Renesas DF2368VTE34V

Overview

DF2368VTE34V from Renesas Electronics is a 16-bit single-chip microcontroller (MCU) based on the H8S/2600 CPU core, featuring 512 KB on-chip flash ROM, 32 KB RAM, and integrated peripherals including TPU, PPG, SCI/IrDA, 10-bit ADC, 8-bit DAC, DMAC/DTC, and I²C interface. It operates at up to 33 MHz and targets embedded control in industrial automation and communications equipment.

For engineers reviewing the DF2368VTE34V datasheet, DF2368VTE34V pinout, DF2368VTE34V application, or DF2368VTE34V equivalent, key selection criteria include its F-ZTAT™ flash architecture for field reprogramming, dual-bus master support (DMAC + DTC), and compatibility with H8S/2300-series development tools and software libraries.

Technical Context

The DF2368VTE34V implements the H8S/2600 CPU with a 32-bit internal data path, sixteen 16-bit general-purpose registers, and linear 16-Mbyte addressing. It supports multiple operating modes-including user boot mode, expanded mode, and single-chip activation mode-with configurable memory mapping via SYSCR register bits RAME and EXPE.

Its peripheral set includes a 16-bit Timer Pulse Unit (TPU) with input capture/output compare, Programmable Pulse Generator (PPG), four 8-bit timers, watchdog timer, two serial communication interfaces (SCI), IrDA physical layer support, and dual-channel A/D and D/A converters-all accessible via dedicated I/O ports and memory-mapped registers.

Key Specifications

Pinout & Package

DF2368VTE34V is housed in a 128-pin QFP package (QFP-128*). Power and ground pins are distributed across multiple locations (e.g., Vcc at pins 2, 60, 83, 84; Vss at pins 3, 4, 12, 21, 26, 35, 36, 64, 68, 88, 95, 99, 100) to ensure stable decoupling. Dedicated PLL supply pins (PLLVCC at pin 84, PLLVSS at pin 86) require separate low-noise filtering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF2368VTE34V, HD64F2368F sacrifices field-programmability for lower unit cost, while H8S/2364F reduces peripheral count and flash capacity to meet cost-sensitive designs with less demanding I/O and firmware storage needs.

Availability

DF2368VTE34V is available at Aetrix Electronics and suitable for industrial automation, communications gateway, and test equipment applications requiring stable component supply, long-term lifecycle support, and consistent electrical performance across temperature ranges.

Supply support for DF2368VTE34V 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 enterprise applications.

The H8S/2300 Series-including DF2368VTE34V-was designed for cost-effective, high-integration embedded control in non-safety-critical industrial and communications systems, emphasizing flash flexibility, peripheral richness, and toolchain maturity.

FAQ

What is the maximum operating frequency of the DF2368VTE34V?

The DF2368VTE34V supports a maximum system clock frequency of 33 MHz, achieved using the on-chip PLL with external crystal or oscillator input. The PLL requires dedicated power (PLLVCC/PLLVSS) and stable 0.1 µF decoupling to maintain phase stability and low jitter across temperature and voltage variations. This frequency enables deterministic real-time response for TPU, ADC, and SCI operations in the DF2368VTE34V.

Does the DF2368VTE34V support in-system programming without high voltage?

Yes, the DF2368VTE34V features F-ZTAT™ flash technology, allowing full in-system programming and erasure using only the standard 5 V supply-no external Vpp or high-voltage generator is required. This capability is confirmed in the H8S/2368 Group Hardware Manual Rev.6.00 and enables safe, reliable firmware updates in deployed DF2368VTE34V-based systems.

How many serial communication interfaces does the DF2368VTE34V include?

The DF2368VTE34V integrates two independent Serial Communication Interface (SCI) modules, each supporting asynchronous communication, LIN bus framing, and IrDA physical layer compliance up to 1.1 Mbps. One SCI channel can be configured for IrDA while the other handles RS-232/RS-485 protocols-both are fully functional in the DF2368VTE34V without shared resources or arbitration overhead.

What is the purpose of the PLLVCC and PLLVSS pins on the DF2368VTE34V?

PLLVCC (pin 84) and PLLVSS (pin 86) provide dedicated analog power and ground for the on-chip PLL circuitry. These pins must be decoupled with 0.1 µF capacitors placed adjacent to the DF2368VTE34V package to suppress switching noise and ensure low-jitter clock generation. Using shared digital Vcc/Vss for PLL operation risks increased phase noise and timing uncertainty in the DF2368VTE34V's 33 MHz output.

Can the DF2368VTE34V operate in boot mode without external memory?

Yes, the DF2368VTE34V supports Mode 3 (Boot mode) where it executes code directly from its 512 KB on-chip flash ROM without requiring external memory. In this configuration, address lines A0–A23 and data lines D0–D15 remain available as general-purpose I/O or peripheral functions, enabling compact, single-chip designs that rely entirely on the DF2368VTE34V's internal resources.