TMS44165-80DZ

Overview

The TMS44165-80DZ is a Fast Page Mode Dynamic Random Access Memory (DRAM) integrated circuit manufactured by Texas Instruments. It provides a memory density of 256K x 16 bits, organized as 256 kilowords with a 16-bit data width. The device features an access time of 80 nanoseconds, indicated by the -80 suffix. It utilizes a Dual In-line Package (DIP) configuration, designated by the 'DZ' suffix, suitable for through-hole mounting on printed circuit boards.

Feature Summary

• Supports Fast Page Mode operation for efficient sequential data access
• Provides 16-bit data bus width for parallel data transfer
• Designed for high-speed dynamic random access memory applications

Applications

• Computer system main memory modules
• Industrial control systems requiring volatile storage
• Embedded computing architectures using legacy interfaces

Procurement Notes

Verify the specific package type and pinout compatibility with your design before procurement. Confirm that the component meets all environmental compliance standards required for your final assembly. Ensure that the supply source provides authentic parts to avoid counterfeit risks associated with older semiconductor technologies.

Selection Notes

Select this component when a 256K x 16 bit DRAM with 80ns access speed is required. Consider the DIP package constraints if space is limited. Evaluate power consumption and thermal requirements relative to the system's cooling capabilities. Compare against newer alternatives if higher density or lower voltage operation is needed.

Part Context

This part belongs to the Texas Instruments TMS44165 series of Fast Page DRAMs. It represents a generation of memory technology used in personal computers and industrial equipment during the late 1980s and early 1990s. The series was designed to offer improved performance over earlier static RAM solutions while maintaining cost-effectiveness for large memory capacities.

Replacement Considerations

Direct replacements may include other TMS44165 variants with different access times or package options. Verify electrical compatibility and pin assignments before substituting. Cross-reference with manufacturer obsolescence notices to ensure long-term availability.