93L14FMQB

Latches Overview

The 93L14FMQB is a D-Type Transparent Latch manufactured by National Semiconductor, belonging to the 93L series. It features a single channel with four-bit parallel data storage capability and tri-state outputs that are non-inverted. The device is housed in a 14-pin Ceramic Flat Pack (CFP) package, specifically utilizing the J16A or W16A footprint. It operates within a temperature range of -55 °C to 125 °C and supports TTL logic levels.

Latches Feature Summary

• Provides transparent latching functionality for digital data storage applications
• Features tri-state outputs allowing bus line sharing and isolation
• Constructed with ceramic packaging for high reliability and thermal stability

Latches Applications

• Digital data buffering in industrial control systems
• Memory interface circuits requiring TTL compatibility
• High-reliability aerospace or military electronic assemblies

Latches Procurement Notes

Verify the manufacturer origin, as Rochester Electronics may distribute legacy National Semiconductor parts. Confirm the specific package variant (J16A or W16A) matches your PCB footprint requirements. Check RoHS compliance status, as this component is often classified as non-compliant due to its vintage manufacturing era. Ensure the supplier provides traceable documentation for critical applications.

Latches Selection Notes

Select this component when a robust, ceramic-packaged latch with tri-state output is required for harsh environments. It is suitable for designs needing TTL-level input compatibility and wide operating temperature ranges. Consider pinout compatibility with existing 14-pin flat pack layouts before integration into new schematics.

Latches Part Context

This part belongs to the National Semiconductor 93L series of high-performance logic devices. The series is known for radiation-hardened and high-reliability characteristics, often used in defense and space applications. The 93L14 variant specifically addresses the need for stable data retention in noisy or extreme conditions where standard plastic packages might fail.

Latches Replacement Considerations

Direct substitutes include other 93L-series latches from National Semiconductor or Texas Instruments. Verify pin-to-pin compatibility with equivalent ceramic flat pack components. Cross-reference with Rochester Electronics datasheets for updated electrical specifications if sourcing from secondary distributors.