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Renesas Electronics R5F51103ADNF#20 — Microcontrollers & Processors (MCU / MPU / DSP)

R5F51103ADNF#20 – Renesas RX110 32-bit MCU, 32 MHz

MPNR5F51103ADNF#20
End of Life

Renesas RX110 series, 32-Bit Single-Core MCU, RX core at 32 MHz, 64 KB (64K x 8) FLASH, 10K x 8 RAM, 28 I/O, I²C/SCI/SPI, 10-ch 12-bit ADC, -40°C to 85°C, 40-WFQFN Exposed Pad (40-HWQFN 6x6), Tray.

$2.41Ref. price · indicative, final on quote
Packaging40-WFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesRX110
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

R5F51103ADNF#20 specifications
ParameterValue
SeriesRX110
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed32MHz
PackageTray
RAM size10K x 8
Core size32-Bit Single-Core
PeripheralsDMA, LVD, POR, PWM, WDT
ConnectivityI²C, SCI, SPI
Number of i (O)28
Core processorRX
Case40-WFQFN Exposed Pad
Data convertersA/D 10x12b
Program memory size64KB (64K x 8)

Product details

RX110 core for sensor-node control

The R5F51103ADNF#20 is a 32-bit RX110 MCU running at 32 MHz, with 64 KB of on-chip flash and 10 KB of SRAM — enough headroom for a modest sensor-fusion or motor-control loop without external memory. It packs 28 general-purpose I/O, a 10-channel 12-bit ADC, and serial interfaces (I²C, SCI, SPI) in a compact 40-HWQFN (6x6 mm) package.

Frequently asked questions

Does R5F51103ADNF#20 have I²C and SPI interfaces?

Yes. The connectivity block includes I²C, SCI (serial communications interface), and SPI. The 28 I/O pins let you map these alongside the 10-channel ADC and PWM outputs without running out of pins.