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R5F100LEGFB#10 Equivalent & Substitute Parts
Part Overview
The R5F100LEGFB#10 is a 16-bit RL78/G13 microcontroller manufactured by Renesas Electronics Corporation. This embedded IC features 64KB FLASH program memory, 4KB EEPROM, and 4KB RAM with a 32MHz operating frequency. The device is housed in a 64-LFQFP (10x10) surface mount package and operates across a supply voltage range of 2.4V to 5.5V with an operating temperature range of -40°C to 105°C. The product maintains Active status and is ROHS3 compliant. Substitute parts are identified to address packaging availability, inventory requirements, or specific application constraints while maintaining electrical and functional equivalence.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Renesas Electronics Corporation |
| Series | RL78/G13 |
| Core Processor | RL78 |
| Core Size | 16-Bit |
| Speed | 32MHz |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 4K x 8 |
| RAM Size | 4K x 8 |
| Number of I/O | 48 |
| Voltage - Supply (Vcc/Vdd) | 2.4V ~ 5.5V |
| Data Converters | A/D 12x8/10b |
| Connectivity | CSI, I2C, LINbus, UART/USART |
| Peripherals | DMA, LVD, POR, PWM, WDT |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitute parts for the R5F100LEGFB#10 are identified based on electrical and functional parameter equivalence within the RL78/G13 microcontroller family. The primary substitutes—R5F100LEGFA#10 and R5F100LEGFA#30—maintain identical specifications across all critical parameters: 16-bit core architecture, 32MHz clock speed, 64KB FLASH memory, 4KB EEPROM, 4KB RAM, 48 I/O pins, supply voltage range of 2.4V to 5.5V, identical connectivity interfaces (CSI, I2C, LINbus, UART/USART), and equivalent peripheral sets (DMA, LVD, POR, PWM, WDT).
The key differentiator between the main part and substitutes is the package configuration. The R5F100LEGFB#10 utilizes a 64-LFQFP (10x10) package, while both substitute parts employ a 64-LQFP (12x12) package. This packaging difference represents a physical footprint variation that may affect PCB layout and board-level integration but does not alter electrical performance or functional capability. All parts share identical compliance certifications (ROHS3, REACH Unaffected), moisture sensitivity levels (MSL 3), and base product number (R5F100).
Parameter Comparison
| Parameter | R5F100LEGFB#10 | R5F100LEGFA#10 | R5F100LEGFA#30 |
|---|---|---|---|
| Manufacturer | Renesas Electronics Corporation | Renesas Electronics Corporation | Renesas Electronics Corporation |
| Series | RL78/G13 | RL78/G13 | RL78/G13 |
| Core Processor | RL78 | RL78 | RL78 |
| Core Size | 16-Bit | 16-Bit | 16-Bit |
| Speed | 32MHz | 32MHz | 32MHz |
| Program Memory Size | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) |
| Program Memory Type | FLASH | FLASH | FLASH |
| EEPROM Size | 4K x 8 | 4K x 8 | 4K x 8 |
| RAM Size | 4K x 8 | 4K x 8 | 4K x 8 |
| Number of I/O | 48 | 48 | 48 |
| Voltage - Supply (Vcc/Vdd) | 2.4V ~ 5.5V | 2.4V ~ 5.5V | 2.4V ~ 5.5V |
| Data Converters | A/D 12x8/10b | A/D 12x8/10b | A/D 12x8/10b |
| Connectivity | CSI, I2C, LINbus, UART/USART | CSI, I2C, LINbus, UART/USART | CSI, I2C, LINbus, UART/USART |
| Peripherals | DMA, LVD, POR, PWM, WDT | DMA, LVD, POR, PWM, WDT | DMA, LVD, POR, PWM, WDT |
| Oscillator Type | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Supplier Device Package | 64-LFQFP (10x10) | 64-LQFP (12x12) | 64-LQFP (12x12) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The R5F100LEGFB#10, R5F100LEGFA#10, and R5F100LEGFA#30 are electrically and functionally equivalent microcontroller units within the RL78/G13 product family. All three parts maintain Active product status and comply with ROHS3 and REACH requirements, ensuring regulatory compliance across industrial and commercial applications.
Selection between these parts is determined by package footprint requirements. The R5F100LEGFB#10 is specified for applications requiring the 64-LFQFP (10x10) package configuration, which provides a smaller physical footprint. The R5F100LEGFA#10 and R5F100LEGFA#30 employ the 64-LQFP (12x12) package, suitable for applications where the larger footprint is acceptable or preferred.
All parts share identical electrical characteristics, memory configurations, peripheral sets, and operating parameters. The choice between R5F100LEGFA#10 and R5F100LEGFA#30 is independent of electrical or functional considerations, as both employ the same package and specifications.
Frequently Asked Questions (FAQ)
Q: Are the R5F100LEGFA#10 and R5F100LEGFA#30 interchangeable with the R5F100LEGFB#10?
A: The R5F100LEGFA#10 and R5F100LEGFA#30 are electrically and functionally equivalent to the R5F100LEGFB#10. However, they employ a different package footprint (64-LQFP 12x12 versus 64-LFQFP 10x10). PCB layout modifications are required to accommodate the larger package dimensions. Electrical performance and firmware compatibility remain unchanged.
Q: What is the primary difference between the R5F100LEGFB#10 and the substitute parts?
A: The primary difference is the package configuration. The R5F100LEGFB#10 uses a 64-LFQFP (10x10) package, while R5F100LEGFA#10 and R5F100LEGFA#30 use a 64-LQFP (12x12) package. All other specifications—memory, speed, peripherals, connectivity, and operating parameters—are identical.
Q: Can firmware developed for the R5F100LEGFB#10 run on the R5F100LEGFA#10 or R5F100LEGFA#30?
A: Yes. All three parts share the same RL78 core processor, 32MHz clock speed, 64KB FLASH memory, and peripheral configuration. Firmware compatibility is maintained across all three part numbers without modification.
Q: What are the compliance certifications for these microcontroller units?
A: All three parts are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is rated at MSL 3 with a 168-hour exposure limit. These certifications apply uniformly across R5F100LEGFB#10, R5F100LEGFA#10, and R5F100LEGFA#30.
Q: Is there a functional difference between R5F100LEGFA#10 and R5F100LEGFA#30?
A: No. Both parts are functionally identical. The suffix designations (#10 and #30) do not reflect electrical or performance differences. Both employ the 64-LQFP (12x12) package and share all electrical specifications with the R5F100LEGFB#10.
Q: What connectivity interfaces are supported by these microcontrollers?
A: All three parts support CSI, I2C, LINbus, and UART/USART connectivity interfaces. Peripheral support includes DMA, LVD, POR, PWM, and WDT functionality.
Q: What is the operating temperature range for these devices?
A: The operating temperature range for all three parts is -40°C to 105°C (TA). This specification is consistent across R5F100LEGFB#10, R5F100LEGFA#10, and R5F100LEGFA#30.
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