Renesas R4F2113DBG#U0

Overview

R4F2113DBG#U0 from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2113 Group, featuring a 27-MHz max CPU clock, 128 KB on-chip flash memory, 8 KB RAM, and integrated peripherals including TPU (16-bit timer pulse unit), SCI (serial communication interface), WDT (watchdog timer), and LVD (low-voltage detection). It targets industrial control panels requiring deterministic real-time response and embedded motor drive interfaces.

For engineers reviewing the R4F2113DBG#U0 datasheet, R4F2113DBG#U0 pinout, R4F2113DBG#U0 application, or R4F2113DBG#U0 equivalent, key selection criteria include its 100-pin LQFP package, H8S/2100 Series instruction set compatibility, 3.3 V ±10% supply operation, and support for both single-chip and minimum system modes with external bus expansion capability.

Technical Context

The R4F2113DBG#U0 implements the H8S/2100 Series CPU core with 32-bit internal data paths and 24-bit address space, supporting 16-bit fixed-length instructions. It integrates a programmable CPG (clock pulse generator) with PLL-based frequency multiplication, enabling flexible clock source selection between crystal, ceramic resonator, or external clock input.

Its peripheral set includes two 16-bit TPU channels with PWM output capability, one full-duplex SCI with framing error detection, and dual independent LVD circuits (LVD0/LVD1) with selectable trip points and interrupt generation. Reset handling supports power-on reset, watchdog timer reset, and low-voltage detection reset with source flag latching in RSTFR.

Key Specifications

Pinout & Package

The R4F2113DBG#U0 is housed in a 100-pin LQFP package with exposed thermal pad, rated for JEDEC MS-026D compliance and RoHS-compliant lead-free finish. Pin assignments are defined across four functional groups: power/ground, clock/reset, peripheral I/O multiplexing, and external bus interface (address/data/control).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R4F2113DBG#U0, the R4F2113DVP#U0 offers identical functionality but differs in package thermal performance and moisture sensitivity, while the R4F2112DBG#U0 trades memory capacity and safety features for lower unit cost-making it viable only in non-safety-critical, memory-constrained designs.

Availability

R4F2113DBG#U0 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control boards, building automation gateways, and factory floor HMI controllers requiring stable component supply across multi-year production cycles.

Supply support for R4F2113DBG#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The H8S/2100 Series-including R4F2113DBG#U0-was designed for deterministic real-time control in resource-constrained embedded systems where code density, interrupt latency, and peripheral integration outweigh raw processing throughput.

FAQ

What is the maximum operating frequency of the R4F2113DBG#U0?

The R4F2113DBG#U0 supports a maximum CPU clock frequency of 27 MHz when using the on-chip PLL with an external 4.5 MHz crystal. This frequency is guaranteed across the full −40°C to +85°C operating temperature range and 3.3 V ±10% supply voltage. The R4F2113DBG#U0 achieves this via its integrated CPG block, which includes programmable dividers and a PLL multiplier stage optimized for low-jitter clock synthesis.

Does the R4F2113DBG#U0 support in-circuit debugging?

Yes, the R4F2113DBG#U0 includes a single-wire background debugger (BDM) interface compliant with Renesas' standard debug protocol. This allows full non-intrusive debugging-including breakpoints, watchpoints, and real-time register/memory inspection-without requiring dedicated debug pins beyond the shared RESET pin. The R4F2113DBG#U0 debug engine operates independently of the main CPU clock, enabling reliable access even during low-power stop modes.

What peripheral modules are integrated into the R4F2113DBG#U0?

The R4F2113DBG#U0 integrates a 16-bit TPU with four independent channels, one full-duplex SCI, a watchdog timer (WDT), dual low-voltage detection (LVD0/LVD1) circuits, a clock pulse generator (CPG), and an interrupt controller supporting up to 128 sources. These peripherals are mapped into the H8S/2100 Series memory space and controlled via dedicated SFRs. No external peripheral ICs are required for basic real-time control tasks in the R4F2113DBG#U0.

Is the R4F2113DBG#U0 pin-compatible with other H8S/2113 variants?

Yes, the R4F2113DBG#U0 shares identical pin assignment and electrical characteristics with all members of the H8S/2113 Group in the 100-pin LQFP package, including R4F2113DVP#U0 and R4F2112DBG#U0. Pin-to-pin compatibility extends to power, clock, reset, I/O, and peripheral signal locations. However, functional differences-such as flash size, RAM capacity, or LVD configuration-require firmware validation before substitution. The R4F2113DBG#U0 maintains full hardware compatibility within this family.

What is the recommended power supply configuration for the R4F2113DBG#U0?

The R4F2113DBG#U0 requires a clean, regulated 3.3 V ±10% supply delivered to all VCC pins, with separate 0.1 µF ceramic decoupling capacitors placed within 10 mm of each VCC–VSS pair. A bulk capacitor (4.7–10 µF tantalum or low-ESR aluminum) should be located near the package center. Power sequencing is not required, but VCC must stabilize before RESET is released. The R4F2113DBG#U0 draws ≤120 mA at 27 MHz and 85°C, necessitating thermal-aware PCB layout for sustained operation.