CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

Memory

PRODUCT DATASHEET

ChipNobo MPN

NB29F040QC-90

GLOBAL BRAND CROSS-REFERENCE

Macronix

FLASH NOR 4MB 5V 32-PINPLCC 90ns

MX29F040QC-90

  • High-reliability design
  • Long-term stable supply
  • RoHS compliant
FLASH NOR 4MB 5V 32-PINPLCC 90ns

1. PRODUCT POSITIONING

NB29F040QC-90 is a product identity corresponding to the reference product MX29F040QC-90. This document presents the available product specifications, mechanical/package information and compatibility summary for engineering and procurement reference.

This document is a product information. Compatibility conclusions should be read together with the applicable Cross-Reference Identification (CID) rule, package/pin verification and engineering review record.

2. TECHNICAL SPECIFICATION COMPARISON (core parameters)
Parameter Macronix MX29F040QC-90 ChipNobo NB29F040QC-90 Match
Voltage - Supply 4.5V ~ 5.5V 4.5V ~ 5.5V ✓
Part Status Active Active ✓
Mounting Type Surface Mount Surface Mount ✓
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C ✓
Programmable Not Verified Not Verified ✓
Memory Interface Parallel Parallel ✓
Memory Type Non-Volatile Non-Volatile ✓
Package / Case 32-LCC (J-Lead) 32-LCC (J-Lead) ✓
Memory Size 4Mbit 4Mbit ✓
Memory Organization 512K x 8 512K x 8 ✓
Access Time 90 ns 90 ns ✓
Memory Format FLASH FLASH ✓
Write Cycle Time - Word, Page 90ns 90ns ✓
Technology FLASH - NOR FLASH - NOR ✓
Supplier Device Package 32-PLCC (11.43x14.05) 32-PLCC (11.43x14.05) ✓
3. SUPPLY & LIFECYCLE
ChipNobo Number NB29F040QC-90
Lifecycle status Active
NRND No
EOL No
PCN monitor No
Last buy date No Deadline
Alternate availability Sufficient

CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

Memory

PRODUCT DATASHEET

4. APPLICATION AREAS
AI Server GPU Server
AI Accelerator Server Data Center Switch
Laptop Notebook Smartphone
ADAS Camera System Smart Cockpit
5G Base Station Industrial Computer
Semiconductor Equipment Medical Imaging Equipment

5. ENGINEERING & COMMERCIAL NOTES

  • The ChipNobo MPN is the public product identity used by ChipNobo for this replacement reference.
  • The original manufacturer and original MPN are retained as reference identity information.
  • Product PDF data are intended for engineering, procurement and supply-continuity reference.
  • Current price, MOQ, lead time, available supply source and regional availability should be confirmed through RFQ.
  • For customer-specific qualification, PCB footprint approval, reliability requirements or design-in approval, the customer should perform the applicable validation process.

CHIPNOBO REPLACEMENT · Semiconductor Replacement Engineering & Supply Continuity Partner

Document purpose: Product Information / Replacement Reference · Generated from the product data supplied for NB29F040QC-90.

Important Notice & Disclaimer

Document ID: 【CN-DATA-NB29F040QC-90】 Revision: 1.0 Status: Released

The information provided by ChipNobo is intended solely for engineering evaluation, product selection, procurement, and supply continuity reference purposes. Product specifications, lifecycle status, availability, and other information are subject to change without notice. Customers should always verify relevant information against the latest official documentation published by the respective manufacturers.

Cross-reference and replacement recommendations are provided for engineering reference purposes only. They do not constitute a guarantee of pin-to-pin compatibility, interchangeability, or suitability for any particular application. Customers are responsible for conducting all necessary engineering reviews, testing, and qualification prior to product selection and use.

Manufacturer names, trademarks, and part numbers are referenced solely for product identification purposes. Their use does not imply any affiliation with, endorsement by, or authorization from the respective manufacturers, unless expressly stated otherwise.

To the maximum extent permitted by applicable law, ChipNobo makes no warranties, express or implied, regarding the completeness, accuracy, or suitability of the information provided and shall not be liable for any loss or damage arising from its use or reliance, except as otherwise expressly agreed in writing and subject to applicable law.