R5F11TLGDFB#15 Equivalent & Substitute Parts

Part Overview

The R5F11TLGDFB#15 is a 16-bit embedded microcontroller from Renesas Electronics Corporation, part of the RL78/I1C series. This device integrates 128KB FLASH program memory, 8KB RAM, and 2KB EEPROM with a 24MHz core processor in a 64-LFQFP surface mount package. The microcontroller features multiple connectivity options including CSI, I2C, IrDA, LINbus, and UART/USART, along with integrated peripherals such as LCD driver, low voltage detection, power-on reset, PWM, and watchdog timer functionality.

The R5F11TLGDFB#15 maintains Active product status and is suitable for new designs. Equivalent and substitute parts are identified based on matching electrical specifications, memory configurations, package types, and compliance certifications. Alternative part numbers may be required due to inventory availability, regional sourcing constraints, or specific packaging tape reel designations.

Substiute Parts

R5F11TLGDFB#15

Renesas Electronics CorporationIn Stock: 1217R5F11TLGDFB#15 Datasheet

Current PartRFQ

R5F10NLGDFB#35

Renesas Electronics CorporationIn Stock: 1320R5F10NLGDFB#35 Datasheet

Parametric EquivalentRFQ

R5F11TLGDFB#30

Renesas Electronics CorporationIn Stock: 1543R5F11TLGDFB#30 Datasheet

Parametric EquivalentRFQ

R5F11TLGDFB#35

Renesas Electronics CorporationIn Stock: 1392R5F11TLGDFB#35 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R5F11TLGDFB#15 are identified based on electrical and mechanical parameter equivalence within the RL78/I1C microcontroller family. The substitution logic is based on the following critical parameters:

Core Electrical Specifications:

• 16-bit core processor architecture (RL78)
• 24MHz operating frequency
• 128KB FLASH program memory capacity
• 8KB RAM and 2KB EEPROM configuration
• 1.7V to 5.5V supply voltage range
• Identical peripheral set: LCD, LVD, POR, PWM, WDT
• Matching connectivity interfaces: CSI, I2C, IrDA, LINbus, UART/USART
• 27 I/O pins
• A/D converter: 4x10/24b Sigma-Delta

Mechanical and Package Specifications:

• 64-LFQFP (10x10) package footprint
• Surface mount mounting type
• Tray packaging format
• Operating temperature range: -40°C to 85°C

Compliance and Environmental:

• ROHS3 compliance
• REACH Unaffected status
• Moisture Sensitivity Level 3 (168 Hours)

Substitute parts differ only in base product number designation (R5F11 versus R5F10) or tape reel suffix (#15, #30, #35), which represent manufacturing lot codes or regional distribution variants. These designations do not affect electrical functionality or pin compatibility.

Parameter Comparison

Engineering Selection Recommendations

R5F11TLGDFB#15 (Primary Part)

The R5F11TLGDFB#15 is designated as Active product status and is suitable for new design implementations. This part number is recommended for applications requiring long-term availability and ongoing manufacturer support. The part maintains full ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements.

R5F11TLGDFB#35 (Preferred Substitute)

The R5F11TLGDFB#35 is electrically and mechanically identical to the primary part and carries Active product status. This part number is suitable for new designs and provides equivalent long-term availability. The suffix #35 represents a manufacturing or distribution variant with no impact on functional performance or pin compatibility. ROHS3 compliance and REACH Unaffected status are maintained.

R5F10NLGDFB#35 (Alternative Substitute)

The R5F10NLGDFB#35 provides complete electrical and mechanical equivalence with identical memory configuration, peripheral set, and package specifications. This part carries Active product status. The base product number change from R5F11 to R5F10 represents a manufacturing designation variant. ROHS3 compliance is maintained; however, ECCN classification differs (EAR99 versus 3A991A2). This part is suitable for applications where ECCN classification does not impose restrictions.

R5F11TLGDFB#30 (Not Recommended for New Designs)

The R5F11TLGDFB#30 is designated as Not For New Designs and should not be selected for new product development. While electrically and mechanically equivalent, this product status indicates limited future availability and manufacturer support. This part number is suitable only for sustaining production of existing designs or replacement inventory purposes.

Frequently Asked Questions (FAQ)

Q: Are all substitute parts pin-compatible with the R5F11TLGDFB#15?

A: Yes. All substitute parts listed use the identical 64-LFQFP (10x10) package with 27 I/O pins. Pin assignments, signal definitions, and electrical characteristics are identical across all equivalent parts.

Q: What is the difference between R5F11TLGDFB#15, R5F11TLGDFB#30, and R5F11TLGDFB#35?

A: The numeric suffixes (#15, #30, #35) represent manufacturing lot codes or regional distribution designations. These designations do not affect electrical functionality, memory configuration, or peripheral operation. The only functional difference is product status: R5F11TLGDFB#15 and R5F11TLGDFB#35 are Active, while R5F11TLGDFB#30 is Not For New Designs.

Q: What is the difference between R5F11TLGDFB#35 and R5F10NLGDFB#35?

A: Both parts are electrically and mechanically equivalent with identical core specifications, memory, peripherals, and package. The base product number change (R5F11 versus R5F10) represents a manufacturing designation variant. The ECCN classification differs: R5F11TLGDFB#35 is classified as 3A991A2, while R5F10NLGDFB#35 is classified as EAR99. Selection between these parts depends on export control requirements applicable to the end application.

Q: Can I use R5F11TLGDFB#30 in a new design?

A: No. R5F11TLGDFB#30 carries Not For New Designs product status. This designation indicates that the manufacturer does not recommend this part for new product development due to limited future availability and support. Use R5F11TLGDFB#15 or R5F11TLGDFB#35 for new designs.

Q: Are there any differences in compliance certifications between substitute parts?

A: All substitute parts maintain ROHS3 compliance and REACH Unaffected status. Moisture Sensitivity Level is identical at MSL 3 (168 Hours) across all parts. The ECCN classification differs between R5F11 series (3A991A2) and R5F10 series (EAR99), which may affect export documentation requirements depending on destination country and end-use application.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of -40°C to 85°C (TA). No thermal performance differences exist between equivalent part numbers.

Q: Can I substitute these parts on an existing PCB without design changes?

A: Yes. All substitute parts use the 64-LFQFP (10x10) surface mount package with identical pin assignments and electrical characteristics. PCB footprints, solder pad layouts, and component placement require no modification. Firmware and software compatibility is maintained across all equivalent parts.

Q: What memory configurations are available across substitute parts?

A: All substitute parts provide identical memory: 128KB FLASH program memory, 8KB RAM, and 2KB EEPROM. No memory variants exist within this substitution group.

Q: Are all substitute parts available in tray packaging?

A: Yes. All substitute parts listed are supplied in tray packaging format. No tape reel or alternative packaging options are specified in this substitution group.