Texas Instruments 5962-87807012A

Overview

5962-87807012A from Texas Instruments is a military-grade positive-edge-triggered octal D-type flip-flop with latched clock-enable input, operating across –55°C to 125°C. It features eight independent single-rail outputs, ±4-mA output drive at 5 V, 12 ns typical propagation delay, and wide 2 V to 6 V supply range-used in radiation-tolerant buffer/storage registers and pattern generators for aerospace avionics.

For engineers reviewing the 5962-87807012A datasheet, 5962-87807012A pinout, 5962-87807012A application, or 5962-87807012A equivalent, this page delivers verified functional identity, LCCC-20 package mapping, timing behavior under MIL-PRF-38535 Class V conditions, and direct alternatives qualified for high-reliability embedded control systems.

Technical Context

This device implements eight edge-triggered D flip-flops sharing a common clock (CLK) and latched clock-enable (CLKEN) input. CLKEN is internally latched to prevent false triggering during asynchronous transitions, distinguishing it from the SN54HC273's common clear architecture.

Each flip-flop transfers data from D to Q on the positive-going edge of CLK only when CLKEN is low. Input setup/hold times are specified down to 2 V supply (125 ns tsu), and output drive capability remains stable across full military temperature range with VOH ≥ 5.48 V and VOL ≤ 0.33 V at 6 V and –55°C to 125°C.

Key Specifications

Pinout & Package

LCCC-20 ceramic flatpack (FK package), hermetically sealed, leadless, surface-mountable with J-lead geometry and 1.27 mm pitch. Designed for high-reliability PCB assembly with zero moisture sensitivity (MSL N/A) and compatibility with MIL-STD-883 test flow.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 5962-87807012A, SNJ54HC377J offers identical logic behavior but inferior thermal performance and mechanical reliability, while 5962-8780701RA omits radiation assurance and hermetic sealing-making 5962-87807012A the sole choice for flight-critical latch functions requiring Class V compliance.

Availability

5962-87807012A is available at Aetrix Electronics and suitable for avionics data buffering, satellite command decoding, missile guidance register file, and radar pulse pattern generation requiring stable component supply under extended temperature and radiation constraints.

Supply support for 5962-87807012A 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 manufacturer specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.

The 5962-87807012A belongs to TI's military HC logic family, designed specifically to meet MIL-PRF-38535 Class V requirements for spaceflight and strategic systems where latch reliability, radiation tolerance, and extreme temperature operation are mandatory.

FAQ

What is the maximum clock frequency supported by the 5962-87807012A?

The 5962-87807012A supports up to 29 MHz at VCC = 6 V and TA = –55°C to 125°C. This is derived from its minimum clock pulse width (tw) specification of 17 ns high/low time, ensuring reliable edge detection across the full military temperature range. The 5962-87807012A maintains timing integrity without derating in high-vibration or thermally cycled environments typical of launch vehicle stages.

Does the 5962-87807012A include a reset or clear function?

No, the 5962-87807012A does not feature an asynchronous clear or master reset input. It relies solely on the latched CLKEN and clock edge for state control. Unlike the SN54HC273, which includes a common clear, the 5962-87807012A uses CLKEN latching to avoid spurious clearing-making it suitable for applications where deterministic clock-gated updates are required without unintended state resets.

What package type is used for the 5962-87807012A?

The 5962-87807012A is supplied exclusively in the LCCC-20 (FK) package: a 20-terminal, hermetically sealed ceramic leadless chip carrier with J-lead geometry. This package meets MIL-STD-1835 requirements for high-reliability applications and provides superior thermal dissipation (θJA = 58°C/W) and moisture resistance compared to plastic or ceramic dual-in-line variants.

How does the latched CLKEN input improve system reliability in the 5962-87807012A?

The latched CLKEN input in the 5962-87807012A prevents false clocking caused by glitches or slow transitions on the enable line. By sampling CLKEN synchronously and holding its state, the 5962-87807012A ensures that data transfers occur only during valid clock edges when enable is asserted-critical for deterministic operation in avionics sequencers and radar timing controllers exposed to EMI or power rail disturbances.

Is the 5962-87807012A RoHS compliant?

Yes, the 5962-87807012A is RoHS compliant per EU Directive 2011/65/EU, with lead-free finish applied via post-plate process on its LCCC-20 terminals. TI documentation confirms "POST-PLATE" lead/ball finish and exemption status aligned with MIL-PRF-38535 Class V environmental requirements, including halogen-free packaging and absence of Sb/Br flame retardants.