Texas Instruments 5962-85155012A

Overview

5962-85155012A from Texas Instruments is a military-grade high-performance IMPACT™ PAL® programmable array logic device in 20-pin LCCC (FK) package, featuring 10 inputs, 2 active outputs, 6 I/O ports, and 15 ns max propagation delay at 5 V. It implements combinational logic with fixed architecture, supports TTL-compatible interfacing, and operates across –55°C to 125°C for aerospace and defense systems requiring deterministic timing.

For engineers reviewing the 5962-85155012A datasheet, 5962-85155012A pinout, 5962-85155012A application, or 5962-85155012A equivalent, this device serves as a drop-in replacement for PAL16L8A in legacy military avionics, radar control logic, and hardened embedded sequencers where fuse-based programmability, power-up register reset, and wide-temperature reliability are critical selection criteria.

Technical Context

The 5962-85155012A implements a fixed 32 × 64 AND-OR array architecture with programmable fuses, supporting up to 16 product terms per output. Its logic structure includes dedicated input buffers, feedback paths from I/O pins, and active-low output enables - all implemented using Advanced Low-Power Schottky (ALS) technology with titanium-tungsten fuses for nonvolatile configuration retention.

It features power-up clear functionality that forces all registered outputs high upon VCC ramp (with monotonic rise), and supports preload of individual registers via dedicated test pins (Pin 1 and Pin 11). The device lacks internal clock distribution or state-machine synthesis capability - it functions strictly as a macrocell-level combinational/registered logic building block.

Key Specifications

Pinout & Package

5962-85155012A is housed in a 20-pin ceramic leadless chip carrier (LCCC), package drawing FK, with leads arranged in a square perimeter and no external leads - soldered via metallized pads on PCB. The package is hermetically sealed and rated for high-reliability military use.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PAL logic applications.

Compared with 5962-8515501RA and 5962-8515501SA, the 5962-85155012A offers the smallest footprint and highest thermal dissipation efficiency among the three variants, making it optimal for SWaP-constrained airborne electronics where LCCC mounting is supported by assembly infrastructure.

Availability

5962-85155012A is available at Aetrix Electronics and suitable for avionics flight control logic, radar signal processing sequencing, tactical radio channel selection, and hardened industrial PLC I/O expansion requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 5962-85155012A 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 TIBPAL16L8 family was designed to replace discrete TTL logic in military systems with programmable, fuse-based logic arrays offering guaranteed timing, radiation-tolerant configuration, and extended temperature operation.

FAQ

What is the maximum clock frequency supported by the 5962-85155012A?

The 5962-85155012A supports a maximum clock frequency of 41.6 MHz under military operating conditions (–55°C to 125°C) with VCC = 4.5 V to 5.5 V. This limit derives from its 20 ns typical propagation delay and setup/hold timing constraints - exceeding this frequency risks metastability or incorrect register capture in synchronous applications using its CLK input.

Does the 5962-85155012A require external configuration memory?

No, the 5962-85155012A does not require external configuration memory. It uses nonvolatile titanium-tungsten fuses programmed once during manufacturing or field programming, retaining logic configuration indefinitely without power. This eliminates boot-time delays and single-point failure modes associated with external PROMs or flash memory in safety-critical systems.

How does the power-up reset feature of the 5962-85155012A function?

The 5962-85155012A asserts power-up reset automatically when VCC rises monotonically: all registered outputs go high internally, though output pins transition low due to TTL output stage behavior. This occurs within 1000 ns after VCC crosses 1.5 V. To ensure reliable reset, VCC slew rate must exceed 0.5 V/ms and avoid droop below 4.5 V during startup - a requirement verified in MIL-STD-704 power quality testing.

Can the 5962-85155012A be used as a direct replacement for PAL16L8A in existing designs?

Yes, the 5962-85155012A is functionally identical to PAL16L8A and specified as a faster, military-qualified replacement. It maintains pin-for-pin compatibility with PAL16L8A in the same 20-pin LCCC package (FK), preserves identical logic equations and fuse map structure, and meets all electrical and timing specifications with tighter tolerances - enabling drop-in replacement without layout or firmware changes.

What programming equipment is required to configure the 5962-85155012A?

The 5962-85155012A is programmed using industry-standard PAL programmers supporting TI's IMPACT™ architecture, such as Data I/O PS-29xx series or BP Microsystems Model 3000. Programming requires a JEDEC file generated from ABEL or CUPL source, plus VIHH (10.5 V) capability on Pin 11 for preload verification. Texas Instruments provides complete programming algorithms and fuse map documentation upon request.