CD40105BK

FIFOs Memory Overview

The CD40105BK is a 4-bit by 16 FIFO buffer register manufactured by Harris Corporation. It belongs to the 4000/14000/40000 series of CMOS logic devices. The component is housed in a ceramic flatpack package and operates within a supply voltage range of 3V to 18V. It supports a wide operating temperature range from -55°C to 125°C. The device functions as a first-in, first-out memory buffer for digital data storage and retrieval.

FIFOs Memory Feature Summary

• Provides 4-bit by 16 word depth buffering capability
• Utilizes CMOS technology for low power consumption
• Supports TTL level translation between input and output stages
• Features ceramic flatpack construction for durability

FIFOs Memory Applications

• Digital data buffering in communication systems
• Temporary storage in microprocessor interfaces
• Signal processing pipeline staging
• Memory expansion in embedded control systems

FIFOs Memory Procurement Notes

Verify RoHS compliance status as the component is listed as non-compliant. Confirm moisture sensitivity level (MSL 3) requirements for surface mount assembly processes. Ensure sourcing from authorized distributors to guarantee authenticity given the manufacturer's history. Check for lead-free alternatives if environmental regulations apply to the final product deployment.

FIFOs Memory Selection Notes

Select this component when a fixed-depth FIFO buffer is required for 4-bit data paths. Consider the ceramic package for high-temperature environments exceeding standard plastic limits. Evaluate the 3V to 18V supply range compatibility with existing system power rails. Verify interface timing requirements against the specific application's clock speeds.

FIFOs Memory Part Context

This part is part of the CD4000 series of CMOS logic integrated circuits produced by Harris Corporation. The series includes various logic gates, buffers, and flip-flops. The CD40105 specifically addresses the need for sequential data storage without external microcontroller intervention. It serves as a foundational building block for complex digital logic designs requiring temporary data holding capabilities.

FIFOs Memory Replacement Considerations

Check for direct pin-compatible substitutes within the same 4000 series family. Verify that alternative FIFO buffers match the 4-bit width and 16-word depth specifications. Ensure replacement components support the same ceramic flatpack footprint and thermal characteristics.