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Texas Instruments SN74AC241PW
- Part No.:
- SN74AC241PW
- Manufacturer:
- Texas Instruments
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74AC241PW.pdf
- Description:
- IC BUFF NON-INVERT 6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,418
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Product details
Overview
SN74AC241PW from Texas Instruments is an octal 3-state buffer/driver IC with dual independent 4-bit channels, operating across 2V–6V supply range, supporting 5V and 3.3V logic systems, with 7.5ns max propagation delay at 5V, used for memory address buffering, clock distribution, and bidirectional bus interfacing in industrial control and embedded computing.
For engineers reviewing the SN74AC241PW datasheet, SN74AC241PW pinout, SN74AC241PW application, or SN74AC241PW equivalent, this page delivers verified functional identity, TSSOP-20 package mapping, 3-state output behavior, voltage-tolerant inputs, thermal resistance (126.2°C/W), and validated alternative options for bus interface design.
Technical Context
The SN74AC241PW implements two independent 4-bit noninverting buffers, each controlled by complementary output-enable inputs (1OE low or 2OE high enables respective channel). Its CMOS AC technology ensures rail-to-rail input voltage tolerance up to 6V and supports mixed-voltage system interfacing without level shifters.
It operates over –40°C to +85°C, features high-impedance outputs when disabled, and maintains stable timing performance across VCC = 2V–6V - with tPLH/tPHL ≤ 7.5ns at 5V and ≤10ns at 3.3V, enabling reliable use in synchronous data paths and address latching circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - supports direct interface with 3.3V and 5V logic families without external regulators |
| Max Propagation Delay | 7.5ns at 5V - enables operation in high-speed address/data buses up to ~100 MHz toggle rate |
| Input Voltage Tolerance | Up to 6V - allows safe connection to higher-voltage signals without clamping diodes or protection circuitry |
| Output Drive Strength | ±24mA at 5V - sufficient to drive 50Ω transmission lines or fan-out to ≥10 LVTTL loads |
| Junction-to-Ambient θJA | 126.2°C/W (TSSOP-20) - requires thermal-aware PCB layout with copper pour for sustained 50mA per output |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded systems and automation equipment |
| 3-State Enable Logic | 1OE active-low / 2OE active-high - permits independent channel control for time-multiplexed bus arbitration |
Pinout & Package
TSSOP-20 (PW) package: 6.5mm × 6.4mm body size, 1.2mm max height, 0.65mm lead pitch, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1 (260°C reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Complementary output-enable controls - 1OE low enables first 4-bit channel; 2OE high enables second 4-bit channel |
| 2–4, 6–8, 11–13, 15–17 | 1A1–1A4, 2A1–2A4 | Eight buffered input terminals - accept 2V–6V logic levels; no external pull-ups required |
| 3, 5, 7, 9, 12, 14, 16, 18 | 2Y4–2Y1, 1Y4–1Y1 | Eight 3-state outputs - high-impedance when respective OE is inactive; drive strength ±24mA at 5V |
| 10 | GND | Ground reference - must be connected to system ground plane; decoupling capacitor required adjacent to pin |
| 20 | VCC | Power supply - accepts 2V–6V; requires local 0.1µF ceramic bypass capacitor per device |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input voltage support | Accepts VI up to 6V regardless of VCC - eliminates need for external level translators in mixed-supply systems |
| Dual independent 4-bit channels | Enables time-sliced bus sharing between two subsystems using separate OE controls - reduces component count vs. discrete buffers |
| Low propagation delay variation | tPLH/tPHL skew < 1ns across temperature - ensures deterministic timing in synchronous address/data latching |
| High noise immunity | VIL = 0.9V / VIH = 2.1V at VCC = 3V - provides >0.6V noise margin against EMI in industrial environments |
| CMOS AC logic family | Combines TTL-compatible drive with CMOS low power - ICC = 4µA typical at 5V, enabling battery-sensitive applications |
Applications
| Memory Address Buffering | Clock Distribution |
|---|---|
Use Scenario: Driving address lines from a microcontroller to multiple SRAM or flash devices on a shared bus. IC Role / Device Role: SN74AC241PW acts as a high-drive, low-skew address latch buffer with 3-state isolation between memory banks. Use Value: Prevents address contention during bank switching; 7.5ns delay ensures setup/hold compliance with 100MHz memory access cycles. | Use Scenario: Distributing a master clock signal to multiple peripherals while maintaining edge integrity. IC Role / Device Role: SN74AC241PW functions as a fan-out buffer with matched trace-length outputs and controlled rise/fall times. Use Value: Delivers clean, low-jitter clock edges to 8 downstream devices; rail-to-rail inputs tolerate oscillator output variations. |
| Bus Transceiver Interface | Industrial I/O Expansion |
Use Scenario: Bidirectional data transfer between a microcontroller and legacy parallel peripheral (e.g., printer port or display controller). IC Role / Device Role: SN74AC241PW serves as a direction-controlled 8-bit transceiver using complementary OE pins for read/write arbitration. Use Value: Eliminates need for separate TX/RX buffers; 3-state outputs prevent bus conflicts during idle periods. | Use Scenario: Expanding GPIO count on PLC or HMI controller to drive LEDs, relays, or sensors via parallel interface. IC Role / Device Role: SN74AC241PW operates as a high-current output driver stage, translating MCU logic levels to load-switching voltages. Use Value: ±24mA drive per output directly drives 5V LED arrays or small solenoids without external transistors. |
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 |
|---|---|---|---|
| SN74LVC244APW | Lower VCC range (1.65V–3.6V); 3.3V-only optimized; 6.7ns max tPD at 3.3V | Better suited for modern low-voltage FPGA/CPU interfaces; not compatible with 5V systems | Select when system uses only 3.3V logic and requires lower static current (ICC = 1µA typical) |
| 74AC244PC | PDIP-20 package; identical AC logic specs; higher θJA (69°C/W); through-hole mounting | Preferred for prototyping, legacy repair, or high-reliability aerospace assemblies requiring through-hole solder joints | Choose for manual assembly, test fixtures, or environments where TSSOP rework is impractical |
Compared with SN74AC241PW, SN74LVC244APW offers better low-voltage efficiency but lacks 5V compatibility, while 74AC244PC retains full electrical equivalence in a through-hole form factor - making SN74AC241PW the optimal choice for space-constrained 2V–6V industrial PCBs requiring surface-mount reliability.
Availability
SN74AC241PW is available at Aetrix Electronics and suitable for industrial control panels, embedded instrumentation, and programmable logic interfaces requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for SN74AC241PW 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 delivering analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The SN74AC241PW belongs to TI's 74AC logic family - engineered for high-speed, low-power, mixed-voltage bus interface applications in ruggedized embedded systems.
FAQ
What is the maximum operating voltage for SN74AC241PW?
The SN74AC241PW supports a supply voltage range of 2V to 6V. Its inputs tolerate voltages up to 6V regardless of VCC level, enabling robust interfacing with higher-voltage peripherals. Absolute maximum ratings specify VCC up to 7V, but continuous operation above 6V is not recommended per TI's recommended operating conditions.
Does SN74AC241PW support 3.3V logic systems?
Yes, SN74AC241PW fully supports 3.3V operation. At VCC = 3.3V ± 0.3V, it delivers tPLH/tPHL ≤ 10ns and maintains VIH = 2.1V / VIL = 0.9V, providing >0.6V noise margin. Its rail-to-rail input tolerance also allows direct connection to 5V signals without damage or level shifting.
How many independent output-enable controls does SN74AC241PW have?
SN74AC241PW has two independent output-enable inputs: 1OE (active-low) controls the first four outputs (1Y1–1Y4), and 2OE (active-high) controls the second four outputs (2Y1–2Y4). This dual-control architecture enables selective channel activation for time-multiplexed bus sharing or partial system power-down.
What is the thermal resistance (θJA) of SN74AC241PW in its TSSOP-20 package?
The junction-to-ambient thermal resistance (θJA) of SN74AC241PW in the PW (TSSOP-20) package is 126.2°C/W, as specified in TI's SCAS513G datasheet revision March 2024. This value assumes standard JEDEC high-K board conditions; actual performance improves with internal copper planes and thermal vias.
Can SN74AC241PW drive standard TTL loads?
Yes, SN74AC241PW can drive standard TTL loads. At VCC = 5V, it delivers IOH = –24mA and IOL = 24mA, exceeding the ±0.4mA requirement of legacy TTL. Its VOH ≥ 4.4V and VOL ≤ 0.44V at full drive ensure solid logic-level compatibility with 74LS and 74F families.
SN74AC241PW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
SN74AC241PW FAQ
1.How can I place an order for SN74AC241PW through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AC241PW 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 SN74AC241PW reliable?
The price and inventory of SN74AC241PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AC241PW is usually 5 days.
3.What payment methods are accepted for SN74AC241PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AC241PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AC241PW?
SN74AC241PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AC241PW 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 SN74AC241PW?
For technical support, including SN74AC241PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AC241PW requirements.
6.How does Aetrix verify that SN74AC241PW is sourced from the original manufacturer or authorized distributors?
All SN74AC241PW 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 SN74AC241PW meets industry standards.
7.What is the process for return or replacement of SN74AC241PW?
All SN74AC241PW units undergo pre-shipment inspection (PSI). If there is an issue with SN74AC241PW, 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 SN74AC241PW part is unused and in its original packaging.
Return procedure for SN74AC241PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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