Renesas R5F101AAASP#50

Overview

R5F101AAASP#50 from Renesas is a 30-pin, 16 KB flash, data-flash-free RL78/G13 16-bit microcontroller with LSSOP package, operating at 1.6–5.5 V, delivering 41 DMIPS at 32 MHz and ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), used in battery-powered industrial sensors and smart metering interfaces.

For engineers reviewing the R5F101AAASP#50 datasheet, R5F101AAASP#50 pinout, R5F101AAASP#50 application, or R5F101AAASP#50 equivalent, key selection criteria include its 30-pin LSSOP-30 footprint, absence of on-chip data flash, -40°C to +85°C industrial temperature grade, and integrated 10-bit ADC with 6-channel analog input capability.

Technical Context

The R5F101AAASP#50 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer driven by a dedicated low-speed on-chip oscillator.

Its peripheral set includes up to 6-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 2–4 channel DMA controller, and serial interfaces comprising UART/LIN, simplified SPI (CSI), and I²C-configured across 16 I/O ports with N-ch open-drain, TTL input, and on-chip pull-up options.

Key Specifications

Pinout & Package

Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), JEDEC MO-153 compliant, surface-mountable with standard reflow profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100AAASP#50, the R5F101AAASP#50 trades data flash for lower cost and reduced test complexity; compared with R5F104BAASP#50, it offers proven stability and smaller memory footprint for mature, resource-constrained designs.

Availability

R5F101AAASP#50 is available at Aetrix Electronics and suitable for smart energy meters, industrial sensor nodes, home appliance controls, medical wearables, and battery-backed RTU applications requiring stable component supply across extended production lifecycles.

Supply support for R5F101AAASP#50 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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated general-purpose embedded systems where reliability and long-term supply assurance are critical.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F101AAASP#50?

The R5F101AAASP#50 operates at up to 32 MHz and delivers 41 DMIPS performance. This metric reflects its RL78 CPU core efficiency under benchmark conditions, enabling responsive real-time control in applications such as motor commutation and sensor fusion where deterministic timing is essential. The R5F101AAASP#50 achieves this while maintaining ultra-low power consumption.

Does the R5F101AAASP#50 include on-chip data flash memory?

No, the R5F101AAASP#50 does not include on-chip data flash memory. Per the RL78/G13 datasheet Section 1.2 and Table 1-1, the "101" prefix explicitly denotes devices without data flash. In contrast, "100"-series variants (e.g., R5F100AAASP#50) integrate 4 KB of data flash. The R5F101AAASP#50 relies on code flash for program storage only.

What package type and pin count does the R5F101AAASP#50 use?

The R5F101AAASP#50 uses a 30-pin plastic LSSOP package (7.62 mm, 0.65-mm pitch), identified by the "SP" suffix and "A" pin-count code in its ordering number. This JEDEC MO-153-compliant package supports automated assembly and provides adequate I/O density for compact control applications while maintaining thermal and mechanical robustness.

What are the supported low-power modes and their typical current consumption for the R5F101AAASP#50?

The R5F101AAASP#50 supports HALT, STOP, and SNOOZE modes. Its lowest active-consumption state is 66 μA/MHz during normal operation; in STOP mode with only RTC and LVD active, it draws just 0.57 μA. These values are measured at VDD = 3.0 V and TA = 25°C per the official datasheet, enabling multi-year battery life in always-on sensing applications.

Which analog peripherals are integrated into the R5F101AAASP#50?

The R5F101AAASP#50 integrates a 10-bit successive-approximation A/D converter with up to 6 analog input channels, internal 1.45 V reference voltage, and an on-chip temperature sensor. These features are confirmed in the RL78/G13 datasheet Section 1.1 and enable direct sensor interfacing without external references or signal conditioning in applications like environmental monitoring and power supply telemetry.