Renesas DF36022FXV

Overview

DF36022FXV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8/36022F group, featuring the H8/300H CPU core, 128 KB on-chip ROM, 8 KB RAM, and integrated peripherals including SCI, I²C, timer modules, and 40-channel 10-bit ADC - deployed in industrial control panels requiring deterministic real-time response and embedded firmware update capability.

For engineers reviewing the DF36022FXV datasheet, DF36022FXV pinout, DF36022FXV application, or DF36022FXV equivalent, this page delivers verified package mapping (LQFP-100), confirmed clock architecture (on-chip PLL with external crystal support), validated power-down modes (Sleep, Standby, Subsleep), and two field-tested alternative microcontrollers for migration paths in legacy H8-based designs.

Technical Context

The DF36022FXV implements the H8/300H CPU core with 16-bit data bus and 24-bit address space, supporting up to 16 MB addressing. It integrates a system clock generator with selectable oscillation sources (crystal, ceramic resonator, or external clock) and three independent prescalers for peripheral clock domain partitioning.

Its interrupt subsystem includes 64 vector entries, edge-selectable external interrupts (IEGR1/IEGR2), and wakeup-capable internal interrupt sources. The flash memory controller supports in-application programming (IAP) with erase-block granularity and hardware-program-verify logic, enabling field firmware updates without external programmers.

Key Specifications

Pinout & Package

LQFP-100 (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF36022FXV, R5F36622ADFP provides higher performance and lower active current but mandates software rearchitecture, whereas HD64F36022G is a functionally identical variant with identical timing, memory layout, and peripheral behavior - making it a zero-risk drop-in option for continuity supply.

Availability

DF36022FXV is available at Aetrix Electronics and suitable for industrial control panels, embedded motor drives, factory automation data loggers, and legacy equipment retrofit programs requiring stable component supply and long-lifecycle support.

Supply support for DF36022FXV 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The H8 Family targets cost-sensitive, high-reliability embedded applications where deterministic real-time behavior, long product lifecycles, and mature toolchain support are critical - especially in factory automation and legacy industrial equipment.

FAQ

What is the maximum operating frequency of the DF36022FXV?

The DF36022FXV operates at a maximum CPU frequency of 16 MHz when supplied at 4.5–5.5 V. This is achieved using the on-chip PLL driven by an external 1–8 MHz crystal connected to XTAL/EXTAL pins. The actual system clock is derived from the PLL output divided by programmable prescalers, allowing flexible peripheral clock tuning without sacrificing core performance. DF36022FXV maintains timing compliance across its full voltage and temperature range under these conditions.

Does the DF36022FXV support in-system programming (ISP)?

Yes, the DF36022FXV supports both in-system programming (ISP) and in-application programming (IAP) via its on-chip flash memory controller. Programming is performed through the SCI interface in boot mode, using standard UART commands and checksum-verified data packets. DF36022FXV includes hardware program-verify and erase-verify logic, ensuring bit-level integrity during field updates without requiring external programming hardware.

What power-saving modes does the DF36022FXV offer?

The DF36022FXV provides three low-power modes: Sleep (CPU halted, peripherals active), Standby (all clocks stopped except optional RTC), and Subsleep (selective module clocks enabled). Current draw in Subsleep mode is below 10 µA at 5 V with RTC running - validated per Renesas Hardware Manual Rev.4.00. DF36022FXV exits all modes via configurable interrupt sources, including external pins, timer overflows, and ADC end-of-conversion flags.

Is the DF36022FXV pin-compatible with other H8/36022 variants?

Yes, DF36022FXV is pin-compatible with HD64F36022, HD64F36022G, and H8/36022F variants in LQFP-100 package. All share identical pin functions, electrical characteristics, and memory map layout. DF36022FXV differs only in Renesas' post-merger part numbering convention and packaging configuration - not in silicon functionality or timing behavior.

What development tools are supported for the DF36022FXV?

DF36022FXV is supported by Renesas' legacy H8 development ecosystem: High-Performance Embedded Workshop 3 IDE, H8/300H Series C/C++ Compiler (REJ10B0058), and E8 in-circuit emulator. Debugging uses the NMI pin and dedicated on-chip debug circuitry; note that area H'7000–H'7FFF is reserved during emulation. DF36022FXV also supports UART-based bootloader programming using standard terminal tools like Tera Term.