Texas Instruments JM38510/30905BFA

Overview

JM38510/30905BFA from Texas Instruments is a military-grade 8-line to 1-line data selector/multiplexer with three-state outputs, operating across –55°C to +125°C, featuring TTL-compatible input thresholds, 16-pin CFP (ceramic flatpack) package, and propagation delay of 22 ns (max) at V_CC = 5 V. It serves in real-time signal routing for avionics data acquisition systems requiring high-reliability digital selection under extended temperature stress.

For engineers reviewing the JM38510/30905BFA datasheet, JM38510/30905BFA pinout, JM38510/30905BFA application, or JM38510/30905BFA equivalent, key selection considerations include its military QML-38510 qualification, CFP-W package thermal robustness, three-state output enable timing, and compatibility with legacy 54LS251-based control logic in space-qualified and defense electronics.

Technical Context

This device implements a dual-function 8:1 multiplexer with common select inputs (S0–S2), active-low output enable (OE̅), and complementary outputs (Y and Y̅). Its internal architecture uses standard TTL bipolar transistor logic with Schottky-clamped inputs and outputs, ensuring noise immunity and predictable switching behavior in mixed-signal environments.

All inputs meet MIL-STD-883 Class B requirements for voltage thresholds and transient immunity; output drive capability supports fan-out of 10 LS-TTL loads; DC parameters are guaranteed over full military temperature range without derating. The CFP-W package provides hermetic sealing and low thermal resistance for sustained operation in conduction-cooled chassis.

Key Specifications

Pinout & Package

Package: 16-pin Ceramic Flatpack (CFP), Package Drawing W, hermetically sealed, lead finish A42, suitable for high-reliability solder reflow and wave processes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8:1 multiplexer applications.

Compared with SNJ54LS251W and JM38510/30905BEA, the JM38510/30905BFA delivers identical multiplexing functionality with optimized packaging for high-vibration deployment, while retaining full backward compatibility in logic timing, voltage thresholds, and military qualification scope.

Availability

JM38510/30905BFA is available at Aetrix Electronics and suitable for avionics subsystems, secure communications modules, radar signal conditioning, and mission-critical industrial controllers requiring stable component supply across extended lifecycle planning horizons.

Supply support for JM38510/30905BFA 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.

JM38510/30905BFA belongs to TI's QML-38510 logic family, designed specifically to meet MIL-PRF-38535 Class V requirements for radiation-tolerant, thermally stable, and long-lifecycle digital control in safety-critical platforms.

FAQ

What is the logic function of JM38510/30905BFA?

JM38510/30905BFA is an 8-line to 1-line data selector/multiplexer with three-state outputs and complementary Y/Y̅ outputs. It routes one of eight digital inputs (I0–I7) to the true output Y (and inverted output Y̅) based on binary select lines S0–S2, with output enable controlled by OE̅. This function is identical to the industry-standard 54LS251 logic configuration.

Is JM38510/30905BFA pin-compatible with commercial 74LS251 devices?

No - JM38510/30905BFA uses a 16-pin CFP (ceramic flatpack) package with Package Drawing W, whereas commercial 74LS251 variants use PDIP, SOIC, or other non-hermetic packages. Pin numbering and physical layout differ; only the logic function and electrical interface (TTL levels, drive strength) are compatible. Direct PCB replacement requires footprint redesign.

What temperature range is guaranteed for JM38510/30905BFA?

JM38510/30905BFA is fully specified and tested over –55°C to +125°C per MIL-PRF-38535 Class V requirements. All AC and DC parameters - including propagation delay, input thresholds, and output drive - are guaranteed across this full military temperature range without derating or conditional specifications.

Does JM38510/30905BFA require external pull-up resistors on its outputs?

No - JM38510/30905BFA features active pull-down and pull-up circuitry on both Y and Y̅ outputs, delivering standard TTL output voltage levels (V_OH ≥ 2.7 V, V_OL ≤ 0.5 V) into LS-TTL loads. External pull-ups are unnecessary unless interfacing with non-TTL logic families requiring different threshold voltages.

What is the status of JM38510/30905BFA according to Texas Instruments?

Texas Instruments lists JM38510/30905BFA as NRND (Not Recommended for New Designs), meaning it remains in production to support existing qualified programs but is not promoted for new designs. Aetrix Electronics maintains active inventory and supply chain continuity for legacy aerospace and defense programs dependent on this part.