Renesas R5F1214CANA#40

Overview

R5F1214CANA#40 from Renesas Electronics is a 16-pin HWQFN-packaged 32 KB flash RL78/G16 microcontroller with 2 KB RAM, 10-bit A/D converter (up to 11 channels), capacitive touch sensing unit (15-channel self-capacitance), and integrated real-time clock with calendar function - deployed in industrial human-machine interface modules requiring low-power operation at −40°C to +125°C.

For engineers reviewing the R5F1214CANA#40 datasheet, R5F1214CANA#40 pinout, R5F1214CANA#40 application, or R5F1214CANA#40 equivalent, key selection criteria include its 16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) footprint, 32 KB code flash with 1 KB data flash, CTSU-based touch control capability, and support for UART/SPI/I²C interfaces across three serial channels.

Technical Context

The R5F1214CANA#40 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.0625 μs (@16 MHz high-speed on-chip oscillator) to 30.5 μs (@32.768 kHz subsystem clock). It integrates an on-chip high-speed oscillator with ±1.5% accuracy over −40°C to +125°C (M-grade).

Its peripheral set includes eight 16-bit timers, one 12-bit interval timer, one watchdog timer, one 99-year RTC with alarm and correction, up to 11-channel 10-bit A/D converter with internal reference (0.815 V), two comparators, and a dedicated 15-channel capacitive touch sensing unit (CTSU) supporting self- and mutual-capacitance configurations.

Key Specifications

Pinout & Package

Package: 16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) with exposed die pad - requires thermal pad soldering to unconnected PCB copper area per Renesas design guidance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F1214CGNA#40 and R5F1214AANA#40, the R5F1214CANA#40 provides the highest thermal resilience (125°C) and largest embedded flash (32 KB), making it optimal for sealed, high-temperature industrial HMIs where firmware complexity and environmental stress converge.

Availability

R5F1214CANA#40 is available at Aetrix Electronics and suitable for industrial control panels, smart appliance interfaces, and energy meter user interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F1214CANA#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/G16 product line delivers ultra-low-power, high-integration MCUs for cost-sensitive industrial HMIs, white goods, and metering applications - emphasizing capacitive touch, RTC, and robust serial connectivity in compact packages.

FAQ

What is the maximum operating temperature specification for the R5F1214CANA#40?

The R5F1214CANA#40 is qualified for operation from −40°C to +125°C (M-grade industrial specification), validated per Renesas' reliability testing standards for continuous operation in sealed enclosures, motor drive environments, and utility infrastructure applications.

Does the R5F1214CANA#40 support in-system programming via its debug interface?

Yes, the R5F1214CANA#40 supports on-chip debug via the TOOL0/TOOLRxD/TOOLTxD pins, enabling full in-circuit programming, breakpoint debugging, and memory inspection using Renesas E2 studio and CS+ IDE without requiring external debug probes.

How many capacitive touch channels does the R5F1214CANA#40 support, and what configuration options exist?

The R5F1214CANA#40 integrates a dedicated CTSU supporting up to 15 self-capacitance channels (one per pin) or up to 16 mutual-capacitance keys using matrix configuration across 15 selectable transmit/receive pins - all managed by hardware acceleration without CPU intervention.

What serial communication interfaces are available on the R5F1214CANA#40, and how are they allocated across pins?

The R5F1214CANA#40 provides up to three UART channels, three simplified SPI (CSI) channels, three simplified I²C channels, and one full I²C interface - with flexible pin remapping via PIOR registers, allowing concurrent use of multiple protocols on shared pins like P00, P01, and P02.

Is the R5F1214CANA#40 pin-compatible with other RL78/G16 variants in the same package?

Yes, all RL78/G16 16-pin HWQFN variants - including R5F1214CANA#40, R5F1214CGNA#40, and R5F1214AANA#40 - share identical pinouts and mechanical footprints, enabling drop-in replacement across temperature and memory grades without PCB redesign.