DF2357VF13V Equivalent & Substitute Parts

Part Overview

The DF2357VF13V is a 32-bit H8S/2000 microcontroller manufactured by Renesas, featuring 128KB FLASH memory and 128 I/O pins in a 128-QFP package. This device operates at 13MHz with a supply voltage range of 3V to 5.5V and includes integrated peripherals such as DMA, PWM, WDT, and SCI/UART connectivity. The DF2357VF13V is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs or production continuity. Substitute parts must maintain core compatibility in memory architecture, I/O count, package footprint, and electrical specifications to ensure direct replacement capability.

Substiute Parts

DF2357VF13V

RenesasIn Stock: 933DF2357VF13V Datasheet

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NANO100KE3BN

Nuvoton Technology CorporationIn Stock: 846NANO100KE3BN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DF2357VF13V are identified based on the following critical parameters that determine functional equivalence:

Memory Architecture: Program memory capacity of 128KB FLASH and RAM configuration must support equivalent data storage and processing requirements.

I/O Pin Count: Minimum 86 I/O pins required to accommodate the 87-pin configuration of the original device, ensuring peripheral connectivity and signal routing compatibility.

Package Footprint: 128-pin QFP or LQFP packages with compatible pitch and dimensions to enable direct PCB layout substitution.

Core Architecture: 32-bit processor with equivalent instruction set and peripheral integration for firmware compatibility.

Electrical Specifications: Supply voltage range, operating temperature, and data converter specifications must support the application environment.

Product Status and Compliance: Active product status with current RoHS compliance preferred for new designs and long-term availability assurance.

The NANO100KE3BN qualifies as a substitute based on matching 128KB FLASH memory, 128-pin LQFP package, 32-bit core architecture, 86 I/O pins, and active product status with RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The DF2357VF13V is classified as obsolete, creating supply chain risk and limiting long-term availability. The NANO100KE3BN maintains active product status with current manufacturing support from Nuvoton Technology Corporation, ensuring sustained component availability and technical support.

Regulatory Compliance: The DF2357VF13V is RoHS non-compliant, which restricts use in applications subject to RoHS directives and environmental regulations. The NANO100KE3BN is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for commercial and industrial applications.

Memory and I/O Equivalence: Both devices feature 128KB FLASH program memory and comparable I/O pin counts (87 versus 86), supporting equivalent peripheral configurations and signal routing requirements.

Package Compatibility: The NANO100KE3BN uses a 128-LQFP (14x14) package compared to the DF2357VF13V 128-QFP (14x20) package. While both are 128-pin surface-mount packages, the footprint dimensions differ. PCB layout modification is required for physical substitution.

Performance Characteristics: The NANO100KE3BN operates at 42MHz compared to the DF2357VF13V at 13MHz, providing enhanced processing capability. The NANO100KE3BN includes 16K x 8 RAM versus 8K x 8 in the original device, offering increased data storage capacity. The NANO100KE3BN features 12-bit A/D and D/A converters compared to 10-bit and 8-bit converters in the original device, providing improved analog signal resolution.

Voltage Supply Range: The NANO100KE3BN operates at 1.8V to 3.6V, which is narrower than the DF2357VF13V range of 3V to 5.5V. Applications requiring 5V operation require voltage regulation or level shifting.

Temperature Range: The NANO100KE3BN supports -40°C to 85°C operation, extending the lower temperature limit compared to the DF2357VF13V at -20°C to 75°C, suitable for extended industrial temperature applications.

Frequently Asked Questions (FAQ)

Q: Can the NANO100KE3BN directly replace the DF2357VF13V without PCB modification?

A: Direct PCB replacement is not possible due to package footprint differences. The DF2357VF13V uses a 128-QFP (14x20) package while the NANO100KE3BN uses a 128-LQFP (14x14) package. PCB layout redesign is required to accommodate the different package dimensions and pin pitch.

Q: What are the key memory differences between these devices?

A: Both devices feature 128KB FLASH program memory. The NANO100KE3BN provides 16K x 8 RAM compared to 8K x 8 in the DF2357VF13V, doubling the available RAM capacity for data storage and stack operations.

Q: Are the I/O pin counts compatible?

A: The DF2357VF13V provides 87 I/O pins while the NANO100KE3BN provides 86 I/O pins. This single-pin difference is typically accommodated through design flexibility in peripheral allocation, though specific application requirements must be evaluated.

Q: What is the impact of the different processor architectures?

A: The DF2357VF13V uses the H8S/2000 architecture while the NANO100KE3BN uses ARM Cortex-M0. These are fundamentally different instruction set architectures requiring firmware recompilation and validation. Existing H8S/2000 firmware cannot execute on the ARM Cortex-M0 without complete porting and testing.

Q: How do the supply voltage ranges affect substitution?

A: The DF2357VF13V operates at 3V to 5.5V while the NANO100KE3BN operates at 1.8V to 3.6V. Applications requiring 5V operation cannot use the NANO100KE3BN without external voltage regulation. The overlapping range of 3V to 3.6V supports both devices in this voltage window.

Q: What are the data converter specification differences?

A: The DF2357VF13V includes 8-channel 10-bit A/D converters and 2-channel 8-bit D/A converters. The NANO100KE3BN includes 12-channel 12-bit A/D converters and 2-channel 12-bit D/A converters, providing higher resolution and additional analog input channels.

Q: Does the NANO100KE3BN support the same connectivity interfaces?

A: The DF2357VF13V supports SCI, SmartCard, and UART/USART connectivity. The NANO100KE3BN supports EBI/EMI, I2C, SPI, and UART/USART connectivity. While UART/USART is common, the specific interface implementations differ and require firmware adaptation.

Q: What is the significance of the product status difference?

A: The DF2357VF13V is obsolete with no ongoing manufacturing, creating supply chain risk and limiting technical support availability. The NANO100KE3BN is active with current production and manufacturer support, ensuring long-term component availability and access to technical resources.

Q: How does RoHS compliance affect component selection?

A: The DF2357VF13V is RoHS non-compliant, restricting use in applications subject to RoHS directives. The NANO100KE3BN is ROHS3 compliant, meeting regulatory requirements for commercial, industrial, and consumer applications in regions enforcing RoHS standards.

Q: What operating temperature range considerations apply?

A: The DF2357VF13V operates at -20°C to 75°C while the NANO100KE3BN operates at -40°C to 85°C. The NANO100KE3BN supports extended lower temperature operation, suitable for industrial and automotive applications requiring wider temperature ranges.