DP8430V-33

Controllers Overview

The DP8430V-33 is a microCMOS programmable Dynamic RAM (DRAM) controller and driver manufactured by National Semiconductor. It supports memory configurations of 256k, 1M, and 4M densities. The device operates within a supply voltage range of 4.5V to 5.5V and functions at an operating temperature between 0°C and 70°C. It is housed in a 68-pin PLCC package measuring 25.13x25.13 mm.

Controllers Feature Summary

• Programmable architecture for supporting multiple DRAM densities
• Integrated controller and driver functionality for dynamic RAM systems

Controllers Applications

• Computer memory subsystems requiring DRAM control
• Industrial computing equipment with standard voltage requirements
• Embedded systems utilizing 256k, 1M, or 4M DRAM modules

Controllers Procurement Notes

Verify the component origin as National Semiconductor, now part of Texas Instruments. Confirm the specific suffix indicates the 33 variant characteristics. Check RoHS compliance status, as sources indicate non-compliance. Ensure the package matches the 68-PLCC specification before procurement.

Controllers Selection Notes

Select this component when a dedicated DRAM controller is required for legacy or specific industrial designs. It is suitable for applications needing support for varying DRAM densities without external logic. Consider the 0°C to 70°C operating range for environmental constraints.

Controllers Part Context

This part belongs to the DP8430/31/32 series of microCMOS programmable DRAM controllers. These components were designed to manage timing and refresh cycles for dynamic memory. The series provides a standardized interface for integrating DRAM into system architectures.

Controllers Replacement Considerations

Consult official datasheets for direct pin-compatible substitutes within the DP8430 series. Verify electrical parameters and package dimensions before substituting.