Renesas HD64F38024RDV

Overview

HD64F38024RDV 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, and integrated peripherals including 10-bit × 8-channel ADC, SCI, 10-bit PWM, LCD controller/driver (32 seg × 4 com), and multiple timers - deployed in industrial control panels requiring compact, low-power embedded logic with display interface capability.

For engineers reviewing the HD64F38024RDV datasheet, HD64F38024RDV pinout, HD64F38024RDV application, or HD64F38024RDV equivalent, key selection considerations include its FP-80A package, 51 I/O pins, 2.7–5.5 V operating voltage range, –40 to +85°C extended temperature grade (WTR), and Flash-based field-programmability for iterative firmware updates in production equipment.

Technical Context

The HD64F38024RDV implements the H8/300L CPU architecture with 16-bit internal data paths and 24-bit addressing, supporting up to 16 MB address space. It integrates system-level functions including power-on reset (POR), low-voltage detection (LVD), and watchdog timer (WDT) with discrete mode - enabling robust operation in unregulated industrial power environments.

Peripheral integration includes one UART/Synchronous SCI, four independent 16-bit timers (Timer A/C/F/G), AEC (Asynchronous Event Counter), and a dedicated LCD controller driving up to 128 segments via static or 1/2–1/4 duty multiplexing - all mapped into memory space with programmable interrupt vectors and priority levels for deterministic real-time response.

Key Specifications

Pinout & Package

HD64F38024RDV is housed in a 80-pin Fine Pitch Plastic (FP-80A) package with 0.5 mm pitch, 12 × 12 mm body size, and exposed thermal pad - optimized for high-density PCB layouts and thermal dissipation in sealed industrial housings.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F38024R, the HD64F38024RDV offers field-upgradable firmware at minor cost premium; compared with R5F100LEA, it delivers proven H8 ecosystem compatibility and simpler migration path from legacy designs - making HD64F38024RDV optimal for incremental upgrades of existing industrial HMI platforms.

Availability

HD64F38024RDV is available at Aetrix Electronics and suitable for industrial human-machine interfaces, programmable logic controller I/O modules, and motor drive keypad subsystems requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.

Supply support for HD64F38024RDV 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 industrial, automotive, and infrastructure markets.

The HD64F38024RDV belongs to the H8/38024R Group within the H8/300L Super Low Power Series - designed specifically for cost-sensitive, display-integrated embedded control applications demanding Flash programmability and extended temperature operation.

FAQ

What is the maximum operating frequency of the HD64F38024RDV?

The HD64F38024RDV operates at a maximum frequency of 16 MHz when supplied with 4.5–5.5 V. At lower voltages (2.7–4.5 V), the maximum frequency is reduced to 10 MHz per Renesas Electrical Characteristics specifications. This frequency limit ensures stable timing margins for internal Flash access, peripheral synchronization, and interrupt latency guarantees in real-time control applications. The HD64F38024RDV must be clocked using either an external crystal (1–16 MHz) or external clock source applied to OSC1.

Does the HD64F38024RDV support in-system programming (ISP)?

Yes, the HD64F38024RDV supports in-system programming via its on-chip Flash memory (F-ZTAT™ technology). Programming is performed through the on-chip debug interface using standard Renesas E8/E8a emulators or compatible tools - no external UV eraser or parallel programmer is required. The HD64F38024RDV allows full Flash erase and byte/word programming while soldered on the target board, enabling firmware updates during production testing and field maintenance.

What LCD configurations does the HD64F38024RDV support?

The HD64F38024RDV integrates a dedicated LCD controller supporting static, 1/2-duty, and 1/4-duty multiplexed displays with up to 32 segments and 4 commons - enabling up to 128 display elements. It provides programmable frame frequency (30–120 Hz), internal bias generation, and software-controllable contrast control. The HD64F38024RDV does not support 1/8-duty or higher multiplexing, nor graphic dot-matrix LCDs; it is optimized for alphanumeric character and symbol displays common in industrial HMIs.

Is the HD64F38024RDV pin-compatible with other H8/38024 family members?

Yes, the HD64F38024RDV shares identical pinout and package (FP-80A) with all members of the H8/38024 Group, including HD64F38024R, HD64F38024S, and HD64F38124. Pin functions, power domains, and peripheral mappings are consistent across these variants - allowing hardware design reuse when migrating between Flash, mask ROM, or different memory sizes. However, firmware must be verified for memory size and feature availability differences before substitution.

What is the operating temperature range specified for the HD64F38024RDV?

The HD64F38024RDV is rated for –40 to +85°C ambient temperature (WTR grade), as confirmed in the H8/38024 Group Hardware Manual Rev. 8.00. This extended temperature range qualifies the device for use in industrial control cabinets, outdoor metering enclosures, and factory automation equipment where ambient conditions exceed commercial-grade limits. The HD64F38024RDV incorporates on-chip LVD and POR circuits calibrated across this full range to ensure reliable startup and brown-out recovery.