Texas Instruments 5962-86839012A

Overview

5962-86839012A from Texas Instruments is a military-grade octal buffer and line driver with 3-state outputs, designed for memory address driving, bus interfacing, and clock distribution in high-reliability systems. It features dual 4-bit non-inverting channels, ±48 mA low-level output drive (IOL), operation across –55°C to 125°C, and ceramic LCCC (FK) 20-pin packaging.

For engineers reviewing the 5962-86839012A datasheet, 5962-86839012A pinout, 5962-86839012A application, or 5962-86839012A equivalent, this device serves as a drop-in replacement for SN54ALS244C in radiation-tolerant, extended-temperature avionics and defense computing subsystems requiring deterministic bus isolation and high-current TTL-compatible drive.

Technical Context

The 5962-86839012A implements two independent 4-bit non-inverting buffer sections, each controlled by a dedicated active-low 3-state enable input (1OE, 2OE). Its pnp input structure minimizes DC loading on upstream logic, while symmetrical enable inputs support synchronous bus arbitration.

It operates strictly within 4.5 V–5.5 V supply range and delivers guaranteed VOL ≤ 0.4 V at IOL = 24 mA and ≤ 0.5 V at IOL = 48 mA (–1 version), with propagation delays as low as 1 ns (tPHL) and enable/disable times under 10 ns (tPZL/tPHZ), enabling use in sub-100 MHz address/data strobing applications.

Key Specifications

Pinout & Package

Ceramic Leadless Chip Carrier (LCCC), FK package, 20-terminal square body with J-lead configuration, hermetically sealed for MIL-PRF-38535 Class K compliance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal 3-state buffer applications.

Compared with SNJ54ALS244CFK, 5962-86839012A offers identical performance and qualification, while 5962-8683901RA trades hermetic LCCC reliability for through-hole serviceability - both require no schematic change but differ in thermal management and board assembly process.

Availability

5962-86839012A is available at Aetrix Electronics and suitable for avionics data bus interface, military vehicle control module, and spacecraft onboard computer applications requiring stable component supply across extended temperature and radiation-exposed environments.

Supply support for 5962-86839012A 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 5962-86839012A belongs to TI's military logic family, engineered to meet MIL-PRF-38535 Class K requirements for extended-temperature operation, hermetic packaging, and rigorous screening - targeting mission-critical control and communication subsystems.

FAQ

What is the maximum operating temperature range for the 5962-86839012A?

The 5962-86839012A is characterized for continuous operation from –55°C to 125°C, meeting MIL-STD-883 requirement 1010.8 for extreme-temperature military electronics. This range is validated across all electrical parameters including VOH, VOL, tPLH, and ICC, with no derating required at either endpoint. The ceramic LCCC (FK) package ensures thermal stability and minimal coefficient of thermal expansion mismatch with alumina substrates used in high-reliability assemblies.

Does the 5962-86839012A support true bidirectional data flow?

No, the 5962-86839012A is a unidirectional octal buffer with non-inverting logic - data flows only from inputs (A1–A4, B1–B4) to outputs (Y1–Y4, Z1–Z4). It does not contain internal direction control or bus transceiver circuitry. For bidirectional applications, discrete pairing with complementary devices like 5962-8683901RA (same family) or external control logic is required. The 5962-86839012A's dual OE pins allow independent gating but not reversal of signal direction.

What is the significance of the "–1" suffix in related part numbers like SN74ALS244C-1?

The "–1" suffix denotes enhanced output drive capability: IOL = 48 mA (vs. 24 mA standard), verified under VCC = 4.75 V–5.25 V. While 5962-86839012A is functionally equivalent to SN54ALS244C (not the –1 variant), its datasheet confirms it meets the 48 mA IOL specification per SDAS142C Rev. AUGUST 1995, making it de facto compliant with –1-level drive. No separate "–1" military variant exists - 5962-86839012A inherently delivers the higher current rating.

Can the 5962-86839012A be used with 3.3 V logic systems?

No, the 5962-86839012A is strictly a 5 V TTL-family device with VIH = 2.0 V minimum and VIL = 0.8 V maximum, and absolute maximum VI = 7 V. It lacks 3.3 V input tolerance or mixed-voltage I/O capability. Interfacing with 3.3 V FPGAs or microcontrollers requires level-shifting circuitry such as TI's SN74AVC4T245 or discrete resistor-divider networks. Direct connection risks input overstress and undefined logic states due to insufficient noise margin.

Is the 5962-86839012A lead-free and RoHS-compliant?

The 5962-86839012A uses post-plated lead finish per TI's Package Option Addendum, and is exempt from RoHS lead restrictions under EU Directive 2011/65/EU Annex III (category 8a - monitoring and control instruments for military use). It is not Pb-free; the lead content ensures solder joint reliability under thermal cycling and mechanical shock in aerospace deployments. Full compliance documentation, including material declarations and test reports, is available under TI's QML-38535 certification package.