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R5F101FKAFP#X0 Equivalent & Substitute Parts
Part Overview
The R5F101FKAFP#X0 is a 16-bit RL78/G13 microcontroller manufactured by Renesas Electronics Corporation, featuring 384KB FLASH memory, 24KB RAM, and 31 I/O pins in a 44-LQFP package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, production continuity, and system maintenance.
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 | 384KB (384K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 24K x 8 |
| Number of I/O | 31 |
| Voltage Supply (Vcc/Vdd) | 1.6V ~ 5.5V |
| Data Converters | A/D 10x8/10b |
| Connectivity | CSI, I2C, LINbus, UART/USART |
| Peripherals | DMA, LVD, POR, PWM, WDT |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 44-LQFP (10x10) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution of the R5F101FKAFP#X0 is determined by strict equivalence across the following critical parameters:
- Processor Architecture: RL78 core with identical instruction set compatibility
- Memory Configuration: 384KB FLASH and 24KB RAM capacity
- Peripheral Set: CSI, I2C, LINbus, UART/USART connectivity and DMA, LVD, POR, PWM, WDT peripherals
- I/O Count: 31 I/O pins
- Package Specification: 44-LQFP (10x10) surface mount form factor
- Electrical Specifications: 1.6V ~ 5.5V supply voltage range and -40°C ~ 85°C operating temperature
- Compliance: ROHS3 compliance and MSL 3 rating
The R5F101FKAFP#50 qualifies as a direct substitute, differing only in packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete), with all functional and electrical parameters remaining identical.
Parameter Comparison
| Parameter | R5F101FKAFP#X0 | R5F101FKAFP#50 | Match |
|---|---|---|---|
| Manufacturer | Renesas Electronics Corporation | Renesas Electronics Corporation | ✓ |
| Series | RL78/G13 | RL78/G13 | ✓ |
| Core Processor | RL78 | RL78 | ✓ |
| Core Size | 16-Bit | 16-Bit | ✓ |
| Speed | 32MHz | 32MHz | ✓ |
| Program Memory Size | 384KB (384K x 8) | 384KB (384K x 8) | ✓ |
| Program Memory Type | FLASH | FLASH | ✓ |
| RAM Size | 24K x 8 | 24K x 8 | ✓ |
| Number of I/O | 31 | 31 | ✓ |
| Voltage Supply (Vcc/Vdd) | 1.6V ~ 5.5V | 1.6V ~ 5.5V | ✓ |
| Data Converters | A/D 10x8/10b | A/D 10x8/10b | ✓ |
| Connectivity | CSI, I2C, LINbus, UART/USART | CSI, I2C, LINbus, UART/USART | ✓ |
| Peripherals | DMA, LVD, POR, PWM, WDT | DMA, LVD, POR, PWM, WDT | ✓ |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | ✓ |
| Package / Case | 44-LQFP (10x10) | 44-LQFP (10x10) | ✓ |
| Mounting Type | Surface Mount | Surface Mount | ✓ |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ✓ |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | ✓ |
| Product Status | Obsolete | Active | Different |
| Packaging Format | Bulk | Tape & Reel (TR) | Different |
Engineering Selection Recommendations
The R5F101FKAFP#50 is the direct functional equivalent of the R5F101FKAFP#X0. The primary distinction is product status: the R5F101FKAFP#X0 is classified as obsolete, while the R5F101FKAFP#50 maintains active status with Renesas Electronics Corporation.
For new designs or production continuity, the R5F101FKAFP#50 is the appropriate selection. Both devices maintain identical electrical specifications, peripheral configurations, and ROHS3 compliance. The packaging format difference (Tape & Reel for the #50 variant versus bulk for the #X0) reflects standard distribution practices and does not affect functional compatibility or board-level integration.
Frequently Asked Questions (FAQ)
Q: Can the R5F101FKAFP#50 be used as a direct replacement for the R5F101FKAFP#X0?
A: Yes. All functional parameters, electrical specifications, memory configurations, peripheral sets, and package dimensions are identical. The devices are pin-compatible and functionally equivalent.
Q: What is the difference between the R5F101FKAFP#X0 and R5F101FKAFP#50?
A: The primary differences are product status (Obsolete versus Active) and packaging format (Bulk versus Tape & Reel). All technical specifications remain unchanged.
Q: Are there any compatibility concerns when substituting the R5F101FKAFP#50 for the R5F101FKAFP#X0?
A: No compatibility concerns exist. Both devices use the 44-LQFP (10x10) package with identical pinout, voltage requirements (1.6V ~ 5.5V), and operating temperature range (-40°C ~ 85°C).
Q: Does the Tape & Reel packaging of the R5F101FKAFP#50 affect board assembly?
A: No. Tape & Reel packaging is a distribution format that does not affect the component itself or its performance on the PCB. Assembly processes handle both packaging formats identically.
Q: Are both devices ROHS3 compliant?
A: Yes. Both the R5F101FKAFP#X0 and R5F101FKAFP#50 are ROHS3 compliant with MSL 3 (168 Hours) moisture sensitivity rating.
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