Renesas RL78/G13 R5F101LCDFB#X0 Equivalent & Substitute Parts

Part Overview

The Renesas R5F101LCDFB#X0 is a 16-bit RL78/G13 microcontroller featuring 32KB Flash memory, 2KB RAM, and 48 I/O pins in a 64-LQFP package. This device integrates multiple communication interfaces (CSI, I2C, LINbus, UART/USART), analog-to-digital conversion (12x8/10-bit), and peripheral functions including DMA, PWM, and watchdog timer.

The original part number R5F101LCDFB#X0 carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this microcontroller specification.

Substiute Parts

R5F101LCDFB#X0

Renesas Electronics CorporationIn Stock: 795R5F101LCDFB#X0 Datasheet

Current PartRFQ

R5F101LCDFB#50

Renesas Electronics CorporationIn Stock: 963R5F101LCDFB#50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F101LCDFB#X0 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Core Architecture & Performance: RL78 processor core, 16-bit architecture, 32MHz clock speed

Memory Configuration: 32KB Flash program memory, 2KB RAM, matching memory organization (32K x 8 and 2K x 8)

I/O & Connectivity: 48 I/O pins, identical communication interfaces (CSI, I2C, LINbus, UART/USART)

Analog Capabilities: A/D converter configuration (12x8/10-bit)

Peripheral Set: DMA, LVD, POR, PWM, WDT functionality

Electrical Specifications: Supply voltage range 1.6V ~ 5.5V, operating temperature -40°C ~ 85°C

Package & Mounting: 64-LQFP (10x10) surface mount package

Compliance: ROHS3 compliance, MSL 3 rating

Parameter Comparison

Engineering Selection Recommendations

The R5F101LCDFB#50 is a direct functional equivalent to the R5F101LCDFB#X0. Both parts share identical electrical specifications, memory configuration, I/O count, peripheral set, and package format. The primary distinction is product lifecycle status: the original part carries obsolete designation while the substitute maintains active status.

Selection of R5F101LCDFB#50 is appropriate for new designs and production continuity where the RL78/G13 architecture and 32KB Flash configuration are required. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent environmental performance and handling requirements.

Frequently Asked Questions (FAQ)

Q: Are R5F101LCDFB#X0 and R5F101LCDFB#50 pin-compatible?

A: Yes. Both devices use the 64-LQFP (10x10) package with identical pin assignments, I/O configuration (48 pins), and electrical characteristics. Direct PCB substitution is supported without layout modification.

Q: What is the significance of the part number suffix (#X0 vs #50)?

A: The suffix designates the manufacturing batch or packaging variant. The electrical and functional specifications remain identical between these variants. The #50 variant maintains active product status while #X0 is obsolete.

Q: Can I use R5F101LCDFB#50 in existing designs originally specified for R5F101LCDFB#X0?

A: Yes. Identical core processor, memory, I/O, connectivity, and peripheral specifications ensure functional compatibility. No firmware or hardware modifications are required.

Q: Are there any differences in compliance or certifications?

A: Both parts are ROHS3 compliant with MSL 3 rating (168 hours). ECCN and HTSUS classifications are identical, supporting equivalent regulatory and export compliance.

Q: What is the supply availability difference?

A: R5F101LCDFB#X0 carries obsolete status with limited availability. R5F101LCDFB#50 maintains active status with current production and improved supply chain availability.

Q: Are there any thermal or operating condition differences?

A: No. Both parts operate across the identical temperature range (-40°C ~ 85°C) and voltage supply range (1.6V ~ 5.5V), with matching thermal and electrical performance characteristics.