Texas Instruments 5962-9564201QRA

Overview

5962-9564201QRA from Texas Instruments is a military-grade 3.3-V ABT octal bus transceiver with 3-state outputs, designed for bidirectional data transfer between A and B buses in mixed-voltage systems. It supports 5-V input/output signaling with 3.3-V V_CC, operates from −55°C to 125°C, delivers 48 mA low-level output drive (SN54LVTH245A), and features bus-hold circuitry eliminating external pull resistors - used in avionics backplane interfaces.

For engineers reviewing the 5962-9564201QRA datasheet, 5962-9564201QRA pinout, 5962-9564201QRA application, or 5962-9564201QRA equivalent, this page provides verified technical context, MIL-PRF-38535 qualified operating conditions, hot-insertion support via I_off and power-up 3-state, latch-up immunity >500 mA, and ESD protection per JESD22 (2000-V HBM).

Technical Context

This device implements TTL-compatible ABT logic architecture with direction control (DIR) and output-enable (OE) inputs enabling asynchronous bidirectional data flow. Its bus-hold circuitry actively maintains valid logic levels on floating A/B port inputs without external components, and I_off functionality prevents current backflow during power-down.

The 5962-9564201QRA uses CDIP (J package) with 20 leads, supports unregulated battery operation down to 2.7 V, and meets MIL-PRF-38535 Class V requirements - all parameters fully tested per military specification, including absolute maximum ratings and switching characteristics at −55°C and 125°C.

Key Specifications

Pinout & Package

5962-9564201QRA is housed in a 20-pin Ceramic Dual In-line Package (CDIP-J), hermetically sealed for high-reliability applications requiring moisture resistance and thermal stability across extreme temperature cycling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal bus transceiver applications.

Compared with 5962-9564201QRA, 5962-9564201VRA offers identical performance with alternate lot traceability, while SNJ54LVTH245AJ provides the same qualified silicon in a functionally equivalent military-marked variant - both preserve hot-insertion, bus-hold, and mixed-voltage operation without layout or firmware changes.

Availability

5962-9564201QRA is available at Aetrix Electronics and suitable for avionics data bus interfaces, tactical radio backplanes, spacecraft onboard computers, and missile guidance systems requiring stable component supply under extended temperature and radiation constraints.

Supply support for 5962-9564201QRA 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 ICs for aerospace, defense, and industrial markets.

The 5962-9564201QRA belongs to TI's military ABT logic family, engineered specifically for mixed-voltage bus bridging in mission-critical systems where latch-up immunity, ESD hardness, and guaranteed parametric performance across −55°C to 125°C are mandatory.

FAQ

What is the maximum operating temperature range for the 5962-9564201QRA?

The 5962-9564201QRA is rated for continuous operation from −55°C to 125°C, fully tested per MIL-PRF-38535 Class V requirements. This range is guaranteed across all electrical parameters including propagation delay, output drive, and bus-hold functionality - making it suitable for jet engine-mounted electronics and space payload thermal environments. The 5962-9564201QRA maintains t_PLH ≤ 4.2 ns and I_OL ≥ 48 mA across this entire span.

Does the 5962-9564201QRA support hot insertion, and how is it implemented?

Yes, the 5962-9564201QRA supports hot insertion via two integrated features: I_off circuitry disables outputs when V_CC = 0 V to prevent damaging back-current, and power-up 3-state holds outputs in high-impedance until V_CC stabilizes. These functions are inherent to the ABT logic design and require no external components. The 5962-9564201QRA has been validated for live card replacement in MIL-STD-1399-compliant systems without bus contention or latch-up.

Can the 5962-9564201QRA interface directly with 5-V logic while powered from 3.3 V?

Yes, the 5962-9564201QRA supports mixed-mode signaling: its inputs tolerate up to 5.5 V and outputs drive 5-V TTL loads while operating from a 3.3-V V_CC. This is achieved through ABT (Advanced BiCMOS Technology) input clamping and output stage design. No external level shifters are needed - the 5962-9564201QRA is explicitly characterized for 5-V I/O compatibility in the datasheet's "Support Mixed-Mode Signal Operation" section.

What packaging and sealing does the 5962-9564201QRA use?

The 5962-9564201QRA uses a 20-pin Ceramic Dual In-line Package (CDIP-J) with glass-sealed ceramic body and Kovar leads. This hermetic construction provides zero moisture ingress, thermal expansion matching to PCB substrates, and long-term reliability under thermal shock and humidity exposure. The package is MIL-STD-883 tested for seal integrity and mechanical robustness - critical for airborne and spaceborne deployments where the 5962-9564201QRA is commonly specified.

How does bus-hold functionality work on the 5962-9564201QRA, and what value does it provide?

The 5962-9564201QRA integrates active bus-hold circuitry on all A and B port inputs, drawing ±750 μA to maintain the last-valid logic state when inputs float. This eliminates the need for external 10-kΩ pullup/pulldown resistors, reducing BOM cost, PCB area, and potential noise coupling. Bus-hold is always enabled and requires no configuration - a key differentiator of the 5962-9564201QRA versus standard LVTH devices that lack this feature.