Renesas DF36077GHV

Overview

DF36077GHV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/36077 Group, featuring the H8/300H CPU core with instruction compatibility to the H8/300. It integrates on-chip ROM (128 KB), RAM (8 KB), and peripheral modules including 3-channel SCI, 2-channel timer/counters, 8-channel 10-bit ADC, and 48 I/O pins. It operates at up to 20 MHz and targets embedded control in industrial equipment and office automation.

For engineers reviewing the DF36077GHV datasheet, DF36077GHV pinout, DF36077GHV application, or DF36077GHV equivalent, this page delivers verified technical context, package mapping, functional specifications, and real-world use cases - all grounded in Renesas' official H8/36077 Group Hardware Manual Rev.3.00 (2007).

Technical Context

The DF36077GHV implements the H8/300H CPU core with 24-bit address space, supporting both internal ROM and external memory expansion via 8-bit data bus. Its clock system includes an on-chip RC oscillator (trimmable ±1%), external crystal/ceramic resonator support (1–20 MHz), and programmable clock dividers for flexible peripheral timing.

Peripheral integration includes three asynchronous serial interfaces (SCI) with full-duplex operation and framing error detection, two 16-bit timer/counters with input capture/output compare capability, and an 8-channel 10-bit successive-approximation ADC with sample-and-hold and conversion completion interrupt.

Key Specifications

Pinout & Package

DF36077GHV is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package. Pin functions are defined per Renesas Hardware Manual Rev.3.00 Section 1.4 (Pin Functions) and Section 1.3 (Pin Arrangement).

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F36077G and H8/36077LF, DF36077GHV offers identical core functionality and pin compatibility but targets commercial-temperature applications with simplified logistics and lower cost - making it optimal for office equipment and indoor industrial controllers where extended thermal range is unnecessary.

Availability

DF36077GHV is available at Aetrix Electronics and suitable for industrial motor controllers, office equipment control boards, factory automation I/O modules, and test & measurement instruments requiring stable component supply and long-term design-in support.

Supply support for DF36077GHV 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 applications.

The H8/36077 Group - including DF36077GHV - was designed for cost-effective, high-integration embedded control in resource-constrained systems where reliability, code compatibility, and peripheral richness outweigh raw processing speed.

FAQ

What is the maximum operating frequency of the DF36077GHV?

The DF36077GHV supports a maximum system clock frequency of 20 MHz, achievable using either the on-chip RC oscillator (after trimming) or an external crystal/resonator connected to XTAL/EXTAL pins. At this frequency, the H8/300H core executes instructions with typical cycle times of 50 ns, enabling deterministic real-time response in control applications. The CKCSR register controls clock source selection and division ratios.

Does the DF36077GHV include on-chip flash or ROM memory?

The DF36077GHV integrates 128 KB of mask-programmed ROM and 8 KB of SRAM. It does not include reprogrammable flash memory; firmware is permanently written during manufacturing. This architecture ensures immunity to accidental overwrite and meets the "Standard" quality grade requirements for office and industrial equipment as defined in Renesas documentation.

How many ADC channels does the DF36077GHV support, and what is their resolution?

The DF36077GHV features an 8-channel, 10-bit successive-approximation ADC with sample-and-hold circuitry. Each channel can be individually selected via the ADCSR register, and conversion results are stored in the 16-bit ADDR register. The ADC supports both software-triggered and timer-triggered conversions, making it suitable for synchronized sensor sampling in motor control or data acquisition systems.

Is the DF36077GHV pin-compatible with other members of the H8/36077 Group?

Yes, the DF36077GHV shares the same 64-pin LQFP package and pinout with other H8/36077 Group variants including HD64F36077G and H8/36077LF. All share identical I/O mapping, peripheral pin assignments, and power/ground pin locations. Differences between variants are limited to temperature grade, memory configuration (e.g., ROM size), and marking - not physical or electrical interface.

What debug interfaces are supported by the DF36077GHV?

The DF36077GHV supports on-chip debugging via Renesas E7/E8 emulators, using dedicated pins (NMI, P85–P87). These pins are reserved during emulation and cannot be used for application I/O simultaneously. Debug access covers full register visibility, breakpoint setting in code/data space, and real-time trace - but requires adherence to memory map restrictions (e.g., H'D000–H'DFFF reserved for emulator use).