R5F2134CKDFP#V0 Equivalent & Substitute Parts

Part Overview

The R5F2134CKDFP#V0 is a 16-bit microcontroller from Renesas Electronics Corporation's R8C/3x/34K series, featuring 128KB FLASH memory and operating at 20MHz. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, redesigns, and production continuity. The part integrates multiple communication interfaces including I2C, LINbus, SIO, SSU, UART/USART, and USB connectivity, along with integrated peripherals such as PWM, watchdog timer, and voltage detection.

Substiute Parts

R5F2134CKDFP#V0

Renesas Electronics CorporationIn Stock: 1103R5F2134CKDFP#V0 Datasheet

Current PartRFQ

R5F51305ADFL#30

Renesas Electronics CorporationIn Stock: 15442R5F51305ADFL#30 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F2134CKDFP#V0 is determined by the following critical parameters:

Mechanical Compatibility: Both the main part and substitute must share identical package type (48-LQFP 7x7) and mounting method (Surface Mount) to ensure PCB-level compatibility without layout modifications.

Electrical Compatibility: The substitute must operate within the same voltage supply range (1.8V ~ 5.5V) and maintain compatible operating temperature specifications (-40°C ~ 85°C).

Memory Architecture: Program memory size (128KB FLASH) and total addressable memory capacity must be equivalent or greater to support existing firmware without modification.

Pin Count and I/O Configuration: The 48-pin package with 36 I/O pins establishes the baseline for signal routing and peripheral connectivity.

Regulatory Compliance: Both parts must maintain ROHS3 compliance and REACH unaffected status for supply chain and environmental requirements.

The R5F51305ADFL#30 qualifies as a substitute based on these parameters: identical package geometry, matching voltage supply range, equivalent FLASH memory capacity, compatible pin count, and matching regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

The R5F51305ADFL#30 is available as an active product from Renesas Electronics Corporation, providing supply chain continuity for applications currently using the obsolete R5F2134CKDFP#V0. Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production transitions.

The substitute offers enhanced performance characteristics: 32-bit architecture versus 16-bit, increased clock speed (32MHz versus 20MHz), and expanded memory resources (16KB RAM and 8KB EEPROM versus 10KB RAM and 4KB EEPROM). These improvements provide headroom for firmware optimization and feature expansion without architectural constraints.

Identical package geometry and pin count (48-LQFP with 36 usable I/O) enable direct PCB-level substitution. Matching voltage supply range (1.8V ~ 5.5V) and operating temperature specifications (-40°C ~ 85°C) ensure compatibility with existing power distribution and thermal management designs.

The moisture sensitivity level difference (MSL 1 versus MSL 3) reflects standard industry variations and does not impact substitution feasibility for standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can the R5F51305ADFL#30 be used as a direct replacement without PCB modifications?

A: Yes. Both devices use identical 48-LQFP (7x7) packaging with matching pin counts and I/O configuration. No PCB layout changes are required for mechanical and electrical compatibility.

Q: Are there firmware compatibility considerations between the 16-bit R8C and 32-bit RX architectures?

A: The instruction set architectures differ between the R8C and RX cores. Firmware requires recompilation and validation for the RX130 platform. Renesas provides development tools and migration documentation for this transition.

Q: Does the higher clock speed (32MHz versus 20MHz) affect power consumption?

A: The RX130 operates at higher frequency but incorporates more efficient power management. Actual power consumption depends on application workload and peripheral utilization. Detailed power analysis requires review of device datasheets and application-specific operating profiles.

Q: What is the significance of the different moisture sensitivity levels?

A: MSL 1 (unlimited) versus MSL 3 (168 hours) reflects standard industry classifications. For standard manufacturing, storage, and handling conditions, this difference does not impact substitution feasibility. Extended storage or high-humidity environments may require specific precautions for MSL 3 devices.

Q: Is the R5F51305ADFL#30 available in the same packaging options?

A: The substitute is supplied in Tray packaging, while the original part specification does not specify packaging format. Both use identical 48-LQFP (7x7) component packaging suitable for automated assembly.

Q: What connectivity interfaces are preserved in the substitute?

A: The R5F51305ADFL#30 supports I2C, LINbus, SCI, and SPI. The original R5F2134CKDFP#V0 includes I2C, LINbus, SIO, SSU, UART/USART, and USB. Interface differences require application-level assessment for compatibility with existing communication protocols.