Renesas R5F523E6MDNF#00

Overview

R5F523E6MDNF#00 from Renesas is a 32-bit RXv2 core MCU optimized for high-precision industrial sensing, integrating a 24-bit delta-sigma ADC with 31.25 kSPS max sampling rate, ±5-V analog input range, 256 KB on-chip flash, 32 KB SRAM, and CAN 2.0B interface compliant to ISO 11898-1 at up to 1 Mbps - deployed in load cell signal conditioning and weigh scale front ends.

For engineers reviewing the R5F523E6MDNF#00 datasheet, R5F523E6MDNF#00 pinout, R5F523E6MDNF#00 application, or R5F523E6MDNF#00 equivalent, key selection criteria include its 31.25 kSPS delta-sigma ADC performance at ±5 V full-scale, 40-pin HWQFN (PWQN0040KD-A) package with no LCD driver, -40°C to +85°C operating range (D version), and integrated excitation current sources for bridge sensor biasing.

Technical Context

The R5F523E6MDNF#00 implements the RXv2 CPU core with 32 MHz max operation, IEEE 754-compliant single-precision FPU, and memory protection unit (MPU), enabling deterministic real-time control in safety-aware industrial firmware. Its dual A/D subsystem combines a 24-bit delta-sigma converter (DSADB) with programmable gain instrumentation amplifier (PGA ×1–×128) and a separate 12-bit SAR ADC (S12ADE) for auxiliary monitoring.

Timing and power management are tightly coupled: the low-power timer (LPT) operates during software standby using the 32.768 kHz sub-clock, while the independent watchdog timer (IWDTa) uses a dedicated 15-kHz on-chip oscillator. Event Link Controller (ELC) enables autonomous peripheral coordination - e.g., MTU2a PWM triggers DSADB conversion without CPU intervention.

Key Specifications

Pinout & Package

Packaged in a 40-pin HWQFN (PWQN0040KD-A), the R5F523E6MDNF#00 features a 6 × 6 mm body with 0.5 mm pitch, thermal pad exposed on underside, and 5-V tolerant I/Os on designated pins. Pin functions are defined per Table 1.4 of R01DS0402EJ0100 Rev.1.00, with 27 general-purpose I/Os, 1 dedicated input pin, 14 pull-up resistors, and 14 open-drain outputs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-precision sensing MCU applications.

Compared with R5F523E5MDNF#00, the R5F523E6MDNF#00 provides double flash/RAM for complex metrology algorithms and OTA updates; versus ADUCM360BCPZ-RL7, it delivers higher sampling throughput, CAN connectivity, and deterministic real-time control - critical for multi-sensor industrial gateways.

Availability

R5F523E6MDNF#00 is available at Aetrix Electronics and suitable for industrial weigh scale systems, pressure transmitter modules, motor drive current monitors, and energy metering front ends requiring stable component supply across extended product lifecycles.

Supply support for R5F523E6MDNF#00 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 infrastructure markets.

The RX23E-B Group targets high-accuracy sensor signal conditioning, integrating metrology-grade analog peripherals with real-time MCU capabilities for industrial IoT edge nodes and smart field devices.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6MDNF#00?

The R5F523E6MDNF#00 supports a maximum delta-sigma ADC sampling rate of 31.25 kSPS at ±5-V input range. This is confirmed in Table 1.3 of R01DS0402EJ0100 Rev.1.00 for part number R5F523E6MDNF. The device does not support the 125 kSPS mode - that capability is reserved for variants with 'B', 'J', 'K', or 'L' suffixes in the part number.

Does R5F523E6MDNF#00 include an LCD controller?

No, the R5F523E6MDNF#00 does not include an LCD controller. Per Figure 1.1 and Table 1.3 of the datasheet, the 'M' suffix explicitly denotes "LCD driver not included". This distinguishes it from 'J' and 'L' variants (e.g., R5F523E6JDFN) which integrate LCD drivers for segment-based displays.

What package type and pin count does R5F523E6MDNF#00 use?

The R5F523E6MDNF#00 uses the PWQN0040KD-A package: a 40-pin HWQFN with 6 × 6 mm body size, 0.5 mm pitch, and exposed thermal pad. This is verified in Table 1.3 (List of Products) and Figure 1.1 (Part Number Decoding) of R01DS0402EJ0100 Rev.1.00.

Can R5F523E6MDNF#00 operate with a 1.8-V supply voltage?

Yes, the R5F523E6MDNF#00 supports operation from a single 1.8-V to 5.5-V supply. However, at 1.8 V, the maximum operating frequency is limited to 8 MHz per Table 1.1 (Outline of Specifications). Full 32 MHz operation requires VCC ≥ 2.7 V.

Is CAN interface supported on R5F523E6MDNF#00?

Yes, the R5F523E6MDNF#00 integrates one CAN 2.0B module (RSCAN) compliant with ISO 11898-1, supporting data rates up to 1 Mbps. This is confirmed in the "Up to eight communication functions" section of the datasheet and Table 1.2 (Comparison of Functions), where CAN is marked "Available" for all package types including the 40-pin HWQFN.