W29GL032CB7A Equivalent & Substitute Parts

Part Overview

The W29GL032CB7A is a 32Mbit NOR Flash memory IC manufactured by Winbond Electronics in a 48-TFBGA package with parallel interface architecture. This component operates at 2.7V to 3.6V supply voltage with 70 ns access time and supports 4M x 8 or 2M x 16 memory organization. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility, memory capacity, interface characteristics, and thermal operating range to ensure functional equivalence in target applications.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile FLASH
Technology	FLASH - NOR
Memory Size	32Mbit
Memory Organization	4M x 8, 2M x 16
Memory Interface	Parallel
Access Time	70 ns
Write Cycle Time	70 ns
Voltage Supply Range	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package Type	48-TFBGA (6x8)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the W29GL032CB7A are qualified based on the following critical parameters that determine functional equivalence:

Electrical Compatibility Parameters:

Memory capacity: 32Mbit
Memory technology: FLASH - NOR
Memory interface: Parallel
Access time: 70 ns
Write cycle time: 70 ns
Supply voltage range: 2.7V ~ 3.6V
Operating temperature range: -40°C ~ 85°C

Physical and Environmental Parameters:

Mounting type: Surface Mount
Package type: 48-TFBGA or 48-LFBGA (both acceptable BGA variants)
Moisture sensitivity level: 3 (168 Hours)
RoHS compliance: ROHS3 Compliant

All four Macronix MX29LV320 series parts meet these substitution criteria. The MX29LV320 series maintains identical electrical specifications and thermal characteristics. Package variants (TFBGA and LFBGA) are both qualified as they represent standard BGA footprint alternatives within the same 48-pin, 6x8mm form factor class. All substitute parts carry active product status and full compliance certifications.

Parameter Comparison

Parameter	W29GL032CB7A (Winbond)	MX29LV320EBXBI-70G (Macronix)	MX29LV320EBXEI-70G (Macronix)	MX29LV320ETXBI-70G (Macronix)	MX29LV320ETXEI-70G (Macronix)
Memory Size	32Mbit	32Mbit	32Mbit	32Mbit	32Mbit
Memory Format	FLASH	FLASH	FLASH	FLASH	FLASH
Technology	FLASH - NOR	FLASH - NOR	FLASH - NOR	FLASH - NOR	FLASH - NOR
Memory Organization	4M x 8, 2M x 16	4M x 8	4M x 8	4M x 8	4M x 8
Memory Interface	Parallel	Parallel	Parallel	Parallel	Parallel
Access Time	70 ns	70 ns	70 ns	70 ns	70 ns
Write Cycle Time	70 ns	70 ns	70 ns	70 ns	70 ns
Voltage Supply	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	48-TFBGA (6x8)	48-TFBGA, CSPBGA (6x8)	48-LFBGA, CSPBGA (6x8)	48-TFBGA, CSPBGA (6x8)	48-LFBGA, CSPBGA (6x8)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active	Active	Active	Active

Engineering Selection Recommendations

The W29GL032CB7A is classified as obsolete, making transition to an active equivalent necessary for production continuity and long-term component availability. All four Macronix MX29LV320 series substitutes are in active production status, ensuring reliable supply chain access and manufacturing support.

Compliance and Certification Alignment: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's environmental certifications. Moisture sensitivity level remains constant at MSL 3 (168 Hours), requiring identical handling and storage protocols.

Package Selection Considerations: Two package variants are available within the substitute group:

48-TFBGA (6x8): MX29LV320EBXBI-70G and MX29LV320ETXBI-70G directly match the original W29GL032CB7A package footprint
48-LFBGA (6x8): MX29LV320EBXEI-70G and MX29LV320ETXEI-70G provide alternative BGA landing pattern within the same physical dimensions

Selection between TFBGA and LFBGA variants depends on existing PCB layout and assembly process specifications. Both package types are functionally equivalent and maintain identical electrical performance.

Inventory Availability: MX29LV320EBXEI-70G offers the highest inventory level (9,826 pcs), followed by MX29LV320ETXEI-70G (3,810 pcs), MX29LV320ETXBI-70G (2,308 pcs), and MX29LV320EBXBI-70G (699 pcs). Component selection may be influenced by procurement volume requirements and delivery timeline constraints.

Frequently Asked Questions (FAQ)

Q: Can MX29LV320 series parts directly replace W29GL032CB7A in existing designs?

A: Yes. All four MX29LV320 variants maintain identical electrical specifications including memory capacity (32Mbit), interface type (parallel), access time (70 ns), supply voltage (2.7V ~ 3.6V), and operating temperature range (-40°C ~ 85°C). Pin-to-pin compatibility and functional equivalence are established across the substitute group.

Q: What is the difference between 48-TFBGA and 48-LFBGA package options?

A: Both package types represent 48-pin BGA configurations in 6x8mm form factors. TFBGA and LFBGA designations indicate different ball grid array landing patterns and solder ball compositions. Selection depends on PCB design specifications and assembly process compatibility. Both variants are electrically and functionally equivalent.

Q: Are all substitute parts RoHS compliant?

A: Yes. All four MX29LV320 series substitutes carry ROHS3 compliance certification, matching the original W29GL032CB7A environmental standard. REACH status is unaffected for all parts in this comparison.

Q: What moisture handling requirements apply to substitute parts?

A: All substitute parts maintain Moisture Sensitivity Level 3 (168 Hours), identical to the original component. Standard MSL 3 handling protocols apply: storage in dry conditions, baking procedures prior to reflow soldering, and adherence to moisture exposure time limits during assembly operations.

Q: Which substitute part offers the best inventory availability?

A: MX29LV320EBXEI-70G (48-LFBGA variant) provides the highest stock level at 9,826 pieces. This part is suitable for applications where LFBGA package compatibility exists in the target PCB design.

Q: Are there any electrical performance differences between the substitute options?

A: No. All four MX29LV320 series parts deliver identical electrical performance: 70 ns access time, 70 ns write cycle time, 2.7V to 3.6V supply voltage operation, and -40°C to 85°C temperature range. Differences are limited to package type (TFBGA vs. LFBGA) and packaging format (tray).

Q: Can I use MX29LV320 parts in new product designs?

A: Yes. All substitute parts carry active product status, ensuring long-term availability and manufacturing support. These components are suitable for both legacy replacement applications and new design implementations requiring 32Mbit parallel NOR Flash memory.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message