Renesas HD64F3334YTF16V

Overview

HD64F3334YTF16V from Renesas Technology Corp. is a 16-bit single-chip microcontroller based on the H8/300 CPU core, featuring 60 KB on-chip flash memory (F-ZTAT™), 2 KB RAM, four 16-bit timers, SCI serial interface, A/D and D/A converters, and I/O ports - designed for embedded control in industrial automation and motor drive systems.

For engineers reviewing the HD64F3334YTF16V datasheet, HD64F3334YTF16V pinout, HD64F3334YTF16V application, or HD64F3334YTF16V equivalent, this page delivers verified package mapping (TFP-80C), confirmed flash programming mode (dual-power-supply, 12 V FVPP), validated reset timing (tRESW ≥ 10 system clock cycles), and real-world peripheral integration details for rapid hardware validation.

Technical Context

The HD64F3334YTF16V implements the H8/300 32-bit internal architecture with 16-bit external data bus, supporting both user programming and boot modes via MD1/FVPP pin control. It integrates a 12-bit A/D converter with 8 channels, a 8-bit D/A converter, and an SCI module compatible with asynchronous communication at up to 1 Mbps.

Its flash memory subsystem uses dual-power-supply architecture: VCC (5 V ±10%) for logic operation and FVPP (12.0 V ±0.6 V) for programming/erase, with dedicated EBR1/EBR2 registers enabling block-level erase control across eight 4–12 KB flash blocks and seven 128–1024 byte sub-blocks.

Key Specifications

Pinout & Package

HD64F3334YTF16V is housed in a TFP-80C (Thin Fine-Pitch Plastic QFP, 80-pin, 12 mm × 12 mm, 0.5 mm pitch) package. Pin functions are defined per the H8/3334Y series specification, with dedicated FVPP/STBY (pin 24), MD1 (pin 23), and RES (pin 5) for flash programming and reset control.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F3334YTF16V, the HD64F3334SF16TF16V removes 12 V dependency at the cost of reduced field update flexibility, while HD64F3337YF16TF16V extends flash and timer resources without altering core timing behavior or I/O structure.

Availability

HD64F3334YTF16V is available at Aetrix Electronics and suitable for industrial motor control, factory automation I/O modules, embedded power supply monitors, and test equipment front-end controllers requiring stable component supply across long-lifecycle production programs.

Supply support for HD64F3334YTF16V 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 Technology Corp. (now part of Renesas Electronics Corporation) is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The HD64F3334YTF16V belongs to the H8/3334Y series - a line of cost-optimized, 5 V-compatible 16-bit MCUs designed for deterministic real-time control in resource-constrained embedded systems.

FAQ

What is the flash programming voltage requirement for HD64F3334YTF16V?

The HD64F3334YTF16V requires a dedicated 12.0 V ±0.6 V supply on the FVPP/STBY pin (pin 24) for flash memory programming and erase operations. This dual-power-supply architecture distinguishes it from single-supply variants like the HD64F3334SF16TF16V, which uses only VCC. Applying 12 V to any other pin - especially MD1 or RES - may cause permanent damage. Always verify FVPP timing per Section 21.1.7 of the Hardware Manual.

Does HD64F3334YTF16V support I²C communication?

No, HD64F3334YTF16V does not include an I²C bus interface. The I²C peripheral is explicitly documented as an option only for the H8/3337 Series (e.g., HD64F3337YF16TF16V), not the H8/3334Y Series. HD64F3334YTF16V provides only an asynchronous SCI interface for serial communication. For I²C functionality, designers must use external level-shifting bridges or select a higher-tier variant from the same family.

What is the maximum operating frequency of HD64F3334YTF16V?

The HD64F3334YTF16V operates at a maximum system clock frequency of 20 MHz, achievable using either a crystal oscillator (1–20 MHz range) or external clock source. At this frequency, the H8/300 core delivers approximately 10 million instructions per second (MIPS). Electrical characteristics including setup/hold times and reset pulse width (tRESW ≥ 10 system clock cycles) are specified under these conditions in Section 23.4 of the Hardware Manual.

How much RAM is available on HD64F3334YTF16V, and where is it mapped?

HD64F3334YTF16V integrates 2 KB of on-chip SRAM, mapped contiguously from address 0x0000 to 0x07FF. This RAM is used for stack operations, global variables, and interrupt service routine context storage. Unlike some variants, it does not include additional RAM banks or configurable wait-state control for RAM access - all accesses complete in a single cycle when operating within rated VCC and temperature ranges.

Is HD64F3334YTF16V RoHS compliant?

HD64F3334YTF16V was manufactured prior to the 2006 RoHS Directive enforcement and does not carry formal RoHS certification. Its packaging (TFP-80C) uses leaded solder finish and contains lead in the die attach and bond wires. For new designs requiring RoHS compliance, Renesas recommends migration to the RH850 or RX family, or verification of legacy part exemptions with regional regulatory authorities before deployment.