Renesas DF36024GFTV

Overview

DF36024GFTV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/36024 Group, featuring the H8/300H CPU core, 256 KB on-chip ROM, 16 KB RAM, and integrated peripherals including SCI, I²C, timer modules, and 80-pin PQFP package. It targets embedded control in industrial equipment, test instrumentation, and office automation systems requiring deterministic real-time operation.

For engineers reviewing the DF36024GFTV datasheet, DF36024GFTV pinout, DF36024GFTV application, or DF36024GFTV equivalent, key selection criteria include its 256 KB flash memory size, 16 KB SRAM capacity, 80-pin PQFP footprint, support for on-board programming via SCI boot mode, and compliance with Renesas' Standard quality grade for industrial applications.

Technical Context

The DF36024GFTV implements the H8/300H CPU architecture with instruction set compatibility to the H8/300, enabling legacy code reuse. It integrates system control functions (power-down modes: Sleep, Standby, Subsleep), clock pulse generators (crystal/ceramic resonator or external clock input), and flash memory control logic supporting in-system programming and erase-verify cycles.

Peripheral integration includes three serial communication interfaces (SCI0–SCI2), an I²C bus interface, 16-bit timer modules (TMR0–TMR3), watchdog timer, and 64 general-purpose I/O pins. Memory mapping supports unified address space with dedicated ROM/RAM regions and reserved areas for peripheral registers and emulation use.

Key Specifications

Pinout & Package

DF36024GFTV is housed in an 80-pin PQFP package with 0.65 mm lead pitch and 14 mm × 14 mm body size. Pin assignments follow Renesas' standardized H8/36024 Group layout, supporting dual power domains (V_CC/V_SS for core and I/O), dedicated reset (RES), clock inputs (XIN/XOUT), and multiplexed peripheral signal routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF36024GFTV, HD64F36024G offers identical functionality with minor packaging variation, while R5F36624ADFP provides architectural evolution-including DMA and modern debug infrastructure-at the cost of software migration effort and higher toolchain licensing requirements.

Availability

DF36024GFTV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automated test equipment, and office multi-function printer engine control requiring stable component supply and long-term manufacturing continuity.

Supply support for DF36024GFTV 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 DF36024GFTV-is designed for cost-sensitive, real-time embedded control applications demanding high reliability, low power, and mature toolchain support in industrial and office equipment.

FAQ

What is the maximum system clock frequency supported by DF36024GFTV?

The DF36024GFTV supports a maximum system clock frequency of 20 MHz, achievable using an external crystal resonator (1–20 MHz range), ceramic resonator, or direct clock input. At this frequency, the CPU executes instructions with a 50 ns cycle time, enabling deterministic real-time response for time-critical control loops. The clock pulse generator includes prescalers and mode selection registers to configure internal bus timing independently of the main oscillator.

Does DF36024GFTV support in-system programming without external hardware?

Yes, DF36024GFTV supports in-system programming via its SCI boot mode. By asserting specific pin states at power-on, the device enters a bootloader that accepts firmware images over SCI0 (TXD0/RXD0 pins) using standard UART framing. This eliminates the need for external programmers or JTAG adapters, reducing production test complexity and enabling field firmware updates through existing communication interfaces.

How much on-chip memory does DF36024GFTV integrate, and what types?

DF36024GFTV integrates 256 KB of on-chip flash memory for program storage and 16 KB of on-chip SRAM for data and stack operations. The flash memory supports sector erase, byte/word programming, and built-in erase-verify functionality to ensure data integrity. The SRAM is fully static and accessible without wait states across the full operating frequency range, making it suitable for real-time buffering and variable storage.

What power management features does DF36024GFTV offer for battery-powered applications?

DF36024GFTV provides three low-power modes: Sleep (CPU halted, peripherals active), Standby (CPU and peripherals halted, RAM retained), and Subsleep (deep power-down with RAM retention and wake-up via external interrupt). In Subsleep mode, typical current consumption drops below 1 μA, enabling multi-year operation on coin-cell batteries. Wake-up latency is under 10 μs, preserving responsiveness for event-driven sensing applications.

Is DF36024GFTV pin-compatible with other members of the H8/36024 Group?

Yes, DF36024GFTV shares the same 80-pin PQFP package and pinout with all variants in the H8/36024 Group, including HD64F36024, HD64F36024G, and H8/36024F. Differences between variants relate to memory configuration (ROM size), operating voltage range, and temperature grade-not physical connectivity. This allows design reuse across firmware variants and simplifies qualification testing for multiple SKUs.