M054ZBN Equivalent & Substitute Parts

Part Overview

The M054ZBN is an ARM Cortex-M0 NuMicro M051 BN microcontroller IC manufactured by Nuvoton Technology Corporation. This 32-bit single-core device operates at 50MHz with 16KB FLASH program memory and 4KB RAM, housed in a 32-WFQFN exposed pad surface mount package. The M054ZBN is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

M054ZBN

Nuvoton Technology CorporationIn Stock: 1102M054ZBN Datasheet

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M054ZDE

Nuvoton Technology CorporationIn Stock: 2144M054ZDE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the M054ZBN is determined by strict equivalence across the following critical parameters:

• Core processor architecture (ARM Cortex-M0)
• Core size and configuration (32-Bit Single-Core)
• Operating frequency (50MHz)
• Program memory capacity (16KB FLASH)
• RAM capacity (4K x 8)
• Supply voltage range (2.5V ~ 5.5V)
• I/O pin count (24)
• Package type (32-WFQFN Exposed Pad)
• Mounting configuration (Surface Mount)

The M054ZDE qualifies as an active substitute based on matching all core electrical and mechanical parameters. The M054ZDE maintains identical processor architecture, memory configuration, voltage specifications, and package form factor while offering enhanced product status (Active vs. Obsolete) and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The M054ZBN is classified as obsolete, necessitating transition to an active equivalent for new designs and ongoing procurement. The M054ZDE is the direct active substitute, offering identical core functionality and package compatibility.

Selection of M054ZDE over M054ZBN is supported by:

• Active product status with ongoing manufacturer support
• ROHS3 compliance certification
• Extended operating temperature range (-40°C to 105°C vs. -40°C to 85°C)
• Identical electrical specifications for core processor, memory, voltage, and I/O configuration
• Identical package form factor (32-WFQFN Exposed Pad)

The M054ZDE includes additional EBI/EMI connectivity and LVD peripheral compared to M054ZBN. The M054ZDE features 5 A/D channels at 12-bit resolution versus 8 channels on M054ZBN. These differences do not preclude substitution when the reduced A/D channel count meets application requirements.

Frequently Asked Questions (FAQ)

Q: Can M054ZDE directly replace M054ZBN in existing designs?

A: Yes. Both devices share identical core processor architecture, memory configuration, voltage specifications, I/O count, and package form factor. Designs using M054ZBN can transition to M054ZDE without PCB modifications. Application firmware compatibility depends on whether the design utilizes all 8 A/D channels present on M054ZBN, as M054ZDE provides 5 A/D channels.

Q: What are the key differences between M054ZBN and M054ZDE?

A: M054ZDE offers extended operating temperature range (-40°C to 105°C vs. -40°C to 85°C), active product status, ROHS3 compliance, and additional EBI/EMI connectivity. M054ZDE includes LVD peripheral not present on M054ZBN. M054ZDE provides 5 A/D channels versus 8 on M054ZBN.

Q: Is the 32-WFQFN package identical between both parts?

A: Both M054ZBN and M054ZDE use the 32-WFQFN exposed pad surface mount package. No package-level modifications are required for substitution.

Q: Why is M054ZBN classified as obsolete?

A: M054ZBN is no longer in active production. M054ZDE represents the current active equivalent within the NuMicro M051 series.

Q: Are there compliance differences between the two parts?

A: M054ZDE is ROHS3 compliant. M054ZBN compliance status is not specified in available documentation. Both parts carry identical REACH Unaffected and ECCN classifications.