GD25VE40CTIG Equivalent & Substitute Parts

Part Overview

The GD25VE40CTIG is a 4Mbit NOR Flash memory IC manufactured by GigaDevice Semiconductor with SPI/Quad I/O interface capability. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for ongoing production support, maintenance applications, and legacy system repairs where continued component availability is required.

Key Parameters

Parameter	Value
Memory Size	4Mbit
Memory Organization	512K x 8
Memory Interface	SPI - Quad I/O
Memory Type	Non-Volatile FLASH
Technology	FLASH - NOR
Clock Frequency	104 MHz
Voltage Supply Range	2.1V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the GD25VE40CTIG is determined by strict equivalence across the following critical parameters:

Memory Capacity & Organization: 4Mbit capacity with 512K x 8 organization
Interface Protocol: SPI with Quad I/O support
Package Compatibility: 8-SOIC form factor with identical 0.154" (3.90mm) width
Voltage Compatibility: Supply voltage range must accommodate the original specification
Temperature Range: Operating temperature envelope must match or exceed -40°C to 85°C
Compliance Standards: RoHS3 compliance and MSL rating equivalence

The MX25R4035FM1IH1 meets all substitution criteria through identical memory capacity, organization, interface type, and package specifications. Clock frequency variation (108 MHz vs. 104 MHz) and expanded voltage range (1.65V ~ 3.6V) represent performance enhancements that do not compromise compatibility.

Parameter Comparison

Parameter	GD25VE40CTIG	MX25R4035FM1IH1	Compatibility
Memory Size	4Mbit	4Mbit	Equivalent
Memory Organization	512K x 8	512K x 8	Equivalent
Memory Interface	SPI - Quad I/O	SPI - Quad I/O	Equivalent
Clock Frequency	104 MHz	108 MHz	Compatible (Higher)
Voltage Supply Range	2.1V ~ 3.6V	1.65V ~ 3.6V	Compatible (Wider Range)
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Equivalent
Package Type	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
MSL Rating	3 (168 Hours)	3 (168 Hours)	Equivalent

Engineering Selection Recommendations

The MX25R4035FM1IH1 is a direct functional substitute for the GD25VE40CTIG based on electrical and mechanical parameter equivalence. Both devices share identical memory capacity, organization, interface protocol, package form factor, and compliance certifications. The substitute part offers enhanced clock frequency (108 MHz) and expanded voltage supply range (1.65V ~ 3.6V), which provide operational flexibility without introducing compatibility concerns. Both parts maintain "Not For New Designs" status, confirming their role in legacy system support rather than new product development.

Frequently Asked Questions (FAQ)

Q: Can the MX25R4035FM1IH1 be used as a direct replacement for the GD25VE40CTIG in existing PCB designs?

A: Yes. Both parts share identical package dimensions (8-SOIC, 0.154" width), pinout compatibility through equivalent SPI/Quad I/O interface, and matching operating temperature range. No PCB layout modifications are required.

Q: What is the significance of the higher clock frequency (108 MHz vs. 104 MHz) in the substitute part?

A: The higher clock frequency in the MX25R4035FM1IH1 represents a performance enhancement. It does not create compatibility issues with systems designed for the 104 MHz GD25VE40CTIG, as the substitute operates at a faster speed while maintaining full protocol compliance.

Q: Does the expanded voltage range (1.65V ~ 3.6V) of the MX25R4035FM1IH1 affect compatibility?

A: No. The expanded lower voltage limit (1.65V vs. 2.1V) provides additional operational flexibility. Systems designed for the GD25VE40CTIG's 2.1V ~ 3.6V range operate within the substitute part's specification envelope.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the GD25VE40CTIG and MX25R4035FM1IH1 carry ROHS3 compliance certification, ensuring regulatory equivalence for applications requiring lead-free component standards.

Q: What is the MSL rating, and does it differ between these parts?

A: Both parts carry MSL rating 3 (168 Hours), indicating identical moisture sensitivity levels and identical handling requirements during storage and assembly processes.

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