Renesas R5F12048GNA#20

Overview

R5F12048GNA#20 from Renesas Electronics is an RL78/G15 16-pin HWQFN microcontroller with 8 KB code flash, 1 KB RAM, and 1 KB data flash, operating at 2.4–5.5 V supply voltage. It integrates an RL78 CPU core (3-stage pipeline), 8-channel 16-bit timer array, 11-channel 8/10-bit A/D converter, dual comparators, UART, two simplified I²C interfaces, two CSI (SPI-compatible) channels, and supports industrial-grade operation up to +105°C.

For engineers reviewing the R5F12048GNA#20 datasheet, R5F12048GNA#20 pinout, R5F12048GNA#20 application, or R5F12048GNA#20 equivalent, key selection criteria include its 16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) package, G-grade temperature range (−40°C to +105°C), on-chip high-speed oscillator accuracy of ±1.0% (−20°C to +85°C), and support for background-independent data flash rewrites (1M cycles).

Technical Context

The R5F12048GNA#20 implements the RL78-S2 CPU core with CISC architecture, 1 MB address space, and configurable instruction execution time (0.0625 μs at 16 MHz to 1.0 μs at 1 MHz). Its clock system combines a selectable high-speed on-chip oscillator (1–16 MHz), low-speed on-chip oscillator (15 kHz), and external crystal interface (X1/X2, 1–12 MHz) with EXCLK input support.

Peripheral integration includes TAU0 timer array (8 channels), SAU0 serial array unit (2 channels supporting CSI/I²C/UART), dual analog comparators with internal/external reference selection, and a 12-bit interval timer. Power management features HALT and STOP modes, selectable power-on-reset (SPOR) with four voltage thresholds, and true low-power operation down to 54 µA/MHz at 125°C ambient.

Key Specifications

Pinout & Package

Package: 16-pin HWQFN (3 × 3 mm, 0.5-mm pitch), RoHS-compliant, with exposed die pad requiring connection to non-electrical PCB copper area per Renesas design guidance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F12047GNA#20, the R5F12048GNA#20 provides double code flash capacity for feature-rich firmware, while versus R5F12048GSP#20 it delivers superior thermal performance and 30% smaller PCB area - critical for space-constrained industrial modules.

Availability

R5F12048GNA#20 is available at Aetrix Electronics and suitable for motor control, industrial sensor hubs, smart energy metering, and factory automation I/O modules requiring stable component supply across extended temperature ranges.

Supply support for R5F12048GNA#20 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 product line delivers ultra-low-power, cost-optimized MCUs targeting industrial control, sensor nodes, and appliance applications - emphasizing robustness, integrated analog, and simplified development.

FAQ

What is the maximum operating frequency of the R5F12048GNA#20?

The R5F12048GNA#20 supports a maximum system clock frequency of 16 MHz using its high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.0625 μs. External crystal (X1/X2) operation is rated up to 12 MHz, and EXCLK input supports up to 16 MHz. All timing specifications assume VDD = 2.4–5.5 V and TA ≤ +105°C.

Does the R5F12048GNA#20 support in-system programming of its flash memory?

Yes, the R5F12048GNA#20 supports full in-system programming of both code flash (4–8 KB) and data flash (1 KB) without requiring external programming hardware. Self-programming is implemented via on-chip firmware routines; however, the device lacks boot swap functionality and flash shield window protection, so secure firmware updates require application-level validation.

What are the analog input capabilities of the R5F12048GNA#20?

The R5F12048GNA#20 integrates an 8/10-bit successive approximation A/D converter with 11 dedicated analog input channels (ANI0–ANI10). It supports internal reference voltage (0.815 V TYP.) and accepts VDD as reference. Input voltage range is 0 V to VDD, and conversion is compatible with 2.4–5.5 V supply operation - enabling direct measurement of sensors across common industrial voltage rails.

How does the R5F12048GNA#20 handle power management in low-power applications?

The R5F12048GNA#20 implements multiple low-power states including HALT and STOP modes, achieving industry-leading 54 µA/MHz active current at 125°C. Its selectable power-on-reset (SPOR) circuit offers four voltage thresholds (2.25–4.45 V), and the 15 kHz low-speed on-chip oscillator enables watchdog timer operation during deep sleep - allowing rapid wake-up with minimal energy overhead.

Is the R5F12048GNA#20 pin-compatible with other RL78/G15 variants in the same package?

Yes, the R5F12048GNA#20 shares identical pinout and electrical characteristics with all other 16-pin HWQFN RL78/G15 devices, including R5F12047GNA#20 (4 KB flash) and R5F12048GNA#60 (same specs, different packaging specification). Firmware and PCB designs are interchangeable across these variants - only flash size and ordering part number differ.