My Inquiry
My Account
Texas Instruments SN74ABT241DWR
- Part No.:
- SN74ABT241DWR
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
SN74ABT241DWR.pdf
- Description:
- BUS DRIVER, ABT SERIES, 4-BIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74ABT241DWR from Texas Instruments is an octal noninverting buffer/driver with 3-state outputs, designed for memory address and bus-oriented applications. It features high-drive capability (–32 mA IOH, 64 mA IOL), low output ground bounce (<1 V VOLP at 5 V), and operates over –40°C to 85°C. Its DW package (SOIC-20) supports dense PCB layouts in industrial control and data acquisition systems.
For engineers reviewing the SN74ABT241DWR datasheet, SN74ABT241DWR pinout, SN74ABT241DWR application, or SN74ABT241DWR equivalent, key selection criteria include 3-state bus driving capability, BiCMOS power efficiency, TTL-compatible input thresholds, and SOIC-20 mechanical compatibility with legacy 74-series designs.
Technical Context
This device implements two independent 4-bit noninverting buffer sections (1A→1Y and 2A→2Y), each controlled by separate active-low 3-state enable inputs (1OE and 2OE). Output enable logic ensures high-impedance state during power sequencing when OE is pulled up to VCC or down to GND via external resistors.
Based on TI's EPIC-IIB BiCMOS process, it combines bipolar speed with CMOS low static power. Propagation delays are 0.8–5.3 ns (tPLH/tPHL), and enable/disable times range from 0.8–7.9 ns (tPZH/tPLZ), supporting high-speed bus isolation in synchronous digital systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures robust operation across standard 5-V TTL/CMOS supply tolerances. |
| IOH / IOL | –32 mA / 64 mA - Drives heavy capacitive loads and multiple TTL inputs without external buffers. |
| tPLH / tPHL | 0.8–5.3 ns - Enables sub-10-ns bus cycle timing in high-speed address/data paths. |
| VIL / VIH | 0.8 V / 2.0 V - Fully compatible with standard TTL input voltage thresholds. |
| IOZH / IOZL | ±10 µA max - Guarantees minimal leakage current in 3-state disabled mode. |
| Operating Temp | –40°C to 85°C - Qualified for industrial ambient environments without derating. |
| Input Clamping | –18 mA IIK - Protects against transient overvoltage on unused or floating inputs. |
Pinout & Package
SN74ABT241DWR uses a 20-pin SOIC (DW) package measuring 12.8 mm × 7.5 mm × 2.35 mm, compliant with JEDEC MS-012. Pin spacing is 1.27 mm, with gull-wing leads suitable for reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 19 | Active-low enable for Y1–Y4 | Drives all four 1Y outputs into high-Z when high; requires pullup for power-up safety. |
| 2OE, 2 | Active-low enable for Y1–Y4 (second section) | Independent control of 2Y1–2Y4; enables dual-bus partitioning or staggered enable timing. |
| 1A1–1A4, 2A1–2A4 (pins 2,4,6,8,11,13,15,17) | Data inputs | Noninverting inputs feeding respective Y outputs; TTL-compatible thresholds ensure noise margin. |
| 1Y1–1Y4, 2Y1–2Y4 (pins 18,16,14,12,9,7,5,3) | 3-state buffered outputs | High-drive outputs capable of sinking 64 mA or sourcing 32 mA while maintaining VOL ≤ 0.55 V. |
| VCC, 20 | Power supply | 5-V nominal supply; decoupling capacitor required within 1 cm for stable switching performance. |
| GND, 10 | Ground reference | Common return path for all I/O and internal circuitry; must be low-inductance connection. |
Key Features
| Feature | Design Value |
|---|---|
| EPIC-IIB BiCMOS Process | Reduces dynamic power vs. pure bipolar while retaining 74-series speed and drive strength. |
| Output Ground Bounce (VOLP) | <1 V at 5 V/25°C - Minimizes signal integrity risk during simultaneous output switching. |
| Latch-Up Immunity | >500 mA per JESD-17 - Prevents destructive latch-up under ESD or overvoltage stress. |
| 3-State Enable Architecture | Dual independent OE inputs allow selective bus segment isolation without global reset. |
| Input Transition Rate Tolerance | 5 ns/V - Accepts slow-rising clock or control signals without false triggering. |
Applications
| Memory Address Buffering | System Bus Isolation |
|---|---|
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 fanout and level translation between controller and memory chips. Use Value: High-current outputs maintain signal integrity across long traces and multiple loads, reducing need for additional drivers. | Use Scenario: Isolating CPU data bus from peripheral subsystems (e.g., UART, ADC, GPIO expanders) during idle cycles. IC Role / Device Role / Timing Role: Bidirectional bus driver with independent 3-state enables for time-multiplexed peripheral access. Use Value: Dual OE inputs allow precise timing control to prevent bus contention during arbitration transitions. |
| Clock Distribution | Industrial I/O Expansion |
Use Scenario: Distributing a system clock to multiple synchronous peripherals requiring matched skew and drive strength. IC Role / Device Role / Timing Role: Low-skew buffer replicating clock signal with minimal added jitter or delay variation. Use Value: Sub-6 ns propagation delay and tight tPLH/tPHL matching (±0.7 ns) preserve clock phase alignment. | Use Scenario: Expanding digital I/O count in PLC modules where field-side signals require robust buffering before FPGA/CPU interface. IC Role / Device Role / Timing Role: Industrial-grade buffer interfacing noisy 24-V sensor/actuator signals via level-shifting circuitry. Use Value: –40°C to 85°C rating and 500 mA latch-up immunity ensure reliability in electrically harsh factory environments. |
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 |
|---|---|---|---|
| SN74ABT240DWR | Inverting output logic (vs. noninverting in SN74ABT241DWR); identical pinout, drive strength, and timing. | Required where signal polarity inversion is needed in bus transceivers or differential pair interfaces. | Select SN74ABT240DWR only when inverting logic matches system-level signal flow; otherwise SN74ABT241DWR maintains direct functional mapping. |
| SN74LVC244APWR | 3.3-V only operation (1.65–3.6 V), lower drive (–24/+24 mA), and smaller TSSOP-20 package. | Suitable for mixed-voltage systems with 3.3-V logic domains; not interoperable with 5-V buses without level shifting. | Choose SN74LVC244APWR for power-sensitive, space-constrained 3.3-V designs; SN74ABT241DWR remains optimal for legacy 5-V industrial bus architectures. |
Compared with SN74ABT240DWR, SN74ABT241DWR provides noninverting logic essential for transparent address/data forwarding; versus SN74LVC244APWR, it delivers higher drive and 5-V compatibility critical for industrial backplane reliability-neither is pin-compatible nor drop-in replaceable due to voltage domain and logic inversion mismatches.
Availability
SN74ABT241DWR is available at Aetrix Electronics and suitable for industrial control systems, test equipment design, and legacy 5-V embedded computing platforms requiring stable component supply and long-term obsolescence management.
Supply support for SN74ABT241DWR 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The ABT logic family-including SN74ABT241DWR-was engineered for high-speed, high-drive 5-V bus interfacing with BiCMOS efficiency, targeting memory subsystems and backplane applications in industrial and telecom infrastructure.
FAQ
What is the recommended power-up sequence for SN74ABT241DWR to avoid bus contention?
TI recommends tying both 1OE and 2OE to VCC through a pullup resistor (value determined by driver sink capability) during power-up. This forces all outputs into high-impedance until firmware asserts valid enable signals. For SN74ABT241DWR, this prevents unintended driving of shared bus lines before system initialization completes, eliminating risk of data corruption or latch-up.
Can SN74ABT241DWR operate reliably at 4.5 V supply voltage?
Yes. SN74ABT241DWR is fully characterized from 4.5 V to 5.5 V per its recommended operating conditions. At 4.5 V, it maintains guaranteed VOH ≥ 2.0 V (with IOH = –24 mA) and VOL ≤ 0.55 V (with IOL = 48 mA), ensuring noise margins remain sufficient for TTL-compatible interfaces across the full industrial temperature range.
Does SN74ABT241DWR support hot-swap or live-insertion applications?
No. SN74ABT241DWR lacks explicit hot-swap protection features such as power-on reset, slew-rate limiting, or backdrive tolerance. Its absolute maximum ratings permit VI and VO up to 7 V, but uncontrolled insertion into a live 5-V bus may exceed input clamp current (–18 mA) or cause transient latch-up. Use dedicated hot-swap controllers upstream if live insertion is required.
What is the thermal resistance (θJA) of SN74ABT241DWR in the DW package?
Per TI's packaging data, the SOIC-20 (DW) package for SN74ABT241DWR has a typical junction-to-ambient thermal resistance (θJA) of 70°C/W under standard JEDEC 2S2P board conditions. At maximum rated power dissipation (1.6 W), this yields a worst-case junction temperature rise of 112°C above ambient-requiring derating above 40°C ambient for continuous operation.
How does the EPIC-IIB process improve SN74ABT241DWR performance versus older bipolar 74-series buffers?
The EPIC-IIB BiCMOS process used in SN74ABT241DWR replaces traditional bipolar transistor stacks with CMOS input stages and optimized bipolar output drivers. This reduces static power consumption by >70% versus 74F-series while preserving 74AS-class speed and drive strength-enabling SN74ABT241DWR to deliver 64-mA sink current with typical ICCEX < 50 µA in 3-state mode.
SN74ABT241DWR 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:
- -
SN74ABT241DWR FAQ
1.How can I place an order for SN74ABT241DWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT241DWR 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 SN74ABT241DWR reliable?
The price and inventory of SN74ABT241DWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT241DWR is usually 5 days.
3.What payment methods are accepted for SN74ABT241DWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT241DWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ABT241DWR?
SN74ABT241DWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT241DWR 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 SN74ABT241DWR?
For technical support, including SN74ABT241DWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT241DWR requirements.
6.How does Aetrix verify that SN74ABT241DWR is sourced from the original manufacturer or authorized distributors?
All SN74ABT241DWR 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 SN74ABT241DWR meets industry standards.
7.What is the process for return or replacement of SN74ABT241DWR?
All SN74ABT241DWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT241DWR, 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 SN74ABT241DWR part is unused and in its original packaging.
Return procedure for SN74ABT241DWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74ABT241DWR Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
