Renesas DF36012GFYV

Overview

DF36012GFYV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/36012 Group, featuring the H8/300H CPU core, 128 KB on-chip ROM, 8 KB RAM, and integrated peripherals including UART (SCI), timer modules (MTU, RTC), and 8-channel 10-bit ADC. It operates at up to 20 MHz and supports multiple power-down modes (Sleep, Standby, Subsleep) for low-power embedded control in industrial and consumer applications.

For engineers reviewing the DF36012GFYV datasheet, DF36012GFYV pinout, DF36012GFYV application, or DF36012GFYV equivalent, key selection considerations include its 100-pin LQFP package, H8/300H instruction set compatibility, on-chip flash programming capability via boot mode, and qualification for Standard-grade applications per Renesas quality classification.

Technical Context

The DF36012GFYV implements the H8/300H CPU architecture with 24-bit address space, supporting both little-endian and big-endian data access. Its system clock generator accepts external crystal (1–20 MHz), ceramic resonator, or external clock input, with internal prescalers enabling programmable peripheral clock division.

On-chip memory includes 128 KB ROM (flash), 8 KB RAM, and dedicated registers for flash control (FLMCR1/FLMCR2), erase block management (EBR1), and flash enable (FENR). Power management is handled by SYSCR1/SYSCR2 and module standby control registers (MSTCR1/MSTCR2), enabling selective peripheral shutdown without full CPU halt.

Key Specifications

Pinout & Package

DF36012GFYV is housed in a 100-pin LQFP package with exposed thermal pad. Pin functions are defined across four I/O ports (Port A–D), system control (RESET, CLK, XIN/XOUT), serial interfaces (SCI0–SCI3), analog inputs (AD0–AD7), and peripheral-specific signals (MTU timers, RTC, LVD).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF36012GFYV, R5F36612GFP#30 offers enhanced ESD immunity and lower active current but demands full software rework, while HD64F36012G provides zero-change hardware compatibility and identical timing behavior for seamless production continuity.

Availability

DF36012GFYV is available at Aetrix Electronics and suitable for industrial motor control, home appliance controllers, building automation nodes, and portable test equipment requiring stable component supply and long-lifecycle support.

Supply support for DF36012GFYV 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 H8 Family/H8/300H Tiny Series-including DF36012GFYV-is designed for cost-sensitive, resource-constrained embedded control applications demanding reliability, low power, and mature toolchain support.

FAQ

What is the maximum operating frequency of the DF36012GFYV?

The DF36012GFYV supports a maximum system clock frequency of 20 MHz. This is achieved using an external 20 MHz crystal connected to the XIN/XOUT pins or a compatible oscillator source. The internal clock generator includes prescalers that allow flexible peripheral clock derivation while maintaining CPU timing integrity. DF36012GFYV must be operated within this limit to guarantee correct execution of all instructions and peripheral functions per its electrical specifications.

Does DF36012GFYV support in-system programming (ISP)?

Yes, DF36012GFYV supports in-system programming via its built-in SCI interface in boot mode. When the BOOT pin is asserted at power-on, the device enters a special bootloader state that accepts flash programming commands over SCI0. This eliminates the need for external programmers and enables field firmware updates. DF36012GFYV's flash control registers (FLMCR1/FLMCR2) and erase block register (EBR1) provide full control over sector erasure and byte/word programming sequences.

What power management features does DF36012GFYV offer?

DF36012GFYV implements three hardware-supported low-power modes: Sleep (CPU halted, peripherals active), Standby (CPU and most peripherals halted, RAM retained), and Subsleep (only RTC and LVD active). Entry and exit are controlled via SYSCR1/SYSCR2 and MSTCR1/MSTCR2 registers. Wake-up sources include external interrupts, RTC alarms, and LVD events. DF36012GFYV's design allows µA-range standby current, making it suitable for battery-backed applications where runtime efficiency is critical.

Is DF36012GFYV pin-compatible with other H8/36012 variants?

Yes, DF36012GFYV shares the same 100-pin LQFP package and pin assignment with HD64F36012G and HD64F36012, as confirmed in the H8/36024Group/H8/36014Group Hardware Manual Rev.4.00. All I/O, power, clock, and reset pin locations match exactly. DF36012GFYV is functionally and physically interchangeable with these variants in existing PCB layouts, provided the target application falls within the Standard quality grade defined by Renesas.

What is the ADC resolution and channel count on DF36012GFYV?

DF36012GFYV integrates an 8-channel, 10-bit successive-approximation ADC with internal sample-and-hold. Each channel maps directly to Port D pins (P40–P47), supporting single-ended analog input with programmable conversion start triggers (software, timer, or external event). The ADC includes a dedicated result register buffer and supports both continuous and single-conversion modes. DF36012GFYV's ADC meets the precision requirements for sensor interfacing in industrial and consumer control systems without external signal conditioning.