Renesas DF2370RVFQ34V

Overview

DF2370RVFQ34V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2370R Group, featuring an H8S/2000 CPU core, 512 KB on-chip flash ROM, 32 KB RAM, and integrated peripherals including a 10-bit A/D converter, 8-bit D/A converter, TPU, SCI, I²C, and DMAC. It operates at up to 25 MHz and supports multiple boot and memory expansion modes for industrial control applications.

For engineers reviewing the DF2370RVFQ34V datasheet, DF2370RVFQ34V pinout, DF2370RVFQ34V application, or DF2370RVFQ34V equivalent, key selection criteria include its 100-pin LQFP package, 3.3 V supply compatibility, on-chip F-ZTAT flash reprogrammability, and support for external DRAM interfacing via high-functionality bus controller.

Technical Context

The DF2370RVFQ34V implements the H8S/2000 CPU with a 32-bit internal architecture and sixteen 16-bit general-purpose registers, enabling efficient 16-Mbyte linear address space access. Its memory map includes configurable operating modes (e.g., Mode 4, Mode 5, Mode 7) that determine ROM/RAM mapping and external bus enablement.

Peripheral integration includes dual DMA controllers (DMAC and EXDMAC), a programmable pulse generator (PPG), watchdog timer (WDT), and IrDA-capable serial communication interface (SCI). The EXDMAC supports single-address mode transfers with DACK signaling and configurable source/destination address update modes (fixed, increment, decrement).

Key Specifications

Pinout & Package

DF2370RVFQ34V is housed in a 100-pin LQFP package (VFQFPN type per Renesas nomenclature), with exposed thermal pad for enhanced heat dissipation in continuous operation. Pin functions are highly multiplexed across port groups (PA–PH), supporting address/data bus, peripheral I/O, and dedicated timer/communication signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF2370RVFQ34V, HD64F2370R is functionally identical but lacks Renesas' current product documentation and supply chain traceability, while H8S/2372R offers memory scaling at the cost of reduced code/data headroom - both require validation against full application memory and timing requirements.

Availability

DF2370RVFQ34V is available at Aetrix Electronics and suitable for industrial automation, test equipment, and building control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for DF2370RVFQ34V 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 H8S/2370R Group, including DF2370RVFQ34V, was designed for cost-effective, high-integration embedded control in industrial equipment where reliability, peripheral richness, and flash reprogrammability are critical.

FAQ

What is the maximum operating frequency of the DF2370RVFQ34V?

The DF2370RVFQ34V supports a maximum system clock frequency of 25 MHz. This timing specification is validated across the full industrial temperature range (−40°C to +85°C) and 3.3 V ±0.3 V supply, enabling deterministic real-time execution for control loops and communication stacks. The DF2370RVFQ34V achieves this performance using the H8S/2000 CPU core with zero-wait-state internal memory access.

Does the DF2370RVFQ34V include on-chip flash memory, and is it reprogrammable?

Yes, the DF2370RVFQ34V integrates 512 KB of on-chip F-ZTAT flash memory. This flash is fully reprogrammable in-system (ISP) without requiring UV erasure or device removal. The DF2370RVFQ34V supports block erase and byte/word programming via on-chip boot ROM routines, making it suitable for field firmware updates and production-line calibration.

What package type and pin count does the DF2370RVFQ34V use?

The DF2370RVFQ34V is supplied in a 100-pin LQFP package designated VFQFPN by Renesas, measuring 14 mm × 14 mm with 0.5 mm lead pitch. It features an exposed thermal pad on the underside for improved heat dissipation. All pin functions-including multiplexed address/data bus, peripheral I/O, and clock/reset-are documented in the H8S/2378 Group Hardware Manual (Rev. 7.00).

Which analog peripherals are integrated into the DF2370RVFQ34V?

DF2370RVFQ34V integrates a 10-bit successive-approximation analog-to-digital converter (ADC) with 8 input channels and a sample-and-hold circuit, plus an 8-bit voltage-output digital-to-analog converter (DAC). Both peripherals connect directly to internal buses and support hardware-triggered operation synchronized to timer events - eliminating software overhead in sensor acquisition and actuator drive tasks.

Is the DF2370RVFQ34V pin-compatible with other members of the H8S/2370R Group?

Yes, the DF2370RVFQ34V shares identical pinout and electrical characteristics with other H8S/2370R variants such as HD64F2370R and H8S/2370R. Differences between these parts are limited to memory size (e.g., H8S/2372R has 256 KB flash) or marking - all maintain full pin-for-pin compatibility, allowing drop-in replacement where memory requirements align.