Renesas D12320VF25IV

Overview

D12320VF25IV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8S/2320 Group, featuring an H8S/2000 CPU core, 128 KB on-chip flash memory (F-ZTAT™), 8 KB RAM, 16-bit TPU timer, SCI serial interface, and A/D converter. It operates at up to 25 MHz with 3.3 V supply and supports ROM-enabled expansion mode for external memory interfacing - used in industrial control panels requiring deterministic real-time response.

For engineers reviewing the D12320VF25IV datasheet, D12320VF25IV pinout, D12320VF25IV application, or D12320VF25IV equivalent, this page delivers verified technical context, package mapping, functional alternatives, and supply-chain-ready availability details - all grounded in Renesas' official H8S/2329 Group Hardware Manual Rev.6.00 (2007).

Technical Context

The D12320VF25IV implements the H8S/2000 32-bit internal architecture with 16-bit external bus interface, supporting multiple operating modes controlled by MD0–MD2 pins. Its flash memory enables in-system reprogramming ≥100 times with 10-year data retention and ≤200 ms/128-byte programming time.

It integrates a 16-bit timer pulse unit (TPU) with input capture/output compare, a watchdog timer (WDT), DMA controller (DMAC), and 10-bit A/D converter with 8-channel multiplexing. The SCI supports asynchronous communication with programmable baud rates up to 38.4 kbps at 25 MHz φ-clock.

Key Specifications

Pinout & Package

Package: FP-128B (Fine Pitch Plastic Quad Flat Package, 128-pin, 0.5 mm pitch, 14 mm × 20 mm body).

Key Features

Applications

Equivalent & Alternatives

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

Compared with D12320VF25IV, HD64F2328B offers reduced flash but identical timing and interface behavior, while HD64F2329B extends code capacity without altering pin compatibility or real-time performance - enabling scalable firmware development across product tiers.

Availability

D12320VF25IV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control boards, building automation gateways, and test equipment front-end controllers requiring stable component supply across multi-year production cycles.

Supply support for D12320VF25IV 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/2320 Group, including D12320VF25IV, was designed for cost-sensitive, high-reliability embedded control applications in factory automation, HVAC, and instrumentation - emphasizing flash flexibility, deterministic timing, and industrial temperature operation.

FAQ

What is the maximum operating frequency of the D12320VF25IV?

The D12320VF25IV operates at a maximum frequency of 25 MHz, as confirmed in the H8S/2329 Group Hardware Manual Rev.6.00 (2007), Section 14.2.8. This clock speed governs instruction execution, peripheral timing, and SCI baud rate generation. The D12320VF25IV requires a stable 25 MHz external crystal or oscillator connected to the XIN/XOUT pins, with proper load capacitance matching per Renesas layout recommendations.

Does the D12320VF25IV support in-system programming of its flash memory?

Yes, the D12320VF25IV features F-ZTAT™ flash memory that supports in-system programming with ≥100 rewrite cycles, 10-year data retention, and ≤200 ms/128-byte programming time. This capability is documented in Section 22.2.6 of the H8S/2329 Group Hardware Manual. The D12320VF25IV does not require external programming hardware - firmware updates can be performed via SCI or custom bootloader using on-chip flash routines.

What package type is used for the D12320VF25IV?

The D12320VF25IV is packaged in the FP-128B (Fine Pitch Plastic Quad Flat Package) with 128 pins, 0.5 mm pitch, and 14 mm × 20 mm body dimensions. This is verified in Appendix F of the H8S/2329 Group Hardware Manual Rev.6.00, Figure F.2. The FP-128B package is RoHS-compliant and supports standard reflow soldering profiles for surface-mount assembly.

How many A/D input channels does the D12320VF25IV provide?

The D12320VF25IV integrates a 10-bit successive-approximation A/D converter with 8 multiplexed input channels, as specified in Section 19.13 of the H8S/2329 Group Hardware Manual. These channels support single-ended or differential sampling, with conversion times configurable down to 1.5 µs per sample - suitable for real-time sensor monitoring in industrial control applications.

Is the D12320VF25IV pin-compatible with other H8S/232x devices?

The D12320VF25IV uses the FP-128B package and shares identical pin assignments with other H8S/232x Group members like HD64F2328B and HD64F2329B, as shown in Figures 1.4 and 1.8 of the H8S/2329 Group Hardware Manual. While pinout is consistent, users must verify mode-select (MD0–MD2) configuration and flash size constraints before substitution - the D12320VF25IV is functionally aligned with the H8S/2328 Group.