AM33C93A-20KC/W

Overview

The AM33C93A-20KC/W is a high-speed CMOS ECL (Emitter-Coupled Logic) multiplexer manufactured by Advanced Micro Devices. This component features a 4-bit wide, 8-to-1 data selection architecture with differential inputs and outputs. It operates within a supply voltage range of -4.5V to -5.5V, utilizing negative power rails typical for ECL circuits. The device supports a maximum clock frequency of 200 MHz, enabling rapid data routing in high-performance digital systems. Packaged in a 28-pin ceramic dual in-line package (CDIP), it is designed for robust operation in demanding environments.

Feature Summary

• CMOS ECL technology for high-speed signal processing
• 8-to-1 multiplexing configuration with 4-bit word width
• Differential input and output stages for noise immunity
• 200 MHz maximum operating frequency

Applications

• High-speed data acquisition systems
• Telecommunications equipment requiring fast signal switching
• Test and measurement instrumentation
• Digital communication interfaces

Procurement Notes

Verify the specific suffix 'W' against the manufacturer's datasheet to confirm if it denotes a hermetic ceramic package or a specific temperature grade. Ensure compatibility with -5V ECL power supplies and termination resistors. Confirm lead availability through authorized distributors as legacy ECL components may have limited stock.

Selection Notes

Select this component when a high-speed, low-latency 8-to-1 multiplexer is required in an ECL logic family design. Compare propagation delay specifications against system timing requirements. Ensure the 28-pin CDIP footprint matches the PCB layout constraints. Verify that the differential I/O characteristics align with the source and destination device impedance levels.

Part Context

This part belongs to the AMD AM33C93 series of high-speed multiplexers. The AM33C93 family is known for its use in applications requiring fast data routing between multiple sources. The 'A' variant typically indicates an improved speed grade or revision over earlier versions, while the 'K' often refers to the ceramic DIP package type.

Replacement Considerations

Direct pin-compatible replacements from other manufacturers should be verified for identical ECL voltage levels and pinout configurations. Check for equivalent propagation delays and power consumption profiles. Consider modern LVDS alternatives if system power budgets allow for a transition away from traditional ECL standards.