Texas Instruments 5962-88738012A

Overview

5962-88738012A from Texas Instruments is a military-grade octal 3-state noninverting buffer/driver IC, designed for memory address driving and bus interfacing in high-reliability systems. It features dual 4-bit channels, ±15 mA output drive, 3 ns minimum propagation delay, and operates across −55°C to 125°C. It is used in airborne avionics data buses where deterministic timing and radiation-tolerant logic are required.

For engineers reviewing the 5962-88738012A datasheet, 5962-88738012A pinout, 5962-88738012A application, or 5962-88738012A equivalent, key selection criteria include military temperature range compliance, dual-channel 3-state control, ALS logic family speed-power tradeoff, and ceramic LCCC package suitability for hermetic sealing and thermal cycling resilience.

Technical Context

This device implements two independent 4-bit noninverting buffer sections, each with separate 3-state enable inputs (1OE and 2OE), allowing selective bus isolation. Its ALS (Advanced Low-Power Schottky) architecture delivers 3 ns tPLH/tPHL at 5 V while maintaining 16 mA sink capability - optimized for TTL-compatible memory address buffering.

The input stage uses pnp-based circuitry to reduce DC loading on upstream drivers, and outputs meet 3-state leakage limits of ±20 µA at 5.5 V. Timing parameters are fully characterized over −55°C to 125°C, with disable/enable times (tPZL/tPHZ) as low as 2 ns, enabling fast bus turnaround in time-critical control paths.

Key Specifications

Pinout & Package

Ceramic Leadless Chip Carrier (LCCC), FK package, 20-terminal, hermetically sealed, lead-free post-plated finish, JEDEC MO-047 compliant. Designed for surface-mount soldering onto multilayer ceramic substrates in high-vibration environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 5962-88738012A, the CDIP alternatives offer identical logic performance and military temperature rating but lack the LCCC's superior thermal resistance (1.5× lower θJA), hermetic seal integrity, and vibration survivability - making 5962-88738012A the sole choice for new designs in jet engine-mounted or seeker-head electronics.

Availability

5962-88738012A is available at Aetrix Electronics and suitable for avionics data bus interface, flight control computer address buffering, and missile guidance system clock tree buffering requiring stable component supply under extended lifecycle management.

Supply support for 5962-88738012A 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 founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.

The SN54ALS1244A product line was developed to deliver radiation-tolerant, temperature-stable octal buffering for military computing systems - specifically targeting memory address expansion and bus isolation in MIL-STD-883-compliant platforms.

FAQ

What is the operating temperature range specified for the 5962-88738012A?

The 5962-88738012A is characterized for operation from −55°C to 125°C, meeting MIL-PRF-38535 Class K requirements. This full military temperature range is validated across all electrical parameters including propagation delay, output drive, and 3-state leakage - essential for deployment in jet turbine compartments and space-qualified payloads where ambient extremes exceed commercial limits.

Does the 5962-88738012A support true 3-state operation with controlled high-impedance outputs?

Yes, the 5962-88738012A provides fully specified 3-state operation: when either 1OE or 2OE is high, the corresponding Y outputs enter high-impedance mode with leakage current limited to ±20 µA at 5.5 V. This behavior is tested and guaranteed across −55°C to 125°C, ensuring reliable bus isolation in fault-tolerant architectures where multiple drivers share a common line.

What package type is used for the 5962-88738012A, and why is it suited for high-reliability applications?

The 5962-88738012A uses a 20-terminal ceramic leadless chip carrier (LCCC, FK package). Its hermetic ceramic body, gold-plated leads, and absence of gull-wing or J-leads eliminate solder joint fatigue under thermal cycling and mechanical shock - critical for airborne and missile systems where failure modes must be mitigated beyond standard JEDEC reliability testing.

How does the ALS logic family in the 5962-88738012A compare to standard LS or AS families?

The ALS family in the 5962-88738012A achieves a measured 3 ns minimum propagation delay at 5 V - faster than LS (typically 9–10 ns) and more power-efficient than AS (ICC < 20 mA vs AS's >30 mA). Its pnp input structure also reduces DC loading by 50% versus LS, making it ideal for driving multiple loads from a single microcontroller port without buffer cascading.

Is the 5962-88738012A pin-compatible with other members of the SN54ALS1244A family?

Yes, the 5962-88738012A shares identical pinout and electrical behavior with all SN54ALS1244A variants, including the CDIP (J) and LCCC (FK) versions. Pin assignments for VCC, GND, 1A1–1A4, 1Y1–1Y4, 2A1–2A4, 2Y1–2Y4, 1OE, and 2OE are fully consistent - enabling direct substitution in existing layouts when upgrading from through-hole to surface-mount packaging.