IS25LQ080B-JBLE Equivalent & Substitute Parts

Part Overview

The IS25LQ080B-JBLE is an 8Mbit NOR Flash memory IC featuring SPI and Quad I/O interfaces, manufactured by ISSI (Integrated Silicon Solution Inc). This component is designed for non-volatile data storage applications requiring high-speed serial access with quad-channel capability. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally compatible alternatives for ongoing design support and production requirements.

Substiute Parts

IS25LQ080B-JBLE

ISSI, Integrated Silicon Solution IncIn Stock: 2766IS25LQ080B-JBLE Datasheet

Current PartRFQ

IS25LP080D-JBLE

ISSI, Integrated Silicon Solution IncIn Stock: 25016IS25LP080D-JBLE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IS25LQ080B-JBLE is determined by strict equivalence across the following critical parameters:

• Memory capacity: 8Mbit (1M x 8 organization)
• Memory technology: FLASH - NOR
• Interface protocol: SPI with Quad I/O capability
• Package form factor: 8-SOIC with identical 5.30mm width
• Supply voltage range: 2.3V ~ 3.6V compatibility
• Operating temperature range: -40°C ~ 105°C
• Compliance standards: ROHS3 and REACH requirements

The IS25LP080D-JBLE qualifies as a direct substitute based on matching all mandatory electrical and mechanical parameters. Enhanced performance characteristics (133 MHz clock frequency, 800µs write cycle time, QPI and DTR support) represent functional improvements that do not compromise backward compatibility in applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The IS25LP080D-JBLE is the qualified substitute for the discontinued IS25LQ080B-JBLE. Selection is based on:

• Identical memory capacity, organization, and core interface specifications
• Matching electrical operating parameters (voltage, temperature range)
• Identical physical package footprint and pinout compatibility
• Active product status with verified availability
• Full compliance with ROHS3 and REACH regulatory requirements
• Enhanced performance specifications that provide operational margin without introducing compatibility risk

The substitute part maintains backward compatibility with existing PCB layouts and firmware implementations designed for the original component.

Frequently Asked Questions (FAQ)

Q: Can IS25LP080D-JBLE be used as a direct replacement for IS25LQ080B-JBLE?

A: Yes. Both parts share identical memory capacity (8Mbit), organization (1M x 8), core SPI Quad I/O interface, package form factor (8-SOIC), voltage range (2.3V ~ 3.6V), and operating temperature range (-40°C ~ 105°C). The substitute part is pin-compatible and functionally equivalent for applications designed for the original component.

Q: What are the differences between these two parts?

A: The IS25LP080D-JBLE offers enhanced performance with 133 MHz clock frequency (versus 104 MHz) and 800µs write cycle time (versus 1ms). It also supports additional interface modes (QPI and DTR). These improvements do not affect compatibility with existing designs.

Q: Is the package footprint identical?

A: Yes. Both parts use 8-SOIC packaging with 0.209" (5.30mm) width. PCB layouts and component placement require no modification.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings (3, 168 Hours). Regulatory requirements are equivalent.

Q: Why is the original part discontinued?

A: The IS25LQ080B-JBLE is discontinued at DiGi Electronics. The IS25LP080D-JBLE remains in active production and is the recommended alternative for new designs and production replenishment.