Renesas R5F12048MSP#30

Overview

R5F12048MSP#30 from Renesas Electronics is an RL78/G15 16-pin, 8 KB flash, 1 KB RAM, industrial-grade 16 MHz MCU operating from 2.4–5.5 V with −40°C to +125°C ambient rating. It integrates an 8/10-bit 7-channel ADC, dual comparators, 8-channel 16-bit timer array, UART, two simplified SPI (CSI) channels, two simplified I²C channels, and on-chip debug - deployed in motor control subsystems for HVAC actuators.

For engineers reviewing the R5F12048MSP#30 datasheet, R5F12048MSP#30 pinout, R5F12048MSP#30 application, or R5F12048MSP#30 equivalent, key selection criteria include its M-grade temperature range, SSOP-16 package with 0.65 mm pitch, 8 KB code flash with 1 KB data flash (1M rewrite cycles), and support for background-independent data flash writes only via software-controlled erase-before-write.

Technical Context

The R5F12048MSP#30 implements the RL78-S2 CPU core with a 3-stage CISC pipeline, enabling minimum instruction execution at 0.0625 μs (16 MHz). Its clock system combines selectable high-speed on-chip oscillator (1–16 MHz, ±1.0% accuracy at −20°C to +85°C), low-speed 15 kHz on-chip oscillator, and external crystal input (X1/X2, 1–12 MHz).

Power management includes HALT and STOP modes, selectable power-on-reset (SPOR) with four voltage thresholds (2.25–4.45 V), and true low-power operation down to 54 μA/MHz at TA = 125°C. Peripheral I/O redirection (PIOR) enables dynamic pin function remapping without hardware changes.

Key Specifications

Pinout & Package

Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65-mm pitch), RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F12047MSP#30 and R5F12048GSP#30, the R5F12048MSP#30 uniquely delivers full 8 KB flash capacity plus guaranteed operation up to +125°C - critical for sealed, convection-cooled motor drives and under-dash automotive modules where thermal derating is impractical.

Availability

R5F12048MSP#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and appliance HMI requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for R5F12048MSP#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RL78/G15 product line targets cost-optimized, ultra-low-power general-purpose microcontrollers for industrial sensors, motor drivers, and white goods - emphasizing thermal resilience, integrated analog, and toolchain compatibility with e² studio and CS+.

FAQ

What is the maximum operating frequency and clock source flexibility of the R5F12048MSP#30?

The R5F12048MSP#30 supports up to 16 MHz operation using its high-speed on-chip oscillator (±1.0% accuracy from −20°C to +85°C) or external crystal (1–12 MHz via X1/X2 pins). It also integrates a 15 kHz low-speed on-chip oscillator for watchdog and STOP mode timing. The R5F12048MSP#30 allows runtime switching between clock sources using the system clock control register (CKC), enabling dynamic power/performance trade-offs.

Does the R5F12048MSP#30 support in-system programming and debug without external tools?

Yes, the R5F12048MSP#30 includes an on-chip debug function accessible via TOOL0, TOOLRxD, and TOOLTxD pins - enabling full SWD-style debugging and flash programming using Renesas' E2 emulator or compatible debug probes. No external programmer is required for development, though mass-production programming should use dedicated flash writers to preserve write-cycle endurance.

How many analog input channels and comparator units does the R5F12048MSP#30 provide?

The R5F12048MSP#30 provides 7 analog input channels (ANI0–ANI6) supporting 8/10-bit A/D conversion with internal 0.815 V reference, and two independent analog comparators (IVCMP0 and IVCMP1) with selectable internal or external reference voltage inputs (IVREF0/IVREF1) and dedicated outputs (VCOUT0/VCOUT1).

What package type and pin count does the R5F12048MSP#30 use, and is it RoHS compliant?

The R5F12048MSP#30 uses a 16-pin plastic SSOP package (4.4 × 5.0 mm, 0.65-mm pitch) with lead-free, RoHS-compliant finish. The #30 packaging specification denotes tray packaging for LSSOP/SSOP/WDFN variants, and this device is specifically the SSOP variant per Renesas' ordering matrix.

Can the R5F12048MSP#30 execute code while rewriting data flash memory?

No, the R5F12048MSP#30 does not support background operation (BGO) for data flash. Code execution from flash memory is halted during data flash rewrite operations. The R5F12048MSP#30 requires careful firmware sequencing: copy critical routines to RAM, disable interrupts, erase block, then write - all while the CPU is not fetching from flash.