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Texas Instruments SN74ABT241ADWR
- Part No.:
- SN74ABT241ADWR
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SN74ABT241ADWR.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,990
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Product details
Overview
SN74ABT241ADWR 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/±64 mA output drive, features 2.6 ns typical propagation delay (tPLH), and is qualified for –40°C to 85°C industrial operation in SOIC-20 (DW) package.
For engineers reviewing the SN74ABT241ADWR datasheet, SN74ABT241ADWR pinout, SN74ABT241ADWR application, or SN74ABT241ADWR 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 BiCMOS device implements dual 4-bit noninverting buffers with independent active-low 3-state enable inputs (1OE, 2OE). Each half drives four outputs (1Y1–1Y4, 2Y1–2Y4) from corresponding inputs (1A1–1A4, 2A1–2A4), supporting bidirectional bus isolation and clock distribution.
Its EPIC-II™B architecture enables low power dissipation while maintaining TTL-compatible input thresholds (VIH = 2 V min, VIL = 0.8 V max) and rail-to-rail output swing under heavy load-critical for driving terminated transmission lines and multiple CMOS/TTL loads simultaneously.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures robust operation across noisy 5 V supply rails with ±10% tolerance. |
| IOL / IOH | 64 mA / –32 mA - Drives up to 16 standard TTL loads or terminates stubs in high-speed backplanes. |
| tPLH / tPHL | 1 ns (min) to 4.6 ns (max) at 5 V - Supports >200 MHz data rates in point-to-point or lightly loaded buses. |
| VOLP (Ground Bounce) | <1 V at VCC = 5 V, TA = 25°C - Minimizes signal integrity degradation during simultaneous switching. |
| Latch-Up Immunity | >500 mA per JEDEC JESD-17 - Prevents destructive latch-up in systems with transient voltage coupling. |
| ESD Rating | >2000 V HBM, >200 V MM - Enables safe handling and assembly without special ESD controls. |
Pinout & Package
SN74ABT241ADWR uses a 20-pin SOIC (DW) package measuring 7.5 mm × 13.3 mm × 2.65 mm, with 1.27 mm lead pitch and gull-wing leads compatible with standard reflow profiles (MSL Level-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 19 | Active-low enable for Y1–Y4 | Drives outputs 1Y1–1Y4 into high-impedance when high; requires pull-up to VCC for power-up safety. |
| 2OE, 2 | Active-low enable for Y5–Y8 | Independent control of second buffer bank; enables split-bus or staggered enable sequencing. |
| 1A1–1A4, 2–4,6,8 | Noninverting inputs (Bank 1) | Directly pass logic states to 1Y1–1Y4; TTL-compatible thresholds ensure noise margin in mixed-signal systems. |
| 2A1–2A4, 11,13,15,17 | Noninverting inputs (Bank 2) | Isolated input set allows independent sourcing for dual data paths or mirrored control signals. |
| 1Y1–1Y4, 18,16,14,12 | Noninverting outputs (Bank 1) | High-drive outputs support fanout >10 and tolerate 50 pF load with sub-5 ns delay. |
| 2Y1–2Y4, 9,7,5,3 | Noninverting outputs (Bank 2) | Matched timing to Bank 1 outputs enables synchronous bus expansion without skew compensation. |
| GND, 10 | Power return | Single ground pin shared by both banks; layout must minimize impedance to reduce ground bounce coupling. |
| VCC, 20 | Supply rail | 5 V nominal supply; decoupling capacitor required within 10 mm to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| State-of-the-art EPIC-II™B BiCMOS process | Reduces static current vs. bipolar-only equivalents while retaining high-speed edge rates and drive strength. |
| Symmetrical active-low OE inputs | Enables clean, glitch-free bus release via synchronized OE deassertion across both banks. |
| High-impedance state during power-up/down | OE pins default disabled when unconnected; external pull-up ensures safe initialization without firmware dependency. |
| Output ground bounce <1 V | Mitigates false triggering in adjacent logic due to simultaneous output switching in high-density designs. |
| JEDEC-standard latch-up immunity | Guarantees survivability in environments with EFT bursts, hot-plug transients, or supply rail collapse. |
Applications
| Memory Address Buffering | PCI/ISA Bus Transceiver Interface |
|---|---|
Use Scenario: Driving 20-bit address bus between microcontroller and SRAM/Flash in embedded control system. IC Role / Device Role / Timing Role: Noninverting buffer isolating CPU address outputs from memory load capacitance and noise. Use Value: Delivers 64 mA sink current to overcome trace capacitance and maintain setup/hold margins at 25 MHz clock rate. | Use Scenario: Interfacing legacy ISA peripheral card to modern FPGA-based host controller. IC Role / Device Role / Timing Role: Bidirectional 3-state bus driver enabling shared data/address lines with direction control via OE. Use Value: Dual independent OE inputs allow precise timing of bus release before direction reversal, eliminating contention. |
| Clock Distribution Network | Industrial I/O Module Signal Conditioning |
Use Scenario: Fanout of 5 MHz system clock to eight isolated sensor acquisition channels. IC Role / Device Role / Timing Role: Low-skew noninverting driver replicating clock to multiple ADC/DAC sync inputs. Use Value: Matched tPLH/tPHL (≤4.6 ns max) and <1 V ground bounce preserve jitter budget across all eight outputs. | Use Scenario: Level-shifting and buffering of PLC digital input signals before FPGA processing. IC Role / Device Role / Timing Role: Robust interface translating 24 V industrial logic to 5 V FPGA I/O with noise immunity. Use Value: 500 mA latch-up rating withstands induced surges on field wiring; 2000 V HBM ESD protects against operator contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT240ADWR | Inverting output logic (vs. noninverting in SN74ABT241ADWR); identical drive, timing, and package. | Requires logic inversion in upstream signal path; unsuitable where polarity must be preserved. | Select when bus protocol mandates inverted enable or data polarity, e.g., certain memory write strobes. |
| SN74LVC244APWR | Lower voltage (1.65–3.6 V), lower drive (24 mA), higher propagation delay (5.6 ns max), TSSOP-20 package. | Not pin-compatible; requires PCB redesign; suited for 3.3 V systems with relaxed speed requirements. | Choose for cost-sensitive, low-power 3.3 V applications where 5 V tolerance and 64 mA drive are unnecessary. |
Compared with SN74ABT241ADWR, SN74ABT240ADWR preserves pinout and electrical specs but inverts signal polarity-requiring design validation of logic flow-while SN74LVC244APWR trades 5 V robustness and drive strength for 3.3 V compatibility and smaller footprint, necessitating layout changes.
Availability
SN74ABT241ADWR is available at Aetrix Electronics and suitable for industrial control systems, legacy bus interfaces, and memory subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74ABT241ADWR 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 50 years of innovation in high-reliability interface ICs.
The ABT logic family-including SN74ABT241ADWR-is engineered for high-speed, high-drive 3-state bus interfacing in industrial, computing, and communications equipment where signal integrity and latch-up immunity are critical.
FAQ
What is the maximum operating temperature range for SN74ABT241ADWR?
The SN74ABT241ADWR is characterized for industrial operation from –40°C to +85°C. This range is validated per the recommended operating conditions in the official Texas Instruments datasheet SCBS184D, and applies specifically to the DW-package variant including SN74ABT241ADWR. Operation outside this range may result in parametric shift or functional failure.
Does SN74ABT241ADWR support hot-swap or live-insertion?
SN74ABT241ADWR is not explicitly rated for hot-swap operation. While its high latch-up immunity (>500 mA) and robust ESD protection (>2000 V HBM) improve resilience during insertion, the device lacks controlled slew-rate outputs or power-on reset circuitry. Safe live insertion requires external current-limiting and sequencing circuitry; TI does not guarantee hot-swap functionality for SN74ABT241ADWR.
What is the recommended pull-up resistor value for OE pins on SN74ABT241ADWR?
The datasheet specifies that OE should be tied to VCC via a pull-up resistor whose minimum value is determined by the current-sinking capability of the driver. For SN74ABT241ADWR, with IOZL ≤ –10 µA in 3-state, a 10 kΩ resistor is commonly used-ensuring OE remains solidly high during power-up while drawing <0.5 mA. Lower values increase noise immunity but raise static current.
Can SN74ABT241ADWR drive a 50-pF capacitive load at full speed?
Yes. The switching characteristics table in the SN74ABT241ADWR datasheet specifies tPLH/tPHL parameters measured with CL = 50 pF. At VCC = 5 V and TA = 25°C, propagation delay is guaranteed ≤4.6 ns, confirming reliable operation into 50-pF loads typical of PCB traces and input capacitance of downstream devices.
Is SN74ABT241ADWR pin-compatible with older SN74ABT241 variants?
Yes. SN74ABT241ADWR shares identical pinout, function, and timing with other DW-package variants like SN74ABT241ADW (tube version). All SN74ABT241A DW variants use the same SOIC-20 (DW) footprint and logic mapping per the top-view diagram in SCBS184D, enabling drop-in replacement without layout modification.
SN74ABT241ADWR 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:
- 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
SN74ABT241ADWR FAQ
1.How can I place an order for SN74ABT241ADWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT241ADWR 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 SN74ABT241ADWR reliable?
The price and inventory of SN74ABT241ADWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT241ADWR is usually 5 days.
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SN74ABT241ADWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT241ADWR 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 SN74ABT241ADWR?
For technical support, including SN74ABT241ADWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT241ADWR requirements.
6.How does Aetrix verify that SN74ABT241ADWR is sourced from the original manufacturer or authorized distributors?
All SN74ABT241ADWR 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 SN74ABT241ADWR meets industry standards.
7.What is the process for return or replacement of SN74ABT241ADWR?
All SN74ABT241ADWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT241ADWR, 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 SN74ABT241ADWR part is unused and in its original packaging.
Return procedure for SN74ABT241ADWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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