Renesas R5F10NPGDFB#10

Overview

R5F10NPGDFB#10 from Renesas is a 100-pin LFQFP 16-bit RL78/I1C microcontroller designed for electric AMI power meter applications. It integrates 128 KB code flash, 2 KB data flash, 8 KB RAM, hardware AES encryption, independent-power-supply RTC, and 24-bit ΔΣ A/D converter with four channels - all operating from 1.9 V to 5.5 V supply.

For engineers reviewing the R5F10NPGDFB#10 datasheet, R5F10NPGDFB#10 pinout, R5F10NPGDFB#10 application, or R5F10NPGDFB#10 equivalent, key selection criteria include ultra-low-power STOP/HALT/SNOOZE modes, ΔΣ ADC resolution for metrology-grade current/voltage sensing, AES-128/192/256 support for secure firmware updates, and LCD driver capability for integrated display in utility meters.

Technical Context

The R5F10NPGDFB#10 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz PLL) to 66.6 µs (15 kHz low-speed oscillator). It features dual-clock domains: main system clock (X1/EXCLK/HS-oscillator up to 24 MHz or PLL at 32 MHz) and independent subsystem clock (XT1/EXCLKS at 32.768 kHz) for RTC operation during VRTC backup.

Its peripheral set includes eight 16-bit timer channels, UART0–UART3 with IrDA support, three CSI interfaces, two I²C units (one full IICA0, two simplified IIC00/IIC10), 10-bit SAR ADC (6 channels), and a dedicated 24-bit ΔΣ ADC with internal reference and temperature sensor - all coordinated via Event Link Controller (ELC) and Data Transfer Controller (DTC) for autonomous low-CPU-load operation.

Key Specifications

Pinout & Package

Package: 100-pin plastic LFQFP (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10NPJDFB#10, the R5F10NPGDFB#10 trades flash capacity for lower unit cost and identical AES/RTC/ΔΣ ADC functionality; versus R5F10NMJDFB#10, it adds hardware AES and full 42-segment LCD drive - essential for certified secure AMI endpoints with integrated displays.

Availability

R5F10NPGDFB#10 is available at Aetrix Electronics and suitable for smart electricity meters, AMI gateway nodes, prepayment energy meters, and grid monitoring sensors requiring stable component supply across multi-year utility deployments.

Supply support for R5F10NPGDFB#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 industrial, automotive, and infrastructure markets.

The RL78/I1C product line targets electric utility applications, integrating metrology-grade analog peripherals, ultra-low-power operation, and hardware security to meet IEC/EN certification requirements for revenue-grade meters.

FAQ

What is the maximum operating frequency of the R5F10NPGDFB#10 CPU core?

The R5F10NPGDFB#10 supports a maximum CPU clock of 32 MHz via its on-chip PLL. This is confirmed in the datasheet Rev.2.31 Section 1.1, where "PLL clock" specifies 32 MHz selection - enabling minimum instruction execution time of 0.03125 µs. The high-speed on-chip oscillator also supports up to 24 MHz, and the middle-speed oscillator runs at 4 MHz.

Does the R5F10NPGDFB#10 include hardware AES acceleration?

Yes, the R5F10NPGDFB#10 includes a dedicated hardware AES circuit supporting GCM, ECB, and CBC cipher modes with 128-, 192-, and 256-bit key lengths. This is explicitly stated in the datasheet's "AES circuit" note (page 2) and confirmed in Table 1-1, which lists AES as "Mounted" for R5F10NPGDFB#10 - distinguishing it from non-AES variants like R5F11TLGDFB#10.

How many channels does the ΔΣ A/D converter have in the R5F10NPGDFB#10?

The R5F10NPGDFB#10 integrates a 24-bit ΔΣ A/D converter with four input channels (ΔΣ ADC0–ADC3), as specified in Section 1.1 "A/D converter" and verified in the 100-pin block diagram (page 12). Each channel supports differential inputs with dedicated ANIPx/ANINx pins, and the converter operates concurrently with CPU execution via background operation.

What is the RTC power supply configuration for the R5F10NPGDFB#10?

The R5F10NPGDFB#10 features an independent-power-supply RTC powered by the VRTC pin, which accepts 1.6 V minimum - separate from the main VDD domain. This allows continuous timekeeping during main power loss, as documented in Section 1.1 "Independent power supply RTC" and confirmed in the 100-pin pin identification table (page 9), where VRTC is defined as "RTC Power Supply".

Which package type and pin count does the R5F10NPGDFB#10 use?

The R5F10NPGDFB#10 uses a 100-pin plastic LFQFP package (14 × 14 mm, 0.5 mm pitch), as unambiguously indicated by the "P" in the part number suffix per Figure 1-1 (page 4) and confirmed in Table 1-1 (page 5), which lists R5F10NPGDFB#10 exclusively under the "100 pins" row with "100-pin plastic LFQFP (14 × 14 mm, 0.5 mm pitch)".