Renesas DF38799FP10V

Overview

DF38799FP10V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8/300H Super Low Power Series, featuring an H8/300H CPU core, 128 KB on-chip ROM, 8 KB RAM, and integrated peripherals including UART, I²C, and 16-bit timers. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and supports low-power stop/wait modes - used in industrial control panels requiring deterministic real-time response and extended battery life.

For engineers reviewing the DF38799FP10V datasheet, DF38799FP10V pinout, DF38799FP10V application, or DF38799FP10V equivalent, key selection criteria include its 100-pin LQFP package, 32-bit address space, on-chip debug support via E8 interface, and qualification for Standard-grade applications including office equipment and test instrumentation.

Technical Context

The DF38799FP10V implements the H8/300H CPU architecture with full instruction set compatibility to the H8/300, supporting 16-bit data paths and 32-bit addressing. It integrates a clock pulse generator with crystal, ceramic, and external clock input options, plus SUB32k oscillator control for real-time clock functions.

Peripheral subsystems include three asynchronous serial interfaces (SCI0–SCI2), one I²C bus interface, 16-bit timer PWM units with capture/compare, and a 10-bit ADC with 8 channels. Interrupt handling uses a priority-based controller with 64 vector entries and configurable edge-sensitive external interrupt inputs.

Key Specifications

Pinout & Package

DF38799FP10V is housed in a 100-pin LQFP package with exposed thermal pad (P-FQFP100-1414-0.50). Pin assignments follow the H8/38799 Group Hardware Manual Rev.1.00 (2007), with dedicated power/ground pairs, multiplexed I/O ports (P0–P15), and function-specific pins for clock input, reset, NMI, and debug interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF38799FP10V, R5F38799FP10V offers scalable performance and future-proofing at higher cost and power, while H8/38799F provides identical functionality in smaller form factor - making DF38799FP10V optimal for balanced I/O density, legacy toolchain support, and industrial temperature stability.

Availability

DF38799FP10V is available at Aetrix Electronics and suitable for industrial control panels, portable test instruments, office equipment controllers, and factory automation sensor nodes requiring stable component supply and long-lifecycle availability.

Supply support for DF38799FP10V 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 H8/38799 Group was designed for cost-effective, low-power embedded control in commercial and industrial equipment - emphasizing deterministic real-time response, on-chip integration, and toolchain compatibility across legacy H8 platforms.

FAQ

What is the maximum operating frequency of the DF38799FP10V?

The DF38799FP10V supports a maximum system clock frequency of 20 MHz, delivering approximately 13.3 MIPS performance. This frequency is achieved using the on-chip clock pulse generator with external crystal, ceramic resonator, or external clock source. The DF38799FP10V's timing specifications are validated across the full 2.7–5.5 V supply range and −20 °C to +75 °C ambient temperature.

Does the DF38799FP10V include on-chip debug capability?

Yes, the DF38799FP10V supports hardware-assisted on-chip debugging via the E8 emulator interface. It provides non-intrusive breakpoints, real-time register and memory inspection, and flash programming without requiring external JTAG adapters. Note that pins P16, P36, and P37 are shared with the E8 interface and are unavailable as general-purpose I/O when the emulator is connected - the DF38799FP10V must be configured accordingly in debug mode.

What are the power supply requirements for the DF38799FP10V?

The DF38799FP10V operates from a single supply rail between 2.7 V and 5.5 V, supporting both 3.3 V and 5 V system designs without level shifters. It features multiple VCC/VSS pairs distributed across the 100-pin LQFP package to reduce power supply noise. The DF38799FP10V also supports ultra-low-power stop mode (<1 µA) and wait mode (~100 µA), enabling battery-powered operation in portable instrumentation and remote sensors.

Which communication interfaces are integrated into the DF38799FP10V?

The DF38799FP10V integrates three asynchronous serial interfaces (SCI0–SCI2), one I²C bus interface, and supports UART, RS-232, and Modbus RTU protocols out of the box. SCI0 and SCI1 operate up to 1 Mbps; SCI2 supports lower-speed peripheral links. The I²C interface complies with standard- and fast-mode specifications (100/400 kbps) and functions as both master and slave - enabling direct connection to EEPROMs, temperature sensors, and display controllers without external logic.

Is the DF38799FP10V qualified for automotive applications?

No, the DF38799FP10V is classified as a Standard-grade Renesas product, intended for computers, office equipment, communications gear, test instruments, audiovisual devices, and industrial robots. It is not qualified for automotive, medical life-support, aerospace, or nuclear applications. For automotive use, Renesas recommends its RH850 or RL78 families - the DF38799FP10V does not meet AEC-Q100 requirements or extended temperature grade specifications needed for vehicle environments.