IS25WD020-JBLE-TR Equivalent & Substitute Parts

Part Overview

The IS25WD020-JBLE-TR is a 2Mbit NOR Flash memory IC manufactured by ISSI (Integrated Silicon Solution Inc) in an 8-SOIC surface mount package. This device operates at 80 MHz with SPI interface and is designed for non-volatile memory applications requiring low-voltage operation (1.65V to 1.95V). The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

IS25WD020-JBLE-TR

ISSI, Integrated Silicon Solution IncIn Stock: 1005IS25WD020-JBLE-TR Datasheet

Current PartRFQ

IS25WQ020-JBLE

ISSI, Integrated Silicon Solution IncIn Stock: 1085IS25WQ020-JBLE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IS25WD020-JBLE-TR is determined by strict equivalence in the following parameters:

• Memory Capacity: 2Mbit (256K x 8 organization)
• Interface Protocol: SPI
• Supply Voltage Range: 1.65V ~ 1.95V
• Package Type: 8-SOIC form factor
• Operating Temperature Range: -40°C ~ 105°C
• Compliance Standards: ROHS3 and REACH requirements

The IS25WQ020-JBLE qualifies as a direct substitute because it maintains identical memory capacity, organization, interface, voltage specifications, temperature range, package configuration, and regulatory compliance. Variations in clock frequency and write cycle time do not preclude substitution when the substitute device meets or exceeds the performance requirements of the original specification.

Parameter Comparison

Engineering Selection Recommendations

The IS25WQ020-JBLE is the qualified substitute for the obsolete IS25WD020-JBLE-TR. Selection of this substitute is supported by:

• Identical Core Specifications: Memory capacity, organization, interface protocol, voltage range, temperature range, and package form factor are fully matched.
• Active Product Status: The substitute part is currently in active production, ensuring long-term availability and supply chain continuity.
• Enhanced Performance: The substitute device provides higher clock frequency (104 MHz vs. 80 MHz) and faster write cycle time (1ms vs. 3ms), delivering improved performance characteristics without compromising compatibility.
• Regulatory Compliance: Both parts maintain ROHS3 and REACH compliance, with identical moisture sensitivity ratings suitable for standard PCB assembly and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can IS25WQ020-JBLE be used as a direct replacement for IS25WD020-JBLE-TR?

A: Yes. Both devices share identical memory capacity (2Mbit), organization (256K x 8), SPI interface, supply voltage range (1.65V ~ 1.95V), operating temperature range (-40°C ~ 105°C), and 8-SOIC package configuration. The substitute part is pin-compatible and functionally equivalent.

Q: What are the differences between these two parts?

A: The primary differences are clock frequency (80 MHz vs. 104 MHz) and write cycle time (3ms vs. 1ms). The substitute part offers superior performance specifications. Both parts maintain identical voltage, temperature, package, and compliance characteristics.

Q: Is the 8-SOIC package identical between both parts?

A: Yes. Both parts use the same 8-SOIC package with 0.209" width and 5.30mm body dimension. PCB footprints and assembly processes are identical.

Q: Are there any supply voltage or temperature range differences?

A: No. Both parts operate within the identical voltage range of 1.65V to 1.95V and temperature range of -40°C to 105°C. System power supply and thermal design requirements remain unchanged.

Q: What is the significance of the product status difference?

A: The main part (IS25WD020-JBLE-TR) is obsolete and no longer manufactured. The substitute part (IS25WQ020-JBLE) is in active production, ensuring availability for new designs and ongoing system support.