JS28F128J3F75B

Memory IC Overview

The JS28F128J3F75B is a 128 Mbit Parallel NOR Flash memory device manufactured by Alliance Memory. It operates within a voltage range of 2.7 V to 3.6 V and features an asynchronous interface with a maximum access time of 75 ns. The device supports flexible data bus configurations, offering 16 M x 8 or 8 M x 16 organization options. It is housed in a 56-lead TSOP package designed for surface mount technology. The component is rated for industrial operating temperatures ranging from -40°C to +85°C.

Memory IC Feature Summary

• Supports Chip-in-Xecution (XiP) for direct code execution from the flash array
• Provides uniform block architecture for consistent erase operations
• Compatible with Common Flash Interface (CFI) standards

Memory IC Applications

• Industrial embedded systems requiring reliable firmware storage
• Consumer electronics utilizing parallel NOR flash interfaces
• Automotive applications needing robust code storage solutions

Memory IC Procurement Notes

Verify current availability status as this component may be subject to discontinuation or limited supply conditions. Confirm exact ordering suffixes and packaging specifications against official manufacturer documentation prior to procurement. Ensure compatibility with existing system voltage levels and interface requirements.

Memory IC Selection Notes

Select this component for designs requiring high-speed random access and direct code execution capabilities. Consider the 75 ns access time and 128 Mbit density for applications demanding substantial non-volatile storage with fast read performance. Evaluate the 56-lead TSOP footprint against available PCB space constraints.

Memory IC Part Context

This part belongs to the J3 series of Parallel NOR Flash memories, representing a transition from legacy Intel/Numonyx products to Alliance Memory offerings. It maintains architectural compatibility with previous generations while leveraging advanced manufacturing processes for improved reliability and performance in standard parallel flash applications.

Memory IC Replacement Considerations

Check for pin-compatible alternatives such as the JS28F128J3F75A if sourcing the specific B suffix variant proves difficult. Verify electrical parameter equivalence before substituting any similar density parts from other manufacturers.