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Texas Instruments SN74HC241PWR
- Part No.:
- SN74HC241PWR
- Manufacturer:
- Texas Instruments
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74HC241PWR.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,557
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Product details
Overview
SN74HC241PWR from Texas Instruments is an octal noninverting 3-state buffer/line driver IC designed for memory address, clock, and bus signal conditioning in industrial and embedded systems. It operates from 2 V to 6 V, delivers ±6 mA output drive at 5 V, exhibits typical propagation delay of 11 ns, and draws ≤80 μA ICC, enabling low-power bidirectional bus interfacing in compact TSSOP-20 layouts.
For engineers reviewing the SN74HC241PWR datasheet, SN74HC241PWR pinout, SN74HC241PWR application, or SN74HC241PWR equivalent, this page delivers verified electrical specs, functional mode behavior, package-specific thermal metrics, real-world use cases in address/data bus isolation, and validated alternative options for system-level design continuity.
Technical Context
The SN74HC241PWR implements two independent 4-bit noninverting buffers with separate 3-state control inputs (1OE and 2OE), allowing selective enable/disable of each half. Its CMOS HCMOS logic family ensures rail-to-rail input compatibility and high noise immunity across the full 2–6 V supply range.
Each buffer passes A-input data to Y-outputs when its OE is asserted low (1OE = L) or high (2OE = H); otherwise, outputs enter high-impedance state. This dual-control architecture supports flexible bus arbitration and memory address latching without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - Enables direct interface with 3.3 V and 5 V logic domains without level shifters. |
| Output Drive Strength | ±6 mA at 5 V - Sufficient to drive 15 LSTTL loads, supporting legacy TTL-compatible bus loading. |
| Propagation Delay (tpd) | 11 ns typical at 4.5 V, CL = 50 pF - Ensures timing-critical clock distribution and address strobing in high-speed microcontroller peripherals. |
| Quiescent Current (ICC) | ≤80 μA max at 6 V - Minimizes standby power in battery-backed or energy-sensitive applications. |
| Input Leakage Current | ≤1 μA max - Prevents unintended logic transitions on floating or weakly driven control lines. |
| 3-State Enable Timing (ten/tdis) | 15–32 ns at 6 V - Guarantees clean bus release and acquisition windows during multiplexed data transfers. |
| Operating Temperature | −40 °C to +85 °C - Qualified for industrial-grade operation in extended ambient environments. |
Pinout & Package
TSSOP-20 package (6.50 mm × 4.40 mm, 1.2 mm max height), RoHS-compliant, NIPDAU lead finish, MSL Level-1, 2000-unit tape-and-reel delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | A1–A8 Inputs | Noninverting data inputs for eight buffer channels; accept 2–6 V logic levels. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Y1–Y8 Outputs | 3-state buffered outputs; high-impedance when respective OE is inactive. |
| 17 | 1OE | Active-low enable for first four buffers (A1–A4 → Y1–Y4). |
| 18 | GND | Ground reference for all logic and power domains. |
| 19 | VCC | Positive supply rail (2–6 V); requires local 0.1 μF bypass capacitor. |
| 20 | 2OE | Active-high enable for second four buffers (A5–A8 → Y5–Y8). |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2–6 V operation eliminates need for dedicated voltage regulators in mixed-supply systems. |
| High-Current Outputs | ±6 mA drive capability ensures robust signal integrity across loaded PCB traces and backplanes. |
| Ultra-Low ICC | 80 μA max quiescent current enables long-term operation in always-on monitoring circuits. |
| Fast Switching | 11 ns typical tpd supports >30 MHz clock distribution and address setup/hold compliance. |
| Dual Independent OE Control | Separate 1OE (active-low) and 2OE (active-high) permits asymmetric bus partitioning and hierarchical enable sequencing. |
Applications
| Memory Address Buffering | Microcontroller Bus Expansion |
|---|---|
Use Scenario: Isolating and driving 8-bit address lines between a microcontroller and external SRAM or EPROM. IC Role / Device Role / Timing Role: Noninverting 3-state buffer that enables/disables address signals during memory read/write cycles via OE control. Use Value: Prevents bus contention during multi-device access while maintaining nanosecond-level timing margins for address setup. | Use Scenario: Expanding GPIO count by connecting parallel I/O ports to a shared data bus. IC Role / Device Role / Timing Role: Bidirectional bus driver that isolates peripheral modules until actively enabled by MCU firmware. Use Value: Reduces PCB routing complexity and eliminates need for discrete pull-up networks on shared data paths. |
| Clock Signal Distribution | Legacy TTL System Interface |
Use Scenario: Fan-out and level translation of a master system clock to multiple synchronous peripherals. IC Role / Device Role / Timing Role: Low-skew, noninverting clock buffer with 3-state capability for dynamic clock gating. Use Value: Maintains sub-nanosecond edge alignment across eight outputs, critical for synchronous FIFO and DMA timing. | Use Scenario: Interfacing modern 3.3 V microcontrollers with legacy 5 V TTL peripherals (e.g., UART transceivers, display controllers). IC Role / Device Role / Timing Role: Voltage-tolerant logic buffer that drives LSTTL loads without external level-shifting circuitry. Use Value: Delivers guaranteed 15 LSTTL load drive at 5 V while consuming <80 μA in idle state-replacing discrete transistor arrays. |
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 |
|---|---|---|---|
| SN74HCT241PW | TTL-compatible input thresholds (VIH = 2.0 V min), identical pinout and function. | Better suited for mixed 5 V TTL/CMOS systems where input noise margin must match legacy TTL logic families. | Select SN74HCT241PW when interfacing with older 5 V TTL devices requiring guaranteed VIH/VIL thresholds. |
| 74LCX241MTCX | Lower VCC range (2.0–3.6 V), higher speed (tpd = 5.3 ns typ), different pin assignment for OE controls. | Optimized for 3.3 V-only systems with tighter timing budgets; not pin-compatible with SN74HC241PWR. | Choose 74LCX241MTCX only for new 3.3 V designs demanding sub-6 ns propagation and lower dynamic power. |
Compared with SN74HCT241PW and 74LCX241MTCX, the SN74HC241PWR offers universal 2–6 V operation and proven industrial reliability, making it the preferred choice for mixed-voltage legacy upgrades and cost-sensitive production where pin compatibility and broad supply tolerance are mandatory.
Availability
SN74HC241PWR is available at Aetrix Electronics and suitable for memory address buffering, microcontroller bus expansion, clock distribution, and legacy TTL system interface requiring stable component supply across industrial temperature ranges.
Supply support for SN74HC241PWR 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 for industrial, automotive, and communications markets.
The SN74HC241PWR belongs to TI's industry-standard 74HC logic family, engineered for high noise immunity, low power consumption, and seamless interoperability in mixed-voltage digital systems.
FAQ
What is the maximum operating voltage for SN74HC241PWR?
The SN74HC241PWR supports a supply voltage range of 2 V to 6 V. Absolute maximum rating is 7 V, but sustained operation above 6 V violates recommended conditions and risks reliability degradation. Always maintain VCC within 2–6 V for guaranteed functionality and lifetime performance per TI's SCLS300E datasheet.
Does SN74HC241PWR support true bidirectional data flow?
No, the SN74HC241PWR is a unidirectional noninverting buffer: data flows only from A inputs to Y outputs. It does not support automatic direction sensing or internal bus arbitration. Bidirectional operation requires external control of 1OE and 2OE to manage enable timing, but signal path remains fixed A→Y.
What is the thermal resistance (RθJA) of SN74HC241PWR in its TSSOP-20 package?
The junction-to-ambient thermal resistance (RθJA) for SN74HC241PWR in the TSSOP-20 (PW) package is 131.8 °C/W, as specified in Section 5.3 of the TI SCLS300E datasheet. This value assumes standard JEDEC 2-layer board conditions and informs thermal design for continuous operation at rated load.
Can unused inputs on SN74HC241PWR be left floating?
No. All unused inputs on SN74HC241PWR must be tied to VCC or GND to prevent undefined logic states and increased ICC. Floating CMOS inputs cause unpredictable switching, elevated power consumption, and potential latch-up. TI's application report SCBA004 mandates hard-wiring unused pins to valid logic levels.
Is SN74HC241PWR pin-compatible with SN74HC240PWR?
No. While both are octal 3-state buffers, SN74HC241PWR is noninverting (A→Y), whereas SN74HC240PWR is inverting (A→Y̅). Their pinouts differ: SN74HC241PWR uses pin 20 for active-high 2OE, while SN74HC240PWR assigns pin 20 to active-low 2OE. Substitution requires schematic and layout revision.
SN74HC241PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
SN74HC241PWR FAQ
1.How can I place an order for SN74HC241PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC241PWR 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 SN74HC241PWR reliable?
The price and inventory of SN74HC241PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC241PWR is usually 5 days.
3.What payment methods are accepted for SN74HC241PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC241PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC241PWR?
SN74HC241PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC241PWR 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 SN74HC241PWR?
For technical support, including SN74HC241PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC241PWR requirements.
6.How does Aetrix verify that SN74HC241PWR is sourced from the original manufacturer or authorized distributors?
All SN74HC241PWR 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 SN74HC241PWR meets industry standards.
7.What is the process for return or replacement of SN74HC241PWR?
All SN74HC241PWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC241PWR, 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 SN74HC241PWR part is unused and in its original packaging.
Return procedure for SN74HC241PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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