Renesas R5F5110JAGNF#20

Overview

R5F5110JAGNF#20 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 16 KB flash, 8 KB SRAM, 12-bit A/D converter with 7 channels, RTC, and dual SCI interfaces - deployed in low-power industrial sensor nodes and smart metering endpoints.

For engineers reviewing the R5F5110JAGNF#20 datasheet, R5F5110JAGNF#20 pinout, R5F5110JAGNF#20 application, or R5F5110JAGNF#20 equivalent, key selection criteria include its 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch), −40 to +105°C extended temperature grade, 1.8–3.6 V single-supply operation, software standby mode (0.35 μA), and IEC 60730-compliant on-chip safety functions.

Technical Context

The R5F5110JAGNF#20 implements a CISC Harvard-architecture RX core with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. Its clock system integrates high-speed (32 MHz ±1%), sub-clock (32.768 kHz), and IWDT-dedicated (15 kHz) oscillators with on-chip frequency accuracy measurement (CAC).

Peripheral integration includes a 4-channel MTU2 timer unit supporting input capture, PWM, and phase counting; two CMT channels; one RIIC interface (400 kbps); one RSPI channel (16 Mbps); and a 12-bit S12AD converter with 1.0 μs minimum conversion time and double-trigger capability for motor control.

Key Specifications

Pinout & Package

Packaged in a 40-pin HWQFN (PWQN0040KC-A), 6 × 6 mm body, 0.5 mm pitch, with exposed thermal 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 R5F5110JADNF#U0, the R5F5110JAGNF#20 adds extended temperature support critical for automotive and outdoor deployments; compared with R5F51103AGNF#U0, it trades flash capacity for lower cost and smaller memory footprint in resource-constrained edge nodes.

Availability

R5F5110JAGNF#20 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F5110JAGNF#20 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX110 Group, including R5F5110JAGNF#20, was designed for cost-sensitive, ultra-low-power embedded applications demanding integrated safety features, rich analog peripherals, and robust real-time performance.

FAQ

What is the maximum operating frequency and CPU performance of the R5F5110JAGNF#20?

The R5F5110JAGNF#20 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core supports single-cycle 32×32 multiplication with 64-bit accumulation, enabling efficient signal processing and control loop execution. The R5F5110JAGNF#20 achieves this performance with no wait states on both flash and SRAM access at full speed.

Which package type and pin count does the R5F5110JAGNF#20 use?

The R5F5110JAGNF#20 uses a 40-pin HWQFN package designated PWQN0040KC-A, measuring 6 × 6 mm with 0.5 mm pitch and an exposed thermal pad. This compact, lead-free package supports high-density PCB layouts and requires connection of the exposed pad to VSS for optimal thermal and electrical performance. The R5F5110JAGNF#20 has 24 general-purpose I/O pins plus dedicated analog and peripheral function pins.

Does the R5F5110JAGNF#20 support IEC 60730 functional safety compliance?

Yes, the R5F5110JAGNF#20 includes on-chip hardware features required for Class B compliance per IEC 60730, including a clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated oscillator, RAM test assist functions, and dual voltage detection circuits. These capabilities reduce external component count and simplify certification efforts for household appliances and industrial controls. The R5F5110JAGNF#20 documentation provides safety manuals and diagnostic coverage data.

How many A/D converter channels does the R5F5110JAGNF#20 provide, and what is its conversion speed?

The R5F5110JAGNF#20 integrates a 12-bit S12AD converter with 7 usable input channels (AN000–AN004, AN006, AN008). Its minimum conversion time is 1.0 μs per channel when the ADCLK runs at 32 MHz. It supports scan modes (single, continuous, group), double-trigger mode for synchronized sampling, and external trigger inputs (ADTRG0#) - making it suitable for motor current sensing and multi-sensor acquisition. The R5F5110JAGNF#20 also includes an on-chip temperature sensor routed through the same A/D subsystem.

What communication interfaces are available on the R5F5110JAGNF#20?

The R5F5110JAGNF#20 provides two SCI modules (SCI1 and SCI12), one I²C bus interface (RIIC), and one serial peripheral interface (RSPI). SCI supports asynchronous UART, clock-synchronous, simple I²C, and simple SPI modes; RIIC operates up to 400 kbps in master/slave mode; RSPI supports 16 Mbps transfers with 8–32 bit frame sizes and dual transmit/receive buffers. All interfaces share multi-function pins managed by the MPC, allowing flexible routing without external logic. The R5F5110JAGNF#20 does not include CAN or USB.