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Home > Products > Integrated Circuits (ICs) > Logic > Flip Flops

Texas Instruments 8407301EA

Name: 8407301EA
Brand: Texas Instruments
SKU: 8407301EA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 8407301EA

Manufacturer:: Texas Instruments

Category:: Flip Flops

Package:: -

Datasheet:: 8407301EA.pdf

Description:: SN54HC174 HEX D-TYPE FLIP-FLOPS

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Product details

Overview

8407301EA from Texas Instruments is a military-grade, positive-edge-triggered hex D-type flip-flop with asynchronous clear (CLR), operating across −55°C to 125°C. It features six independent flip-flops in a 16-pin CDIP package, 2 V to 6 V supply range, ±4-mA output drive at 5 V, and typical propagation delay of 14 ns - used in radiation-tolerant shift registers and pattern generators for aerospace telemetry systems.

For engineers reviewing the 8407301EA datasheet, 8407301EA pinout, 8407301EA application, or 8407301EA equivalent, this page delivers verified electrical specs, JEDEC-standard CDIP-16 pin mapping, thermal derating guidance for extended temperature operation, and direct alternatives qualified for high-reliability defense avionics.

Technical Context

This device implements six identical D-type latches synchronized to the rising edge of CLK, each with dedicated D input, Q output, and shared active-low CLR. Clock triggering is voltage-level–sensitive-not edge-slope–dependent-ensuring robust timing under noisy power conditions common in MIL-STD-1553 bus interfaces.

All inputs meet TTL-compatible thresholds across full temperature range: VIH = 4.2 V (min) and VIL = 1.8 V (max) at VCC = 6 V; outputs drive up to 10 LSTTL loads while maintaining VOL ≤ 0.33 V at IOL = 4 mA and VOH ≥ 3.7 V at IOH = −4 mA.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2 V to 6 V - supports dual-supply legacy systems and battery-backed operation in airborne data recorders.
Propagation Delay (tpd)	14 ns typical at VCC = 5 V - enables reliable 25 MHz clock operation in synchronous serial link controllers.
Output Drive Strength	±4 mA at 5 V - sufficient to directly interface with 74LS-series logic without pull-up resistors.
Input Leakage Current	1 µA max - ensures stable state retention during low-power standby modes in space-qualified sequencers.
Operating Temperature	−55°C to +125°C - certified for use in engine-mounted control units and satellite payload electronics.
Power Consumption	80 µA max ICC - enables multi-channel register banks in power-constrained missile guidance subsystems.
Input Transition Rate	400 ns/V max at VCC = 6 V - accommodates slow-rising clock edges from discrete oscillator circuits.

Pinout & Package

8407301EA is housed in a hermetically sealed 16-pin Ceramic Dual In-line Package (CDIP-J), compliant with MIL-STD-883 Class B screening and rated for 1000-hour burn-in. Package dimensions: 20.32 mm × 8.89 mm × 4.45 mm (L × W × H), with 2.54 mm lead pitch and tin-lead finish.

Pin/Terminal	Circuit Role	Design Meaning
1	CLR	Asynchronous active-low clear - resets all six Q outputs to logic low regardless of CLK state; requires external pull-up for noise immunity.
2–7	1D–6D	Data inputs for flip-flops 1 through 6 - sampled on CLK↑; must be stable ≥21 ns before edge at VCC = 6 V.
8	GND	Signal ground reference - must be connected to system star ground point to minimize switching noise coupling.
9–14	1Q–6Q	Complementary outputs - non-inverting Q outputs; fan-out limited to 10 LSTTL loads per pin.
15	CLK	Global clock input - positive-edge–triggered; internal Schmitt trigger absent, so clean signal integrity required.
16	VCC	Positive supply - bypass with 0.1 µF ceramic capacitor within 5 mm of pin to suppress high-frequency ripple.

Key Features

Feature	Design Value
Wide Supply Range (2–6 V)	Enables interoperability with legacy 5 V TTL and modern 3.3 V mixed-signal subsystems without level-shifting.
Low Input Current (≤1 µA)	Permits direct connection to high-impedance analog comparators or microcontroller GPIOs without loading effects.
High Noise Immunity	VIH/VIL margins exceed 20% of VCC across full temperature range - critical for EMI-prone aircraft wiring harnesses.
Direct Clear Functionality	Allows deterministic reset of entire register bank via single control line - essential for fault recovery in flight computers.
6 Independent Flip-Flops	Supports parallel storage of status bits (e.g., sensor health flags, watchdog states) with minimal board area vs. discrete ICs.

Applications

Aerospace Telemetry Encoder	Avionics Watchdog Sequencer
Use Scenario: Captures and serializes real-time sensor readings (temperature, pressure, acceleration) for downlink transmission via PCM telemetry frames. IC Role / Device Role / Timing Role: Acts as parallel-to-serial shift register stage; CLK synchronized to frame sync pulse; CLR used for channel initialization pre-launch. Use Value: Six-bit parallel latch ensures atomic capture of correlated sensor groupings; 125°C rating sustains operation during re-entry thermal transients.	Use Scenario: Monitors execution windows of dual-redundant flight control processors and triggers failover if either exceeds timeout threshold. IC Role / Device Role / Timing Role: Stores watchdog timer expiration flags; Q outputs feed OR-gate to generate system reset; CLR asserts on power-on or software command. Use Value: Asynchronous clear guarantees immediate fault containment; −55°C capability ensures cold-soak startup reliability in polar orbit missions.
Military Data Link Buffer	Satellite Command Decoder
Use Scenario: Buffers incoming encrypted command packets from UHF SATCOM receivers prior to decryption and validation. IC Role / Device Role / Timing Role: Functions as storage register staging decrypted instruction bytes; CLK derived from recovered symbol clock; D inputs tied to FPGA data bus. Use Value: 2 V–6 V operation matches wide-input-range DC/DC converters in SWaP-constrained payloads; 80 µA ICC minimizes standby drain on battery reserves.	Use Scenario: Decodes time-tagged command sequences from ground stations and routes them to appropriate subsystem controllers (power, thermal, comms). IC Role / Device Role / Timing Role: Implements command pattern generator using feedback from Q outputs to D inputs; CLR resets sequence on invalid CRC detection. Use Value: Propagation delay consistency (<1 ns variation over temperature) ensures deterministic command execution timing - vital for orbital maneuver synchronization.

Aerospace Telemetry Encoder

Avionics Watchdog Sequencer

Use Scenario: Captures and serializes real-time sensor readings (temperature, pressure, acceleration) for downlink transmission via PCM telemetry frames.

IC Role / Device Role / Timing Role: Acts as parallel-to-serial shift register stage; CLK synchronized to frame sync pulse; CLR used for channel initialization pre-launch.

Use Value: Six-bit parallel latch ensures atomic capture of correlated sensor groupings; 125°C rating sustains operation during re-entry thermal transients.

Use Scenario: Monitors execution windows of dual-redundant flight control processors and triggers failover if either exceeds timeout threshold.

IC Role / Device Role / Timing Role: Stores watchdog timer expiration flags; Q outputs feed OR-gate to generate system reset; CLR asserts on power-on or software command.

Use Value: Asynchronous clear guarantees immediate fault containment; −55°C capability ensures cold-soak startup reliability in polar orbit missions.

Military Data Link Buffer

Satellite Command Decoder

Use Scenario: Buffers incoming encrypted command packets from UHF SATCOM receivers prior to decryption and validation.

IC Role / Device Role / Timing Role: Functions as storage register staging decrypted instruction bytes; CLK derived from recovered symbol clock; D inputs tied to FPGA data bus.

Use Value: 2 V–6 V operation matches wide-input-range DC/DC converters in SWaP-constrained payloads; 80 µA ICC minimizes standby drain on battery reserves.

Use Scenario: Decodes time-tagged command sequences from ground stations and routes them to appropriate subsystem controllers (power, thermal, comms).

IC Role / Device Role / Timing Role: Implements command pattern generator using feedback from Q outputs to D inputs; CLR resets sequence on invalid CRC detection.

Use Value: Propagation delay consistency (<1 ns variation over temperature) ensures deterministic command execution timing - vital for orbital maneuver synchronization.

Equivalent & Alternatives

The following parts are listed as comparable options for similar D-type flip-flop applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SNJ54HC174FK	LCCC-20 package, 20-pin ceramic leadless chip carrier; higher thermal resistance (θJA = 120°C/W vs. 67°C/W for CDIP-J).	Preferred for ultra-high-vibration environments (e.g., rocket motor mounts) due to superior mechanical rigidity and no leads to fatigue.	Select SNJ54HC174FK when board-level shock survivability exceeds 1000 g and thermal dissipation is managed via heatsink bonding.
SN54HC174J	Identical CDIP-16 package and pinout; same military qualification but older revision (SCLS119B vs. SCLS119D); no updated ESD or latch-up test data.	Approved for legacy sustainment programs where design freeze prohibits component revision updates per MIL-PRF-38535 Annex G.	Choose SN54HC174J only for backward-compatible replacements in fielded hardware with unchanged qualification documentation.

Compared with SNJ54HC174FK and SN54HC174J, 8407301EA offers the most recent revision-controlled characterization (SCLS119D), guaranteed availability through TI's long-term military support program, and documented performance at extreme temperature extremes without derating penalties.

Availability

8407301EA is available at Aetrix Electronics and suitable for aerospace telemetry encoders, avionics watchdog sequencers, military data link buffers, satellite command decoders, and radiation-hardened industrial controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 8407301EA 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 high-reliability components, with over 50 years of heritage in space-qualified and military-grade ICs.

8407301EA belongs to TI's SN54HC logic family, designed specifically for defense, aerospace, and industrial applications demanding guaranteed operation from −55°C to +125°C and compliance with MIL-STD-883 test requirements.

FAQ

What is the maximum clock frequency supported by 8407301EA at 6 V supply?

The 8407301EA supports a maximum clock frequency of 29 MHz at VCC = 6 V and TA = 85°C, as specified in the timing characteristics table of the SCLS119D datasheet. This value reflects worst-case process corner and temperature margining; typical operation achieves 36 MHz at 25°C ambient. The 8407301EA maintains functional integrity up to this rate without setup/hold violations when input transition times meet the 400 ns/V limit.

Does 8407301EA require external pull-up resistors on the CLR pin?

Yes, 8407301EA requires an external pull-up resistor on the CLR pin to ensure reliable deassertion in noisy environments. The device has no internal pull-up; floating CLR may cause unintended resets. A 4.7 kΩ resistor to VCC is recommended for MIL-STD-461E-compliant designs, providing adequate noise margin while limiting current during active-low assertion.

Can 8407301EA operate reliably at −55°C with a 2 V supply?

Yes, 8407301EA is fully characterized and guaranteed to operate at −55°C with VCC = 2 V per the recommended operating conditions table in SCLS119D. At this condition, tpd increases to 240 ns and fclock drops to 5 MHz, but all logic functions remain valid. The 8407301EA's CDIP-J package exhibits no condensation-related failure modes at this temperature extreme.

What is the absolute maximum rating for VCC on 8407301EA?

The absolute maximum supply voltage for 8407301EA is 7 V, as stated in the Absolute Maximum Ratings table of SCLS119D. Exceeding this voltage-even momentarily-may cause permanent damage to the oxide layers. The 8407301EA must be powered through a regulated supply or properly clamped transient protection circuit to avoid violating this limit during load dump or ESD events.

Is 8407301EA pin-compatible with commercial SN74HC174 variants?

No, 8407301EA is not pin-compatible with commercial SN74HC174 variants such as SN74HC174N or SN74HC174PW. While both share the same logical function and 16-pin count, the 8407301EA uses the CDIP-J mechanical outline (JEDEC MS-012), whereas commercial versions use PDIP-N, SOIC-D, or TSSOP-PW packages with different pin spacing, body dimensions, and thermal pad configurations - requiring PCB redesign for substitution.

8407301EA Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

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Packaging:: Bulk

Product Status:: Active

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Max Propagation Delay @ V, Max CL:: -

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Current - Quiescent (Iq):: -

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8407301EA FAQ

1.How can I place an order for 8407301EA through Aetrix?

Please submit a Request for Quotation (RFQ) for 8407301EA 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 8407301EA reliable?

The price and inventory of 8407301EA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8407301EA is usually 5 days.

3.What payment methods are accepted for 8407301EA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8407301EA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 8407301EA?

8407301EA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 8407301EA 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 8407301EA?

For technical support, including 8407301EA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8407301EA requirements.

6.How does Aetrix verify that 8407301EA is sourced from the original manufacturer or authorized distributors?

All 8407301EA 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 8407301EA meets industry standards.

7.What is the process for return or replacement of 8407301EA?

All 8407301EA units undergo pre-shipment inspection (PSI). If there is an issue with 8407301EA, 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 8407301EA part is unused and in its original packaging.

Return procedure for 8407301EA:

1.Submit a request within 90 days.

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

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