DP8429TD-70

Controllers Overview

The DP8429TD-70 is a Dynamic RAM (DRAM) memory controller manufactured by National Semiconductor. It operates on TTL logic levels and is housed in a 52-pin Ceramic Dual In-line Package (CDIP). The device requires a supply voltage between 4.5V and 5.5V and supports an operating temperature range of 0°C to 70°C. Designed for through-hole mounting, this component facilitates the control and management of DRAM chips in electronic systems.

Controllers Feature Summary

• Supports dynamic RAM control applications using TTL logic interfaces
• Utilizes a robust 52-pin ceramic dual in-line package for durability
• Operates within standard industrial temperature ranges

Controllers Applications

• Dynamic RAM memory system design
• Industrial computing hardware
• Legacy embedded control systems

Controllers Procurement Notes

Verify the manufacturer origin, as National Semiconductor assets are now part of Texas Instruments. Confirm the specific suffix 'TD-70' matches the required speed grade and package material. Ensure compatibility with existing TTL logic levels and power supply constraints before procurement.

Controllers Selection Notes

Select this component when a dedicated TTL-based DRAM controller is required for legacy or specific industrial designs. Consider the 52-pin CDIP package size and through-hole mounting requirements during PCB layout. Verify that the 4.5V to 5.5V supply range aligns with the system's power architecture.

Controllers Part Context

This part belongs to the National Semiconductor DP8429 series of memory controllers. These devices were designed to manage complex timing and refresh cycles for DRAM arrays. The TD-70 variant specifically denotes the commercial temperature range and package configuration within this product line.

Controllers Replacement Considerations

Check for direct pin-compatible substitutes from Texas Instruments or other manufacturers offering equivalent DRAM controllers in 52-pin CDIP packages. Verify electrical specifications and timing parameters match the original design requirements.