Texas Instruments 5962-8681501RA

Overview

5962-8681501RA from Texas Instruments is a high-speed CMOS octal D-type flip-flop with three-state inverting outputs, positive-edge clock triggering, and buffered inputs. It operates across -55°C to +125°C, supports 2V–6V supply (HC logic), delivers 15 LSTTL load drive, and exhibits 13ns typical propagation delay (VCC = 5V, CL = 15pF). It is used in military-grade bus interface and data latching applications requiring radiation-tolerant, wide-temperature digital logic.

For engineers reviewing the 5962-8681501RA datasheet, 5962-8681501RA pinout, 5962-8681501RA application, or 5962-8681501RA equivalent, this device serves as a QML-qualified octal register for high-reliability bus buffering, synchronous data capture, and output isolation in avionics, spaceborne computing, and hardened embedded control systems.

Technical Context

The 5962-8681501RA implements eight independent D-type flip-flops with common three-state output-enable control and inverted Q outputs. Its silicon-gate CMOS architecture enables low static power consumption while maintaining LSTTL-compatible drive strength and noise immunity (NIL/NIL = 30% of VCC at 5V).

It features positive-edge clock triggering with guaranteed setup (10ns min at 6V) and hold (5ns min) times, balanced tPLH/tPHL propagation delays, and fast three-state enable/disable timing (tPZL/tPLZ ≤ 26ns at 6V, CL = 50pF). Input and output capacitances are specified at 10pF and 20pF respectively.

Key Specifications

Pinout & Package

5962-8681501RA is supplied in a 20-lead Ceramic Dual-In-Line Package (CDIP), hermetically sealed and qualified to MIL-STD-883. The package has 0.3-inch body width, 0.100-inch lead pitch, and meets Class B screening requirements for high-reliability applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 5962-8681501RA, CD54HC534F3A provides identical timing and drive but lacks output inversion, while 5962-8984901RA trades supply flexibility for guaranteed LSTTL input compatibility-both require board-level validation for signal integrity and thermal derating in QML deployments.

Availability

5962-8681501RA is available at Aetrix Electronics and suitable for avionics data bus interface, satellite onboard computer I/O, hardened industrial PLC backplane, and military vehicle control module applications requiring stable component supply across extended temperature and radiation environments.

Supply support for 5962-8681501RA 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 with over 50 years of aerospace and defense component heritage.

The 5962-8681501RA belongs to TI's CD54/74HC5xx military logic family, designed specifically for QML-qualified digital interfacing in mission-critical systems where wide temperature range, radiation tolerance, and deterministic timing are mandatory.

FAQ

What logic family and supply voltage range does the 5962-8681501RA support?

The 5962-8681501RA is an HC-type CMOS device supporting 2V to 6V DC supply operation. It is not LSTTL-input compatible and requires CMOS-level input thresholds (VIH ≥ 1.5V at 2V, ≥ 3.15V at 4.5V). This wide voltage range allows integration into mixed-supply systems and battery-backed applications where rail flexibility is essential. The 5962-8681501RA maintains full functionality-including propagation delay, drive strength, and three-state behavior-across its entire rated supply and temperature range.

Is the 5962-8681501RA pin-compatible with other members of the CD54HC5xx series?

Yes, the 5962-8681501RA shares the same 20-pin CDIP footprint and pinout as CD54HC564F3A, including identical placement of OE, CP, D0–D7, Q0–Q7, VCC, and GND. However, it is not pin-compatible with CD54HC534F3A variants due to differing output polarity (Q vs Q̅) and internal routing. Always verify truth table alignment and OE/clock timing relationships before substitution. The 5962-8681501RA pinout matches the functional diagram labeled "CD54HC564" in the SCHS188C datasheet.

What is the maximum clock frequency supported by the 5962-8681501RA at full temperature range?

At VCC = 6V and TA = -55°C to +125°C, the 5962-8681501RA supports a maximum clock frequency of 23MHz (CL = 50pF) or 35MHz (CL = 15pF). These values derive directly from the datasheet's switching specifications table under "HC TYPES – Maximum Clock Frequency." Derating applies for higher capacitive loads or elevated junction temperatures; design margin should include 20% reduction for sustained operation at temperature extremes.

Does the 5962-8681501RA meet MIL-STD-883 requirements?

Yes, the 5962-8681501RA is manufactured and tested per MIL-PRF-38535 Class B and conforms to applicable MIL-STD-883 test methods including Method 2001 (Steady-State Life), Method 2010 (Temperature Cycling), and Method 2017 (Burn-In). Its qualification includes radiation testing (TID and SEE) and hermeticity verification. Full compliance documentation is available via TI's QML database and certificate of conformance accompanying each lot.

How does the three-state output behavior function on the 5962-8681501RA?

The 5962-8681501RA uses an active-low Output Enable (OE) input: when OE is high, all Q0–Q7 outputs enter high-impedance (Z) state regardless of clock or data states; when OE is low, outputs reflect inverted D-input values on each rising CP edge. Propagation delay from OE assertion to Z-state is ≤26ns (6V, CL = 50pF), and from OE deassertion to valid output is ≤26ns. This behavior enables clean bus arbitration and avoids contention in multi-driver topologies.