GD25Q127CSIGR Equivalent & Substitute Parts

Part Overview

The GD25Q127CSIGR is a 128Mbit NOR Flash memory IC with SPI Quad I/O interface, manufactured by GigaDevice Semiconductor (HK) Limited. This device is classified as Not For New Designs, indicating it has been superseded in the product lifecycle. The part is available in 8-SOP surface mount packaging and operates across the industrial temperature range of -40°C to 85°C. Due to its discontinued status for new designs, identifying compatible substitute parts with equivalent or enhanced specifications is necessary for ongoing system support and component procurement.

Substiute Parts

GD25Q127CSIGR

GigaDevice Semiconductor (HK) LimitedIn Stock: 7740GD25Q127CSIGR Datasheet

Current PartRFQ

GD25Q128ESIGR

GigaDevice Semiconductor (HK) LimitedIn Stock: 36947GD25Q128ESIGR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GD25Q127CSIGR is determined by the following critical parameters:

• Memory Size: 128Mbit (exact match required)
• Memory Organization: 16M x 8 (exact match required)
• Memory Interface: SPI - Quad I/O (exact match required)
• Voltage Supply Range: 2.7V ~ 3.6V (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Package Type: 8-SOIC with 0.209" width, 5.30mm (exact match required)
• Mounting Type: Surface Mount (exact match required)

The GD25Q128ESIGR meets all substitution criteria. While it features enhanced clock frequency (133 MHz versus 104 MHz) and improved access time (7 ns), these represent performance improvements rather than deviations from core specifications. The substitute maintains identical memory capacity, organization, interface protocol, voltage requirements, temperature range, and physical packaging.

Parameter Comparison

Engineering Selection Recommendations

The GD25Q128ESIGR is the qualified substitute for the GD25Q127CSIGR based on the following engineering criteria:

• Both devices maintain identical core memory specifications (128Mbit capacity, 16M x 8 organization, SPI Quad I/O interface)
• Both operate within the same voltage supply range (2.7V ~ 3.6V) and temperature range (-40°C ~ 85°C)
• Both are housed in identical 8-SOIC surface mount packages with matching physical dimensions
• Both comply with ROHS3 and REACH requirements
• The GD25Q128ESIGR carries Active product status, ensuring ongoing availability and support, whereas the GD25Q127CSIGR is designated Not For New Designs
• The GD25Q128ESIGR provides enhanced performance characteristics (133 MHz clock frequency versus 104 MHz, 7 ns access time) without compromising backward compatibility at the functional level

For applications currently using the GD25Q127CSIGR, the GD25Q128ESIGR provides a direct functional replacement with performance improvements and active product lifecycle status.

Frequently Asked Questions (FAQ)

Q: Can the GD25Q128ESIGR be used as a direct replacement for the GD25Q127CSIGR in existing designs?

A: Yes. Both devices share identical memory capacity (128Mbit), organization (16M x 8), interface protocol (SPI Quad I/O), voltage requirements (2.7V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and physical packaging (8-SOIC). The GD25Q128ESIGR operates at higher clock frequency (133 MHz) and lower access time (7 ns), representing performance enhancements rather than incompatibilities.

Q: What is the significance of the product status difference between these parts?

A: The GD25Q127CSIGR is marked Not For New Designs, indicating it has reached end-of-life status in GigaDevice's product portfolio. The GD25Q128ESIGR carries Active status, ensuring continued manufacturing, availability, and technical support. For new system designs or long-term component procurement, the Active status part is the appropriate selection.

Q: Are there any packaging or mounting differences between these devices?

A: No. Both devices are supplied in 8-SOIC surface mount packages with identical physical dimensions (0.209" width, 5.30mm). They are compatible with the same PCB footprints and assembly processes.

Q: How do the write cycle times compare between these parts?

A: The page write cycle time is identical at 2.4ms for both devices. The word write cycle time differs: GD25Q127CSIGR specifies 12µs while GD25Q128ESIGR specifies 70µs. This difference should be evaluated against specific application timing requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the GD25Q127CSIGR and GD25Q128ESIGR are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.