Renesas R5F51307AGNE#20

Overview

R5F51307AGNE#20 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 384 KB on-chip flash, 48 KB SRAM, 8 KB data flash, 12-bit A/D converter (17 channels), two 8-bit D/A outputs, capacitive touch sensing (24 keys), RTC, and IEC60730 compliance - deployed in industrial HMI and consumer appliance control systems.

For engineers reviewing the R5F51307AGNE#20 datasheet, R5F51307AGNE#20 pinout, R5F51307AGNE#20 application, or R5F51307AGNE#20 equivalent, key selection criteria include its HWQFN-48 package with 0.5 mm pitch, –40°C to +105°C extended temperature rating, 1.8–5.5 V single-supply operation, and integrated event link controller (ELC) for low-power peripheral coordination without CPU wake-up.

Technical Context

The R5F51307AGNE#20 implements a CISC Harvard architecture with 5-stage pipeline and variable-length instructions, enabling 1-instruction-per-cycle execution and ultra-compact code density. Its RX CPU core includes a 64-bit accumulator for 32×32-bit multiply results and hardware division unit completing 32÷32-bit operations in fixed cycles.

Power management integrates three low-power modes (sleep, deep sleep, software standby), with sub-µA standby current (0.37 µA) and 4.8 µs wake-up latency. Clocking supports multiple sources: 32.768 kHz sub-clock for RTC, 4–8 MHz PLL input, and factory-trimmed 32 MHz ±1% HOCO for full-speed operation without external crystal dependency.

Key Specifications

Pinout & Package

Package: HWQFN-48 (PWQN0048KB-A), 7 × 7 mm body, 0.5 mm pitch, thermally enhanced with exposed pad. Pin 1 marked by dot; pins numbered counterclockwise.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51307ADNE#U0 and R5F51306BGNE#U0, the R5F51307AGNE#20 uniquely delivers extended temperature operation (–40°C to +105°C) combined with 384 KB flash - enabling high-reliability deployment in thermally demanding environments without sacrificing peripheral richness or low-power capability.

Availability

R5F51307AGNE#20 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance control, and medical device front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51307AGNE#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 RX130 Group is designed for cost-sensitive, low-power embedded applications requiring robust analog integration, capacitive touch, safety compliance (IEC60730), and extended temperature operation - targeting home appliances, industrial sensors, and portable medical devices.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51307AGNE#20?

The R5F51307AGNE#20 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core features a 5-stage pipeline, variable-length instruction set, and hardware multiplier/divider enabling single-cycle 32×32-bit multiplication. The R5F51307AGNE#20 achieves this performance across its full 1.8–5.5 V supply range, with frequency scaling tied to VCC voltage per datasheet specifications.

Does the R5F51307AGNE#20 support capacitive touch sensing, and how many keys are available in its HWQFN-48 package?

Yes, the R5F51307AGNE#20 integrates a hardware capacitive touch sensing unit (CTSU) supporting up to 24 keys in the HWQFN-48 package (PWQN0048KB-A). This is confirmed in Table 1.2 of the datasheet, which specifies "24 channels" for CTSU in the 48-pin variants. The R5F51307AGNE#20 uses TS0–TS23 pins for touch electrode connections and requires no external RC networks for basic operation.

What are the memory resources available on the R5F51307AGNE#20?

The R5F51307AGNE#20 includes 384 KB of on-chip flash memory (zero wait states at 32 MHz), 48 KB of SRAM (no wait states), and 8 KB of data flash rated for 1,000,000 program/erase cycles. All memory blocks are accessible under single 1.8–5.5 V supply, and flash supports background operation (BGO) for concurrent execution and programming - a key feature of the R5F51307AGNE#20's embedded firmware update capability.

Is the R5F51307AGNE#20 qualified for extended temperature operation, and what is its specified range?

Yes, the R5F51307AGNE#20 is qualified for extended temperature operation with a specified ambient range of –40°C to +105°C (G-grade). This is explicitly stated in Table 1.3 of the datasheet under "Operating Temperature" for all part numbers ending in "G", including R5F51307AGNE#20. The G-grade qualification makes the R5F51307AGNE#20 suitable for deployment in high-temperature industrial enclosures and automotive under-hood-adjacent applications.

Which communication interfaces are supported by the R5F51307AGNE#20, and how many instances are available?

The R5F51307AGNE#20 supports up to seven serial communications interface (SCI) channels (SCI0, SCI1, SCI5, SCI6, SCI8, SCI9, SCI12), one I²C bus interface (RIICa), and one serial peripheral interface (RSPIa). In the HWQFN-48 package, SCIg provides six channels and SCIh adds one additional channel with LIN protocol support. The R5F51307AGNE#20 also includes an I²C interface compliant with SMBus and fast-mode (400 kbps) operation.