M0516LAN Equivalent & Substitute Parts

Part Overview

The M0516LAN is an ARM Cortex-M0 NuMicro M051 microcontroller IC featuring 32-bit single-core architecture, 50MHz operation, and 64KB FLASH memory in a 48-LQFP surface mount package. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The M0516LDN serves as the primary manufacturer-recommended substitute, offering identical core specifications with active product status.

Key Parameters

Parameter	M0516LAN
Core Processor	ARM Cortex-M0
Core Size	32-Bit Single-Core
Speed	50MHz
Program Memory Size	64KB (64K x 8)
Program Memory Type	FLASH
EEPROM Size	4K x 8
RAM Size	4K x 8
Voltage Supply (Vcc/Vdd)	2.5V ~ 5.5V
Data Converters	A/D 8x12b
Number of I/O	40
Package / Case	48-LQFP
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 85°C (TA)
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

The M0516LDN qualifies as a direct substitute for the M0516LAN based on the following critical parameters:

Core Architecture: Both parts utilize ARM Cortex-M0 32-bit single-core processors
Clock Speed: Identical 50MHz operation
Memory Configuration: Matching 64KB FLASH, 4KB EEPROM, and 4KB RAM specifications
I/O Count: Both provide 40 I/O pins
Package: Identical 48-LQFP surface mount package
Voltage Range: Matching 2.5V ~ 5.5V supply voltage specification
Data Converters: Both feature A/D 8x12-bit conversion capability
Operating Temperature: Identical -40°C ~ 85°C operating range
Compliance: Both maintain REACH Unaffected and identical ECCN/HTSUS classifications

The substitution is based on functional and electrical equivalence within the NuMicro M051 series, with the M0516LDN offering active product status compared to the obsolete M0516LAN.

Parameter Comparison

Parameter	M0516LAN	M0516LDN	Match
Core Processor	ARM Cortex-M0	ARM Cortex-M0	✓
Core Size	32-Bit Single-Core	32-Bit Single-Core	✓
Speed	50MHz	50MHz	✓
Program Memory Size	64KB (64K x 8)	64KB (64K x 8)	✓
Program Memory Type	FLASH	FLASH	✓
EEPROM Size	4K x 8	4K x 8	✓
RAM Size	4K x 8	4K x 8	✓
Voltage Supply (Vcc/Vdd)	2.5V ~ 5.5V	2.5V ~ 5.5V	✓
Data Converters	A/D 8x12b	A/D 8x12b SAR	✓
Number of I/O	40	40	✓
Package / Case	48-LQFP	48-LQFP (7x7)	✓
Mounting Type	Surface Mount	Surface Mount	✓
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	✓
Product Status	Obsolete	Active	Upgrade
REACH Status	REACH Unaffected	REACH Unaffected	✓
ECCN	3A991A2	3A991A2	✓
HTSUS	8542.31.0001	8542.31.0001	✓

Engineering Selection Recommendations

The M0516LDN is the designated manufacturer substitute for the obsolete M0516LAN. Selection of the M0516LDN is supported by:

Product Status: The M0516LDN maintains active product status with 45,100 units in stock, ensuring long-term availability and supply chain stability compared to the obsolete M0516LAN
Functional Equivalence: All critical electrical and mechanical parameters are identical, enabling direct replacement without design modification
Compliance Alignment: Both parts maintain identical REACH and export control classifications (ECCN 3A991A2, HTSUS 8542.31.0001), ensuring regulatory continuity
Connectivity Enhancement: The M0516LDN adds LINbus connectivity to the standard EBI/EMI, I2C, IrDA, SPI, and UART/USART interfaces, providing expanded protocol support without compromising existing functionality
Peripheral Consistency: Core peripherals including Brown-out Detect/Reset, POR, PWM, and WDT are maintained; the M0516LDN specifies LVR (Low Voltage Reset) versus LVD (Low Voltage Detect) in the M0516LAN

Frequently Asked Questions (FAQ)

Q: Can the M0516LDN directly replace the M0516LAN without PCB modifications?

A: Yes. Both parts share identical 48-LQFP package dimensions (7x7mm), pin count (48), and pinout configuration. No PCB layout changes are required for substitution.

Q: Are the memory specifications identical between M0516LAN and M0516LDN?

A: Yes. Both parts feature 64KB FLASH program memory, 4KB EEPROM, and 4KB RAM with identical addressing and access specifications.

Q: What is the difference between LVD and LVR mentioned in the peripheral specifications?

A: LVD (Low Voltage Detect) in the M0516LAN and LVR (Low Voltage Reset) in the M0516LDN are both low-voltage monitoring functions. The M0516LDN's LVR provides reset functionality, which is functionally compatible with designs utilizing the M0516LAN's LVD capability.

Q: Does the M0516LDN's additional LINbus connectivity affect existing designs?

A: No. The LINbus interface is an additional connectivity option. Existing designs utilizing only the standard interfaces (EBI/EMI, I2C, IrDA, SPI, UART/USART) will function identically on the M0516LDN without firmware or hardware modifications.

Q: Are the operating temperature and voltage specifications identical?

A: Yes. Both parts operate across -40°C to 85°C and accept 2.5V to 5.5V supply voltage with identical electrical characteristics.

Q: What is the MSL (Moisture Sensitivity Level) for the M0516LDN?

A: The M0516LDN maintains MSL 3 classification (168 hours maximum floor life), consistent with the M0516LAN specification.

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