SN54LS469AL/883B

Counter Dividers Overview

The SN54LS469AL/883B is a high-reliability, military-grade programmable controller and timer manufactured by Advanced Micro Devices. It utilizes Low-Power Schottky TTL technology to provide robust performance in demanding environments. The component features an integrated oscillator with selectable clock sources, allowing for flexible timing configurations. It includes a 12-bit counter/timer and a 10-bit address register, supporting complex control sequences. Designed for extended operational stability, it operates across the full military temperature range of -55°C to +125°C. The device is housed in a hermetically sealed ceramic package, ensuring durability against harsh conditions.

Counter Dividers Feature Summary

• Integrates a programmable controller with a 12-bit counter and 10-bit address register for complex logic sequencing
• Features an internal oscillator with selectable external or internal clock inputs for flexible timing control
• Constructed using Low-Power Schottky (LS) TTL technology to balance speed and power consumption
• Built within a hermetically sealed ceramic package designed for high reliability in military applications

Counter Dividers Applications

• Military guidance and navigation systems requiring precise timing and control
• Avionics subsystems operating under extreme environmental conditions
• Spacecraft telemetry and command processing units
• High-reliability industrial automation controllers

Counter Dividers Procurement Notes

Verify that the part number suffix /883B confirms compliance with MIL-PRF-38535 specifications. Ensure the manufacturer is Advanced Micro Devices or an authorized licensee. Confirm the presence of the QML (Qualified Manufacturers List) designation if required for specific defense contracts. Check for lot traceability and screening reports to guarantee authenticity and performance consistency.

Counter Dividers Selection Notes

Select this component when a hermetically sealed, military-grade programmable controller is required. It is suitable for designs needing a built-in timer with multiple clock options. Consider its LS-TTL interface compatibility with existing digital logic families. Evaluate the need for its specific 12-bit and 10-bit register capacities against simpler microcontrollers.

Counter Dividers Part Context

This device belongs to the SN54LS series, which denotes Low-Power Schottky TTL logic optimized for military use. The 'SN54' prefix indicates space-grade or military qualification, while 'LS' specifies the technology type. The '/883B' suffix signifies adherence to MIL-PRF-38535 standards, distinguishing it from commercial variants. It serves as a specialized control element within larger digital systems.

Counter Dividers Replacement Considerations

Direct replacements must match the SN54LS469 functionality and hermetic packaging. Verify equivalent parts from AMD or other qualified manufacturers holding the same 883B certification. Ensure pinout compatibility and identical electrical characteristics for military temperature ranges.