R5F104MLAFB#10 Equivalent & Substitute Parts

Part Overview

The R5F104MLAFB#10 is a 16-bit embedded microcontroller from Renesas Electronics Corporation, part of the RL78/G14 series. This device integrates 512KB of FLASH program memory, 48KB of RAM, and 8KB of EEPROM, operating at 32MHz with a supply voltage range of 1.6V to 5.5V. The IC is housed in an 80-LFQFP (12x12mm) surface mount package and is classified as Active product status with ROHS3 compliance. Substitute parts are necessary when specific package configurations, inventory availability, or design layout requirements necessitate alternative mechanical or electrical variants within the same functional family.

Substiute Parts

R5F104MLAFB#10

Renesas Electronics CorporationIn Stock: 1134R5F104MLAFB#10 Datasheet

Current PartRFQ

R5F104MLAFA#30

Renesas Electronics CorporationIn Stock: 904R5F104MLAFA#30 Datasheet

Parametric EquivalentRFQ

R5F104MLAFB#30

Renesas Electronics CorporationIn Stock: 2506R5F104MLAFB#30 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F104MLAFB#10 is determined by electrical and mechanical parameter equivalence within the RL78/G14 microcontroller family. The following criteria establish valid substitution:

Electrical Equivalence Requirements:

• Identical core processor (RL78)
• Identical core size (16-Bit)
• Identical operating speed (32MHz)
• Identical program memory capacity (512KB FLASH)
• Identical RAM capacity (48K x 8)
• Identical EEPROM capacity (8K x 8)
• Identical voltage supply range (1.6V ~ 5.5V)
• Identical I/O count (64)
• Identical connectivity interfaces (CSI, I2C, LINbus, UART/USART)
• Identical peripheral set (DMA, LVD, POR, PWM, WDT)
• Identical data converter configuration (A/D 17x8/10b; D/A 2x8b)
• Identical operating temperature range (-40°C ~ 85°C)

Mechanical Equivalence Requirements:

• Surface mount mounting type
• 80-pin LQFP package family
• Identical RoHS and REACH compliance status
• Identical MSL rating (3)

Substitute parts may differ in package footprint dimensions (12x12mm versus 14x14mm) while maintaining the 80-LQFP pin configuration. These dimensional variations require PCB layout adjustment but do not affect electrical functionality or pin assignment.

Parameter Comparison

Engineering Selection Recommendations

All three parts—R5F104MLAFB#10, R5F104MLAFA#30, and R5F104MLAFB#30—are electrically equivalent RL78/G14 microcontrollers with identical functional specifications. Selection between these parts is determined by package footprint requirements and inventory availability.

R5F104MLAFB#10 is suitable for designs requiring an 80-LFQFP package with 12x12mm footprint dimensions. This part maintains Active product status and full ROHS3 compliance.

R5F104MLAFA#30 provides an alternative with an 80-LQFP package featuring 14x14mm footprint dimensions. This variant is appropriate for applications where the larger package footprint accommodates PCB layout constraints. Active product status and ROHS3 compliance are maintained.

R5F104MLAFB#30 offers the same 12x12mm footprint as the primary part (R5F104MLAFB#10) with identical electrical characteristics. This variant provides increased inventory availability (2493 units in stock) compared to the primary part (1100 units in stock).

Selection should prioritize design compatibility with existing PCB layouts and package footprint requirements. All three parts carry identical compliance certifications (ROHS3, REACH Unaffected) and moisture sensitivity ratings (MSL 3).

Frequently Asked Questions (FAQ)

Q: Are R5F104MLAFB#10, R5F104MLAFA#30, and R5F104MLAFB#30 pin-compatible?

A: All three parts use the 80-pin LQFP package family with identical pin assignments. Pin compatibility is maintained across all variants. Package footprint dimensions differ (12x12mm versus 14x14mm), requiring PCB layout verification.

Q: What is the difference between the 12x12mm and 14x14mm package footprints?

A: Both packages maintain the 80-pin LQFP configuration with identical electrical characteristics. The dimensional difference affects PCB land pattern design and component placement. The 14x14mm variant (R5F104MLAFA#30) requires a larger footprint area on the printed circuit board.

Q: Can I substitute R5F104MLAFB#10 with R5F104MLAFA#30 in an existing design?

A: Electrical substitution is valid; however, the 14x14mm footprint of R5F104MLAFA#30 differs from the 12x12mm footprint of R5F104MLAFB#10. PCB layout modification is required to accommodate the larger package dimensions.

Q: Are all three parts RoHS compliant?

A: Yes. R5F104MLAFB#10, R5F104MLAFA#30, and R5F104MLAFB#30 are all ROHS3 compliant and REACH unaffected.

Q: What is the moisture sensitivity level for these microcontrollers?

A: All three parts carry MSL 3 rating with a 168-hour floor life specification. Standard moisture control procedures apply during storage and handling.

Q: Do these parts have identical operating temperature ranges?

A: Yes. All three variants operate across the identical temperature range of -40°C to 85°C (TA).

Q: Are there differences in memory configuration between the three parts?

A: No. All three parts feature identical memory specifications: 512KB FLASH program memory, 48KB RAM, and 8KB EEPROM.

Q: Which part should I select for new designs?

A: Selection depends on PCB footprint requirements and inventory availability. R5F104MLAFB#30 offers the same 12x12mm footprint as R5F104MLAFB#10 with higher inventory availability (2493 units). R5F104MLAFA#30 is suitable when the 14x14mm footprint accommodates design constraints.