IS25LQ032B-JLLE

Memory IC Overview

The IS25LQ032B-JLLE-TR is a 32Mbit (4Mbyte) Quad Serial Flash memory from ISSI, housed in an 8-pin WSON 8x6mm package. It operates on a single 2.3V to 3.6V supply and supports SPI modes 0 and 3 with clock frequencies up to 104 MHz. The device delivers 52MB/s continuous data throughput via Quad I/O and features 256-byte programmable pages. It offers over 100,000 erase/program cycles, more than 20-year data retention, and extended temperature operation from -40°C to +105°C.

Memory IC Feature Summary

• Supports Standard SPI, Dual, and Quad Multi-I/O interfaces with SFDP compatibility
• Enables Execute In Place (XIP) operations with low instruction overhead
• Provides flexible memory architecture with uniform 4Kbyte sectors and 32/64Kbyte blocks
• Includes hardware and software write protection with dedicated security areas

Memory IC Applications

• Code shadowing to RAM
• Execute in place (XIP) operations
• Storing non-volatile data

Memory IC Procurement Notes

Verify the specific suffix JLLE corresponds to the 8-contact WSON 8x6mm package configuration as defined in the datasheet ordering information. Confirm that the Extended Temperature Grade (-40°C to +105°C) meets system requirements, noting that this grade is not recommended for automotive applications despite the wide range. Ensure the device status is reviewed as distribution listings may indicate end-of-life or discontinuance.

Memory IC Selection Notes

Select this component when a simplified pin count and limited space are critical constraints alongside high-performance serial access. The IS25LQ032B is suitable for systems requiring direct interface with SPI microcontrollers without complex parallel bus management. Consider the 8-pin WSON package for compact surface-mount designs. Evaluate the need for Quad I/O speeds versus standard SPI if power consumption during active read states is a primary design driver.

Memory IC Part Context

The IS25LQ032B belongs to the IS25LQ series of 3V Quad Serial Flash memories manufactured by Integrated Silicon Solution Inc. This series includes variants with different densities such as the 16Mbit IS25LQ016B and 8Mbit IS25LQ080B. All members share the same industry-standard serial interface and architectural features, allowing for potential density upgrades within the same footprint family.

Memory IC Replacement Considerations

Direct substitutes include the IS25LQ016B and IS25LQ080B from the same ISSI family, provided the application can accommodate the reduced storage capacity. Verify that the replacement part number matches the required package type and temperature grade specifications.