Renesas R5F12047GNA#00

Overview

R5F12047GNA#00 from Renesas Electronics is a 16-pin HWQFN-packaged RL78/G15 16-bit microcontroller with 4 KB code flash, 1 KB data flash, and 1 KB RAM, operating at 2.4–5.5 V. It integrates an 8-channel 16-bit timer, 7-channel 8/10-bit ADC, dual comparators, UART, two simplified I²C (CSI) interfaces, and supports industrial temperature range −40°C to +105°C for motor control and sensor interface applications.

For engineers reviewing the R5F12047GNA#00 datasheet, R5F12047GNA#00 pinout, R5F12047GNA#00 application, or R5F12047GNA#00 equivalent, key selection criteria include its 16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) footprint, 4 KB flash capacity, dual comparator support, 7-channel analog input capability, and G-grade industrial temperature qualification.

Technical Context

The R5F12047GNA#00 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution time of 0.0625 μs at 16 MHz using the high-speed on-chip oscillator. Its clock system includes selectable 1–16 MHz high-speed on-chip oscillator (±1.0% accuracy at TA = −20 to +85°C), 15 kHz low-speed on-chip oscillator, and external crystal (X1/X2) or EXCLK input up to 12 MHz.

It features a peripheral-rich architecture: TAU0 timer array (8 channels), SAU0 serial array unit supporting CSI00/CSI01 and IIC00/IIC01, on-chip debug via TOOL0/TOOLRxD/TOOLTxD, and programmable clock/buzzer output (PCLBUZ0). The device supports HALT and STOP low-power modes and includes selectable power-on-reset (SPOR) with four voltage thresholds.

Key Specifications

Pinout & Package

Package: 16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) with exposed thermal pad requiring PCB soldering to non-electrical copper area per datasheet Remark 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F12047GNA#00, R5F12048GNA#00 provides double flash capacity without changing footprint or firmware compatibility, while R5F12047GSP#00 offers identical functionality in a larger, more manufacturable SSOP package - enabling design reuse across HWQFN and SSOP platforms.

Availability

R5F12047GNA#00 is available at Aetrix Electronics and suitable for industrial motor control, sensor interface modules, programmable timers, and smart power outlets requiring stable component supply and long-term industrial temperature qualification.

Supply support for R5F12047GNA#00 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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G15 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust analog integration, compact packaging, and extended temperature operation.

FAQ

What is the maximum operating frequency and oscillator accuracy of the R5F12047GNA#00?

The R5F12047GNA#00 supports a maximum high-speed on-chip oscillator frequency of 16 MHz with ±1.0% accuracy over −20°C to +85°C (G-grade specification). It also supports external crystal (X1/X2) up to 12 MHz or EXCLK input up to 16 MHz. The minimum instruction execution time is 0.0625 μs at 16 MHz operation, confirmed in the RL78/G15 datasheet Rev.1.40 Section 1.1.

Does the R5F12047GNA#00 support in-system programming and debug interfaces?

Yes, the R5F12047GNA#00 includes an on-chip debug function accessible via TOOL0, TOOLRxD, and TOOLTxD pins. It supports self-programming of both code and data flash memory without boot swap. However, Renesas cautions against using the debug function in mass production due to flash rewrite endurance limits - the R5F12047GNA#00 is intended for development and evaluation use only in that context.

How many analog input channels and comparators does the R5F12047GNA#00 provide?

The R5F12047GNA#00 provides 7 analog input channels (ANI0–ANI6) for its 8/10-bit A/D converter and includes 2 independent comparators (COMP0 and COMP1), each supporting internal (0.815 V) or external reference voltage selection. This configuration is explicitly confirmed for 16-pin RL78/G15 devices including R5F12047GNA#00 in Table 1-4 and Section 1.6 of the datasheet.

What is the package type and thermal pad requirement for the R5F12047GNA#00?

The R5F12047GNA#00 uses a 16-pin HWQFN package (3 × 3 mm, 0.5-mm pitch) with an exposed die pad. As specified in datasheet Remark 3 (Page 9), this pad must be soldered to a plated PCB area with no electrical connections - serving solely as a thermal path, not a ground or power node. This requirement ensures reliable thermal performance in industrial ambient conditions.

Can the R5F12047GNA#00 operate across the full industrial temperature range without derating?

Yes, the R5F12047GNA#00 is rated for continuous operation from −40°C to +105°C (G-grade) with no voltage or frequency derating required. All electrical specifications - including flash read/write, ADC performance, oscillator accuracy, and I/O drive strength - are guaranteed across this range per Section 1.1 and Table 1-1 of the datasheet. The ±1.0% oscillator accuracy applies specifically within −20°C to +85°C, with ±1.5% tolerance at temperature extremes.