IS25LQ032B-JNLE

Memory IC Overview

The IS25LQ032B-JNLE is a 32Mbit (4Mbyte) Quad Serial Flash Memory manufactured by ISSI. It features a Multi-I/O SPI interface supporting standard, dual, and quad modes with clock frequencies up to 104 MHz. The device operates on a single 2.3V to 3.6V supply and supports Execute In Place (XIP). It includes uniform 4Kbyte sectors and 32/64Kbyte blocks for flexible erasure. The memory offers advanced security with hardware/software write protection and a unique ID. It is housed in an 8-pin WSON 8x6mm package (suffix L) and supports Extended temperature grades.

Memory IC Feature Summary

• Supports high-speed Multi-I/O SPI interfaces including Dual and Quad I/O modes for efficient data throughput.
• Provides flexible memory architecture with uniform sector and block sizes for targeted erase operations.
• Integrates advanced security features including software-configurable block protection and hardware write protection via the WP# pin.
• Enables Execute In Place (XIP) operations with low instruction overhead and continuous read capabilities.

Memory IC Applications

• Code shadowing to RAM systems
• Execute In Place (XIP) firmware storage
• Non-volatile data logging and storage
• Embedded systems with limited pin count constraints

Memory IC Procurement Notes

Verify the package suffix 'L' corresponds to the 8-contact WSON 8x6mm form factor as specified in the datasheet. Confirm that the operating voltage range of 2.3V to 3.6V aligns with the system power rails. Ensure the SPI controller supports the required clock polarity and phase modes (Mode 0 or Mode 3) for proper communication synchronization.

Memory IC Selection Notes

Select this component when a compact footprint is required alongside high-speed serial access. The 8-pin WSON package minimizes board space compared to larger SOIC options. Consider the extended temperature range if the application environment exceeds standard commercial limits. Verify that the specific density requirements match the 32Mbit capacity rather than the 16Mbit or 8Mbit variants in the same series.

Memory IC Part Context

This part belongs to the IS25LQ0xxB series of 3V Quad Serial Flash Memories from Integrated Silicon Solution Inc. The series shares common interface protocols and command sets across different densities, facilitating design scalability. The JNLE designation indicates the specific density, package type, and tape-and-reel packaging configuration for automated assembly processes.

Memory IC Replacement Considerations

Direct substitutes within the same family include IS25LQ016B and IS25LQ080B, provided the memory density difference is acceptable. Other packages in the series such as IS25LQ032B-BNLE (SOIC 208mil) or IS25LQ032B-KNLE (WSON 6x5mm) offer pin-compatible alternatives with different physical footprints.