Renesas R5F5111JAGFM#3A

Overview

R5F5111JAGFM#3A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 16 KB on-chip flash, 8 KB SRAM, and 8 KB data flash. It integrates a 12-bit A/D converter (14 channels), USB 2.0 full-speed host/function/OTG, RTC with calendar mode, and operates across −40°C to +105°C in a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) package - suited for compact industrial control and sensor interface applications.

For engineers reviewing the R5F5111JAGFM#3A datasheet, R5F5111JAGFM#3A pinout, R5F5111JAGFM#3A application, or R5F5111JAGFM#3A equivalent, key selection criteria include its 16 KB flash / 8 KB RAM configuration, USB OTG capability with BC support, 12-bit ADC timing (1.0 µs min conversion), low-power software standby mode (0.44 µA), and IEC 60730-compliant on-chip safety functions.

Technical Context

The R5F5111JAGFM#3A implements a CISC Harvard-architecture RX CPU core with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. Its clock system includes high-speed on-chip oscillator (32 MHz ±1%), PLL, sub-clock (32.768 kHz), and CAC for frequency accuracy monitoring.

Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) enables direct module triggering without CPU intervention, while the Data Transfer Controller (DTC) supports chain transfers triggered by 82 interrupt sources. The MCU supports IEC 60730 compliance via IWDT, CAC, and RAM test assist functions.

Key Specifications

Pinout & Package

Package: PLQP0064KB-A - 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5111JAGFM#3A, R5F5111JADFM#3A trades extended temperature rating for lower cost in milder environments, while R5F51113AGFM#3A provides RTC and larger memory at higher BOM cost - enabling trade-offs between thermal robustness, timekeeping capability, and code footprint.

Availability

R5F5111JAGFM#3A is available at Aetrix Electronics and suitable for industrial control, USB peripheral interface, and low-power sensor node applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F5111JAGFM#3A 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The RX111 Group targets cost-sensitive, low-power embedded applications demanding USB connectivity, analog integration, and functional safety - with R5F5111JAGFM#3A optimized for compact designs needing minimal memory footprint and extended temperature operation.

FAQ

What is the maximum operating frequency and CPU performance of the R5F5111JAGFM#3A?

The R5F5111JAGFM#3A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core features a five-stage pipeline, 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations, and ultra-compact variable-length instruction encoding - enabling efficient code density and deterministic real-time execution in the R5F5111JAGFM#3A.

Does the R5F5111JAGFM#3A include a real-time clock (RTC) and what modes does it support?

No, the R5F5111JAGFM#3A does not include an RTC module. Per Table 1.2 in the datasheet, RTC support is explicitly omitted in all 64-pin RX111 variants with "J" memory coding (16 KB flash), including R5F5111JAGFM#3A. RTC is available only in higher-memory variants (e.g., R5F51113AGFM#3A and above). This omission reduces die size and cost for applications where calendar/time-of-day tracking is unnecessary.

What USB capabilities does the R5F5111JAGFM#3A provide, and are they fully integrated?

The R5F5111JAGFM#3A integrates a complete USB 2.0 full-speed (12 Mbps) host/function/OTG module with on-chip transceiver, supporting isochronous transfers and Battery Charger (BC) detection. No external PHY or level-shifting components are required. The R5F5111JAGFM#3A implements both device and host stacks in firmware, and OTG operation is enabled via USB0_ID pin detection - making it self-sufficient for dual-role USB connectivity.

What low-power modes are available on the R5F5111JAGFM#3A, and what is the lowest achievable current?

The R5F5111JAGFM#3A supports three low-power modes: sleep, deep sleep, and software standby. Its lowest active-quiescent current is 0.44 µA in software standby mode, with full retention of RAM, RTC (if present), and IWDT state. Recovery time from this mode is 4.8 µs - enabling rapid wake-up for time-critical event handling while minimizing energy consumption in battery-operated systems using the R5F5111JAGFM#3A.

Is the R5F5111JAGFM#3A qualified for IEC 60730 functional safety compliance?

Yes, the R5F5111JAGFM#3A includes hardware features required for IEC 60730 Class B compliance: independent watchdog timer (IWDT) with dedicated 15 kHz oscillator, clock frequency accuracy measurement circuit (CAC), and RAM test assist functions. These are documented in the datasheet's "On-chip functions for IEC 60730 compliance" section and enable systematic safety mechanisms without external components - supporting certification efforts for the R5F5111JAGFM#3A in household and industrial appliances.