Equivalent & Substitute Parts for R7F100GLF3CFB#HA0

Part Overview

The R7F100GLF3CFB#HA0 is a 16-bit microcontroller from Renesas Electronics Corporation's RL78/G23 series, designed for embedded applications requiring integrated flash memory, multiple communication interfaces, and analog conversion capabilities. This device features 96KB of flash program memory, 12KB of RAM, and 8KB of EEPROM, operating across a wide supply voltage range of 1.8V to 5.5V. The part is currently in active production status with full RoHS3 compliance and is available in surface mount packaging. Identifying equivalent substitute parts becomes necessary when addressing supply chain constraints, inventory availability, or specific packaging requirements while maintaining functional and electrical compatibility.

Key Parameters

Parameter	Value
Core Processor	RL78
Core Size	16-Bit
Speed	32MHz
Program Memory Size	96KB (96K x 8)
Program Memory Type	FLASH
RAM Size	12K x 8
EEPROM Size	8K x 8
Voltage Supply (Vcc/Vdd)	1.8V ~ 5.5V
Number of I/O	54
Connectivity	CSI, I2C, LINbus, SPI, UART/USART
Data Converters	A/D 12x10b, 8x12b; D/A 2x8b
Operating Temperature	-40°C ~ 105°C (TA)
Package Type	64-LQFP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the R7F100GLF3CFB#HA0 with the R7F100GLF3CFA#HA0 is based on strict electrical and functional equivalence across all critical parameters. Both devices share identical core specifications including the RL78 processor architecture, 16-bit core size, 32MHz operating frequency, 96KB flash memory capacity, 12KB RAM, 8KB EEPROM, and full peripheral feature set. The connectivity interfaces (CSI, I2C, LINbus, SPI, UART/USART) and data conversion capabilities (A/D and D/A converters) are identical between both parts. Supply voltage range, I/O count, operating temperature range, and compliance certifications remain unchanged.

The primary distinction between these parts lies in the physical package dimensions: the R7F100GLF3CFB#HA0 utilizes a 64-LFQFP package with 10x10mm footprint, while the R7F100GLF3CFA#HA0 employs a 64-LQFP package with 12x12mm footprint. Both packages are 64-pin LQFP variants with identical pin assignments and electrical characteristics. This dimensional difference affects PCB layout and board space requirements but does not impact functional compatibility or electrical performance.

Parameter Comparison

Parameter	R7F100GLF3CFB#HA0	R7F100GLF3CFA#HA0	Equivalence
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Identical
Series	RL78/G23	RL78/G23	Identical
Core Processor	RL78	RL78	Identical
Core Size	16-Bit	16-Bit	Identical
Speed	32MHz	32MHz	Identical
Program Memory Size	96KB (96K x 8)	96KB (96K x 8)	Identical
Program Memory Type	FLASH	FLASH	Identical
RAM Size	12K x 8	12K x 8	Identical
EEPROM Size	8K x 8	8K x 8	Identical
Voltage Supply (Vcc/Vdd)	1.8V ~ 5.5V	1.8V ~ 5.5V	Identical
Number of I/O	54	54	Identical
Connectivity	CSI, I2C, LINbus, SPI, UART/USART	CSI, I2C, LINbus, SPI, UART/USART	Identical
Peripherals	Capacitive Touch, LVD, POR, PWM, WDT	Capacitive Touch, LVD, POR, PWM, WDT	Identical
Data Converters	A/D 12x10b, 8x12b; D/A 2x8b	A/D 12x10b, 8x12b; D/A 2x8b	Identical
Oscillator Type	Internal	Internal	Identical
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 105°C (TA)	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	64-LQFP (10x10mm)	64-LQFP (12x12mm)	Different Footprint
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
MSL Rating	3 (168 Hours)	3 (168 Hours)	Identical
ECCN	3A991A2	3A991A2	Identical
HTSUS	8542.31.0001	8542.31.0001	Identical
Product Status	Active	Active	Identical

Engineering Selection Recommendations

Both the R7F100GLF3CFB#HA0 and R7F100GLF3CFA#HA0 are active production devices from Renesas Electronics Corporation with full RoHS3 compliance and identical regulatory classifications (ECCN 3A991A2, HTSUS 8542.31.0001). Selection between these parts should be determined by PCB layout constraints and available board space.

The R7F100GLF3CFB#HA0 with its 10x10mm footprint is suitable for space-constrained applications requiring minimal component area. The R7F100GLF3CFA#HA0 with its 12x12mm footprint provides a larger package option that may offer improved thermal characteristics and easier handling during assembly processes.

Pin assignments and electrical characteristics are identical between both variants, ensuring functional interchangeability at the circuit level. Design migration from one package variant to the other requires only PCB layout modification without changes to schematic design, firmware, or electrical specifications.

Frequently Asked Questions (FAQ)

Q: Are the R7F100GLF3CFB#HA0 and R7F100GLF3CFA#HA0 pin-compatible?

A: Yes. Both devices use 64-pin LQFP packages with identical pin assignments and electrical characteristics. The difference is limited to physical package dimensions (10x10mm versus 12x12mm).

Q: Can I substitute the R7F100GLF3CFA#HA0 for the R7F100GLF3CFB#HA0 without firmware changes?

A: Yes. Both microcontrollers share identical processor architecture, memory configuration, peripheral features, and operating specifications. No firmware modifications are required for functional equivalence.

Q: What is the primary consideration when choosing between these two package variants?

A: PCB layout and available board space are the primary considerations. The 10x10mm package (R7F100GLF3CFB#HA0) requires less area, while the 12x12mm package (R7F100GLF3CFA#HA0) provides a larger footprint. Both offer identical electrical performance.

Q: Do both parts have the same supply voltage requirements?

A: Yes. Both the R7F100GLF3CFB#HA0 and R7F100GLF3CFA#HA0 operate across the identical supply voltage range of 1.8V to 5.5V and share the same operating temperature range of -40°C to 105°C.

Q: Are there any differences in memory capacity between these parts?

A: No. Both devices contain 96KB of flash program memory, 12KB of RAM, and 8KB of EEPROM. Memory specifications are identical.

Q: What connectivity interfaces are available on both parts?

A: Both the R7F100GLF3CFB#HA0 and R7F100GLF3CFA#HA0 include CSI, I2C, LINbus, SPI, and UART/USART connectivity interfaces with identical peripheral support including capacitive touch sensing, low voltage detection, power-on reset, PWM, and watchdog timer functions.

Q: Are both parts RoHS compliant?

A: Yes. Both the R7F100GLF3CFB#HA0 and R7F100GLF3CFA#HA0 are ROHS3 compliant with MSL rating 3 (168 hours) and identical regulatory classifications.

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