Renesas R5F51305AGFK#30

Overview

R5F51305AGFK#30 from Renesas is a 32-bit RX CPU-based microcontroller in the RX130 Group, operating at up to 32 MHz (50 DMIPS), with 128 KB on-chip flash, 16 KB SRAM, and 8 KB data flash. It integrates a 12-bit A/D converter (17 channels), two 8-bit D/A channels, capacitive touch sensing (32 keys), RTC, low-power timer, and six communication interfaces including SCI, I²C, and RSPI - deployed in industrial HMI and consumer appliance control systems.

For engineers reviewing the R5F51305AGFK#30 datasheet, R5F51305AGFK#30 pinout, R5F51305AGFK#30 application, or R5F51305AGFK#30 equivalent, key selection criteria include its LQFP-64 (PLQP0064GA-A) package, –40°C to +105°C temperature grade, 1.8–5.5 V single-supply operation, and IEC60730-compliant self-test features for safety-critical embedded control.

Technical Context

The R5F51305AGFK#30 implements the 32-bit RXv1 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling 50 DMIPS at 32 MHz with 64-bit accumulator support for single-cycle 32×32 multiply operations. Its clock system includes high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), PLL, and CAC for frequency accuracy monitoring.

Peripheral integration centers on event-driven operation: ELC enables interrupt-free inter-module triggering (e.g., MTU → A/D start), DTC supports four transfer modes with chain capability, and CTSU provides mutual-capacitance touch sensing up to 32 keys in 64-pin packages - all while maintaining low-power operation down to 0.37 µA in software standby mode with 4.8 µs wake-up.

Key Specifications

Pinout & Package

LQFP-64 package (PLQP0064GA-A), 14 mm × 14 mm, 0.8 mm pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51305AGFK#30, R5F51305ADFK#30 trades extended temperature range for lower cost in benign environments, while R5F51306BGFK#30 adds memory headroom without altering I/O, timing, or power behavior - making both viable alternatives depending on thermal and firmware scalability requirements.

Availability

R5F51305AGFK#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance controllers, HVAC actuators, and energy meter interface modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51305AGFK#30 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 industrial, automotive, and IoT markets.

The RX130 Group targets cost-sensitive, safety-aware embedded applications - delivering IEC60730-compliant MCUs with integrated touch, analog, and communication peripherals in compact LQFP and QFN packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51305AGFK#30?

The R5F51305AGFK#30 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance using the 32-bit RXv1 CPU core. Its 5-stage pipeline, variable-length instruction set, and single-cycle 32×32 multiply capability enable deterministic real-time execution - critical for motor control and sensor fusion tasks in the R5F51305AGFK#30.

Does the R5F51305AGFK#30 support capacitive touch sensing, and how many keys are available in its LQFP-64 package?

Yes, the R5F51305AGFK#30 integrates a Capacitive Touch Sensing Unit (CTSU) supporting up to 32 keys in mutual-capacitance mode for its PLQP0064GA-A (LQFP-64) package. This is confirmed in Table 1.2 of the datasheet, which specifies "32 channels" for 64-pin variants - enabling robust touch interfaces without external controller ICs in the R5F51305AGFK#30.

What are the memory resources available on the R5F51305AGFK#30?

The R5F51305AGFK#30 includes 128 KB of on-chip flash memory (zero wait states at 32 MHz), 16 KB of SRAM, and 8 KB of data flash rated for 1,000,000 program/erase cycles. All memory blocks support background operation and 1.8 V programming - allowing firmware updates and data logging without halting application code execution on the R5F51305AGFK#30.

Is the R5F51305AGFK#30 qualified for extended temperature operation, and what is its rating?

Yes, the R5F51305AGFK#30 is rated for –40°C to +105°C operation (G-grade), as specified in Table 1.3 of the datasheet. This extended temperature qualification makes it suitable for under-hood automotive accessories, industrial drives, and outdoor equipment where ambient conditions exceed standard commercial limits - a key differentiator of the R5F51305AGFK#30.

Which communication interfaces does the R5F51305AGFK#30 support, and how many channels are available?

The R5F51305AGFK#30 supports up to six serial interfaces: six SCI channels (SCI0,1,5,6,8,9), one SCIh channel (SCI12), one I²C bus interface (RIIC), and one RSPI channel. In the 64-pin LQFP package, all are fully implemented - providing flexible connectivity for displays, sensors, meters, and wireless modules in designs based on the R5F51305AGFK#30.