Renesas R5F100JDDFA#X0

Overview

R5F100JDDFA#X0 from Renesas is a 52-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 64 KB flash, 4 KB data flash, 4 KB RAM, 10-bit ADC (16 channels), and real-time clock - optimized for low-power industrial control systems operating from 1.6 V to 5.5 V.

For engineers reviewing the R5F100JDDFA#X0 datasheet, R5F100JDDFA#X0 pinout, R5F100JDDFA#X0 application, or R5F100JDDFA#X0 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade, integrated LIN-capable UART, ultra-low power STOP mode (0.57 μA), and on-chip debug support for rapid firmware validation.

Technical Context

The R5F100JDDFA#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, selectable 1–32 MHz) and dedicated low-speed oscillator for RTC and watchdog.

Its peripheral set includes 8× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with calendar/alarm, 2× DMA channels, and serial interfaces - CSI (SPI-like), UART/LIN (2 channels), and I²C (up to 10 channels) - all configurable via register-based control without external glue logic.

Key Specifications

Pinout & Package

Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch, exposed pad not present, RoHS-compliant matte tin lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100JDDFA#X0, R5F100JDFDA#X0 omits flash security locking but retains identical power/performance; R5F101JDDFA#X0 removes data flash entirely, reducing cost and simplifying qualification for fixed-parameter deployments.

Availability

R5F100JDDFA#X0 is available at Aetrix Electronics and suitable for industrial automation, building control, and portable medical devices requiring stable component supply across extended product lifecycles.

Supply support for R5F100JDDFA#X0 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, and power solutions for automotive, industrial, and IoT markets.

The RL78/G13 product line delivers true low-power performance for general-purpose embedded control, targeting cost-sensitive industrial and consumer applications needing robust integration and long-term supply assurance.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F100JDDFA#X0?

The R5F100JDDFA#X0 operates up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS at 66 μA/MHz typical active current. At full speed, this equates to ~2.1 mA total supply current, verified under VDD = 3.3 V and TA = 25°C conditions per R01DS0131EJ0380 Rev.3.80.

Does the R5F100JDDFA#X0 support hardware debugging, and what interface does it use?

Yes, the R5F100JDDFA#X0 supports on-chip debugging via dedicated TOOLRxD, TOOLTxD, and TOOLCLK pins (P11, P12, P13), enabling full SWD/JTAG functionality without external debug probes. The R5F100JDDFA#X0 integrates Renesas' E1/E20 emulator interface compliant with CS+ and e2 studio IDEs.

How many ADC channels does the R5F100JDDFA#X0 provide, and what reference options are available?

The R5F100JDDFA#X0 provides 16 analog input channels for its 10-bit ADC. Reference options include external VDD/VSS, internal 1.45 V bandgap reference, or differential AVREFP/AVREFM inputs - all selectable per-channel via ADPC register settings in the R5F100JDDFA#X0 datasheet Section 23.3.2.

Is the R5F100JDDFA#X0 qualified for industrial temperature range, and what is its guaranteed operating specification?

Yes, the R5F100JDDFA#X0 is rated for industrial operation from -40°C to +85°C (D-grade), with all electrical specifications - including flash write endurance, ADC linearity, and oscillator accuracy (±1.0%) - fully guaranteed across this range per R01DS0131EJ0380 Rev.3.80 Section 1.1 and Table 1-2.

What packaging and reel specifications apply to the R5F100JDDFA#X0 ordering code?

The R5F100JDDFA#X0 uses a 52-pin LQFP package (10 mm × 10 mm, 0.65 mm pitch) supplied in embossed tape per JEDEC standard. The #X0 suffix indicates 1,000-unit reels with EIA-481-D compliance, moisture sensitivity level (MSL) 3, and dry pack with desiccant per Renesas packaging specification PLQP0052JA-A.