Renesas R5F12067GSP#50

Overview

R5F12067GSP#50 from Renesas Electronics is a 20-pin, industrial-grade RL78/G15 16-bit microcontroller with 4 KB code flash, 1 KB RAM, and 1 KB data flash. It operates from 2.4 V to 5.5 V, supports −40°C to +105°C ambient temperature (G-grade), and integrates an 8/10-bit 11-channel ADC, dual comparators, UART, two simplified I²C interfaces, two CSI (SPI-compatible) channels, and eight 16-bit timer channels - deployed in smart sensor nodes and industrial control modules.

For engineers reviewing the R5F12067GSP#50 datasheet, R5F12067GSP#50 pinout, R5F12067GSP#50 application, or R5F12067GSP#50 equivalent, key selection considerations include its LSSOP-20 package with 0.65-mm pitch, G-grade thermal rating, 4 KB flash capacity (vs. 8 KB variants), and full peripheral support including VCOUT1, ANI10, and dual IICA channels - critical for deterministic real-time sensing and low-power HMI subsystems.

Technical Context

The R5F12067GSP#50 implements the RL78-S2 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.0625 μs at 16 MHz up to 1.0 μs at 1 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 support (X1/X2, 1–12 MHz).

Peripheral integration includes TAU0 timer array (8 channels), SAU0 serial array unit (2 channels), IICA0 (I²C master/slave), CSI00/CSI01 (SPI-compatible), 12-bit interval timer, watchdog timer, and on-chip debug via TOOL0/TOOLRxD/TOOLTxD pins - all mapped to dedicated I/O ports P00–P07, P20–P23, P40–P41, and P121–P125 with programmable pull-up and N-ch open-drain capability.

Key Specifications

Pinout & Package

Package: 20-pin LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, tape-and-reel (#50 packaging specification).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F12067GSP#50, R5F12068GSP#50 offers double flash capacity without altering layout or thermal design, while R5F12047GSP#50 reduces pin count and analog resources - enabling tiered product families with shared firmware architecture but differentiated feature sets.

Availability

R5F12067GSP#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, programmable logic relays, and motor health monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F12067GSP#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/G15 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, thermally demanding industrial control and sensing applications - balancing performance, integration, and energy efficiency in compact packages.

FAQ

What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F12067GSP#50?

The R5F12067GSP#50 features a high-speed on-chip oscillator selectable from 1 MHz to 16 MHz. At −20°C to +85°C, its frequency accuracy is ±1.0% (G-grade specification). This eliminates the need for external crystals in many applications while maintaining timing integrity for UART communication and ADC sampling clocks.

How many analog input channels does R5F12067GSP#50 support, and what reference options are available?

The R5F12067GSP#50 supports 11 analog input channels (ANI0–ANI10) with 8/10-bit resolution. It provides internal reference voltages (0.815 V TYP. for IVREF0 and IVREF1) and allows external reference selection for both comparators - enabling precision ratiometric measurements across varying supply conditions.

Does R5F12067GSP#50 support in-system programming and debug without external tools?

Yes, the R5F12067GSP#50 includes an on-chip debug function accessible via TOOL0, TOOLRxD, and TOOLTxD pins. This enables full in-circuit debugging, flash programming, and real-time trace without requiring JTAG adapters - reducing development cost and accelerating firmware validation cycles.

What low-power modes are available on R5F12067GSP#50, and what is typical current draw?

The R5F12067GSP#50 supports HALT and STOP modes. Operating current is specified at 54 µA/MHz at TA = 125°C. In STOP mode, current drops to sub-microampere levels - making it suitable for battery-powered industrial sensors with multi-year deployment requirements.

Is R5F12067GSP#50 pin-compatible with other RL78/G15 variants in the same package?

Yes, all RL78/G15 devices in the 20-pin LSSOP package (e.g., R5F12067GSP#50, R5F12068GSP#50) share identical pinouts and electrical characteristics. Firmware and PCB designs can be reused across flash variants - simplifying product family scaling and inventory management.