Renesas DF2329EVF25V

Overview

DF2329EVF25V from Renesas Electronics is a 16-bit single-chip microcomputer in the H8S/2329 Group, featuring an H8S/2000 CPU core, 256 KB on-chip F-ZTAT™ flash memory, 16 KB RAM, and integrated peripherals including TPU, SCI, A/D and D/A converters, DMA controller, and watchdog timer. It operates at up to 25 MHz and targets embedded control systems requiring field-programmable nonvolatile storage and real-time I/O handling.

For engineers reviewing the DF2329EVF25V datasheet, DF2329EVF25V pinout, DF2329EVF25V application, or DF2329EVF25V equivalent, this page delivers verified technical context, package mapping, functional pin roles, real-world use cases, and validated alternative options for industrial motor control, HVAC system management, programmable logic controllers, and instrumentation firmware development.

Technical Context

The DF2329EVF25V implements the H8S/2000 32-bit internal architecture with 16-bit external data bus, supporting multiple operating modes (Mode 2–7) selected via MD0–MD2 pins. It integrates a 16-bit Timer Pulse Unit (TPU) with 8 channels, asynchronous serial communication interface (SCI) with programmable baud rates up to 38.4 kbps at 25 MHz, and a 10-bit A/D converter with 16 input channels.

Its flash memory supports ≥100 rewrite cycles with 10-year data retention, 10–200 ms/128-byte programming time, and 50–1000 ms/block erase time. The device uses external clock sources or on-chip oscillator circuits and requires stable VCC = 4.5–5.5 V operation with guaranteed performance across industrial temperature range (–40°C to +85°C).

Key Specifications

Pinout & Package

DF2329EVF25V is housed in a 128-pin FP-128B plastic QFP package (20 mm × 20 mm, 0.5 mm pitch), compliant with JEDEC MS-026. Pin functions are mode-dependent and include multiplexed I/O, address/data bus lines, chip select signals, and dedicated peripheral pins (e.g., TIOCAx, RXD/TXD, ADx).

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F2329B and H8S/2328, the DF2329EVF25V uniquely combines field-upgradable 256 KB flash, industrial temperature rating, and full peripheral integration in the FP-128B package - making it optimal for next-generation embedded controllers requiring long-term firmware maintainability and scalability.

Availability

DF2329EVF25V is available at Aetrix Electronics and suitable for industrial motor control, HVAC system management, and programmable logic controller modules requiring stable component supply, long-lifecycle support, and traceable sourcing.

Supply support for DF2329EVF25V 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 H8S/2329 Group, including DF2329EVF25V, was designed for high-reliability embedded control applications demanding real-time responsiveness, integrated analog I/O, and field-upgradable firmware - particularly in factory automation and building management systems.

FAQ

What is the maximum operating frequency of the DF2329EVF25V?

The DF2329EVF25V operates at a maximum clock frequency of 25 MHz. This specification is guaranteed under industrial temperature conditions (–40°C to +85°C) and 4.5–5.5 V supply voltage. At this frequency, the H8S/2000 CPU core achieves approximately 25 MIPS throughput, enabling deterministic execution of real-time control tasks such as motor commutation and PID loop closure within sub-millisecond intervals. The DF2329EVF25V datasheet confirms timing parameters for all peripherals-including TPU, SCI, and ADC-are fully characterized at 25 MHz.

Does the DF2329EVF25V support in-system programming of its flash memory?

Yes, the DF2329EVF25V features F-ZTAT™ flash memory that supports in-system programming without requiring UV erasure or device removal. It guarantees ≥100 rewrite cycles with 10-year data retention at 85°C. Programming is performed via on-chip command sequences executed from RAM, with typical programming time of 10–200 ms per 128-byte block. The DF2329EVF25V hardware manual specifies dedicated SWE and PSU bits in the flash control register to manage write/erase operations safely.

What package type is used for the DF2329EVF25V?

The DF2329EVF25V is packaged in a 128-pin FP-128B plastic quad flat pack (QFP) measuring 20 mm × 20 mm with 0.5 mm lead pitch. This package is mechanically and electrically identical to the FP-128B variant used across the H8S/2329 Group, including HD64F2329B and H8S/2328. Pinout compatibility enables drop-in replacement within the same package footprint, provided mode configuration and external circuitry align with DF2329EVF25V's F-ZTAT™ flash interface requirements.

How many analog input channels does the DF2329EVF25V ADC support?

The DF2329EVF25V integrates a 10-bit successive approximation register (SAR) ADC with 16 dedicated analog input channels (AD0–AD15). These channels support software-triggered or TPU-synchronized sampling, with configurable sample-and-hold timing and built-in offset/gain calibration registers. The ADC operates across the full industrial temperature range and maintains linearity error within ±1 LSB, making it suitable for precision sensor interfacing in DF2329EVF25V-based measurement systems.

Is the DF2329EVF25V pin-compatible with other H8S/2329 Group devices?

The DF2329EVF25V shares identical pinout and electrical characteristics with other FP-128B-packaged members of the H8S/2329 Group, including H8S/2328 and HD64F2329B. All share the same 128-pin arrangement, I/O voltage levels, and peripheral pin assignments (e.g., TIOCAx, RXD/TXD, ADx). However, functional differences exist: DF2329EVF25V uses F-ZTAT™ flash and lacks WDTOVF functionality present in mask-ROM variants, requiring firmware adaptation for watchdog handling.