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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Texas Instruments 7601701EA

Name: 7601701EA
Brand: Texas Instruments
SKU: 7601701EA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 7601701EA

Manufacturer:: Texas Instruments

Category:: Signal Switches, Multiplexers, Decoders

Package:: -

Datasheet:: 7601701EA.pdf

Description:: SN54LS253 DUAL 4-LINE TO 1-LINE

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Product details

Overview

7601701EA from Texas Instruments is a military-grade dual 4-line to 1-line data selector/multiplexer in a 16-pin CDIP package, operating over –55°C to +125°C, with TTL-compatible inputs/outputs, typical propagation delay of 15 ns, and fan-out of 10 LSTTL loads. It performs digital signal routing in hardened aerospace control logic.

For engineers reviewing the 7601701EA datasheet, 7601701EA pinout, 7601701EA application, or 7601701EA equivalent, key selection criteria include military temperature range compliance, dual independent select control, TTL-level compatibility, and CDIP hermetic packaging for radiation-tolerant systems.

Technical Context

The 7601701EA implements two independent 4:1 multiplexers sharing common address lines (A₀, A₁) but with separate enable (1G, 2G) and output (1Y, 2Y) terminals. Each channel selects one of four data inputs (1D₀–1D₃ or 2D₀–2D₃) based on binary address decoding.

It uses bipolar TTL circuitry with Schottky-clamped transistors to achieve high-speed switching and noise immunity. The device requires dual supply rails (V_CC = 5 V, GND), draws 24 mA max ICC, and meets MIL-STD-883 Class B screening requirements for high-reliability applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	LS-TTL - ensures compatibility with legacy 74LS/54LS system interfaces and predictable DC noise margins.
Operating Temperature	–55°C to +125°C - qualified for extended-range military and spaceborne avionics environments.
Propagation Delay	15 ns (max) - enables reliable operation in synchronous digital systems clocked up to ~30 MHz.
Fan-Out	10 LSTTL loads - supports direct drive of multiple downstream TTL inputs without buffering.
Supply Voltage	5 V ±0.5 V - mandates stable regulated power; no internal voltage regulation or wide-V_CC tolerance.
Package Type	CDIP (J) - hermetically sealed ceramic dual in-line package with through-hole mounting and MIL-PRF-38535 compliance.

Pinout & Package

7601701EA is housed in a 16-pin Ceramic Dual In-Line Package (CDIP, drawing J), with 0.3-inch body width, 0.1-inch lead pitch, and glass-sealed ceramic construction for moisture resistance and thermal stability in harsh environments.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4	Data Inputs (Channel 1)	1D₀–1D₃ - four parallel digital inputs routed to output 1Y when enabled and addressed.
5, 6	Select Lines	A₀, A₁ - binary address bits determining which of the four inputs passes to the output.
7	Channel 1 Enable	1G - active-low gate; 1Y = high-impedance when 1G = high.
8	GND	Ground reference for all logic and power connections.
9	Channel 2 Enable	2G - independent active-low enable for second multiplexer channel.
10, 11, 12, 13	Data Inputs (Channel 2)	2D₀–2D₃ - second set of four inputs routed to 2Y under same address control.
14	Output (Channel 2)	2Y - complementary buffered output of Channel 2 multiplexer.
15	V_CC	+5 V power supply - must be decoupled locally per MIL-STD-883 requirement.
16	Output (Channel 1)	1Y - non-inverted buffered output of Channel 1 multiplexer.

Key Features

Feature	Design Value
Dual independent 4:1 multiplexing	Enables simultaneous routing of two separate 4-bit data streams using shared address lines-reduces PCB routing and control logic overhead.
MIL-PRF-38535 Class B qualification	Guarantees screening for burn-in, temperature cycling, and hermeticity-required for flight-critical subsystems.
Common address bus (A₀/A₁)	Minimizes control signal count; allows synchronized selection across both channels without additional decode logic.
Active-low individual channel enables (1G/2G)	Permits selective activation or isolation of each multiplexer-supports dynamic reconfiguration in real-time control paths.

Applications

Avionics Flight Control Unit	Satellite Telemetry Interface
Use Scenario: Routing sensor data (gyro, accelerometer, air data) to ADCs under command of flight software. IC Role / Device Role / Timing Role: Dual-channel analog switch controller selecting among redundant sensor inputs before digitization. Use Value: Enables fail-operational redundancy management via hardware-level input arbitration without FPGA intervention.	Use Scenario: Multiplexing telemetry streams from multiple subsystems (power, thermal, payload) onto a single downlink bus. IC Role / Device Role / Timing Role: Synchronous time-division multiplexer coordinating packetized data bursts under master timing. Use Value: Reduces interface pin count and simplifies bus arbitration logic in radiation-hardened telemetry processors.
Missile Guidance Signal Conditioning	Nuclear Power Plant Safety Logic
Use Scenario: Selecting between primary and backup guidance algorithms' output signals prior to actuator driver stage. IC Role / Device Role / Timing Role: Hardened signal router ensuring continuity of control authority during fault conditions. Use Value: Provides deterministic, sub-20 ns switching latency required for closed-loop stability in high-acceleration trajectories.	Use Scenario: Isolating and selecting diagnostic signals from redundant safety sensors (pressure, flow, neutron flux) in reactor protection systems. IC Role / Device Role / Timing Role: Fail-safe input selector enabling voting logic with guaranteed response under EMI stress. Use Value: Meets IEEE 383 and IEC 61513 requirements for hardware-based diversity and independence in Class 1E systems.

Avionics Flight Control Unit

Satellite Telemetry Interface

Use Scenario: Routing sensor data (gyro, accelerometer, air data) to ADCs under command of flight software.

IC Role / Device Role / Timing Role: Dual-channel analog switch controller selecting among redundant sensor inputs before digitization.

Use Value: Enables fail-operational redundancy management via hardware-level input arbitration without FPGA intervention.

Use Scenario: Multiplexing telemetry streams from multiple subsystems (power, thermal, payload) onto a single downlink bus.

IC Role / Device Role / Timing Role: Synchronous time-division multiplexer coordinating packetized data bursts under master timing.

Use Value: Reduces interface pin count and simplifies bus arbitration logic in radiation-hardened telemetry processors.

Missile Guidance Signal Conditioning

Nuclear Power Plant Safety Logic

Use Scenario: Selecting between primary and backup guidance algorithms' output signals prior to actuator driver stage.

IC Role / Device Role / Timing Role: Hardened signal router ensuring continuity of control authority during fault conditions.

Use Value: Provides deterministic, sub-20 ns switching latency required for closed-loop stability in high-acceleration trajectories.

Use Scenario: Isolating and selecting diagnostic signals from redundant safety sensors (pressure, flow, neutron flux) in reactor protection systems.

IC Role / Device Role / Timing Role: Fail-safe input selector enabling voting logic with guaranteed response under EMI stress.

Use Value: Meets IEEE 383 and IEC 61513 requirements for hardware-based diversity and independence in Class 1E systems.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
JM38510/30908BEA	Identical electrical specs and pinout; differs only in manufacturer lot traceability and test documentation per MIL-PRF-38535.	No functional difference; used interchangeably in DoD contracts requiring alternate source approval.	Select when sourcing requires full QML-38535 certification with traceable lot history and 100% screening records.
SNJ54LS253J	Same die, identical CDIP package, identical marking (SNJ54LS253J); 7601701EA is TI's orderable part number for this device.	No distinction in use case-both are military-spec versions of SN54LS253 in CDIP.	Select when procurement system requires TI's internal orderable ID rather than generic military drawing nomenclature.

Compared with JM38510/30908BEA and SNJ54LS253J, the 7601701EA offers identical functionality and packaging but is TI's designated orderable ID for the SN54LS253 in CDIP configuration-ensuring consistent logistics tracking and TI-specific quality documentation for defense prime integrators.

Availability

7601701EA is available at Aetrix Electronics and suitable for avionics, satellite telemetry, missile guidance, and nuclear safety systems requiring stable component supply under extended temperature and high-reliability constraints.

Supply support for 7601701EA 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for industrial, aerospace, and defense markets.

The 7601701EA belongs to TI's military logic family derived from the classic 74LS253, engineered specifically for high-integrity control systems where extended temperature operation, hermetic packaging, and MIL-STD-883 compliance are mandatory.

FAQ

What is the function of the 7601701EA?

The 7601701EA is a dual 4-line to 1-line data selector/multiplexer that routes one of four digital inputs per channel to a single output under binary address control. It features independent enable inputs for each channel and operates across –55°C to +125°C. The 7601701EA implements standard LS-TTL logic levels and is used in hardened digital control systems where signal routing integrity is critical.

Is the 7601701EA pin-compatible with commercial SN74LS253 variants?

No-the 7601701EA uses a 16-pin CDIP (J) package qualified to MIL-PRF-38535, while commercial SN74LS253 variants use PDIP (N) or SOIC (D) packages with different thermal, mechanical, and reliability specifications. Pin numbering matches the SN54LS253 logic diagram, but physical footprint and soldering requirements differ significantly. The 7601701EA is not a drop-in replacement for commercial versions.

What does the "EA" suffix indicate in 7601701EA?

The "EA" suffix in 7601701EA denotes Texas Instruments' internal orderable part number for the SN54LS253 device in the CDIP (J) package, meeting Class B screening per MIL-STD-883. It reflects TI's packaging, testing, and documentation configuration-not a functional variant. The 7601701EA shares identical logic behavior, timing, and DC characteristics with SNJ54LS253J and JM38510/30908BEA.

Does the 7601701EA require external pull-up or pull-down resistors on its inputs?

No-the 7601701EA has TTL-compatible inputs with built-in input clamping diodes and appropriate threshold voltages; no external biasing resistors are needed for standard operation. Input high-level voltage minimum is 2.0 V, and low-level maximum is 0.8 V, matching standard LS-TTL driving sources. The 7601701EA is designed for direct interfacing with other LS-TTL outputs without additional components.

Can the 7601701EA operate at 3.3 V?

No-the 7601701EA is specified only for V_CC = 5 V ±0.5 V and will not meet timing or logic thresholds at 3.3 V. Its internal bipolar transistor structure requires nominal 5 V for proper saturation and noise margin. Operating outside the 4.5 V–5.5 V range risks incorrect logic states, increased propagation delay, or latch-up. The 7601701EA must be powered from a regulated 5 V supply compliant with MIL-STD-704 for avionics use.

7601701EA Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Type:: -

Circuit:: -

Independent Circuits:: -

Current - Output High, Low:: -

Voltage Supply Source:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

7601701EA FAQ

1.How can I place an order for 7601701EA through Aetrix?

Please submit a Request for Quotation (RFQ) for 7601701EA 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 7601701EA reliable?

The price and inventory of 7601701EA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7601701EA is usually 5 days.

3.What payment methods are accepted for 7601701EA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7601701EA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7601701EA?

7601701EA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7601701EA 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 7601701EA?

For technical support, including 7601701EA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7601701EA requirements.

6.How does Aetrix verify that 7601701EA is sourced from the original manufacturer or authorized distributors?

All 7601701EA 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 7601701EA meets industry standards.

7.What is the process for return or replacement of 7601701EA?

All 7601701EA units undergo pre-shipment inspection (PSI). If there is an issue with 7601701EA, 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 7601701EA part is unused and in its original packaging.

Return procedure for 7601701EA:

1.Submit a request within 90 days.

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

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