Renesas R5F5110HADNF#20

Overview

R5F5110HADNF#20 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 8 KB on-chip flash, 8 KB SRAM, 12-bit A/D converter with 7 input channels, RTC, and dual SCI interfaces - deployed in low-power industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F5110HADNF#20 datasheet, R5F5110HADNF#20 pinout, R5F5110HADNF#20 application, or R5F5110HADNF#20 equivalent, this page delivers verified package mapping (PWQN0040KC-A, 40-pin HWQFN), confirmed peripheral channel counts, supply voltage range (1.8–3.6 V), software standby current (0.35 μA), and real-time clock calendar mode support - all critical for embedded firmware development and power-constrained PCB layout.

Technical Context

The R5F5110HADNF#20 implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code density and single-cycle instruction execution. Its on-chip high-speed oscillator delivers 32 MHz ±1% accuracy across −40 to +85°C, synchronized to ICLK, PCLK, and FCLK domains for deterministic timing across CPU, peripherals, and FlashIF.

It integrates a 12-bit A/D converter with 1.0 μs minimum conversion time at 32 MHz ADCLK, double-trigger capability for motor control, and supports scan modes including group scan. The MTU2 timer unit provides four 16-bit channels with phase counting and input capture, while the DTC enables chain-transfer activation by interrupt sources including SCI, RSPI, and A/D completion.

Key Specifications

Pinout & Package

Packaged in PWQN0040KC-A: 40-pin HWQFN, 6 × 6 mm body, 0.5 mm pitch, exposed thermal pad (recommended connection to VSS).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit MCU applications.

Compared with R5F5110HADNF#20, R5F51103ADNF#U0 provides 8× more flash for bootloader+application separation and enhanced security features, while R5F5110JADNF#U0 offers 2× flash headroom for feature expansion - both retain identical pinout, power profile, and peripheral channel count.

Availability

R5F5110HADNF#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance controllers, motor drive interfaces, and IoT edge gateways requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F5110HADNF#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX110 Group targets cost-sensitive, ultra-low-power embedded applications - designed for rapid development of sensor hubs, smart meters, and white goods control systems with integrated safety and timing functions.

FAQ

What is the maximum operating frequency of the R5F5110HADNF#20 and what supply voltage is required?

The R5F5110HADNF#20 achieves a maximum operating frequency of 32 MHz, which requires a supply voltage of 2.7 V to 3.6 V. At lower voltages - 2.4 V to 2.7 V - the max frequency drops to 16 MHz, and at 1.8 V to 2.4 V, it is limited to 8 MHz. This voltage-frequency scaling is enforced by internal regulators and ensures stable operation across its 1.8–3.6 V range. The R5F5110HADNF#20 datasheet specifies these relationships in Section 1.1 and Table 1.1.

Does the R5F5110HADNF#20 support real-time clock (RTC) functionality, and if so, what modes are available?

Yes, the R5F5110HADNF#20 includes a dedicated real-time clock (RTCA) module supporting both calendar count mode (with leap year and 30-second adjustment) and binary count mode. It generates alarm, periodic, and carry interrupts, and can initiate exit from software standby mode via RTCOUT signal. The sub-clock oscillator (32.768 kHz) serves as its time base, and calendar mode is fully functional in the R5F5110HADNF#20 per Section 1.1 and Table 1.2 of the datasheet.

How many A/D converter channels does the R5F5110HADNF#20 provide, and what is the minimum conversion time?

The R5F5110HADNF#20 integrates a 12-bit A/D converter (S12AD) with 7 input channels - AN000 to AN004, AN006, and AN008 to AN010 - as confirmed in Table 1.2 for the 40-pin HWQFN package. Its minimum conversion time is 1.0 μs per channel when ADCLK runs at 32 MHz. This timing enables high-speed sampling for motor current sensing or audio preprocessing without external ADCs. The R5F5110HADNF#20 supports scan and double-trigger modes for enhanced control-loop fidelity.

What package type and pin count does the R5F5110HADNF#20 use, and are there thermal design considerations?

The R5F5110HADNF#20 uses the PWQN0040KC-A package: a 40-pin HWQFN with 6 × 6 mm body, 0.5 mm pitch, and an exposed thermal pad. Renesas explicitly recommends connecting the exposed pad to VSS for optimal thermal dissipation and EMI suppression. This package supports reflow soldering per JEDEC J-STD-020, and its compact footprint suits space-constrained designs such as wearable sensors and smart actuators. The R5F5110HADNF#20 pin assignments are detailed in Figure 1.6 and Table 1.9 of the datasheet.

Can the R5F5110HADNF#20 operate in low-power modes, and what is the lowest achievable current draw?

Yes, the R5F5110HADNF#20 supports three low-power modes: sleep, deep sleep, and software standby. Its lowest active current draw is 0.1 mA/MHz in high-speed operating mode. In software standby mode, it achieves 0.35 μA typical supply current with 4.8 μs wake-up latency - verified in Section 1.1 and Table 1.1. This makes the R5F5110HADNF#20 suitable for battery-powered applications where multi-year operation is required, such as wireless sensor networks and portable medical devices.