JS28F640P30BF75D

Memory IC Overview

The JS28F640P30BF75D is a 64-Mbit (8-Mbyte) StrataFlash memory device manufactured by Micron Technology. It features a 4M x 16 organization and operates with a maximum access time of 75 ns. The component utilizes a 56-pin Thin Small Outline Package (TSOP). It supports parallel interface communication and includes data polling capabilities for status monitoring during write operations.

Memory IC Feature Summary

• Provides 64 Mbit of non-volatile storage capacity in a single-bit-per-cell architecture
• Supports standard parallel interface for embedded system integration
• Features fast access times suitable for code execution applications

Memory IC Applications

• Embedded systems requiring local code storage
• Legacy hardware firmware retention
• Industrial control system programming

Memory IC Procurement Notes

Verify the specific suffix BF75D to confirm the package type and temperature range, as variations exist within the JS28F640 family. Ensure compatibility with existing board layouts regarding the 56-pin TSOP footprint. Confirm RoHS compliance status if required for current manufacturing standards. Cross-reference the manufacturer date code to assess component age and reliability requirements for the intended deployment environment.

Memory IC Selection Notes

Select this component when a 64-Mbit density is required for parallel NOR flash applications. It is appropriate for designs needing direct code execution from memory. Consider the 75 ns access speed against system clock requirements. Evaluate the 56-pin TSOP package constraints against available PCB space. This part serves as a replacement for older generation StrataFlash devices in legacy designs.

Memory IC Part Context

This device belongs to Micron's StrataFlash product line, designed for high-reliability embedded applications. It offers a balance of performance and density for storing executable code. The technology supports multiple voltage levels typical for industrial and commercial grade components. It represents a mature solution for systems where NAND flash interfaces are unsuitable due to complexity or latency requirements.

Memory IC Replacement Considerations

Direct replacements include other 64-Mbit parallel NOR flash parts from Micron or competitors like Intel/Spansion. Verify pinout compatibility before substitution. Check if alternative packages such as TSOP II or BGA are available for the same density. Ensure voltage specifications match the target system power rails.