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R5F104LEDFB#30 Equivalent & Substitute Parts
Part Overview
The R5F104LEDFB#30 is a 16-bit RL78/G14 microcontroller manufactured by Renesas Electronics Corporation, featuring 64KB FLASH memory, 5.5KB RAM, and 4KB EEPROM. This device operates at 32MHz with integrated connectivity options including CSI, I2C, LINbus, and UART/USART interfaces. The part is actively produced and ROHS3 compliant, making it suitable for embedded control applications requiring low-power operation across industrial temperature ranges.
Substitute parts are necessary when the primary part number becomes unavailable due to supply constraints, when alternative packaging formats better suit PCB layout requirements, or when inventory from different distribution channels requires cross-reference documentation.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Renesas Electronics Corporation |
| Series | RL78/G14 |
| 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 | 5.5K x 8 |
| Voltage Supply (Vcc/Vdd) | 1.6V ~ 5.5V |
| Number of I/O | 48 |
| Data Converters | A/D 12x8/10b |
| Connectivity | CSI, I2C, LINbus, UART/USART |
| Peripherals | DMA, LVD, POR, PWM, WDT |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 64-LQFP |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Product Status | Active |
Substitute Part Grouping Explanation
All substitute parts for the R5F104LEDFB#30 maintain electrical and functional equivalence based on the following criteria:
Electrical Equivalence Parameters:
- Identical RL78/G14 core processor architecture
- Identical 16-bit core size and 32MHz operating frequency
- Identical program memory capacity (64KB FLASH)
- Identical EEPROM (4K x 8) and RAM (5.5K x 8) configurations
- Identical voltage supply range (1.6V ~ 5.5V)
- Identical I/O count (48 pins)
- Identical peripheral set (DMA, LVD, POR, PWM, WDT)
- Identical connectivity interfaces (CSI, I2C, LINbus, UART/USART)
- Identical data converter specifications (A/D 12x8/10b)
Mechanical Variation Parameters:
- Package format: All parts use 64-LQFP configuration with variations in physical dimensions (10x10mm, 12x12mm, or 14x14mm)
- Packaging type: Tray packaging for substitute parts versus unspecified for main part
- Temperature grade suffix: #30 or #10 designations indicating different temperature qualification batches
Substitution is valid when the target application's PCB layout can accommodate the physical package dimensions and when the packaging format meets supply chain requirements.
Parameter Comparison
| Parameter | R5F104LEDFB#30 | R5F104LEAFA#30 | R5F104LEAFB#30 | R5F104LEAFP#10 | R5F104LEAFP#30 |
|---|---|---|---|---|---|
| Manufacturer | Renesas Electronics Corporation | Renesas Electronics Corporation | Renesas Electronics Corporation | Renesas Electronics Corporation | Renesas Electronics Corporation |
| Series | RL78/G14 | RL78/G14 | RL78/G14 | RL78/G14 | RL78/G14 |
| Core Processor | RL78 | RL78 | RL78 | RL78 | RL78 |
| Core Size | 16-Bit | 16-Bit | 16-Bit | 16-Bit | 16-Bit |
| Speed | 32MHz | 32MHz | 32MHz | 32MHz | 32MHz |
| Program Memory Size | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) |
| EEPROM Size | 4K x 8 | 4K x 8 | 4K x 8 | 4K x 8 | 4K x 8 |
| RAM Size | 5.5K x 8 | 5.5K x 8 | 5.5K x 8 | 5.5K x 8 | 5.5K x 8 |
| Voltage Supply (Vcc/Vdd) | 1.6V ~ 5.5V | 1.6V ~ 5.5V | 1.6V ~ 5.5V | 1.6V ~ 5.5V | 1.6V ~ 5.5V |
| Number of I/O | 48 | 48 | 48 | 48 | 48 |
| Data Converters | A/D 12x8/10b | A/D 12x8/10b | 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 | 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 | DMA, LVD, POR, PWM, WDT | DMA, LVD, POR, PWM, WDT |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 64-LQFP | 64-LQFP | 64-LQFP | 64-LQFP | 64-LQFP |
| Supplier Device Package | 64-LFQFP (10x10) | 64-LQFP (12x12) | 64-LFQFP (10x10) | 64-LQFP (14x14) | 64-LQFP (14x14) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| Product Status | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
All substitute parts maintain full electrical and functional compatibility with the R5F104LEDFB#30. Selection between alternatives depends on PCB layout constraints and packaging availability:
R5F104LEAFA#30 provides a 12x12mm package footprint, offering a middle-ground option between compact and standard spacing requirements.
R5F104LEAFB#30 matches the 10x10mm package dimensions of the primary part, providing direct mechanical compatibility with existing PCB layouts. This part maintains the highest inventory availability (102,196 units).
R5F104LEAFP#10 and R5F104LEAFP#30 both feature a 14x14mm package footprint, suitable for applications where larger spacing between components is available or preferred. The #10 and #30 designations indicate different temperature qualification batches with identical electrical performance.
All parts carry ROHS3 compliance and identical MSL ratings, ensuring equivalent environmental and regulatory compliance across the product family.
Frequently Asked Questions (FAQ)
Q: Can R5F104LEAFB#30 be used as a direct replacement for R5F104LEDFB#30?
A: Yes. Both parts use identical 10x10mm package dimensions and maintain full electrical equivalence across all functional parameters. The primary difference is packaging format (Tray for the substitute).
Q: What is the difference between the #10 and #30 temperature grade designations?
A: Both designations indicate qualification for the -40°C ~ 85°C operating temperature range. The suffix represents different temperature qualification batches from the manufacturer. Electrical performance is identical.
Q: Can I use a 14x14mm package part (R5F104LEAFP series) on a PCB designed for the 10x10mm package?
A: No. The 14x14mm package requires different PCB footprint dimensions. PCB layout must be redesigned to accommodate the larger package size. Verify clearance requirements with your PCB design tools before substitution.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All parts listed maintain ROHS3 compliance and identical MSL ratings of 3 (168 Hours), ensuring equivalent environmental and regulatory compliance.
Q: Which substitute part has the best inventory availability?
A: R5F104LEAFB#30 maintains the highest inventory level at 102,196 units in stock.
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