Renesas R5F100ACGSP#10

Overview

R5F100ACGSP#10 from Renesas is a 30-pin LSSOP-packaged 16-bit RL78/G13 microcontroller with 16 KB flash, 2 KB RAM, and 4 KB data flash, operating from 1.6 V to 5.5 V across –40°C to +105°C industrial temperature range. It delivers 41 DMIPS at 32 MHz, integrates RTC, 10-bit ADC (6 channels), UART/SPI/I²C interfaces, and ultra-low-power HALT/STOP/SNOOZE modes - deployed in battery-powered industrial sensors and smart metering front-ends.

For engineers reviewing the R5F100ACGSP#10 datasheet, R5F100ACGSP#10 pinout, R5F100ACGSP#10 application, or R5F100ACGSP#10 equivalent, key selection criteria include its G-grade industrial temp rating, 30-pin LSSOP package with 0.65-mm pitch, integrated data flash for parameter storage, low-voltage operation down to 1.6 V, and hardware RTC with calendar/alarm functions.

Technical Context

The R5F100ACGSP#10 implements the RL78 CPU core with 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 features on-chip debug, self-programming flash with boot swap and flash shield window, and background operation (BGO) for data flash rewriting while executing code from program memory.

Power management includes an on-chip POR circuit, 14-level voltage detector (LVD) with interrupt/reset options, and multiple low-power modes: HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), and SNOOZE. Peripheral integration includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with 99-year calendar, and watchdog timer with dedicated low-speed oscillator.

Key Specifications

Pinout & Package

Package: 30-pin plastic LSSOP (7.62 mm × 5.3 mm, 0.65-mm pitch), JEDEC MS-013AC compliant, surface-mount compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100BCGSP#10, the R5F100ACGSP#10 trades flash capacity for lower unit cost in fixed-function deployments; compared with R5F101ACGSP#10, it provides essential data flash for field-configurable devices without adding external components or layout complexity.

Availability

R5F100ACGSP#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter front-ends, and HVAC zone controllers requiring stable component supply, long-term lifecycle assurance, and G-grade temperature qualification.

Supply support for R5F100ACGSP#10 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 family targets cost-sensitive, ultra-low-power general-purpose applications - designed for rapid development of battery-operated and energy-efficient industrial controls with minimal external components.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F100ACGSP#10?

The R5F100ACGSP#10 operates at up to 32 MHz, delivering 41 DMIPS (Dhrystone MIPS) performance. This enables deterministic real-time control in applications such as motor commutation, sensor fusion, and protocol stack processing. Its RL78 CPU core uses a 3-stage pipeline and supports variable instruction timing - from 0.03125 μs at full speed to 30.5 μs in ultra-low-speed 32.768 kHz mode - allowing dynamic trade-offs between latency and power.

Does the R5F100ACGSP#10 include on-chip data flash, and what are its endurance and voltage requirements?

Yes, the R5F100ACGSP#10 integrates 4 KB of on-chip data flash rated for 1,000,000 write/erase cycles (typical). It supports background operation (BGO), enabling code execution from program memory while rewriting data flash. Voltage requirements for data flash programming are VDD = 1.8 V to 5.5 V - matching the device's main supply range and eliminating need for auxiliary programming voltages.

What low-power modes does the R5F100ACGSP#10 support, and what is the lowest achievable current draw?

The R5F100ACGSP#10 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified across the full –40°C to +105°C industrial temperature range. This makes the R5F100ACGSP#10 ideal for battery-backed applications requiring decades of operation, such as utility metering or environmental monitoring nodes where wake-up events are infrequent and time-critical.

Is the R5F100ACGSP#10 pin-compatible with other RL78/G13 variants in the same package?

Yes, all RL78/G13 devices in the 30-pin LSSOP package (e.g., R5F100BCGSP#10, R5F101ACGSP#10) share identical pinouts and electrical characteristics. This allows drop-in replacement for flash/RAM scaling or data flash inclusion/exclusion without PCB redesign - provided software accounts for memory map differences and peripheral enablement.

What serial communication interfaces are available on the R5F100ACGSP#10, and are they hardware-supported?

The R5F100ACGSP#10 provides hardware-accelerated CSI (SPI-compatible), UART (with LIN bus support), and I²C interfaces - all implemented in dedicated peripheral modules, not bit-banged. It supports up to 2 CSI channels, 2 UART channels, and 3 I²C channels, with configurable pins and independent clock sources. This enables concurrent use of multiple protocols - for example, SPI to an ADC, UART to a modem, and I²C to a temperature sensor - without CPU overhead.