DF2357F20V Equivalent & Substitute Parts

Part Overview

The DF2357F20V is a 16-bit H8S/2300 microcontroller manufactured by Renesas Electronics Corporation, featuring 128KB FLASH memory and 128-QFP packaging. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support, redesigns, and new production requirements. The part operates at 20MHz with 87 I/O pins and includes integrated peripherals such as DMA, PWM, WDT, and SCI connectivity.

Substiute Parts

DF2357F20V

Renesas Electronics CorporationIn Stock: 899DF2357F20V Datasheet

Current PartRFQ

NANO100KE3BN

Nuvoton Technology CorporationIn Stock: 846NANO100KE3BN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The NANO100KE3BN from Nuvoton Technology Corporation is identified as a substitute based on the following alignment criteria:

Matching Parameters:

• Program Memory Size: 128KB (128K x 8) FLASH
• Number of I/O: 86 (comparable to 87)
• Mounting Type: Surface Mount
• Package Form Factor: 128-pin QFP-class (128-LQFP vs. 128-BFQFP)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)
• HTSUS Classification: 8542.31.0001

Substitution Basis: The NANO100KE3BN maintains functional equivalence in memory capacity and I/O count while offering enhanced specifications in processing capability (32-bit vs. 16-bit), speed (42MHz vs. 20MHz), and supply voltage flexibility (1.8V ~ 3.6V vs. 4.5V ~ 5.5V). The 128-pin package footprint compatibility and identical FLASH memory size enable direct functional replacement in applications where the enhanced performance and lower voltage operation are acceptable.

Parameter Comparison

Engineering Selection Recommendations

DF2357F20V Selection Criteria:

• Required for legacy system maintenance where original component specifications are mandated
• Suitable for applications with strict 16-bit architecture requirements
• Appropriate when 4.5V ~ 5.5V supply voltage is the system standard
• Necessary for designs with specific H8S/2000 core processor dependencies
• Product status is obsolete; availability is limited to existing inventory

NANO100KE3BN Selection Criteria:

• Recommended for new designs and system redesigns requiring active product support
• Suitable for applications benefiting from 32-bit processing capability and 42MHz operation
• Appropriate for low-power applications utilizing 1.8V ~ 3.6V supply voltage range
• Recommended when extended operating temperature range (-40°C ~ 85°C) is required
• Product status is active; long-term availability and supply chain support are assured
• Enhanced data converter specifications (12-bit vs. 10-bit A/D; 12-bit vs. 8-bit D/A) support higher-resolution analog applications

Both parts maintain ROHS3 compliance and identical HTSUS classification, ensuring regulatory alignment for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can NANO100KE3BN directly replace DF2357F20V in existing designs? A: Direct replacement requires verification of supply voltage compatibility and core processor instruction set compatibility. The NANO100KE3BN operates at 1.8V ~ 3.6V (vs. 4.5V ~ 5.5V for DF2357F20V) and uses ARM Cortex-M0 architecture (vs. H8S/2000). Firmware recompilation and testing are necessary.

Q: Are the package dimensions compatible? A: Both parts use 128-pin QFP-class packages with 14mm width. The DF2357F20V uses 128-BFQFP (14x20mm) and NANO100KE3BN uses 128-LQFP (14x14mm). PCB footprint verification is required; the NANO100KE3BN has a shorter length dimension.

Q: What are the key memory differences? A: Both parts feature 128KB FLASH program memory. The NANO100KE3BN provides 16K x 8 RAM compared to 8K x 8 in the DF2357F20V, offering double the RAM capacity for buffer and variable storage.

Q: How do the data converters compare? A: The NANO100KE3BN provides superior analog capability with 12-bit A/D and D/A converters (vs. 10-bit A/D and 8-bit D/A in DF2357F20V), enabling higher-resolution analog signal processing.

Q: Is the DF2357F20V still available for purchase? A: The DF2357F20V is classified as obsolete. Availability is limited to existing inventory stocks. The NANO100KE3BN is an active product with assured long-term availability.

Q: What compliance certifications apply to both parts? A: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial and commercial applications.