R5F100LCAFB#50 Equivalent & Substitute Parts

Part Overview

The R5F100LCAFB#50 is a 16-bit RL78/G13 microcontroller manufactured by Renesas Electronics Corporation. This embedded IC features 32KB FLASH program memory, 4KB EEPROM, and 2KB RAM with a 32MHz operating frequency. The device integrates multiple communication interfaces including CSI, I2C, LINbus, and UART/USART, along with peripheral functions such as DMA, LVD, POR, PWM, and WDT. The part is housed in a 64-LFQFP (10x10) surface mount package and operates across a supply voltage range of 1.6V to 5.5V with an operating temperature range of -40°C to 85°C. The product maintains Active status and is ROHS3 compliant. Substitute parts are identified when electrical specifications, memory configurations, core processor architecture, and functional peripherals remain identical while package dimensions or form factors differ.

Substiute Parts

R5F100LCAFB#50

Renesas Electronics CorporationIn Stock: 1695R5F100LCAFB#50 Datasheet

Current PartRFQ

R5F100LCAFA#50

Renesas Electronics CorporationIn Stock: 2057R5F100LCAFA#50 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R5F100LCAFB#50 are identified based on electrical and functional equivalence. The substitution criteria are strictly limited to the following parameters:

Core processor architecture (RL78), core size (16-Bit), operating frequency (32MHz), program memory configuration (32KB FLASH), EEPROM capacity (4K x 8), RAM capacity (2K x 8), supply voltage range (1.6V ~ 5.5V), data converter specifications (A/D 12x8/10b), I/O count (48 pins), connectivity interfaces (CSI, I2C, LINbus, UART/USART), peripheral functions (DMA, LVD, POR, PWM, WDT), oscillator type (Internal), operating temperature range (-40°C ~ 85°C), mounting type (Surface Mount), product status (Active), and compliance certifications (ROHS3, REACH Unaffected).

Variations in package dimensions and form factors do not affect functional equivalence when all electrical and operational parameters remain identical. The R5F100LCAFB#50 and its substitute maintain the same base product number (R5F100) and series designation (RL78/G13), confirming parametric compatibility.

Parameter Comparison

Engineering Selection Recommendations

The R5F100LCAFB#50 and R5F100LCAFA#50 are functionally equivalent microcontroller units with identical electrical specifications, memory configurations, and peripheral functionality. Both parts maintain Active product status and comply with ROHS3 and REACH requirements. The primary distinction between these parts is the package form factor: the R5F100LCAFB#50 utilizes a 64-LFQFP (10x10) package, while the R5F100LCAFA#50 utilizes a 64-LQFP (12x12) package. Selection between these parts depends on printed circuit board layout constraints and available board space. Both parts are suitable for applications requiring RL78/G13 architecture with 32KB FLASH memory, 4KB EEPROM, and 2KB RAM across the specified voltage and temperature operating ranges. Compliance certifications and moisture sensitivity levels are equivalent across both parts.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between R5F100LCAFB#50 and R5F100LCAFA#50?

A: The parts are electrically and functionally identical. The difference is limited to package dimensions: R5F100LCAFB#50 uses a 64-LFQFP (10x10) package, while R5F100LCAFA#50 uses a 64-LQFP (12x12) package. All electrical specifications, memory configurations, and peripheral functions remain identical.

Q: Can R5F100LCAFA#50 be used as a direct replacement for R5F100LCAFB#50?

A: Functional substitution is possible when circuit board layout accommodates the different package dimensions. The 64-LQFP (12x12) package of the R5F100LCAFA#50 requires different PCB footprint specifications compared to the 64-LFQFP (10x10) package of the R5F100LCAFB#50. Pin configuration and electrical characteristics are equivalent.

Q: Are the pin configurations identical between these two parts?

A: Both parts feature 48 I/O pins with identical connectivity interfaces (CSI, I2C, LINbus, UART/USART) and peripheral functions (DMA, LVD, POR, PWM, WDT). Pin count and signal assignments are equivalent; however, physical package dimensions differ.

Q: What compliance certifications apply to both parts?

A: Both R5F100LCAFB#50 and R5F100LCAFA#50 are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is rated at MSL 3 (168 Hours) for both parts.

Q: Do both parts operate across the same voltage and temperature ranges?

A: Yes. Both parts operate with supply voltage from 1.6V to 5.5V and across an operating temperature range of -40°C to 85°C (TA).

Q: What memory specifications are shared between these parts?

A: Both parts feature 32KB FLASH program memory (32K x 8), 4KB EEPROM (4K x 8), and 2KB RAM (2K x 8). Memory organization and capacity are identical.

Q: Are there any differences in peripheral functionality?

A: No. Both parts include identical peripheral functions: DMA, LVD, POR, PWM, and WDT. Data converter specifications (A/D 12x8/10b) and oscillator type (Internal) are also identical.