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

Texas Instruments SN74F241N

Name: SN74F241N
Brand: Texas Instruments
SKU: SN74F241N
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74F241N

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-DIP (0.300", 7.62mm)

Datasheet:: SN74F241N.pdf

Description:: IC BUF NON-INVERT 5.5V 20DIP

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Product details

Overview

SN74F241N from Texas Instruments is an octal noninverting buffer/driver with 3-state outputs, designed for memory address driving and bus interfacing in TTL-compatible systems. It features dual independent 4-bit channels, active-low output-enable (1OE/2OE), 5 V nominal supply operation, 0°C to 70°C temperature range, and PDIP-20 package. It drives bus lines or buffers memory address registers in legacy computing and industrial control systems.

For engineers reviewing the SN74F241N datasheet, SN74F241N pinout, SN74F241N application, or SN74F241N equivalent, this page delivers verified electrical specs, functional truth tables, thermal limits, switching timing under load, and real-world substitution guidance - all specific to the SN74F241N PDIP variant.

Technical Context

The SN74F241N implements two independent 4-bit noninverting buffer sections, each with dedicated active-low output-enable inputs (1OE and 2OE). Its 3-state outputs support bidirectional bus contention management and memory address latching without external logic.

It operates strictly within TTL voltage thresholds: VIH = 2 V min, VIL = 0.8 V max, VOH = 2.4 V min at –12 mA, VOL = 0.55 V max at 64 mA. Propagation delays are specified at 1.7–6.5 ns (tPLH/tPHL) and 1.2–8.0 ns (output enable/disable transitions) under 50 pF capacitive load.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage (VCC)	4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL logic rails and noise margin compliance.
Operating Temperature	0°C to 70°C - qualified for commercial-grade embedded and industrial control applications.
Output Drive (IOL)	64 mA max - supports direct connection to multiple TTL inputs or moderate-capacitance buses without buffering.
Propagation Delay (tPLH/tPHL)	1.7–6.2 ns - enables high-speed address/data path buffering in 20–30 MHz system clock domains.
3-State Enable Time (tPZL)	1.2–8.0 ns - guarantees fast bus release for time-critical multiplexed memory or peripheral interfaces.
Input Clamp Current	–18 mA - protects against negative transients during hot insertion or ESD events on address/data lines.
Quiescent Current (ICC)	60–90 mA - reflects F-series TTL power consumption during active or disabled states, critical for thermal budgeting.

Pinout & Package

SN74F241N uses a 20-pin plastic dual in-line package (PDIP), 0.300" wide, with standard through-hole mounting and 0.1" pin pitch. Pin 1 is marked by a notch or dot at the top-left corner.

Pin/Terminal	Circuit Role	Design Meaning
1, 19	1OE, 2OE	Active-low output-enable controls first and second 4-bit buffer sections independently.
2, 4, 6, 8	1A1–1A4	Inputs to first 4-bit noninverting buffer channel.
3, 5, 7, 9	2Y4–2Y1	Outputs from second 4-bit buffer channel (pin order reversed per TI top-view convention).
11–14	1Y1–1Y4	Outputs from first 4-bit buffer channel, aligned left-to-right as labeled.
12, 13, 15, 17	2A1–2A4	Inputs to second 4-bit noninverting buffer channel.
10	GND	Ground reference for all logic and output stages.
20	VCC	+5 V power supply for TTL-level operation.

Key Features

Feature	Design Value
Dual independent 4-bit channels	Enables separate control of two memory banks or peripheral data groups using discrete OE signals.
3-state outputs with symmetrical OE	Eliminates bus contention in shared-address systems; allows seamless integration into multi-master architectures.
TTL-compatible input thresholds	VIH ≥ 2 V and VIL ≤ 0.8 V ensure reliable interfacing with legacy 74LS, 74S, and other F-series devices.
High sink current (64 mA)	Drives up to 20 standard TTL loads directly, reducing need for external line drivers in dense PCB layouts.
Fast enable/disable transitions	tPZL/tPHZ ≤ 8.0 ns minimizes bus turnaround time in burst-mode memory access cycles.

Applications

Memory Address Buffering	Legacy Bus Interface
Use Scenario: Buffering 16-bit CPU address bus to drive multiple memory ICs with capacitive loading > 100 pF. IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating CPU from memory module input capacitance while enabling bank-select arbitration. Use Value: Prevents address skew and timing violations by maintaining signal integrity across long traces and fanout-heavy loads.	Use Scenario: Interfacing Z80 or 8086-based controllers to ISA-style peripheral cards with shared data/address buses. IC Role / Device Role / Timing Role: Bidirectional bus driver managing direction control via OE signals synchronized to bus grant cycles. Use Value: Enables clean bus handoff between CPU and DMA controllers without external transceivers or glue logic.
Industrial Control Backplane	Test Equipment Signal Routing
Use Scenario: Distributing microcontroller-generated I/O addresses across modular PLC backplane slots. IC Role / Device Role / Timing Role: Address decoder companion that gates and buffers slot-select signals before CPLD/FPGA decoding. Use Value: Reduces propagation delay accumulation in multi-stage decode trees, preserving setup/hold margins for synchronous modules.	Use Scenario: Reconfigurable signal routing in automated test equipment where DUT address lines must be dynamically isolated. IC Role / Device Role / Timing Role: Programmable bus gate controlled by test sequencer to route stimulus signals to selected DUT pins. Use Value: Provides deterministic 3-state isolation with sub-10 ns enable latency, critical for high-speed boundary-scan verification.

Memory Address Buffering

Legacy Bus Interface

Use Scenario: Buffering 16-bit CPU address bus to drive multiple memory ICs with capacitive loading > 100 pF.

IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating CPU from memory module input capacitance while enabling bank-select arbitration.

Use Value: Prevents address skew and timing violations by maintaining signal integrity across long traces and fanout-heavy loads.

Use Scenario: Interfacing Z80 or 8086-based controllers to ISA-style peripheral cards with shared data/address buses.

IC Role / Device Role / Timing Role: Bidirectional bus driver managing direction control via OE signals synchronized to bus grant cycles.

Use Value: Enables clean bus handoff between CPU and DMA controllers without external transceivers or glue logic.

Industrial Control Backplane

Test Equipment Signal Routing

Use Scenario: Distributing microcontroller-generated I/O addresses across modular PLC backplane slots.

IC Role / Device Role / Timing Role: Address decoder companion that gates and buffers slot-select signals before CPLD/FPGA decoding.

Use Value: Reduces propagation delay accumulation in multi-stage decode trees, preserving setup/hold margins for synchronous modules.

Use Scenario: Reconfigurable signal routing in automated test equipment where DUT address lines must be dynamically isolated.

IC Role / Device Role / Timing Role: Programmable bus gate controlled by test sequencer to route stimulus signals to selected DUT pins.

Use Value: Provides deterministic 3-state isolation with sub-10 ns enable latency, critical for high-speed boundary-scan verification.

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
SN74LS241N	Lower drive (24 mA IOL), slower speed (15–25 ns delays), higher noise immunity (VIH = 2.0 V, same as SN74F241N).	Preferred in low-power, noise-prone environments where speed < 10 MHz suffices and heat dissipation is constrained.	Select when legacy LS-family compatibility or reduced ICC (20 mA typical) outweighs speed requirements.
SN74ACT241N	CMOS-compatible inputs (VIH = 3.5 V), rail-to-rail outputs, lower ICC (< 4 µA), but requires 4.5–5.5 V supply like SN74F241N.	Suitable for mixed-voltage systems interfacing 3.3 V controllers to 5 V peripherals via level-shifting buffers.	Choose when integrating with ACT-series logic or requiring near-zero static power in standby modes.

Compared with SN74F241N, SN74LS241N trades speed and drive strength for lower power and better noise margin, while SN74ACT241N offers CMOS input compatibility and microamp quiescent current - making it viable for hybrid voltage domain designs where SN74F241N's pure TTL interface is insufficient.

Availability

SN74F241N is available at Aetrix Electronics and suitable for memory address buffering, legacy bus interfacing, industrial control backplanes, and test equipment signal routing requiring stable component supply across extended production lifecycles.

Supply support for SN74F241N 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, delivering analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.

The SN74F241N belongs to TI's 74F Fast TTL logic family, engineered for high-speed memory and bus interface applications where propagation delay and drive strength are critical in 5 V digital systems.

FAQ

What is the maximum output sink current specification for SN74F241N?

The SN74F241N supports a maximum low-level output current (IOL) of 64 mA per output, as specified under recommended operating conditions at VCC = 4.5 V and TA = 0°C to 70°C. This rating ensures robust drive capability for TTL fanout and moderate bus capacitance without external amplification. Exceeding this limit risks parametric shift or reliability degradation over time.

Does SN74F241N support mixed-voltage interfacing, such as 3.3 V inputs?

No, SN74F241N does not support reliable 3.3 V input interfacing. Its input high-level threshold (VIH) is specified at 2.0 V minimum, but its input structure is TTL-compatible and optimized for 5 V logic families. Applying 3.3 V signals may result in marginal noise margins or undefined behavior, especially across temperature extremes. For 3.3 V–5 V translation, use SN74ACT241N instead.

What is the function of pins 1 and 19 on SN74F241N?

Pins 1 and 19 are the active-low output-enable inputs 1OE and 2OE, respectively. When pulled low, they enable the corresponding 4-bit buffer section (1A→1Y or 2A→2Y); when high, those outputs enter high-impedance (3-state) mode. This allows independent control of two data paths - essential for memory bank selection or bus arbitration in SN74F241N-based designs.

Can SN74F241N operate at 3.3 V supply voltage?

No, SN74F241N is not characterized or guaranteed for operation at 3.3 V. Its recommended VCC range is strictly 4.5 V to 5.5 V, and absolute maximum ratings define –0.5 V to 7 V. Operation below 4.5 V may cause failure to meet VOH/VOL specs, increased propagation delay, or metastability - particularly at temperature extremes. Use SN74LVC241 for 3.3 V operation.

Is SN74F241N pin-compatible with SN74F240N?

No, SN74F241N is not pin-compatible with SN74F240N. While both are octal 3-state buffers in PDIP-20 packages, SN74F240N provides inverting outputs and different pin assignments for inputs and enables. The SN74F241N has noninverting outputs and distinct pin mapping (e.g., 1A1 on pin 2 vs. 1A1 on pin 3 for SN74F240N), requiring PCB layout changes for substitution.

SN74F241N Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74F

Package/Case:: 20-DIP (0.300", 7.62mm)

Packaging:: Bulk

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:: 15mA, 64mA

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 20-PDIP

SN74F241N FAQ

1.How can I place an order for SN74F241N through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74F241N 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 SN74F241N reliable?

The price and inventory of SN74F241N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74F241N is usually 5 days.

3.What payment methods are accepted for SN74F241N?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74F241N transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74F241N?

SN74F241N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74F241N 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 SN74F241N?

For technical support, including SN74F241N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74F241N requirements.

6.How does Aetrix verify that SN74F241N is sourced from the original manufacturer or authorized distributors?

All SN74F241N 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 SN74F241N meets industry standards.

7.What is the process for return or replacement of SN74F241N?

All SN74F241N units undergo pre-shipment inspection (PSI). If there is an issue with SN74F241N, 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 SN74F241N part is unused and in its original packaging.

Return procedure for SN74F241N:

1.Submit a request within 90 days.

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

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