DF2612FA20V Equivalent & Substitute Parts

Part Overview

The DF2612FA20V is a 16-bit microcontroller from Renesas Electronics Corporation, part of the H8® H8S/2600 series. This device integrates 128KB of FLASH program memory, 4KB of RAM, and operates at 20MHz with a 4.5V to 5.5V supply range. The microcontroller features CANbus and SCI connectivity, along with integrated peripherals including Power-On Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT) functionality. The DF2612FA20V is packaged in an 80-pin QFP (14x14mm) surface-mount configuration with 43 I/O pins.

The DF2612FA20V is classified as obsolete. Locating equivalent or substitute components is necessary for ongoing system support, maintenance, and new design implementations where this legacy microcontroller is specified.

Key Parameters

Parameter	DF2612FA20V Value
Core Processor	H8S/2600
Core Size	16-Bit
Speed	20MHz
Program Memory Size	128KB (128K x 8)
Program Memory Type	FLASH
RAM Size	4K x 8
Voltage - Supply (Vcc/Vdd)	4.5V ~ 5.5V
Data Converters	A/D 12x10b
Connectivity	CANbus, SCI
Peripherals	POR, PWM, WDT
Number of I/O	43
Mounting Type	Surface Mount
Package / Case	80-BQFP (14x14)
Operating Temperature	-20°C ~ 75°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the DF2612FA20V is evaluated based on the following critical parameters:

Core Architecture: 16-bit microcontroller capability
Program Memory: 128KB FLASH minimum
RAM: Minimum 4KB
Operating Voltage: Supply range compatibility with 4.5V to 5.5V operation
Connectivity: CANbus and SCI support
Peripherals: POR, PWM, and WDT functionality
Data Conversion: 12-bit A/D converter with 10 channels
Package Compatibility: Surface-mount QFP or LQFP configurations
Compliance: ROHS3 compliance and equivalent certifications

The S9S12G128F0MLH from NXP USA Inc. qualifies as a substitute based on matching or exceeding these core parameters while maintaining functional equivalence for typical application requirements.

Parameter Comparison

Parameter	DF2612FA20V	S9S12G128F0MLH	Compatibility Notes
Manufacturer	Renesas Electronics Corporation	NXP USA Inc.	Different manufacturer
Core Size	16-Bit	16-Bit	Matched
Speed	20MHz	25MHz	Substitute exceeds specification
Program Memory Size	128KB (128K x 8)	128KB (128K x 8)	Matched
Program Memory Type	FLASH	FLASH	Matched
RAM Size	4K x 8	8K x 8	Substitute exceeds specification
Voltage - Supply (Vcc/Vdd)	4.5V ~ 5.5V	3.13V ~ 5.5V	Substitute has wider lower range
Data Converters	A/D 12x10b	A/D 12x10b	Matched
Connectivity	CANbus, SCI	CANbus, IrDA, LINbus, SCI, SPI	Substitute includes additional interfaces
Peripherals	POR, PWM, WDT	LVD, POR, PWM, WDT	Substitute includes Low Voltage Detect
Number of I/O	43	54	Substitute provides additional I/O
Mounting Type	Surface Mount	Surface Mount	Matched
Package / Case	80-BQFP (14x14)	64-LQFP (10x10)	Different package; footprint change required
Operating Temperature	-20°C ~ 75°C	-40°C ~ 125°C	Substitute has extended range
Product Status	Obsolete	Active	Substitute is in active production
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Matched

Engineering Selection Recommendations

The S9S12G128F0MLH is suitable as a substitute for the DF2612FA20V based on the following factors:

Product Status: The DF2612FA20V is obsolete, while the S9S12G128F0MLH is in active production. This ensures long-term availability and supply chain continuity for new designs and ongoing system support.

Compliance Alignment: Both devices maintain ROHS3 compliance and equivalent regulatory certifications (REACH Unaffected, ECCN EAR99, HTSUS 8542.31.0001), ensuring compatibility with environmental and trade regulations.

Functional Equivalence: The S9S12G128F0MLH meets or exceeds all critical functional parameters of the DF2612FA20V, including 16-bit core architecture, 128KB FLASH program memory, 12-bit A/D conversion, and essential peripherals (POR, PWM, WDT). The substitute provides additional capabilities including extended operating temperature range (-40°C to 125°C versus -20°C to 75°C), increased RAM (8KB versus 4KB), and supplementary connectivity options (IrDA, LINbus, SPI).

Package Consideration: The S9S12G128F0MLH uses a 64-pin LQFP (10x10mm) package compared to the 80-pin BQFP (14x14mm) of the DF2612FA20V. PCB layout redesign is required to accommodate the different footprint and pin count.

Frequently Asked Questions (FAQ)

Q: Can the S9S12G128F0MLH directly replace the DF2612FA20V without PCB modifications?

A: No. The S9S12G128F0MLH uses a 64-pin LQFP package while the DF2612FA20V uses an 80-pin BQFP package. The different package geometry and pin count require PCB footprint redesign. Additionally, the pin assignments differ between the two devices, necessitating schematic and layout review.

Q: What are the key functional advantages of the S9S12G128F0MLH over the DF2612FA20V?

A: The S9S12G128F0MLH provides doubled RAM capacity (8KB versus 4KB), higher clock speed (25MHz versus 20MHz), extended operating temperature range (-40°C to 125°C versus -20°C to 75°C), and additional connectivity interfaces (IrDA, LINbus, SPI). These enhancements support more complex applications and broader environmental deployment scenarios.

Q: Are both devices compliant with the same regulatory standards?

A: Yes. Both the DF2612FA20V and S9S12G128F0MLH are ROHS3 compliant, REACH unaffected, and share identical ECCN (EAR99) and HTSUS (8542.31.0001) classifications.

Q: What is the supply voltage compatibility between these devices?

A: The DF2612FA20V operates at 4.5V to 5.5V. The S9S12G128F0MLH operates at 3.13V to 5.5V, providing a wider lower voltage range. Both devices are compatible with standard 5V supply systems; however, the S9S12G128F0MLH supports lower voltage operation if required by the application.

Q: Does the S9S12G128F0MLH support the same communication protocols as the DF2612FA20V?

A: The S9S12G128F0MLH supports all communication interfaces of the DF2612FA20V (CANbus and SCI) plus additional protocols (IrDA, LINbus, SPI). Existing CANbus and SCI implementations are compatible; additional interfaces are optional and do not affect legacy functionality.

Q: What is the moisture sensitivity level for both devices?

A: Both the DF2612FA20V and S9S12G128F0MLH have a Moisture Sensitivity Level (MSL) of 3, corresponding to 168 hours of moisture exposure tolerance. Identical handling and storage protocols apply to both devices.

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