Part: RL78F — Renesas Type: Microcontroller (MCU) Description: Ultra-low power 1.6–5.5 V MCU with a CISC CPU core operating up to 32 MHz, featuring 32/64 KB Flash, 4 KB Data Flash, 5.5 KB RAM, and extensive integrated analog and serial peripherals for general purpose applications.

Operating Conditions:

• Supply voltage: 1.6 to 5.5 V
• Operating temperature: -40 to +85°C (consumer applications)
• Max CPU frequency: 32 MHz

Key Specs:

• Code Flash Memory: 32/64 KB
• Data Flash Memory: 4 KB
• On-chip RAM: 5.5 KB
• Max CPU operation: 32 MHz
• High-speed on-chip oscillator accuracy: ±1.0% (VDD = 1.8 to 5.5 V, TA = -20 to +85°C)
• Data flash rewrite endurance: 1,000,000 times (TYP.)
• A/D converter resolution: 8/10-bit
• D/A converter resolution: 8-bit

Features:

• Ultra-low power consumption technology (HALT, STOP, SNOOZE modes)
• CISC architecture with 3-stage pipeline CPU core
• On-chip debug function and self-programming
• High-speed on-chip oscillator (up to 64 MHz, ±1.0% accuracy)
• On-chip power-on-reset (POR) and voltage detector (LVD)
• Data transfer controller (DTC) and Event link controller (ELC)
• Multiple serial interfaces: Simplified SPI (CSI), UART (LIN-bus supported), I2C/simplified I2C, IrDA
• Integrated 16-bit timers, 12-bit interval timer, real-time clock, watchdog timer
• 8/10-bit A/D converter, 8-bit D/A converter, 2 comparators, 1 programmable gain amplifier (PGA)
• Different potential interface for 1.8/2.5/3 V device connection

Applications:

• General Purpose Applications

Package:

• 24-pin plastic HWQFN (4 × 4 mm, 0.5 mm pitch)
• 32-pin plastic HWQFN (5 × 5 mm, 0.5 mm pitch)
• 32-pin plastic LQFP (7 × 7 mm, 0.8 mm pitch)
• 36-pin plastic WFLGA (4 × 4 mm, 0.5 mm pitch)
• 48-pin plastic LFQFP (7 × 7 mm, 0.5 mm pitch)
• 64-pin plastic LFQFP (10 × 10 mm, 0.5 mm pitch)

R5F11BBC Pinout

Package: 24-pin plastic HWQFN (4 × 4 mm, 0.5-mm pitch)

Notes

• REGC pins (3, 6): Must be connected to VSS via a 0.47–1 μF capacitor for proper regulator operation.
• Functions in parentheses: Can be assigned via peripheral I/O redirection registers (PIOR0–PIOR3).
• Pin names preserve subscripts and alternate function notation as shown in the datasheet diagram.
• This is the 24-pin HWQFN variant; other RL78F variants (32-pin, 36-pin) have different pin counts and assignments.

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.

(1/2)

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)

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.