Renesas R5F100PJAFB#X0

Overview

R5F100PJAFB#X0 from Renesas is a 100-pin LFQFP (0.5-mm pitch), 256 KB flash, 8 KB data flash, 20 KB RAM RL78/G13 16-bit MCU operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), used in industrial motor control and smart sensor nodes.

For engineers reviewing the R5F100PJAFB#X0 datasheet, R5F100PJAFB#X0 pinout, R5F100PJAFB#X0 application, or R5F100PJAFB#X0 equivalent, key selection criteria include its integrated RTC with calendar support, 12-bit interval timer, 16-channel 10-bit ADC with internal temperature sensor, dual UART/LIN interfaces, and hardware multiplier/divider for real-time control math.

Technical Context

The R5F100PJAFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). It integrates DMA with 4 channels and 2-clock transfer latency between SFR and RAM.

Its peripheral set includes up to 16× 16-bit timers, one real-time clock with alarm and calendar correction, watchdog timer with dedicated low-speed oscillator, and serial interfaces: CSI (SPI-compatible), UART/LIN (2 channels), and I²C (up to 10 channels).

Key Specifications

Pinout & Package

Package: 100-pin LFQFP, 14 mm × 14 mm, 0.5-mm pitch, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100PJAFB#X0, R5F101PJAFB#X0 removes data flash to reduce cost and die size but sacrifices in-field reprogramming capability, while R5F104PJAFB#X0 adds memory headroom and ADC resources at the expense of higher static current and bill-of-materials cost.

Availability

R5F100PJAFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UIs, and PLC I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R5F100PJAFB#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 industrial, automotive, and IoT markets.

The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications, balancing performance, energy efficiency, and integration for rapid development of battery-operated and industrial control systems.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F100PJAFB#X0?

The R5F100PJAFB#X0 operates at up to 32 MHz using its high-accuracy on-chip oscillator (±1.0 %), achieving 41 DMIPS performance. This benchmark reflects integer instruction throughput under standard EEMBC CoreMark methodology and is validated across the full industrial temperature range (−40°C to +105°C) for the G-grade variant.

Does the R5F100PJAFB#X0 support hardware-based LIN bus communication?

Yes, the R5F100PJAFB#X0 supports LIN 2.2 protocol natively through its UART peripheral with automatic sync-break detection, checksum calculation, and configurable baud rate generation. The UART can be configured in LIN mode without external transceivers, though a LIN physical layer driver (e.g., TJA1020) is required for bus compliance.

How much data flash memory does the R5F100PJAFB#X0 include, and what is its endurance?

The R5F100PJAFB#X0 includes 8 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) across the full VDD range of 1.8–5.5 V. Background operation (BGO) allows concurrent program execution during data flash rewriting, enabling seamless parameter updates in live systems.

What package type and pin count does the R5F100PJAFB#X0 use?

The R5F100PJAFB#X0 uses a 100-pin LFQFP package with 0.5-mm pitch, 14 mm × 14 mm body size, and exposed pad for thermal dissipation. The "FB" suffix in the part number explicitly denotes this LFQFP variant, and "#X0" indicates embossed tape packaging for automated assembly.

Can the R5F100PJAFB#X0 operate from a single 1.8 V supply, and what features remain functional?

Yes, the R5F100PJAFB#X0 supports operation from 1.6 V to 5.5 V. At 1.8 V, all core functions-including 32 MHz operation (with reduced accuracy), 10-bit ADC (with internal 1.45 V reference), RTC, and UART-remain fully operational. However, high-drive GPIO modes and some peripheral clocks may be disabled per datasheet voltage-mode restrictions.