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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Texas Instruments 74ACT11241DW

Name: 74ACT11241DW
Brand: Texas Instruments
SKU: 74ACT11241DW
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ACT11241DW

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: -

Datasheet:: 74ACT11241DW.pdf

Description:: BUS DRIVER, ACT SERIES, 4-BIT,

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74ACT11241DW from Texas Instruments is an octal noninverting 3-state buffer/line driver with dual independent output-enable controls (1G, 2G), TTL-compatible inputs, and EPIC CMOS process technology. It operates from −40°C to 85°C at 4.5–5.5 V, delivers ±24 mA output drive, and supports memory address bus driving and clock distribution in high-density digital systems.

For engineers reviewing the 74ACT11241DW datasheet, 74ACT11241DW pinout, 74ACT11241DW application, or 74ACT11241DW equivalent, key selection criteria include dual active-low enable logic, flow-through pinout for PCB noise reduction, guaranteed 3.94 V VOH at 4.5 V/−24 mA, and 1.5 ns minimum propagation delay across temperature.

Technical Context

This device implements two independent 4-bit noninverting buffers, each with dedicated active-low output-enable (1G, 2G). Each buffer group drives four outputs (1Y1–1Y4, 2Y1–2Y4) with symmetrical enable timing and latch-up immunity of 500 mA at 125°C.

The EPIC 1-μm CMOS process enables TTL-voltage compatibility (VIH = 2 V, VIL = 0.8 V) while maintaining low power dissipation capacitance (27 pF enabled, 9 pF disabled) and fast switching (tPLH/tPHL ≤ 10 ns at 5 V).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - ensures stable operation across industrial rail tolerances and noise margins.
Output Drive	±24 mA - sufficient to drive 50-pF loads at ≤10 ns propagation delay without signal degradation.
VOH / VOL	≥3.94 V / ≤0.44 V at 4.5 V, −24/+24 mA - guarantees robust TTL and CMOS logic-level interfacing.
Propagation Delay	≤10 ns (A→Y), ≤12.3 ns (G→Y) - enables reliable timing in 100-MHz bus environments.
Input Compatibility	TTL voltage thresholds (VIH = 2 V, VIL = 0.8 V) - allows direct connection to legacy TTL logic without level shifters.
Power Dissipation Cap.	27 pF per buffer (enabled), 9 pF (disabled) - reduces dynamic power in high-frequency clock/buffer applications.

Pinout & Package

74ACT11241DW uses a 24-pin plastic SOIC (DW) package with center-aligned VCC (pins 18, 19) and GND (pins 12, 13, 14, 15) to minimize high-speed switching noise. Flow-through architecture places inputs on one side and outputs on the opposite side.

Pin/Terminal	Circuit Role	Design Meaning
1G, 2G	Active-low output enable	Independent control of Group 1 (1Y1–1Y4) and Group 2 (2Y1–2Y4); high = high-impedance state.
1A1–1A4, 2A1–2A4	Data inputs	Noninverting inputs for respective output groups; TTL-compatible voltage thresholds.
1Y1–1Y4, 2Y1–2Y4	Buffered outputs	3-state outputs capable of ±24 mA drive; support bus sharing and memory address latching.
VCC (pins 18, 19)	Power supply	Dual center VCC pins reduce IR drop and improve decoupling effectiveness for high-speed switching.
GND (pins 12, 13, 14, 15)	Ground reference	Four adjacent GND pins provide low-inductance return paths and suppress ground bounce.

Key Features

Feature	Design Value
Flow-through architecture	Input-to-output signal path crosses chip diagonally, enabling straight PCB trace routing and minimizing crosstalk.
Center-pin VCC/GND configuration	Reduces simultaneous switching noise by localizing power/ground return paths near active I/O banks.
EPIC CMOS process	Delivers TTL-compatible input levels with CMOS power efficiency and 500-mA latch-up immunity at 125°C.
Dual independent output enables	Allows selective disabling of either 4-bit buffer group without affecting the other-ideal for segmented bus control.

Applications

Memory Address Buffering	Clock Distribution
Use Scenario: Driving 16-bit address buses between microprocessor and SRAM/ROM in embedded controllers. IC Role / Device Role / Timing Role: Noninverting 3-state buffer with dual enables isolates address lines during DMA cycles and prevents bus contention. Use Value: Guaranteed 3.94 V VOH at 4.5 V ensures full logic-high margin into capacitive address traces up to 15 cm.	Use Scenario: Distributing system clock to multiple synchronous peripherals (e.g., UART, SPI, timer modules). IC Role / Device Role / Timing Role: Low-skew, high-drive buffer with matched tPLH/tPHL (≤10 ns) maintains clock edge integrity across fanout. Use Value: 27 pF enabled power dissipation capacitance minimizes jitter accumulation in multi-load clock trees.
Bus Transceiver Interface	Legacy TTL System Interfacing
Use Scenario: Bidirectional data bus isolation between CPU and peripheral ASICs using external direction control. IC Role / Device Role / Timing Role: Dual-group 3-state buffering enables time-multiplexed read/write phases on shared data lanes. Use Value: Independent 1G/2G enables allow staggered enable timing to eliminate bus turnaround glitches.	Use Scenario: Interfacing modern CMOS microcontrollers with legacy TTL peripherals (e.g., 74LS logic, EPROMs). IC Role / Device Role / Timing Role: Level-shifting buffer that accepts 2 V VIH and delivers >3.9 V VOH compatible with LS-family inputs. Use Value: Eliminates need for discrete resistors or dedicated level translators in mixed-logic designs.

Memory Address Buffering

Clock Distribution

Use Scenario: Driving 16-bit address buses between microprocessor and SRAM/ROM in embedded controllers.

IC Role / Device Role / Timing Role: Noninverting 3-state buffer with dual enables isolates address lines during DMA cycles and prevents bus contention.

Use Value: Guaranteed 3.94 V VOH at 4.5 V ensures full logic-high margin into capacitive address traces up to 15 cm.

Use Scenario: Distributing system clock to multiple synchronous peripherals (e.g., UART, SPI, timer modules).

IC Role / Device Role / Timing Role: Low-skew, high-drive buffer with matched tPLH/tPHL (≤10 ns) maintains clock edge integrity across fanout.

Use Value: 27 pF enabled power dissipation capacitance minimizes jitter accumulation in multi-load clock trees.

Bus Transceiver Interface

Legacy TTL System Interfacing

Use Scenario: Bidirectional data bus isolation between CPU and peripheral ASICs using external direction control.

IC Role / Device Role / Timing Role: Dual-group 3-state buffering enables time-multiplexed read/write phases on shared data lanes.

Use Value: Independent 1G/2G enables allow staggered enable timing to eliminate bus turnaround glitches.

Use Scenario: Interfacing modern CMOS microcontrollers with legacy TTL peripherals (e.g., 74LS logic, EPROMs).

IC Role / Device Role / Timing Role: Level-shifting buffer that accepts 2 V VIH and delivers >3.9 V VOH compatible with LS-family inputs.

Use Value: Eliminates need for discrete resistors or dedicated level translators in mixed-logic designs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal noninverting 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74ACT244DW	Single 8-bit group with shared OE; no dual independent enables.	Lacks per-group enable control-unsuitable for segmented bus arbitration.	Select 74ACT11241DW when independent control of two 4-bit sub-buses is required.
74ACT11240DW	Inverting output logic (Y = A̅); otherwise identical pinout, timing, and drive.	Used where signal polarity inversion is needed in address or control paths.	Choose 74ACT11241DW for noninverting buffering; use 74ACT11240DW only if inversion is functionally required.

Compared with 74ACT244DW and 74ACT11240DW, the 74ACT11241DW uniquely provides dual independent enables and noninverting logic in a single 24-pin SOIC, enabling flexible bus segmentation and eliminating external inverters in polarity-critical paths.

Availability

74ACT11241DW is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, and bus transceiver interface applications requiring stable component supply, long-term industrial lifecycle support, and verified second-source availability.

Supply support for 74ACT11241DW 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 founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.

The ACT family-including the 74ACT11241DW-is designed for high-speed, TTL-compatible CMOS logic in noise-sensitive, high-density digital systems requiring robust latch-up immunity and precise timing control.

FAQ

What is the operating temperature range for the 74ACT11241DW?

The 74ACT11241DW is characterized for operation from −40°C to +85°C, meeting industrial-grade environmental requirements. This range is explicitly defined in the recommended operating conditions table of the SCAS011B datasheet and validated across all electrical parameters including VOH, VOL, and propagation delay.

Does the 74ACT11241DW support TTL-level inputs?

Yes, the 74ACT11241DW features TTL-voltage-compatible inputs with VIH = 2.0 V (minimum) and VIL = 0.8 V (maximum) at VCC = 4.5–5.5 V. This allows direct interfacing with standard TTL logic families without external level-shifting circuitry.

What is the maximum output current capability of the 74ACT11241DW?

The 74ACT11241DW delivers ±24 mA DC output current per pin under recommended operating conditions. Absolute maximum ratings permit ±50 mA short-duration current, but sustained operation must remain within the ±24 mA specification to guarantee VOH ≥ 3.94 V and VOL ≤ 0.44 V.

How does the dual output-enable architecture of the 74ACT11241DW improve system design?

The 74ACT11241DW provides two independent active-low enables (1G and 2G), allowing separate control of its two 4-bit output groups. This enables selective bus segmentation, eliminates contention during partial bus updates, and simplifies timing in multi-peripheral clock or address distribution networks.

Is the 74ACT11241DW pin-compatible with other ACT-series octal buffers?

No-the 74ACT11241DW has a unique 24-pin DW package with dual enables and flow-through pinout. It is not pin-compatible with 20-pin devices like the 74ACT244 or 74ACT11240, which share the same pin count but differ in enable structure and logic polarity.

74ACT11241DW 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:: -

74ACT11241DW FAQ

1.How can I place an order for 74ACT11241DW through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ACT11241DW 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 74ACT11241DW reliable?

The price and inventory of 74ACT11241DW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT11241DW is usually 5 days.

3.What payment methods are accepted for 74ACT11241DW?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT11241DW transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ACT11241DW?

74ACT11241DW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ACT11241DW 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 74ACT11241DW?

For technical support, including 74ACT11241DW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT11241DW requirements.

6.How does Aetrix verify that 74ACT11241DW is sourced from the original manufacturer or authorized distributors?

All 74ACT11241DW 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 74ACT11241DW meets industry standards.

7.What is the process for return or replacement of 74ACT11241DW?

All 74ACT11241DW units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT11241DW, 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 74ACT11241DW part is unused and in its original packaging.

Return procedure for 74ACT11241DW:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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