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W29GL032CT7S Equivalent & Substitute Parts
Part Overview
The W29GL032CT7S is a 32Mbit parallel NOR Flash memory IC manufactured by Winbond Electronics in a 48-TSOP surface mount package. This device operates at 2.7V to 3.6V supply voltage with a 70 ns access time and supports 4M x 8 or 2M x 16 memory organization. The W29GL032CT7S is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain identical electrical specifications, package dimensions, and interface characteristics to ensure direct compatibility without circuit redesign.
Substiute Parts
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 |
| Supply Voltage | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C |
| Package Type | 48-TFSOP (0.724", 18.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitute parts for the W29GL032CT7S are qualified based on the following critical parameters that determine functional and physical compatibility:
Electrical Compatibility Criteria:
- Memory Size: 32Mbit (identical capacity required)
- Memory Format: FLASH - NOR technology
- Memory Interface: Parallel interface
- Access Time: 70 ns (matching speed specification)
- Write Cycle Time: 70 ns
- Supply Voltage: 2.7V ~ 3.6V (identical operating range)
- Operating Temperature: -40°C ~ 85°C
Physical Compatibility Criteria:
- Package Type: 48-TFSOP with 0.724" (18.40mm) width
- Mounting Type: Surface Mount
- Supplier Device Package: 48-TSOP
Compliance Criteria:
- RoHS3 Compliance
- Moisture Sensitivity Level: 3 (168 Hours)
The substitute parts MX29LV320EBTI-70G and MX29LV320ETTI-70G from Macronix meet all specified electrical, physical, and compliance requirements. Both devices are active products with verified programmability status, providing direct functional replacement for the obsolete W29GL032CT7S.
Parameter Comparison
| Parameter | W29GL032CT7S (Winbond) | MX29LV320EBTI-70G (Macronix) | MX29LV320ETTI-70G (Macronix) |
|---|---|---|---|
| Memory Size | 32Mbit | 32Mbit | 32Mbit |
| Memory Format | FLASH | FLASH | FLASH |
| Technology | FLASH - NOR | FLASH - NOR | FLASH - NOR |
| Memory Organization | 4M x 8, 2M x 16 | 4M x 8 | 4M x 8 |
| Memory Interface | Parallel | Parallel | Parallel |
| Access Time | 70 ns | 70 ns | 70 ns |
| Write Cycle Time | 70 ns | 70 ns | 70 ns |
| Supply Voltage | 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 |
| Package / Case | 48-TFSOP (0.724", 18.40mm Width) | 48-TFSOP (0.724", 18.40mm Width) | 48-TFSOP (0.724", 18.40mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
Engineering Selection Recommendations
Primary Substitute Recommendation:
Both MX29LV320EBTI-70G and MX29LV320ETTI-70G from Macronix are qualified direct substitutes for the W29GL032CT7S. Selection between these two Macronix variants depends on packaging and inventory requirements:
MX29LV320EBTI-70G: This variant is recommended for applications requiring standard tray packaging. The device is active in production with 61,108 units in stock and carries verified programmability status. All electrical parameters, physical dimensions, and compliance certifications match the W29GL032CT7S specification.
MX29LV320ETTI-70G: This variant is recommended as an alternative active substitute with 40,300 units in stock. This device also carries verified programmability status and meets all substitution criteria. Selection between EBTI and ETTI variants should be based on specific packaging requirements and supply chain availability.
Compliance Assurance:
Both substitute parts maintain ROHS3 compliance and identical moisture sensitivity levels (MSL 3, 168 Hours), ensuring compatibility with existing manufacturing and storage protocols. The supply voltage range (2.7V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and access time (70 ns) are identical across all three devices, eliminating the need for circuit modifications or timing adjustments.
Frequently Asked Questions (FAQ)
Q: Can MX29LV320EBTI-70G or MX29LV320ETTI-70G be used as direct replacements for W29GL032CT7S without circuit modification?
A: Yes. Both Macronix devices are direct substitutes. All critical electrical parameters including supply voltage (2.7V ~ 3.6V), access time (70 ns), memory size (32Mbit), and parallel interface specifications are identical. The 48-TFSOP package dimensions match exactly, enabling direct PCB compatibility.
Q: What is the difference between MX29LV320EBTI-70G and MX29LV320ETTI-70G?
A: Both devices are functionally equivalent with identical electrical specifications and package dimensions. The designation difference (EBTI vs. ETTI) reflects internal device variants within the Macronix MX29LV320 series. Selection should be based on packaging format and supply availability.
Q: Are the substitute parts RoHS compliant?
A: Yes. Both MX29LV320EBTI-70G and MX29LV320ETTI-70G are ROHS3 compliant, matching the compliance status of the W29GL032CT7S.
Q: What is the moisture sensitivity level for these substitute parts?
A: Both substitute parts have a Moisture Sensitivity Level (MSL) of 3 with a 168-hour floor life, identical to the W29GL032CT7S specification.
Q: Can these devices operate at the same temperature range as the original W29GL032CT7S?
A: Yes. All three devices operate across the identical temperature range of -40°C to 85°C (TA).
Q: Is the memory organization compatible between the W29GL032CT7S and substitute parts?
A: The W29GL032CT7S supports both 4M x 8 and 2M x 16 organization. The Macronix substitutes support 4M x 8 organization, which is compatible with applications using the 4M x 8 configuration of the original device.
Q: What is the access time specification for these parts?
A: All three devices have an access time of 70 ns, ensuring timing compatibility in existing circuit designs.
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