Skip to main content

We use cookies to understand how you use our site and improve your experience. See our Privacy Policy.

R5F11BBX

Microcontroller

The R5F11BBX is a microcontroller from Renesas Electronics. View the full R5F11BBX datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

R5F11BBX shares its datasheet with R5F11BBC, whose page lists every part number it covers.

Official R5F11BBX datasheet (PDF) — the source this page was extracted from.

R5F11BBX Key Specifications

ParameterValue
ADC8/10-bit, 8 to 17 channels
DAC8-bit, 1 or 2 channels
PGA1 channel
RAM5.5 KB
Timers9 x 16-bit channels, 12-bit interval timer, RTC, watchdog
CPU CoreRL78 CISC, 3-stage pipeline
Pin Count32
Code Flash32/64 KB
Comparator2 channels
Data Flash4 KB
CPU Max Frequency32 MHz
Serial InterfacesCSI/Simplified SPI, UART (LIN-bus), I2C/simplified I2C, IrDA
Current Consumptionas low as 66 μA/MHz; 0.57 μA for RTC + LVD
Supply Voltage (VDD)1.6V to 5.5V
Operating Temperature-40°C to +85°C (A) / -40°C to +105°C (G)
On-Chip Oscillator Accuracy±1.0% (VDD = 1.8 to 5.5V, TA = -20 to +85°C)

R5F11BBX Overview

Part: R5F11BBCAFP — Renesas Electronics (RL78F family)

Type: 16-bit RL78 MCU (CISC core, 32 KB code flash)

Description: 1.6–5.5 V, 32 MHz RL78 MCU with 32 KB code flash, 4 KB data flash and 5.5 KB RAM, in a 32-pin LQFP, with consumption as low as 66 μA/MHz.

Operating Conditions:

  • Supply voltage: 1.6–5.5 V
  • Operating temperature: -40 to +85 °C (A grade, which includes this part)
  • Max CPU clock: 32 MHz
  • High-speed on-chip oscillator: 1 to 64 MHz selectable, ±1.0% (VDD = 1.8–5.5 V, TA = -20 to +85 °C)

Absolute Maximum Ratings:

  • Supply voltage (VDD, EVDD0): -0.5 to +6.5 V
  • Input voltage, P60 to P63 (N-ch open-drain): -0.3 to +6.5 V
  • Output current, high (per pin, P00–P06, P10–P17, etc.): -40 mA
  • Output current, low (per pin, same pins): 40 mA
  • Storage temperature: -65 to +150 °C

Key Specs:

  • Code flash: 32 KB (1 KB blocks); data flash: 4 KB; RAM: 5.5 KB
  • Minimum instruction time: 0.03125 μs at 32 MHz
  • Data flash endurance: 1,000,000 rewrites (typ.), rewrite voltage VDD = 1.8–5.5 V
  • A/D converter: 8/10-bit, VDD = 1.6–5.5 V, internal 1.45 V reference and temperature sensor
  • D/A converter: 8-bit, 1 or 2 channels
  • Serial interfaces: simplified SPI (CSI) 3 to 6 channels, UART 3 channels, I2C/simplified I2C 3 to 6 channels, IrDA 1 channel
  • Timers: 9 16-bit channels, 12-bit interval timer, RTC, watchdog
  • LVD: 14 selectable levels

Features:

  • RL78 CPU core with 3-stage pipeline and multiply/divide/MAC instructions
  • HALT, STOP and SNOOZE low-power modes
  • On-chip POR and voltage detector
  • Data transfer controller (DTC) and event link controller (ELC)
  • 2 comparators and a programmable gain amplifier
  • Self-programming with boot swap and flash shield window; on-chip debug
  • Different-potential interface for 1.8/2.5/3 V devices
  • BCD correction circuit

Applications:

  • General-purpose applications
  • Consumer applications (A grade)

Package:

  • 32-pin plastic LQFP (7 × 7 mm, 0.8 mm pitch), PLQP0032GB-A / PLQP0032GE-A

R5F11BBX Electrical Characteristics

This chapter describes the following electrical specifications.

Target products A: Consumer applications TA = -40 to +85°C

R5F11BxxAxx

  • G: Industrial applications when TA = -40 to +105°C products is used in the range of TA = -40 to +85°C R5F11BxxGxx
  • Caution 1. The RL78 microcontrollers have an on-chip debug function, which is provided for development and evaluation. Do not use the on-chip debug function in products designated for mass production, because the guaranteed number of rewritable times of the flash memory may be exceeded when this function is used, and product reliability therefore cannot be guaranteed. Renesas Electronics is not liable for problems occurring when the on-chip debug function is used.
  • Caution 2. With products not provided with an EVDD0, EVSS0 pin, replace EVDD0 with VDD, or replace EVSS0 with VSS.
  • Caution 3. The pins mounted depend on the product. Refer to 2.1 Port Functions to 2.2.1 Functions for each product in the RL78F User's Manual.

R5F11BBX Absolute Maximum Ratings

(1/2)

ParameterSymbolsConditionsRatingsUnit
Supply voltageVDD-0.5 to +6.5V
Supply voltageEVDD0-0.5 to +6.5V
REGC pin input voltageVIREGCREGC-0.3 to +2.8 and -0.3 to VDD +0.3 Note 1V
Input voltageVI1P00 to P06, P10 to P17, P30, P31, P40 to P43, P50 to P55, P70 to P77, P120, P140, P141, P146, P147-0.3 to EVDD0 +0.3 and -0.3 to VDD +0.3 Note 2V
Input voltageVI2P60 to P63 (N-ch open-drain)-0.3 to +6.5V
Input voltageVI3P20 to P27, P121 to P124, P137, EXCLK, EXCLKS, RESET-0.3 to VDD +0.3 Note 2V
Output voltageVO1P00 to P06, P10 to P17, P30, P31, P40 to P43, P50 to P55, P60 to P63, P70 to P77, P120, P130, P140, P141, P146, P147-0.3 to EVDD0 +0.3 and -0.3 to VDD +0.3 Note 2V
Output voltageVO2P20 to P27-0.3 to VDD +0.3 Note 2V
Analog input voltageVAI1ANI16 to ANI24-0.3 to EVDD0 +0.3 and -0.3 to AVREF (+) +0.3 Notes 2, 3V
Analog input voltageVAI2ANI0 to ANI7-0.3 to VDD +0.3 and -0.3 to AVREF (+) +0.3 Notes 2, 3V

Note 1. Connect the REGC pin to VSS via a capacitor (0.47 to 1 μ F). This value regulates the absolute maximum rating of the REGC pin. Do not use this pin with voltage applied to it.

Note 2. Must be 6.5 V or lower.

Note 3. Do not exceed AVREF (+) + 0.3 V in case of A/D conversion target pin.

Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded.

Remark 1. Unless specified otherwise, the characteristics of alternate-function pins are the same as those of the port pins.

Remark 2. AVREF (+): + side reference voltage of the A/D converter.

Remark 3. VSS: Reference voltage

(2/2)

ParameterSymbolsConditionsConditionsRatingsUnit
Output current, highI OH1Per pinP00 to P06, P10 to P17, P30, P31, P40 to P43, P50 to P55, P70 to P77, P120, P130, P140, P141, P146, P147-40mA
Output current, highI OH1Total of all pins -170 mAP00 to P04, P40 to P43,P120, P130, P140, P141-70mA
Output current, highI OH1Total of all pins -170 mAP05, P06, P10 to P17, P30, P31, P50 to P55, P70 to P77, P146, P147-100mA
Output current, highI OH2Per pinP20 to P27-0.5mA
Output current, highI OH2Total of all pinsP20 to P27-2mA
Output current, lowI OL1Per pinP00 to P06, P10 to P17, P30, P31, P40-P43, P50 to P55, P60 to P63, P70 to P77, P120, P130, P140, P141, P146, P14740mA
Output current, lowI OL1Total of all pins 170 mAP00 to P04, P40 to P47, P120, P130, P140, P14170mA
Output current, lowI OL1Total of all pins 170 mAP05, P06, P10 to P17, P30, P31, P50 to P55, P70 to P77, P146, P147100mA
Output current, lowI OL2Per pinP20 to P271mA
Output current, lowI OL2Total of all pinsP20 to P275mA
Operating ambient tem- peratureTAIn normal operation modeIn normal operation mode-40 to +85° C
Operating ambient tem- peratureTAIn flash memory programming modeIn flash memory programming mode-40 to +85° C
Storage temperatureTstg-65 to +150° C

Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded.

Remark Unless specified otherwise, the characteristics of alternate-function pins are the same as those of the port pins.

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
R5F11B7CRenesas Electronics—
R5F11B7ERenesas ElectronicsHWQFN-24 4x4mm
R5F11BBCRenesas Electronics—
R5F11BBCAFPRenesas ElectronicsLQFP-32 (7 x 7 mm, 0.8 mm pitch)
R5F11BBERenesas Electronics—
R5F11BCCRenesas ElectronicsWFLGA-36 4x4mm
R5F11BCERenesas ElectronicsWFLGA-36 4x4mm
R5F11BCXRenesas Electronics—
R5F11BGCRenesas ElectronicsLFQFP-48 7x7mm
R5F11BGERenesas ElectronicsLFQFP-48 7x7mm
R5F11BGXRenesas ElectronicsLFQFP-48 7x7mm
R5F11BLCRenesas ElectronicsLFQFP-64 10x10mm
R5F11BLERenesas ElectronicsLFQFP-64 10x10mm
R5F11BLXRenesas ElectronicsLFQFP-64 10x10mm
RL78FRenesas Electronics—

Other Microcontrollers (MCU)

All Microcontrollers (MCU) datasheetsAll Renesas Electronics datasheets (42)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Ask your AI agent about the R5F11BBX

Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.

claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp

Then ask: "Can the R5F11BBX run from my 12 V rail? Check it against the datasheet limits."

Create a free account $2 of usage every month, no card needed.