Renesas R5F51308ADFP#30

Overview

R5F51308ADFP#30 from Renesas is a 32-bit RX CPU-based microcontroller with 512 KB flash, 48 KB SRAM, and 8 KB data flash, operating at up to 32 MHz (50 DMIPS), featuring integrated 12-bit A/D (24 channels), dual 8-bit D/A, RTC, capacitive touch sensing (36 channels), and IEC60730 compliance for safety-critical industrial control applications.

For engineers reviewing the R5F51308ADFP#30 datasheet, R5F51308ADFP#30 pinout, R5F51308ADFP#30 application, or R5F51308ADFP#30 equivalent, key selection criteria include its 100-pin LFQFP package, 32 MHz max frequency, 1.8–5.5 V single-supply operation, software standby current of 0.37 µA, and support for event-driven peripheral linking via ELC without CPU intervention.

Technical Context

The R5F51308ADFP#30 implements the 32-bit RXv1 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling 50 DMIPS at 32 MHz. It integrates a dedicated low-power timer (LPT) running on sub-clock or IWDT oscillator during software standby mode, with 4.8 µs wake-up time.

Its clock system includes high-speed on-chip oscillator (32 MHz ±1%), PLL (4–8 MHz input), sub-clock (32.768 kHz), and CAC for real-time clock accuracy monitoring. Peripheral coordination is managed by the Event Link Controller (ELC), supporting 47 event sources and enabling linked module operation while CPU sleeps.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 mm × 14 mm, 0.5 mm pitch, exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51308AGFP#30, the R5F51308ADFP#30 offers identical functionality at lower thermal rating and cost; compared with R5F51307ADFP#30, it provides 128 KB additional flash for complex protocol stacks or future firmware expansion without changing PCB layout.

Availability

R5F51308ADFP#30 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, smart HVAC thermostats, and medical patient monitor front-ends requiring stable component supply and long lifecycle support.

Supply support for R5F51308ADFP#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 requiring rich analog integration, low-power operation, and functional safety certification - especially in white goods, building automation, and portable medical devices.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51308ADFP#30?

The R5F51308ADFP#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 on-chip multiplier/divider enable deterministic real-time execution. This performance level supports concurrent tasks including capacitive touch scanning, 12-bit A/D acquisition, and SCI-based communication-all within tight timing budgets typical of appliance control applications. The R5F51308ADFP#30 maintains this speed across its full 1.8–5.5 V supply range.

Does the R5F51308ADFP#30 support IEC60730 Class B compliance out of the box?

Yes, the R5F51308ADFP#30 includes hardware-assisted features required for IEC60730 Class B compliance, including RAM test assistance via DOC, A/D converter self-diagnostic, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) with dedicated oscillator, and analog input disconnection detection. These capabilities reduce software validation effort and eliminate the need for external safety monitors. Application-specific implementation guidance is provided in Renesas' AN1900 and the R5F51308ADFP#30 hardware manual.

What package type and pin count does the R5F51308ADFP#30 use?

The R5F51308ADFP#30 uses the PLQP0100KB-B package: a 100-pin Low-Profile Quad Flat Package measuring 14 mm × 14 mm with 0.5 mm pitch and an exposed thermal pad. This package supports full peripheral access-including all 24 A/D channels, 36 CTSU pins, 6 MTU2 PWM channels, and 7 SCI interfaces-as confirmed in Table 1.2 of the R01DS0273EJ0300 datasheet. Pin assignments are detailed in Figure 1.3 and Table 1.5.

Can the R5F51308ADFP#30 operate from a single 3.3 V supply, and what are its low-power modes?

Yes, the R5F51308ADFP#30 operates from a single 1.8–5.5 V supply, making 3.3 V operation fully supported. It offers three low-power consumption modes: Sleep, Deep Sleep, and Software Standby. In Software Standby mode, current drops to 0.37 µA while retaining SRAM and register contents, and the Low Power Timer (LPT) continues running on sub-clock or IWDT oscillator. Wake-up occurs in 4.8 µs, enabling rapid response to external events without sacrificing energy efficiency.

How many capacitive touch channels does the R5F51308ADFP#30 support, and what configurations are available?

The R5F51308ADFP#30 integrates a Capacitive Touch Sensing Unit (CTSUa) supporting up to 36 dedicated touch pins (TS0–TS35). It supports both self-capacitance mode (one pin per key, up to 36 keys) and mutual capacitance mode (matrix configuration, up to 324 keys with 36 pins). The hardware-accelerated engine includes noise cancellation, auto-calibration, and proximity detection-enabling robust touch performance in noisy industrial environments. All 36 channels are accessible in the 100-pin PLQP0100KB-B package used by the R5F51308ADFP#30.