UPD78F0495GC-GAD-AX Equivalent & Substitute Parts

Part Overview

The UPD78F0495GC-GAD-AX is an 8-bit microcontroller from Renesas Electronics Corporation's 78K0/Lx3 series, designed for embedded applications requiring low-power operation and integrated peripheral support. This device features 60KB of FLASH program memory, 2KB of RAM, and operates across a wide supply voltage range of 1.8V to 5.5V. The part is currently in active production status with ROHS3 compliance and is available in high inventory quantities. Alternative components may be required due to design evolution, end-of-life considerations, or application-specific performance requirements.

Substiute Parts

UPD78F0495GC-GAD-AX

Renesas Electronics CorporationIn Stock: 1255UPD78F0495GC-GAD-AX Datasheet

Current PartRFQ

R5F51303ADFN#30

Renesas Electronics CorporationIn Stock: 1634R5F51303ADFN#30 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The R5F51303ADFN#30 is identified as a substitute component based on the following alignment criteria:

Common Electrical Parameters:

• Manufacturer: Renesas Electronics Corporation (same manufacturer ecosystem)
• Voltage Supply Range: 1.8V ~ 5.5V (identical operating voltage)
• Operating Temperature: -40°C ~ 85°C (identical temperature range)
• RoHS Status: ROHS3 Compliant (equivalent compliance level)
• Moisture Sensitivity Level: 3 (168 Hours) (identical MSL rating)

Package Compatibility:

• Both devices utilize 80-pin LQFP packaging, enabling mechanical interchangeability in PCB layouts

Functional Differences: The R5F51303ADFN#30 represents an architectural upgrade within the Renesas embedded microcontroller portfolio, transitioning from the 8-bit 78K/0 core to a 32-bit RX core architecture with enhanced processing capability (32MHz vs. 10MHz), increased program memory (64KB vs. 60KB), and expanded peripheral integration including DMA and capacitive touch support.

Parameter Comparison

Engineering Selection Recommendations

Both the UPD78F0495GC-GAD-AX and R5F51303ADFN#30 maintain active production status with equivalent compliance certifications (ROHS3, identical MSL ratings, and REACH unaffected status). Selection between these components should be based on application-specific requirements:

The UPD78F0495GC-GAD-AX is appropriate for applications requiring 8-bit processing architecture with established firmware compatibility within the 78K0/Lx3 ecosystem.

The R5F51303ADFN#30 is suitable for applications where 32-bit processing capability, higher clock frequency, expanded memory resources, and enhanced peripheral integration provide functional advantages. This substitution requires firmware porting from the 78K/0 instruction set to the RX instruction set architecture.

Both devices support identical supply voltage ranges and operating temperature specifications, ensuring compatibility with existing power distribution and thermal management designs.

Frequently Asked Questions (FAQ)

Q: Can the R5F51303ADFN#30 be used as a direct pin-for-pin replacement for the UPD78F0495GC-GAD-AX?

A: Both devices utilize 80-pin LQFP packaging with identical physical dimensions (12x12mm), enabling mechanical interchangeability on the PCB. However, firmware compatibility requires porting from the 78K/0 instruction set to the RX instruction set. Pin function assignments may differ and must be verified against device datasheets.

Q: What are the key electrical compatibility factors between these devices?

A: Both devices operate across the identical supply voltage range (1.8V ~ 5.5V), support the same operating temperature range (-40°C ~ 85°C), and maintain equivalent moisture sensitivity levels (MSL 3, 168 hours). These parameters ensure compatibility with existing power supply and thermal management infrastructure.

Q: How do the memory specifications differ between these microcontrollers?

A: The UPD78F0495GC-GAD-AX provides 60KB of FLASH program memory and 2KB of RAM. The R5F51303ADFN#30 offers 64KB of FLASH program memory, 10KB of RAM, and includes 8KB of EEPROM. The increased memory capacity in the substitute part supports more complex firmware implementations.

Q: Are there connectivity differences between these devices?

A: The UPD78F0495GC-GAD-AX supports 3-Wire SIO, LINbus, and UART/USART connectivity. The R5F51303ADFN#30 supports I2C, LINbus, SCI, and SPI connectivity. Both devices include LINbus support, but application-specific communication requirements must be evaluated.

Q: What compliance certifications apply to both devices?

A: Both the UPD78F0495GC-GAD-AX and R5F51303ADFN#30 are ROHS3 compliant, REACH unaffected, and maintain identical moisture sensitivity levels (MSL 3, 168 hours). Both devices are currently in active production status.