Renesas R4F2113NBG#U0

Overview

R4F2113NBG#U0 from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2113 Group, featuring an H8S/2000-series CPU core, 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 operates at up to 25 MHz and supports industrial control applications requiring deterministic real-time response and embedded I/O management.

For engineers reviewing the R4F2113NBG#U0 datasheet, R4F2113NBG#U0 pinout, R4F2113NBG#U0 application, or R4F2113NBG#U0 equivalent, key selection criteria include its 100-pin LQFP package, 3.3 V operation, 16-bit data bus width, interrupt controller with 128 vector entries, and support for both single-chip and expanded bus modes - critical for legacy industrial equipment upgrades and motor control firmware consolidation.

Technical Context

The R4F2113NBG#U0 implements the H8S/2000 CPU architecture with 32-bit internal data paths, 24-bit address space, and instruction set compatibility across the H8S/2100 Series. It integrates a clock pulse generator (CPG) supporting external crystal, ceramic resonator, or external clock input, and includes dual low-voltage detection circuits (LVD0/LVD1) with independent trip-point configuration and reset/interrupt output options.

Peripheral subsystems include a 16-bit TPU with 8 channels supporting PWM, input capture, and output compare; two full-duplex SCIs with baud rate generators and framing error detection; and a watchdog timer with windowed operation mode. Memory protection is enforced via a 4-region memory management unit (MMU) with write-protection capability for flash and RAM segments.

Key Specifications

Pinout & Package

The R4F2113NBG#U0 is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad, compliant with JEDEC MO-152AC. Pin assignments support multiplexed I/O, dedicated reset and clock inputs, and configurable bus interface signals for single-chip or expanded memory mode operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F2113NBG#U0, R4F2113NBP#U0 offers identical functionality in a mechanically incompatible package, while R5F21138NDSP delivers architectural upgrades at the cost of full redesign - making R4F2113NBG#U0 optimal for cost-sensitive, footprint-constrained industrial control upgrades where CAN is unnecessary.

Availability

R4F2113NBG#U0 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, brushless DC motor controllers, energy meter communication hubs, and factory automation safety monitors requiring stable component supply and long-term lifecycle support.

Supply support for R4F2113NBG#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, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The H8S/2113 Group, including R4F2113NBG#U0, was designed for deterministic real-time control in cost-sensitive industrial equipment - emphasizing robust peripheral integration, flash endurance, and wide-temperature reliability without requiring external memory or complex toolchains.

FAQ

What is the maximum operating frequency of the R4F2113NBG#U0?

The R4F2113NBG#U0 supports a maximum system clock frequency of 25 MHz when using an external crystal or clock source. This frequency is achieved via the on-chip clock pulse generator (CPG), which allows division and multiplication of input clocks. At 25 MHz, the R4F2113NBG#U0 delivers a 40 ns instruction cycle time for critical real-time tasks. The actual achievable frequency depends on supply voltage stability and ambient temperature, with full specification guaranteed across −40°C to +85°C.

Does the R4F2113NBG#U0 include on-chip debug capability?

Yes, the R4F2113NBG#U0 includes a dedicated on-chip background debugger (BDM) interface accessible via pins BKGD and RESET. This enables non-intrusive real-time debugging, including breakpoints, memory inspection, and register tracing without requiring JTAG hardware. The BDM interface is fully supported by Renesas' E10A-USB and E20 debug probes, and the R4F2113NBG#U0's debug ROM contains bootloader and communication firmware to simplify firmware updates in the field.

What peripheral modules are integrated into the R4F2113NBG#U0?

The R4F2113NBG#U0 integrates a 16-bit timer pulse unit (TPU) with eight channels, two serial communication interfaces (SCI0 and SCI1), a watchdog timer (WDT) with window mode, dual low-voltage detection (LVD0/LVD1) circuits, an 8-channel 10-bit ADC (in some variants - not present in R4F2113NBG#U0 per H8S/2113 Group documentation), and a bus controller (BSC) for expanded memory access. Notably, the R4F2113NBG#U0 does not include an on-chip ADC; external conversion must be handled via GPIO or SCI-connected sensors.

Is the R4F2113NBG#U0 pin-compatible with other H8S/2113 family members?

The R4F2113NBG#U0 shares the same 100-pin LQFP package and pin assignment with other members of the H8S/2113 Group that specify the 'NBG' suffix, such as R4F2113NBD#U0 (64 KB flash variant). However, it is not pin-compatible with PQFP-packaged variants like R4F2113NBP#U0 due to differing pitch and pad layout. Functional pin mapping is consistent across the NBG series, but users must verify memory size, peripheral enable bits, and fuse settings in software when substituting within the same package family.

What is the flash memory endurance and data retention specification for the R4F2113NBG#U0?

The R4F2113NBG#U0 features 128 KB of on-chip flash memory rated for 10,000 write/erase cycles per block and 20-year data retention at +85°C. Each 1 KB block can be erased independently, and programming occurs in 128-bit words. The flash controller includes built-in error detection (ECC on read) and write-protection registers to prevent accidental modification of boot code. These specifications are validated per Renesas' H8S/2113 Group qualification standards and apply under recommended operating conditions (3.3 V, −40°C to +85°C).