Renesas HD64F38024RFV

Overview

HD64F38024RFV from Renesas Electronics is an 8-bit single-chip microcontroller in the H8/300L Super Low Power Series, featuring a 16 MHz H8/300L CPU core, 32 KB on-chip flash ROM, 1 KB RAM, integrated 10-bit × 8-channel ADC, LCD controller (32 seg × 4 com), and UART/Synchronous SCI - deployed in industrial control panels requiring low-power, integrated display and sensor interface capability.

For engineers reviewing the HD64F38024RFV datasheet, HD64F38024RFV pinout, HD64F38024RFV application, or HD64F38024RFV equivalent, key selection considerations include its FP-80A 80-pin QFP package, 2.7–5.5 V operating voltage range, built-in WDT and LVD, and support for on-chip debugging via dedicated emulator pins.

Technical Context

The HD64F38024RFV implements the H8/300L CPU architecture with 16-bit internal data paths and 24-bit addressing, enabling direct access to up to 16 MB of memory space. It integrates timer modules (Timer A/C/F/G), PWM output, and a programmable serial interface supporting both asynchronous UART and synchronous communication modes.

Its peripheral set includes a 10-bit successive-approximation ADC with 8 input channels, an LCD controller/driver capable of driving 128 segments, and a low-voltage detection (LVD) circuit with reset generation - all operating within the same 2.7–5.5 V supply range and qualified for –40°C to +85°C industrial temperature grade (WTR).

Key Specifications

Pinout & Package

HD64F38024RFV is housed in a 80-pin plastic quad flat package (FP-80A), measuring 14 mm × 14 mm with 0.65 mm lead pitch. The package supports surface-mount assembly and provides full I/O access including dedicated emulator pins (e.g., pin 95 for on-chip debug I/O).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with HD64F38024RFV, HD64F38024RFPV trades LVD for finer-pitch packaging, while HD64F38124TFPV sacrifices LCD integration and LVD for higher clock speed and POR - making HD64F38024RFV optimal for display-centric industrial devices needing robust voltage monitoring.

Availability

HD64F38024RFV is available at Aetrix Electronics and suitable for industrial control panels, smart energy meters, PLC I/O modules, and portable medical diagnostics requiring stable component supply across extended production lifecycles.

Supply support for HD64F38024RFV 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 HD64F38024RFV belongs to the H8/38024R Group - a family designed for ultra-low-power, display-integrated embedded control in cost-sensitive industrial and consumer equipment.

FAQ

What is the maximum operating frequency of the HD64F38024RFV?

The HD64F38024RFV operates at a maximum frequency of 16 MHz across its full 2.7–5.5 V supply range. This frequency is achievable using either an external crystal (1–16 MHz) connected to OSC1/OSC2 or an external clock source applied to OSC1. The device does not include an internal RC oscillator, so stable timing depends on external frequency sources.

Does the HD64F38024RFV include a low-voltage detection (LVD) circuit?

Yes, the HD64F38024RFV includes an integrated low-voltage detection (LVD) circuit that monitors VCC and can generate either a reset or interrupt when the supply drops below a user-selectable threshold. This feature is confirmed in the Hardware Manual Rev. 8.00 specification table and is present only in R-series variants like HD64F38024RFV - not in S- or standard F-series parts.

What package type is used for the HD64F38024RFV?

The HD64F38024RFV uses the FP-80A package: an 80-pin plastic quad flat package with 0.65 mm lead pitch and 14 mm × 14 mm body size. This package is distinct from FP-80B (0.5 mm pitch) and TFP-80C (thin profile), and is explicitly listed in the "Specifications" table of the H8/38024 Group Hardware Manual for the R-series variant.

Can the HD64F38024RFV drive an LCD display directly?

Yes, the HD64F38024RFV integrates a full LCD controller/driver supporting up to 32 segments and 4 commons (128 segments total). It provides programmable bias voltage, frame frequency, and duty cycle - enabling direct connection to static or multiplexed segment-based LCDs without external driver ICs, as documented in Section 1.3.2 and peripheral description chapters.

Is on-chip debugging supported for the HD64F38024RFV?

Yes, the HD64F38024RFV supports on-chip emulation via dedicated pins: EMU0–EMU3 (pins 33, 34, 35, and 95). When enabled, these pins are reserved for debug communication and cannot be used for general I/O. Pin 95 becomes bidirectional I/O, while pins 33–35 assume fixed input/output roles per the Hardware Manual's emulator notes.