Renesas HD64F3048VF8

Overview

HD64F3048VF8 from Renesas (formerly Hitachi) is a 16-bit H8/300H-series microcontroller with on-chip 128 KB flash memory, 4 KB RAM, and integrated peripherals including ITU timers, SCI serial interface, 10-bit ADC, and DMAC. It operates at up to 16 MHz, supports multiple low-power modes (Sleep, Software Standby, Hardware Standby), and targets industrial motor control and telecom applications.

For engineers reviewing the HD64F3048VF8 datasheet, HD64F3048VF8 pinout, HD64F3048VF8 application, or HD64F3048VF8 equivalent, key selection criteria include its 100-pin QFP package, software-controllable peripheral stop (PSTOP register), clock gearing (1/1–1/8 division), and H8/300H-compatible instruction set with 32-bit register support and TRAPA software interrupt capability.

Technical Context

The HD64F3048VF8 implements the H8/300H CPU core with eight 32-bit general-purpose registers (ER0–ER7), full 24-bit linear addressing (16 MB space), and dual-mode interrupt controller supporting both H8/300 compatibility and advanced nested priority (UI bit + IPR registers). Its architecture enables efficient C compilation via register-optimized code generation and dense instruction encoding (50% of instructions are 2-byte).

It integrates a Bus State Controller (BSC) for DRAM/PSRAM interfacing, a Direct Memory Access Controller (DMAC) supporting short/full address modes and DMA interrupts, and an Integrated Timer Unit (ITU) with PWM, input capture, output compare, and phase counting - all controllable in module standby via PSTOP register bits.

Key Specifications

Pinout & Package

HD64F3048VF8 is housed in a 100-pin plastic quad flat package (QFP) with 0.5 mm pitch, compliant with JEDEC MS-026. Pin assignments follow the H8/300H standard layout for address/data bus multiplexing, peripheral I/O mapping, and power/ground distribution across four sides.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F3048VF8, HD64F3044FV offers reduced memory and peripheral set at lower cost but sacrifices TPC and full module standby granularity; R5F33048FDFP provides modern ultra-low-power operation and larger RAM but abandons H8/300H software compatibility and requires complete firmware rework.

Availability

HD64F3048VF8 is available at Aetrix Electronics and suitable for industrial motor control, telecom infrastructure, consumer AV interfaces, and battery-powered data logging requiring stable component supply and long-term production continuity.

Supply support for HD64F3048VF8 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 (formerly Hitachi Semiconductor) is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The HD64F3048VF8 belongs to the H8/300H microcontroller family, designed for high-performance embedded control in resource-constrained systems where code density, real-time responsiveness, and flexible power management are critical.

FAQ

What is the maximum operating frequency of the HD64F3048VF8?

The HD64F3048VF8 supports a maximum system clock frequency of 16 MHz. Its internal clock gearing feature allows software-controlled division by 1, 2, 4, or 8 - enabling dynamic adjustment between full-speed operation (16 MHz) and reduced-power modes (e.g., 2 MHz or 1 MHz) without external clock changes. This capability is implemented via the CKCR register and directly affects CPU instruction throughput and peripheral timing accuracy.

Does the HD64F3048VF8 include on-chip flash memory, and what is its capacity?

Yes, the HD64F3048VF8 integrates 128 KB of on-chip F-ZTAT flash memory. This flash supports in-system programming (ISP) and sector erase operations, allowing firmware updates in the target application without removing the HD64F3048VF8 from the board. The memory is organized to support boot loader implementation and dual-bank operation for safe over-the-air updates.

How does the HD64F3048VF8 manage power in battery-operated applications?

The HD64F3048VF8 provides three distinct low-power states: Sleep mode (CPU halted, peripherals active), Software Standby (oscillator stopped, 5 µA max current, 2 V data retention), and Hardware Standby (pin-triggered, 5 µA max). Additionally, the PSTOP register enables per-module standby - allowing selective shutdown of ITU, SCI, DMAC, ADC, and refresh controller while retaining RAM and I/O states - making HD64F3048VF8 highly effective in intermittent-sensing applications.

What peripheral interfaces are integrated into the HD64F3048VF8?

The HD64F3048VF8 integrates a 10-bit ADC with 10 input channels, two independent SCI serial interfaces (SCI0 and SCI1), an 8-channel DMAC, an Integrated Timer Unit (ITU) with PWM and input capture, a Timing Pattern Controller (TPC) for stepper motor control, and a Watchdog Timer (WDT). All peripherals are memory-mapped and accessible via the H8/300H bus interface, with dedicated I/O pins routed to ports P1–P7 and P10–P19.

Is the HD64F3048VF8 pin-compatible with other H8/300H-series microcontrollers?

The HD64F3048VF8 uses a 100-pin QFP package consistent with the H8/3042 and H8/3044 variants, but it is not fully pin-compatible across the entire H8/300H family. While core signal assignments (power, clock, reset, IRQ, bus) align, peripheral I/O pin mappings - especially for ITU outputs, SCI lines, and ADC inputs - differ between models due to varying peripheral sets and routing constraints. Engineers must verify pin function tables in the HD64F3048VF8 datasheet before substituting.