M058ZBN Equivalent & Substitute Parts

Part Overview

The M058ZBN is an ARM Cortex-M0 NuMicro M051 BN microcontroller IC featuring 32-bit single-core architecture, 50MHz operation, and 32KB FLASH memory in a 32-WFQFN exposed pad package. This part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity. The M058ZBN remains functionally viable but faces supply constraints due to its discontinued status.

Substiute Parts

M058ZBN

Nuvoton Technology CorporationIn Stock: 1588M058ZBN Datasheet

Current PartRFQ

M058ZDE

Nuvoton Technology CorporationIn Stock: 1096M058ZDE Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

The M058ZDE qualifies as a direct substitute based on the following alignment criteria:

Core Electrical Parameters (Identical):

• ARM Cortex-M0 processor architecture
• 32-bit single-core configuration
• 50MHz clock speed
• 32KB FLASH program memory
• 4K x 8 RAM capacity
• 2.5V ~ 5.5V supply voltage range
• 24 I/O pins
• Surface mount technology with 32-WFQFN exposed pad package

Mechanical Compatibility:

• Identical package footprint (32-WFQFN exposed pad)
• Same mounting type and pin configuration

Functional Differences (Non-Critical for Substitution):

• M058ZDE includes EBI/EMI connectivity (additional feature)
• M058ZDE includes LVD peripheral (additional feature)
• M058ZDE features A/D 5x12b versus M058ZBN A/D 8x12b (reduced ADC channels)
• M058ZDE operating temperature range: -40°C ~ 105°C (extended upper limit)

Status Advantage:

• M058ZDE is active product status, ensuring ongoing availability and supply chain support

Parameter Comparison

Engineering Selection Recommendations

M058ZDE Selection Criteria:

The M058ZDE is the appropriate substitute for M058ZBN applications based on product lifecycle status. As an active product, M058ZDE ensures long-term availability, supply chain stability, and manufacturer support. Both parts maintain ROHS3 compliance and identical core electrical specifications, enabling direct functional replacement in existing designs.

Selection of M058ZDE is recommended for new designs and ongoing production where M058ZBN supply becomes constrained. The extended operating temperature range (-40°C ~ 105°C) of M058ZDE provides additional thermal margin for applications requiring elevated temperature operation.

Design review is necessary only if the application requires all eight ADC channels provided by M058ZBN, as M058ZDE provides five ADC channels. Applications utilizing five or fewer ADC inputs experience no functional impact.

Frequently Asked Questions (FAQ)

Q: Can M058ZDE directly replace M058ZBN in existing PCB designs?

A: Yes. Both parts share identical package geometry (32-WFQFN exposed pad), pin configuration (24 I/O), and core electrical specifications. No PCB layout modifications are required.

Q: What is the primary reason to substitute M058ZBN with M058ZDE?

A: M058ZBN is classified as obsolete, creating long-term supply risk. M058ZDE is an active product with ongoing manufacturer support and availability.

Q: Are there differences in firmware compatibility?

A: Both parts use the ARM Cortex-M0 architecture and share identical memory configurations (32KB FLASH, 4KB RAM). Firmware compatibility depends on application-specific peripheral usage. Applications using five or fewer ADC inputs experience no compatibility issues.

Q: Does M058ZDE support the same voltage supply range?

A: Yes. Both parts operate across 2.5V ~ 5.5V supply voltage range.

Q: What is the impact of the reduced ADC channel count in M058ZDE?

A: M058ZDE provides five ADC channels versus eight in M058ZBN. Applications requiring more than five simultaneous analog inputs must evaluate alternative solutions or design modifications.

Q: Are both parts RoHS compliant?

A: Yes. Both M058ZBN and M058ZDE are ROHS3 compliant.

Q: Does M058ZDE offer any advantages over M058ZBN?

A: M058ZDE extends the operating temperature range to -40°C ~ 105°C (versus -40°C ~ 85°C for M058ZBN) and includes additional connectivity options (EBI/EMI) and peripherals (LVD). M058ZDE is an active product with ongoing support.