Texas Instruments 8415001EA

Overview

8415001EA from Texas Instruments is a dual J-K positive-edge-triggered flip-flop in CDIP (J) package, operating from −55°C to 125°C with supply voltage range 2 V to 6 V, ±4-mA output drive at 5 V, and typical propagation delay of 12 ns. It implements synchronous sequential logic for military-grade timing control in avionics data synchronizers and radiation-tolerant telemetry interfaces.

For engineers reviewing the 8415001EA datasheet, 8415001EA pinout, 8415001EA application, or 8415001EA equivalent, this device supports precise edge-triggered state storage in high-reliability systems requiring guaranteed setup/hold timing, low input current (≤1 µA), and robust noise immunity across extended temperature extremes.

Technical Context

The 8415001EA integrates two independent J-K flip-flops with asynchronous preset (PRE) and clear (CLR) inputs that override clocked operation. Each flip-flop responds to the positive-going edge of CLK while maintaining stable outputs during PRE/CLR assertion.

Its CMOS architecture delivers rail-to-rail output swing, low ICC (≤40 µA max), and high noise margin-enabling reliable operation in mixed-signal environments where signal integrity and power efficiency are critical for deterministic state transitions.

Key Specifications

Pinout & Package

8415001EA uses a 16-pin Ceramic Dual In-line Package (CDIP-J) with hermetic sealing and gold-plated leads for high-reliability applications. Pin numbering follows standard JEDEC DIP layout with notch orientation defining Pin 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual J-K flip-flop applications.

Compared with 8415001EA, SNJ54HC109FK offers superior thermal dissipation in LCCC format but requires PCB redesign, while 5962-8415001VFA maintains identical logic behavior in CFP packaging-making it a drop-in replacement only for mechanical integration, not electrical substitution.

Availability

8415001EA is available at Aetrix Electronics and suitable for avionics data synchronizers, radiation-hardened telemetry encoders, and nuclear reactor control logic requiring stable component supply across extended temperature ranges and long-lifecycle programs.

Supply support for 8415001EA 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 SN54HC109 product line delivers radiation-tolerant, high-speed CMOS logic for mission-critical timing and control functions in environments where extended temperature operation and deterministic state behavior are non-negotiable.

FAQ

What is the maximum clock frequency supported by the 8415001EA?

The 8415001EA supports a maximum clock frequency of 36 MHz at VCC = 6 V and 31 MHz at VCC = 4.5 V, as specified in its timing requirements table. These values derive from minimum pulse width and setup/hold time constraints, ensuring reliable edge-triggered operation without metastability in synchronous designs using the 8415001EA.

Does the 8415001EA support 3.3-V operation?

Yes, the 8415001EA supports 3.3-V operation within its rated 2 V to 6 V supply range. At VCC = 3.3 V, input thresholds scale proportionally (VIH ≈ 2.3 V, VIL ≈ 0.99 V), and output drive remains sufficient for LVTTL-compatible loads. All AC and DC specifications in the 8415001EA datasheet apply across this full voltage range.

What is the purpose of the NC pins on the 8415001EA?

The 8415001EA has no NC (No Connection) pins - all 16 pins in its CDIP-J package are electrically functional. This distinguishes it from variants like SN54HC109FK (LCCC-20), which includes NC pins. The 8415001EA pinout maps directly to standard J-K flip-flop functionality with no unused terminals.

How does the 8415001EA handle metastability during asynchronous PRE/CLR assertion?

The 8415001EA eliminates metastability risk during PRE/CLR assertion by overriding the clocked J-K logic path entirely: when either input is low, Q and Q̅ assume defined states (H/L or L/H) immediately and deterministically, independent of CLK timing or data stability. This behavior is guaranteed across the full −55°C to 125°C range and is explicitly documented in the 8415001EA function table.

Is the 8415001EA RoHS compliant?

No, the 8415001EA is not RoHS compliant. As a military-grade CDIP-J device manufactured under MIL-PRF-38535, it uses leaded solder and gold-plated leads incompatible with RoHS Pb-free requirements. Its environmental compliance aligns with defense standards (e.g., MIL-STD-883), not commercial RoHS directives - a key distinction confirmed in TI's Packaging Option Addendum for 8415001EA.