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Texas Instruments SN74ABT2241PWR
- Part No.:
- SN74ABT2241PWR
- Manufacturer:
- Texas Instruments
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74ABT2241PWR.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,192
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Product details
Overview
SN74ABT2241PWR from Texas Instruments is an octal noninverting buffer/line driver with 3-state outputs, designed for memory address and bus-oriented applications. It operates at 4.5–5.5 V, sinks up to 12 mA per output, features integrated 25-Ω series output resistors, and is rated for –40°C to 85°C operation in a 20-pin TSSOP (PW) package.
For engineers reviewing the SN74ABT2241PWR datasheet, SN74ABT2241PWR pinout, SN74ABT2241PWR application, or SN74ABT2241PWR equivalent, this page delivers verified electrical specs, true pin functions, real-world use cases in bus driving and clock distribution, and two validated alternative parts with documented functional and application differences.
Technical Context
This device integrates two independent 4-bit noninverting buffer groups (1A→1Y and 2A→2Y), each controlled by active-low 3-state enable inputs (1OE and 2OE). Its EPIC-IIB BiCMOS process enables high-speed switching (tPLH/tPHL ≤ 4.7 ns at 5 V, CL = 50 pF) while reducing power dissipation versus standard TTL.
The outputs incorporate on-die 25-Ω series termination to suppress overshoot/undershoot without external resistors. Input thresholds are TTL-compatible (VIL = 0.8 V, VVIH = 2 V), and output drive strength is asymmetric: IOL = 12 mA (sink), IOH = –24 mA (source) at VCC = 4.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with 5-V logic systems and tolerance for rail variation. |
| Output Drive (Low) | 12 mA - Sufficient to drive standard TTL loads and moderate-capacitance buses directly. |
| Propagation Delay | ≤ 4.7 ns - Enables reliable operation in high-speed address/data bus timing paths up to ~200 MHz. |
| 3-State Enable Time | tPZH ≤ 5.8 ns - Fast output disable supports dynamic bus sharing with minimal contention window. |
| Input Thresholds | VIL = 0.8 V, VIH = 2.0 V - Fully compatible with legacy TTL and LVTTL signal sources. |
| Output Series Resistance | 25 Ω (integrated) - Eliminates need for external series termination resistors on PCB traces. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded and computing applications. |
Pinout & Package
TSSOP-20 (PW) package: 6.95 mm × 4.4 mm × 1.2 mm body, 0.65 mm lead pitch, gull-wing leads, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE | Active-low enable for Y1–Y4 outputs | Drives all four 1Y outputs into high-impedance when high; ties to VCC via pullup for power-up safety. |
| 1A1–1A4 | Noninverting data inputs for first buffer group | Accept TTL-level signals; drive corresponding 1Y1–1Y4 outputs when 1OE is low. |
| 1Y1–1Y4 | Noninverting buffered outputs (Group 1) | Each includes 25-Ω series resistor; sink 12 mA, source –24 mA at VCC = 4.5 V. |
| 2OE | Active-low enable for Y1–Y4 outputs (Group 2) | Independent control of second buffer group; same pullup requirement as 1OE. |
| 2A1–2A4 | Noninverting data inputs for second buffer group | Electrically isolated from Group 1; allows dual-bus or split-address driving. |
| 2Y1–2Y4 | Noninverting buffered outputs (Group 2) | Match 1Y electrical specs; enable/disable timing identical to Group 1 outputs. |
| GND (Pin 10) | Ground reference | Single ground pin shared by both groups; requires low-inductance PCB connection. |
| VCC (Pin 20) | Power supply | 5-V nominal supply; decoupling capacitor (0.1 µF) required near pin for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 25-Ω output series resistors | Eliminates external termination components, reduces BOM count, and improves signal integrity on FR-4 traces. |
| EPIC-IIB BiCMOS process | Combines bipolar speed and CMOS low static power: ICC < 30 mA (all outputs active), < 250 µA (all disabled). |
| High fan-out capability | Drives ≥ 10 LSTTL loads per output - suitable for multi-drop address or control bus distribution. |
| Low ground bounce (VOLP) | < 1 V at VCC = 5 V - Minimizes noise coupling into sensitive analog or mixed-signal sections. |
| Asymmetric output drive | 12 mA sink / –24 mA source - Optimized for driving capacitive loads and pulling up weakly terminated lines. |
Applications
| Memory Address Buffering | System Bus Transceiver Interface |
|---|---|
|
Use Scenario: Driving 20-bit address bus from microcontroller to SRAM or Flash memory in industrial PLC controller. IC Role / Device Role / Timing Role: Noninverting octal buffer providing level-shifted, slew-controlled, and current-boosted address signals with simultaneous 3-state control. Use Value: Prevents address skew across wide bus; integrated 25-Ω resistors suppress ringing on 50-mm traces without layout redesign. |
Use Scenario: Isolating and buffering bidirectional data bus between FPGA and peripheral ASIC in test equipment. IC Role / Device Role / Timing Role: Dual-group 3-state driver enabling direction-controlled data flow; OE pins synchronized to bus control logic. Use Value: Enables clean bus turn-around with tPZH/tPHZ < 6 ns, avoiding contention during read/write transitions. |
| Legacy TTL System Upgrade | Clock Distribution Fanout |
|
Use Scenario: Replacing obsolete 74LS241 in avionics maintenance interface board requiring extended temperature support. IC Role / Device Role / Timing Role: Pin-compatible upgrade delivering higher drive strength, lower power, and improved noise immunity over LS family. Use Value: Maintains existing PCB layout while extending operating range to –40°C to +85°C and reducing system power by >40%. |
Use Scenario: Distributing 25-MHz system clock from oscillator to eight synchronous logic devices in telecom baseband module. IC Role / Device Role / Timing Role: Low-skew, noninverting fanout buffer with matched propagation delays across all eight outputs. Use Value: Delivers tskew < 0.5 ns between outputs, ensuring setup/hold compliance across distributed clock domains. |
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 |
|---|---|---|---|
| SN74LVC244APWR | Lower voltage (1.65–3.6 V), CMOS-only process, 24-mA drive, no integrated series resistors. | Requires external 33-Ω series termination for clean edges on 50-Ω traces; unsuitable for 5-V-only systems. | Select when migrating to 3.3-V logic domains and board space allows added termination resistors. |
| SN74ABT244N | Dual-in-line (N) package, 20-pin PDIP, identical electrical specs but larger footprint and through-hole mounting. | Used in legacy prototyping, repair, or through-hole production where TSSOP reflow is unavailable. | Choose only for hand-soldered prototypes or backward-compatible replacements where PW package is not feasible. |
Compared with SN74ABT2241PWR, SN74LVC244APWR offers lower voltage operation but demands external termination and lacks 5-V compatibility, while SN74ABT244N retains full electrical equivalence at the cost of larger size and obsolete packaging - making the PWR variant optimal for modern surface-mount industrial designs.
Availability
SN74ABT2241PWR is available at Aetrix Electronics and suitable for industrial control systems, legacy TTL upgrades, and high-reliability embedded bus interfaces requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74ABT2241PWR 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 industry-standard logic families.
The ABT logic family, including SN74ABT2241PWR, was engineered for high-speed, low-noise 5-V bus interfacing in computing, communications, and industrial systems - emphasizing drive strength, signal integrity, and thermal robustness.
FAQ
What is the maximum output current capability of SN74ABT2241PWR?
The SN74ABT2241PWR provides 12 mA sink current (IOL) and –24 mA source current (IOH) per output at VCC = 4.5 V. These values are specified under recommended operating conditions and ensure reliable driving of TTL and LSTTL loads without exceeding absolute maximum ratings.
Does SN74ABT2241PWR require external series termination resistors?
No. The SN74ABT2241PWR integrates 25-Ω series resistors on all eight outputs, eliminating the need for external termination components. This feature reduces PCB area, BOM count, and design complexity while improving signal integrity on typical FR-4 interconnects.
What is the operating temperature range for SN74ABT2241PWR?
The SN74ABT2241PWR is characterized for operation from –40°C to +85°C, qualifying it for industrial-grade applications. This range is distinct from the military-grade SN54ABT2241 (–55°C to +125°C) and reflects its target use in commercial and industrial embedded systems.
How should the OE pins be handled during power-up to ensure safe 3-state behavior?
To guarantee high-impedance outputs during power-up or power-down, both 1OE and 2OE must be tied to VCC via a pullup resistor. The minimum resistance value depends on the current-sinking capability of the driving logic; a 10-kΩ resistor is commonly used and verified in TI application notes for this device.
Is SN74ABT2241PWR pin-compatible with older 74-series buffers like 74LS241?
Yes - SN74ABT2241PWR maintains identical pinout, function, and logic behavior as 74LS241 and 74F241, enabling drop-in replacement. However, it adds integrated 25-Ω resistors, improved speed (≤4.7 ns vs. ~10 ns), and lower power consumption, making it a direct functional and physical upgrade.
SN74ABT2241PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm 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, 12mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
SN74ABT2241PWR FAQ
1.How can I place an order for SN74ABT2241PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT2241PWR 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 SN74ABT2241PWR reliable?
The price and inventory of SN74ABT2241PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT2241PWR is usually 5 days.
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SN74ABT2241PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT2241PWR 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 SN74ABT2241PWR?
For technical support, including SN74ABT2241PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT2241PWR requirements.
6.How does Aetrix verify that SN74ABT2241PWR is sourced from the original manufacturer or authorized distributors?
All SN74ABT2241PWR 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 SN74ABT2241PWR meets industry standards.
7.What is the process for return or replacement of SN74ABT2241PWR?
All SN74ABT2241PWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT2241PWR, 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 SN74ABT2241PWR part is unused and in its original packaging.
Return procedure for SN74ABT2241PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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