Texas Instruments 5962-8515401CA

Overview

5962-8515401CA from Texas Instruments is a military-grade dual J-K flip-flop with asynchronous reset, negative-edge clock triggering, complementary Q/Q outputs, and hysteresis on clock inputs for noise immunity. It operates across -55°C to +125°C at 2V–6V (HC logic), supports 10 LSTTL loads, and delivers typical f_MAX = 60 MHz at V_CC = 5V, C_L = 15 pF - used in radiation-tolerant avionics timing control and secure data path synchronization.

For engineers reviewing the 5962-8515401CA datasheet, 5962-8515401CA pinout, 5962-8515401CA application, or 5962-8515401CA equivalent, key selection criteria include guaranteed operation over extended temperature, ceramic DIP hermetic packaging, negative-edge triggering behavior, asynchronous reset timing margins, and HC-family CMOS power/performance trade-offs versus LSTTL compatibility.

Technical Context

This device implements two independent edge-triggered J-K flip-flops sharing no internal logic coupling; each has dedicated J, K, Clock (CP), Reset (R), Q, and Q̅ terminals. State transitions occur exclusively on the high-to-low clock transition, with reset overriding all clocked behavior asynchronously via low-level assertion.

It belongs to the CD54HC logic family - silicon-gate CMOS technology enabling LSTTL-equivalent speed with significantly lower quiescent current (ICC ≤ 80 µA over full temp range) and higher noise immunity (NIL/NIH = 30% of V_CC). Input hysteresis improves robustness against slow-rising/falling clock edges, while balanced propagation delay (t_PLH/t_PHL ≤ 51 ns @ 4.5V, C_L = 50 pF) ensures deterministic setup/hold timing.

Key Specifications

Pinout & Package

Ceramic Dual In-Line Package (CDIP), 14-pin, hermetically sealed per MIL-STD-1835 GDIP1-T14, 5.08 mm max height, with optional pin-1 identification marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 5962-8515401CA, CD74HC107E offers identical logic behavior at lower cost but sacrifices hermetic reliability, while CD74HCT107E trades supply flexibility for guaranteed LSTTL input compatibility - neither provides the radiation-hardened assurance or extended lifetime reliability of the 5962-8515401CA ceramic variant.

Availability

5962-8515401CA is available at Aetrix Electronics and suitable for avionics timing control, satellite command decoding, radiation-hardened data path, secure crypto key management, and high-reliability industrial monitoring requiring stable component supply across extended temperature and long product lifecycles.

Supply support for 5962-8515401CA 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 logic solutions for aerospace, defense, and industrial markets.

The CD54HC logic family - including 5962-8515401CA - was designed specifically for military and space applications demanding extended temperature operation, hermetic packaging, and radiation-tolerant silicon gate CMOS architecture.

FAQ

What is the absolute maximum supply voltage rating for 5962-8515401CA?

The absolute maximum DC supply voltage for 5962-8515401CA is -0.5 V to +7 V. Operation beyond this range risks permanent damage. The recommended operating range is 2 V to 6 V for HC logic compatibility. This specification is defined in the Absolute Maximum Ratings table of the SCHS139D datasheet and applies across the full -55°C to +125°C temperature range. Exceeding 7 V, even momentarily, may degrade oxide integrity in the silicon gate structure.

Does 5962-8515401CA support 3.3V logic level interfacing?

Yes, 5962-8515401CA supports 3.3V operation: its HC-family specifications include valid operation at V_CC = 3.3V (within the 2V–6V range), with VIH(min) = 2.0V and VIL(max) = 1.35V at that voltage - fully compatible with standard 3.3V CMOS outputs. Input hysteresis further enhances noise margin. The 5962-8515401CA datasheet confirms functional behavior and timing parameters (e.g., t_PLH, f_MAX) are characterized down to 2V, ensuring robustness in mixed-voltage systems.

Is the pinout of 5962-8515401CA identical to CD74HC107E?

Yes, 5962-8515401CA shares identical pinout and terminal assignment with CD74HC107E and all other members of the CD54HC107/CD74HC107 family. Pin 1 = 1J, Pin 2 = 1Q, Pin 3 = 1Q̅, Pin 4 = 1K, Pin 5 = 2Q, Pin 6 = 2Q̅, Pin 7 = GND, Pin 8 = V_CC, Pin 9 = 1R, Pin 10 = 1CP, Pin 11 = 2K, Pin 12 = 2R, Pin 13 = 2CP, Pin 14 = 2J - confirmed in the "Pinout" section of SCHS139D and TI's PACKAGE OUTLINE J0014A.

What is the minimum pulse width required for the asynchronous reset input on 5962-8515401CA?

The minimum asynchronous reset pulse width for 5962-8515401CA is 24 ns at V_CC = 4.5V and -55°C to +125°C, as specified in the "Prerequisite For Switching Specifications" table under R Pulse Width (t_w). At 2V, the limit increases to 120 ns. This parameter ensures reliable reset assertion across the full military temperature range and supply voltage envelope - critical for fail-safe initialization in safety-critical systems using the 5962-8515401CA.

How does the hysteresis on clock inputs improve noise immunity in 5962-8515401CA?

The hysteresis on 5962-8515401CA clock inputs raises the effective noise rejection threshold: input transitions require crossing distinct upper (VIH) and lower (VIL) voltage thresholds, creating a built-in deadband. At V_CC = 5V, this yields ~1.5V hysteresis window, rejecting noise spikes <±750 mV and enabling reliable operation with input rise/fall times up to 1000 ns at 2V. This is explicitly documented in the "Features" section of SCHS139D and eliminates need for external Schmitt triggers in EMI-prone avionics harnesses interfacing with the 5962-8515401CA.