 mA under 5-V operation-ensuring robust noise margins and direct connection to legacy TTL devices without level shifters.
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 held high via pullup resistors. The minimum resistor value is determined by the driver's current-sinking capability; TI recommends ≥10 kΩ for typical applications. Pulling OE low unintentionally during startup will activate outputs and risk contention on shared buses.
Is SN74ABT241ADBLE pin-compatible with other ABT-series octal buffers?
SN74ABT241ADBLE is pin-compatible with SN74ABT241ADBR and SN74ABT241ADW in their respective DB and DW packages, sharing identical 20-pin SSOP/SOIC footprints and functionally matched pin assignments. However, it is not pin-compatible with inverting variants like SN74ABT240A or different-channel-count devices such as SN74ABT244A.
What is the maximum capacitive load SN74ABT241ADBLE can drive reliably?
SN74ABT241ADBLE is specified with CL = 50 pF for all switching characteristics (e.g., tPLH ≤ 4.6 ns). While it can drive heavier loads, timing degradation occurs beyond this value-measured tPLH increases to ~5.3 ns at CL = 70 pF. For reliable sub-5-ns timing, keep total net capacitance ≤50 pF including trace, stub, and receiver inputs.
SN74ABT241ADBLE 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:
- -
SN74ABT241ADBLE FAQ
1.How can I place an order for SN74ABT241ADBLE through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT241ADBLE 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 SN74ABT241ADBLE reliable?
The price and inventory of SN74ABT241ADBLE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT241ADBLE is usually 5 days.
3.What payment methods are accepted for SN74ABT241ADBLE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT241ADBLE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ABT241ADBLE?
SN74ABT241ADBLE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT241ADBLE 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 SN74ABT241ADBLE?
For technical support, including SN74ABT241ADBLE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT241ADBLE requirements.
6.How does Aetrix verify that SN74ABT241ADBLE is sourced from the original manufacturer or authorized distributors?
All SN74ABT241ADBLE 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 SN74ABT241ADBLE meets industry standards.
7.What is the process for return or replacement of SN74ABT241ADBLE?
All SN74ABT241ADBLE units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT241ADBLE, 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 SN74ABT241ADBLE part is unused and in its original packaging.
Return procedure for SN74ABT241ADBLE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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