TMS48C138-10DJ

Overview

The TMS48C138-10DJ is a 128K x 8 Fast Page Mode Dynamic Random Access Memory (DRAM) manufactured by Texas Instruments. It features a CMOS technology and offers an access time of 100 nanoseconds. The device is housed in a 24-pin Plastic Small Outline (PDSO) package with a width of 0.300 inches. This component is designed for high-speed data storage applications requiring fast page mode operations.

Feature Summary

• Supports Fast Page Mode DRAM operations for efficient sequential data access
• Utilizes CMOS technology for low power consumption
• Provides 128K x 8 memory density configuration

Applications

• Embedded systems requiring volatile memory storage
• Industrial control units needing fast page access
• Consumer electronics with limited space constraints

Procurement Notes

Verify the specific suffix '10DJ' to confirm the 100ns access time and PDSO package variant. Ensure compatibility with existing system voltage levels and interface requirements before integration. Confirm active status and availability through authorized channels, as older memory components may have limited supply chains or require alternative sourcing strategies.

Selection Notes

Select this component when a 128K x 8 capacity is required with 100ns access speed. The PDSO package suits surface-mount applications with moderate pin count needs. Consider thermal dissipation characteristics inherent to CMOS DRAMs and ensure the design supports the necessary refresh cycles for stable operation in the target environment.

Part Context

This part belongs to the TMS48C138 series of Fast Page DRAMs from Texas Instruments. It represents a legacy memory solution using CMOS processes. The series typically includes variants with different access times, such as the 70ns version, allowing designers to choose based on performance requirements within the same physical footprint and functional architecture.

Replacement Considerations

The TMS48C138-70DJ is a verified substitute offering faster 70ns access time within the same series. Both parts share identical pinouts and functionality, differing only in speed grade. Verify that the system timing constraints accommodate the selected variant's access specifications.