Renesas R5F11B7CANA#40

Overview

R5F11B7CANA#40 from Renesas is a 24-pin RL78/G1F 16-bit microcontroller with 32 KB flash, 5.5 KB RAM, and 4 KB data flash, operating from 1.6 V to 5.5 V at up to 32 MHz. It integrates an 8/10-bit ADC (8 channels), 8-bit DAC (1 channel), 2 comparators, PGA, RTC, and ultra-low-power modes (0.57 μA in STOP with RTC+LVD), targeting battery-powered consumer appliances and sensor nodes.

For engineers reviewing the R5F11B7CANA#40 datasheet, R5F11B7CANA#40 pinout, R5F11B7CANA#40 application, or R5F11B7CANA#40 equivalent, key selection criteria include its HWQFN-24 (4×4 mm, 0.5 mm pitch) package, 20 I/O count, embedded LIN-capable UART, and verified 66 μA/MHz active power consumption across −40°C to +85°C ambient.

Technical Context

The R5F11B7CANA#40 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It supports self-programming with boot swap and flash shield window functions, plus background operation for data flash rewriting while executing code.

Its peripheral set includes Timer Array Unit (4 channels), Timer RJ (1), Timer RD (2 with PWMOPA), Timer RG (1), Timer RX (1), 12-bit interval timer, watchdog timer, and Event Link Controller (22 event signals) enabling hardware-triggered peripheral chaining without CPU intervention.

Key Specifications

Pinout & Package

Package: HWQFN-24 (4 × 4 mm, 0.5 mm pitch) with exposed die pad; requires 0.47–1 μF capacitor between REGC and VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F11B7EANA#40 and R5F11BBCANA#40, the R5F11B7CANA#40 delivers optimal cost/performance for compact, battery-constrained systems where 32 KB flash and 20 I/O meet functional requirements without over-provisioning.

Availability

R5F11B7CANA#40 is available at Aetrix Electronics and suitable for smart home sensors, industrial monitoring nodes, and appliance control panels requiring stable component supply and long-term manufacturability.

Supply support for R5F11B7CANA#40 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 targets general-purpose embedded applications demanding ultra-low power, integrated analog, and robust real-time control - optimized for cost-sensitive, battery-operated end equipment.

FAQ

What is the maximum operating frequency of the R5F11B7CANA#40?

The R5F11B7CANA#40 supports a maximum CPU operation frequency of 32 MHz using the high-speed on-chip oscillator. This is achievable across the full 1.6 V to 5.5 V supply range and −40°C to +85°C ambient temperature, with instruction execution time as fast as 0.03125 μs per cycle. The device also supports lower-frequency modes including 32.768 kHz for RTC operation.

Does the R5F11B7CANA#40 support LIN bus communication?

Yes, the R5F11B7CANA#40 supports LIN bus communication through its UART0 peripheral, which is explicitly documented as LIN-bus compatible in the RL78/G1F datasheet. UART0 meets ISO 17987 physical layer requirements and supports LIN 2.x frame formatting, making it suitable for automotive body electronics and industrial sub-networks requiring single-wire deterministic communication.

How many analog-to-digital converter channels does the R5F11B7CANA#40 have?

The R5F11B7CANA#40 integrates an 8/10-bit resolution A/D converter with 8 analog input channels (ANI0–ANI7). These channels operate across the full 1.6 V to 5.5 V supply range and support internal reference voltage (1.45 V) and temperature sensor inputs. Channel selection and conversion triggering can be managed via software or hardware events using the Event Link Controller.

What packaging and lead pitch does the R5F11B7CANA#40 use?

The R5F11B7CANA#40 uses a 24-pin plastic HWQFN package measuring 4 × 4 mm with 0.5 mm lead pitch. It features an exposed die pad for thermal dissipation and requires a 0.47–1 μF capacitor between the REGC pin and VSS. This package is supplied in embossed tape (#40 specification), optimized for automated SMT assembly in high-volume consumer electronics production.

Can the R5F11B7CANA#40 perform flash memory reprogramming during runtime?

Yes, the R5F11B7CANA#40 supports self-programming of both code and data flash memory during runtime. It includes boot swap functionality for safe firmware updates and a flash shield window to protect critical sections from accidental overwrite. Data flash supports background operation (BGO), allowing program execution from flash while simultaneously rewriting data flash - essential for logging or configuration storage in uninterrupted operation.