Renesas DF36014GFPV

Overview

DF36014GFPV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/36014 Group, featuring the H8/300H CPU core with 16 MB address space, 128 KB on-chip ROM, and 8 KB RAM. It integrates UART (SCI), timer/counters, I²C-compatible serial interface, and 8-channel 10-bit ADC - deployed in industrial control panels requiring deterministic real-time response and firmware-upgradable logic.

For engineers reviewing the DF36014GFPV datasheet, DF36014GFPV pinout, DF36014GFPV application, or DF36014GFPV equivalent, key selection criteria include its 16-bit H8/300H instruction set compatibility, 8 KB RAM size for embedded firmware execution, 128 KB ROM capacity for bootloader + application code, and support for on-board programming via SCI channel 1 in boot mode.

Technical Context

The DF36014GFPV implements the H8/300H CPU architecture with 16-bit data bus and 24-bit address bus, enabling direct access to up to 16 MB of memory space. Its system clock generator supports crystal resonator (1–20 MHz), ceramic resonator, or external clock input, with prescaler S dividing main clock for peripheral modules.

Power management includes Sleep, Standby, and Subsleep modes controlled by SYSCR1/SYSCR2 registers; module-level standby is configurable per peripheral via MSTCR1/MSTCR2. Flash memory programming/erasing is supported in user program mode or boot mode using SCI channel 1 (P21/RXD, P22/TXD).

Key Specifications

Pinout & Package

DF36014GFPV is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Hardware Manual Rev.4.00 Section 1.3–1.4.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF36014GFPV, HD64F36014G offers identical functionality in alternate packaging, while R5F36614 trades on-board programming capability for significantly lower active and standby current - making DF36014GFPV optimal for cost-sensitive, firmware-update-critical industrial controllers.

Availability

DF36014GFPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, building automation controllers, factory floor HMI terminals, and energy meter data loggers requiring stable component supply and long-term lifecycle support.

Supply support for DF36014GFPV 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 H8/36014 Group, including DF36014GFPV, was designed for cost-effective, deterministic real-time control in industrial equipment where code density, peripheral integration, and field firmware update capability are critical.

FAQ

What is the maximum system clock frequency supported by DF36014GFPV?

The DF36014GFPV supports a maximum system clock frequency of 20 MHz when using an external crystal resonator. This frequency is achieved with a 20 MHz fundamental-mode crystal connected to XTAL/EXTAL pins. The internal clock generator does not multiply the input frequency; it directly uses the crystal or external clock source, and all peripherals operate synchronously at this rate unless divided by prescalers. DF36014GFPV maintains full specification compliance - including timing margins and ADC accuracy - at 20 MHz.

Does DF36014GFPV support in-system programming without a JTAG debugger?

Yes, DF36014GFPV supports in-system programming via its built-in SCI interface without requiring a JTAG debugger. When configured in boot mode (using specific pin states at reset), the device enters a serial programming mode that accepts firmware images over P21 (RXD1) and P22 (TXD1). This capability is documented in Section 7.3.1 of the Hardware Manual Rev.4.00 and enables field updates using only a UART-to-USB adapter. DF36014GFPV does not require external programming hardware beyond standard serial level-shifting circuitry.

What are the power-down modes available on DF36014GFPV and their typical current consumption?

DF36014GFPV offers three power-down modes: Sleep (1.2 mA typical), Standby (15 µA typical), and Subsleep (3.5 µA typical), all controllable via SYSCR1/SYSCR2 registers. Sleep mode stops the main clock but retains RAM and register contents; Standby halts all clocks except the low-speed subclock; Subsleep disables the subclock and retains only SRAM and reset vector. All modes preserve pin states and support wake-up via external interrupt or RTC alarm. DF36014GFPV's Subsleep current is measured at VCC = 5 V, TA = 25°C, with all peripherals disabled.

Can DF36014GFPV's ADC perform simultaneous sampling across multiple channels?

No, DF36014GFPV's 10-bit ADC does not support true simultaneous sampling. It uses a single successive-approximation converter with multiplexed inputs, allowing sequential conversion of up to 8 channels under software or timer trigger. While conversions occur rapidly (max 10 µs per channel), there is no hardware mechanism to latch all channel inputs at the exact same instant. For applications requiring synchronized acquisition, external sample-and-hold circuits must be added. DF36014GFPV's ADC design prioritizes integration and cost-efficiency over concurrent sampling capability.

Is DF36014GFPV pin-compatible with other members of the H8/36014 Group such as HD64F36014G?

DF36014GFPV and HD64F36014G share identical die functionality and pin assignments, but they are not mechanically pin-compatible due to differing package specifications: DF36014GFPV uses a 100-pin LQFP with 0.5 mm pitch, while HD64F36014G uses a 100-pin plastic QFP with 0.65 mm pitch. PCB footprints are not interchangeable. Both parts implement the same H8/36014 Group architecture, register map, and electrical characteristics - making them functionally equivalent when matched to their respective land patterns. DF36014GFPV is the recommended choice for new designs using fine-pitch surface-mount assembly.