Renesas DF36012GFPV

Overview

DF36012GFPV 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, and I/O ports. It operates at up to 20 MHz with 5 V supply and supports on-board programming via boot mode for embedded control applications in industrial equipment and consumer electronics.

For engineers reviewing the DF36012GFPV datasheet, DF36012GFPV pinout, DF36012GFPV application, or DF36012GFPV equivalent, key selection considerations include its 100-pin LQFP package, 128 KB flash memory with erase/program-verify capability, SCI channel configuration, and power-down modes (Sleep, Standby, Subsleep) for low-power system design.

Technical Context

The DF36012GFPV implements the H8/300H CPU architecture with instruction set compatibility to the earlier H8/300, supporting 16-bit data paths and 24-bit addressing. It integrates a system clock generator with crystal/ceramic resonator support, prescaler S for peripheral clock division, and module standby control registers (MSTCR1/MSTCR2) enabling selective peripheral shutdown.

Exception handling includes reset, external interrupts (with edge-select registers IEGR1/IEGR2), and internal interrupt sources routed through IENR1/IRR1. The device supports address break debugging via ABRKCR/BARH/BARL registers and uses undefined-address access prohibition as a hardware safety measure.

Key Specifications

Pinout & Package

DF36012GFPV is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per the H8/36012 Group Hardware Manual Rev. 4.00, including dedicated reset, clock input (XIN/XOUT), SCI serial I/O (P21/P22), and multiplexed timer/ADC/INT pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF36012GFPV, HD64F36012G offers identical functionality in alternate packaging, while R5F36612ADFP provides modernized peripherals and longer-term availability at the cost of software migration effort.

Availability

DF36012GFPV is available at Aetrix Electronics and suitable for industrial automation, home appliance control, point-of-sale terminals, and building sensor nodes requiring stable component supply across multi-year production cycles.

Supply support for DF36012GFPV 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 DF36012GFPV - was designed for cost-sensitive, high-reliability embedded control applications where deterministic real-time response and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the DF36012GFPV?

The DF36012GFPV supports a maximum system clock frequency of 20 MHz, achievable using an external 20 MHz crystal resonator connected to XIN/XOUT pins or via divided clock input. This frequency enables deterministic execution of real-time control loops with sub-millisecond latency, and is validated across the full 4.5 V to 5.5 V supply range per the H8/36012 Group Hardware Manual Rev. 4.00.

Does the DF36012GFPV support in-system programming?

Yes, the DF36012GFPV supports on-board programming via boot mode using its SCI3 interface (P21/RXD and P22/TXD pins). This allows firmware updates without external debug hardware, using standard UART communication at configurable baud rates. The process is detailed in Section 7.3.1 of the H8/36012 Group Hardware Manual and requires no additional voltage programming pins.

What power-saving modes does the DF36012GFPV offer?

The DF36012GFPV provides three hardware-controlled power-down modes: Sleep (CPU stopped, peripherals active), Standby (CPU and most peripherals halted, RAM retained), and Subsleep (ultra-low-current mode with selected wake-up sources only). These are managed via SYSCR1, SYSCR2, and MSTCR registers, enabling current draw reductions to under 100 µA in Subsleep - critical for battery-powered DF36012GFPV deployments.

Is the DF36012GFPV pin-compatible with other H8/36012 Group variants?

Yes, the DF36012GFPV shares identical pinout and electrical characteristics with all members of the H8/36012 Group, including HD64F36012G and HD64336012G. All use the same 100-pin LQFP package, pin assignments, and I/O drive capabilities, allowing direct substitution on existing PCBs without layout changes - provided firmware accounts for any mask ROM vs. flash memory differences.

What is the role of the NC pins on the DF36012GFPV?

The NC (No Connect) pins on the DF36012GFPV are internally unconnected or reserved for factory testing and must remain unconnected in the final design. Per Renesas' General Precautions, connecting external circuitry to NC pins may induce noise coupling or cause undefined LSI behavior, compromising reliability. The DF36012GFPV datasheet explicitly lists these pins and prohibits their use to ensure guaranteed operation.