Renesas R5F72374ADFP#H0

Overview

R5F72374ADFP#H0 from Renesas Electronics is a 32-bit SuperH RISC microcontroller in the SH7237 Group, featuring a 100 MHz CPU core, 512 KB on-chip Flash memory, and integrated peripherals including SCI, I²C, CAN 2.0B controller, 12-bit ADC (16-channel), and MTU timer units. It targets real-time industrial control applications requiring deterministic timing and mixed-signal integration.

For engineers reviewing the R5F72374ADFP#H0 datasheet, R5F72374ADFP#H0 pinout, R5F72374ADFP#H0 application, or R5F72374ADFP#H0 equivalent, key selection criteria include its CAN 2.0B compliance, 100 MHz operation with 1.8–3.6 V supply range, Flash write/erase endurance of 100,000 cycles, and support for single-chip mode with external bus interface disabled.

Technical Context

The R5F72374ADFP#H0 implements the SH-2A CPU core with 32-bit integer execution, 16 KB on-chip RAM, and a multi-layer bus architecture supporting simultaneous access to Flash, RAM, and peripherals. Its CPG module provides programmable clock division with PLL-based frequency synthesis up to 100 MHz.

Interrupt handling uses a 16-level priority INTC with vector table relocation support, while the CAN controller supports both standard and extended frames with 32 message objects and programmable acceptance filtering. The 12-bit ADC operates at up to 1.25 MSPS with hardware-triggered conversion sequencing.

Key Specifications

Pinout & Package

The R5F72374ADFP#H0 is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are defined per Section 1.4 and 1.5 of the SH7237 Group Hardware User's Manual (Rev. 2.00, Jun 2013).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72374ADFP#H0, the R5F72375ADFP#H0 offers higher Flash density for complex protocol stacks, while the R5F72373ADFP#H0 reduces cost for minimal-feature implementations - all three share identical timing, power, and interface behavior.

Availability

R5F72374ADFP#H0 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control units, and energy meter concentrators requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F72374ADFP#H0 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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The SH7237 Group, including R5F72374ADFP#H0, was designed for deterministic real-time control in industrial automation, focusing on CAN-enabled motion control, sensor fusion, and embedded safety functions.

FAQ

What is the maximum operating frequency of the R5F72374ADFP#H0?

The R5F72374ADFP#H0 operates at a maximum CPU frequency of 100 MHz, achieved using its on-chip PLL with external crystal input (4–20 MHz). This frequency is fully supported across the specified industrial temperature range (−40 °C to +85 °C) and supply voltage (1.8–3.6 V), enabling hard real-time execution of control algorithms without throttling.

Does the R5F72374ADFP#H0 include a CAN controller?

Yes, the R5F72374ADFP#H0 integrates a CAN 2.0B-compliant controller with 32 message objects, programmable acceptance filtering, and automatic retransmission. It supports both standard (11-bit) and extended (29-bit) identifiers and is electrically compatible with ISO 11898-1 physical layers - no external CAN protocol IC is required for basic bus communication.

What package type and pin count does the R5F72374ADFP#H0 use?

The R5F72374ADFP#H0 uses a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with an exposed thermal pad. This package is RoHS-compliant, supports standard reflow soldering profiles, and provides dedicated power/ground pins for analog, digital, and core domains to minimize noise coupling in mixed-signal designs.

How much on-chip Flash and RAM does the R5F72374ADFP#H0 provide?

The R5F72374ADFP#H0 includes 512 KB of on-chip Flash memory and 16 KB of SRAM. Flash endurance is rated at 100,000 write/erase cycles with data retention exceeding 20 years at 85 °C, and SRAM retains contents during low-power STOP mode with backup supply.

Is the R5F72374ADFP#H0 pin-compatible with other SH7237 Group MCUs?

Yes, the R5F72374ADFP#H0 shares identical pinout, package, and peripheral register mapping with other members of the SH7237 Group (e.g., R5F72373ADFP#H0 and R5F72375ADFP#H0), differing only in Flash capacity. This allows direct substitution within the same PCB layout when firmware size requirements change.