NB45DB011B-XU

GLOBAL BRAND CROSS-REFERENCE

Microchip Technology

IC FLASH 1MBIT SPI 20MHZ 14TSSOP

AT45DB011B-XU

High-reliability design
Long-term stable supply
RoHS compliant

IC FLASH 1MBIT SPI 20MHZ 14TSSOP

1. PRODUCT POSITIONING

NB45DB011B-XU is a product identity corresponding to the reference product AT45DB011B-XU. 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	Microchip Technology AT45DB011B-XU	ChipNobo NB45DB011B-XU	Match
Part Status	Active	Active	✓
Mounting Type	Surface Mount	Surface Mount	✓
Programmable	Not Verified	Not Verified	✓
Clock Frequency	20 MHz	20 MHz	✓
Memory Type	Non-Volatile	Non-Volatile	✓
Package / Case	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)	✓
Supplier Device Package	14-TSSOP	14-TSSOP	✓
Memory Size	1Mbit	1Mbit	✓
Write Cycle Time - Word, Page	15ms	15ms	✓
Memory Interface	SPI	SPI	✓
Voltage - Supply	2.7V ~ 3.6V	2.7V ~ 3.6V	✓
Operating Temperature	-40°C ~ 85°C (TC)	-40°C ~ 85°C (TC)	✓
Memory Format	FLASH	FLASH	✓
Technology	FLASH	FLASH	✓
Memory Organization	264 Bytes x 512 pages	264 Bytes x 512 pages	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	2 (1 Year)	2 (1 Year)	✓

CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

Memory

PRODUCT DATASHEET

3. SUPPLY & LIFECYCLE
ChipNobo Number	NB45DB011B-XU
Lifecycle status	Active
NRND	No
EOL	No
PCN monitor	No
Last buy date	No Deadline
Alternate availability	Sufficient

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.

Document purpose: Product Information / Replacement Reference · Generated from the product data supplied for NB45DB011B-XU.

Important Notice & Disclaimer

Document ID: 【CN-DATA-NB45DB011B-XU】 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.