Renesas R5F52106BDLK#U0

Overview

R5F52106BDLK#U0 from Renesas Electronics is a 32-bit RX CPU-based microcontroller operating at up to 50 MHz (78 DMIPS), featuring 256 KB on-chip flash, 32 KB SRAM, 8 KB data flash, 12-bit A/D converter (16 channels), 10-bit D/A converter (2 channels), RTC, ELC, MPC, and IEC60730 compliance functions - deployed in industrial control panels requiring deterministic real-time response and functional safety support.

For engineers reviewing the R5F52106BDLK#U0 datasheet, R5F52106BDLK#U0 pinout, R5F52106BDLK#U0 application, or R5F52106BDLK#U0 equivalent, key selection criteria include its 145-pin TFLGA package (7 × 7 mm, 0.5-mm pitch), full peripheral set including 144-pin-compatible timer/communication modules, deep software standby with RTC wake-up, and voltage operation down to 1.62 V at 20 MHz.

Technical Context

The R5F52106BDLK#U0 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dual clock domains: ICLK (system clock, up to 50 MHz) and PCLK (peripheral clock, up to 32 MHz), with independent PLL, sub-clock (32.768 kHz), and IWDT-dedicated oscillator sources.

Its event-driven architecture leverages the Event Link Controller (ELC) to trigger timer (MTU2/TPU), A/D conversion, and communication module operations directly via hardware events - eliminating CPU intervention during low-power sleep modes and enabling deterministic latency-critical timing sequences.

Key Specifications

Pinout & Package

Package: 145-pin TFLGA (PTLG0145KA-A), 7 × 7 mm body, 0.5-mm pitch, 0.75-mm height, RoHS-compliant matte tin finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52106BDFB#30 and R5F52106BDLJ#U0, the R5F52106BDLK#U0 delivers full peripheral complement including RTC, TPU, and 122 GPIO in the smallest 145-pin footprint - making it optimal for compact industrial controllers requiring time synchronization, encoder interfacing, and functional safety diagnostics.

Availability

R5F52106BDLK#U0 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and factory HMI applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F52106BDLK#U0 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RX210 Group targets cost-sensitive industrial and consumer applications needing high performance per watt, functional safety support, and rich analog/motor control peripherals - with R5F52106BDLK#U0 serving as the highest-feature-density variant in the 145-pin TFLGA form factor.

FAQ

What is the maximum operating frequency and voltage range supported by the R5F52106BDLK#U0?

The R5F52106BDLK#U0 operates at up to 50 MHz when supplied between 2.7 V and 5.5 V, 32 MHz at 1.8–2.7 V, and 20 MHz at 1.62–1.8 V. Its voltage-flexible design enables single-supply operation across wide industrial input ranges without external regulators - a key advantage for battery-backed or energy-harvesting systems where R5F52106BDLK#U0 maintains real-time functionality even during brownout conditions.

Does the R5F52106BDLK#U0 include hardware support for functional safety standards like IEC60730?

Yes, the R5F52106BDLK#U0 integrates dedicated hardware for IEC60730 Class B compliance, including self-diagnostic A/D converter tests, clock accuracy measurement circuit (CAC), independent watchdog timer (IWDT) validation, and RAM test assistance logic. These features are documented in the R5F52106BDLK#U0 datasheet and reduce external component count and firmware validation effort for safety-critical appliance and industrial control applications.

What package type and pin count does the R5F52106BDLK#U0 use, and how does it compare to other RX210 variants?

The R5F52106BDLK#U0 uses a 145-pin TFLGA package (PTLG0145KA-A, 7 × 7 mm, 0.5-mm pitch), the highest I/O count option in the RX210 family. Unlike 100-pin or 64-pin variants, it retains full peripheral sets including TPU, RTC, and 122 GPIO - making R5F52106BDLK#U0 uniquely suited for applications demanding encoder interfacing, time-stamped logging, and dense I/O without external expanders.

Can the R5F52106BDLK#U0 operate in low-power modes while maintaining RTC functionality?

Yes, the R5F52106BDLK#U0 supports deep software standby mode where the CPU, flash, and most peripherals are powered down while the RTC continues running from the 32.768 kHz sub-clock oscillator - enabling timekeeping and alarm-triggered wake-up with typical current consumption below 1 µA. This capability is confirmed in the R5F52106BDLK#U0 electrical characteristics table and is essential for battery-powered industrial loggers and security sensors.

What communication interfaces are available on the R5F52106BDLK#U0, and how many channels do they support?

The R5F52106BDLK#U0 provides up to 13 SCI channels (asynchronous/clock-synchronous/smart card), 1 I2C bus interface (400 kbps, SMBus compatible), and 1 RSPI channel (16 Mbps). All are accessible in the 145-pin package, with SCI0–SCI11 and SCI12 mapped to dedicated pins - allowing concurrent Modbus, CAN bridge, and sensor interface protocols without multiplexing constraints in the R5F52106BDLK#U0 design.