Renesas R5F11BCCALA#U0

Overview

R5F11BCCALA#U0 from Renesas Electronics is a 36-pin WFLGA-packaged RL78/G1F 16-bit microcontroller with 32 KB flash, 4 KB data flash, and 5.5 KB RAM. It operates from 1.6 V to 5.5 V, achieves 66 μA/MHz active current and 0.57 μA RTC+LVD standby, and integrates 15-channel 10-bit ADC, dual 8-bit DAC, two comparators, PGA, and real-time clock - deployed in battery-powered industrial sensors and low-power HMI controllers.

For engineers reviewing the R5F11BCCALA#U0 datasheet, R5F11BCCALA#U0 pinout, R5F11BCCALA#U0 application, or R5F11BCCALA#U0 equivalent, key selection criteria include its 36-pin 4×4 mm WFLGA package, 32 KB code flash with self-programming and boot swap, 15 analog input channels, LIN-capable UART, and −40°C to +85°C consumer-grade temperature range.

Technical Context

The R5F11BCCALA#U0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.03125 μs at 32 MHz up to 30.5 μs at 32.768 kHz). It features a high-accuracy ±1.0% on-chip oscillator (1–32 MHz), low-speed 15 kHz internal RC, and dedicated subsystem clock support for RTC operation.

Its peripheral set includes Timer Array Unit (TAU) with 4 channels, Timer RD (2-channel PWMOPA), Timer RG, Timer RX, 12-bit interval timer, and Event Link Controller (ELC) supporting 21 event inputs and 10 trigger outputs - enabling deterministic peripheral coordination without CPU intervention.

Key Specifications

Pinout & Package

Package: 36-pin WFLGA (4 × 4 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F11BBCANA#U0, the R5F11BCCALA#U0 offers higher analog channel density and smaller footprint; versus R5F11BCEALA#U0, it trades flash capacity for cost-sensitive deployments where 32 KB is sufficient and BOM optimization is prioritized.

Availability

R5F11BCCALA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, portable medical monitors, and energy meter front-ends requiring stable component supply across long product lifecycles.

Supply support for R5F11BCCALA#U0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G1F product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial and consumer devices requiring rich analog integration and robust real-time control.

FAQ

What is the maximum operating frequency of the R5F11BCCALA#U0?

The R5F11BCCALA#U0 supports up to 32 MHz CPU operation using the high-speed on-chip oscillator. At this frequency, minimum instruction execution time is 0.03125 μs. The device also supports lower-frequency modes including 32.768 kHz for RTC and 15 kHz for ultra-low-power standby - all configurable via system clock control registers in the R5F11BCCALA#U0.

Does the R5F11BCCALA#U0 support LIN bus communication?

Yes, the R5F11BCCALA#U0 supports LIN bus communication through its UART0 peripheral, which includes LINSEL functionality. This allows the R5F11BCCALA#U0 to operate as a LIN slave node with automatic sync-break detection, checksum handling, and configurable baud rates - eliminating need for external LIN transceivers in basic implementations.

How many analog input channels does the R5F11BCCALA#U0 have?

The R5F11BCCALA#U0 provides 15 analog input channels (ANI0–ANI7, ANI16–ANI24), confirmed in the RL78/G1F datasheet Section 1.6. These channels support 8/10-bit resolution ADC operation across the full 1.6–5.5 V supply range, with internal 1.45 V reference and temperature sensor - enabling direct sensor interfacing without external signal conditioning for the R5F11BCCALA#U0.

What is the purpose of the REGC pin on the R5F11BCCALA#U0?

The REGC pin on the R5F11BCCALA#U0 connects to an external 0.47–1 μF capacitor tied to VSS to stabilize the internal voltage regulator. This capacitor is mandatory for proper LDO operation and low-noise analog performance. Failure to populate this capacitor may cause ADC inaccuracies, oscillator instability, or erratic reset behavior in the R5F11BCCALA#U0.

Can the R5F11BCCALA#U0 perform simultaneous ADC and DAC operations?

Yes, the R5F11BCCALA#U0 supports concurrent ADC sampling and DAC output updates. Its 10-bit ADC and dual 8-bit DAC operate independently with separate clocks and triggers; the Event Link Controller (ELC) can synchronize DAC updates to ADC end-of-conversion events - enabling closed-loop analog control without CPU intervention in the R5F11BCCALA#U0.