Renesas D12670VFC33V

Overview

D12670VFC33V from Renesas Electronics is a 16-bit single-chip microcontroller (MCU) in the H8S/2600 Series, featuring an H8S/2600 CPU core with 16-Mbyte linear address space, 10-bit A/D converter, 8-bit D/A converter, and integrated TPU, PPG, SCI, IrDA, WDT, DMAC/EXDMAC, DTC, and high-functionality bus controller for DRAM/SDRAM interfacing. It supports F-ZTAT™ flash memory and operates at up to 25 MHz.

For engineers reviewing the D12670VFC33V datasheet, D12670VFC33V pinout, D12670VFC33V application, or D12670VFC33V equivalent, key selection criteria include its 144-pin FP package, 3.3 V supply operation, on-chip flash reprogrammability, dual-address-mode DMAC, and TPU-triggered A/D conversion capability in industrial control and embedded instrumentation designs.

Technical Context

The D12670VFC33V implements the H8S/2600 CPU with sixteen 16-bit general-purpose registers and a 32-bit internal data path, supporting both normal and advanced operating modes. Its peripheral set includes a 16-bit timer pulse unit (TPU) with six channels capable of compare match, input capture, and DTC/DMAC activation, plus programmable pulse generation (PPG) triggered by TPU compare events.

It integrates a direct memory access controller (DMAC) with dual-channel operation supporting short, idle, and repeat transfer modes, and a full-address-mode EXDMAC with auto-request burst/cycle-steal capability. The bus controller enables seamless interface to external SDRAM via configurable RAS/CAS timing and clock synchronization (SDRAMφ).

Key Specifications

Pinout & Package

Package: 144-pin Fine-Pitch Plastic Quad Flat Package (FP-144H), 20 mm × 20 mm, 0.5 mm pitch, lead-free compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F2676FV and R5F21266SDFP, the D12670VFC33V uniquely combines 3.3 V operation, F-ZTAT™ flash reprogrammability, SDRAM bus controller, and TPU-triggered A/D - making it optimal for performance-oriented industrial controllers requiring field-upgradable firmware and external memory expansion.

Availability

D12670VFC33V is available at Aetrix Electronics and suitable for industrial PLC I/O modules, embedded data loggers, medical instrumentation front-ends, test & measurement equipment, and factory automation gateways requiring stable component supply across multi-year production cycles.

Supply support for D12670VFC33V 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 headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.

The D12670VFC33V belongs to the H8S/2600 Series - a family of 16-bit MCUs designed for deterministic real-time control in industrial automation, instrumentation, and embedded systems requiring integrated peripherals, external memory support, and field-programmable flash.

FAQ

What is the maximum operating frequency of the D12670VFC33V?

The D12670VFC33V supports a maximum system clock frequency of 25 MHz, achievable using either an external 8–25 MHz crystal resonator connected to EXTAL/XTAL pins or an external clock signal applied to the CLK pin. This frequency enables sub-microsecond interrupt response and tight real-time control loop execution in applications such as motor control and data acquisition.

Does the D12670VFC33V include on-chip flash memory, and is it reprogrammable?

Yes, the D12670VFC33V features on-chip F-ZTAT™ flash memory, which is fully reprogrammable in-system without requiring UV erasure or socket removal. According to Renesas documentation, it guarantees ≥100 rewrite cycles with 10-year data retention under specified conditions, making the D12670VFC33V suitable for applications requiring field firmware updates or configuration changes.

Can the D12670VFC33V interface directly with SDRAM, and what timing controls are available?

Yes, the D12670VFC33V integrates a high-functionality bus controller supporting direct SDRAM interfacing via dedicated pins including SDRAMφ, RAS, CAS, WE, and DQML/DQMU. Programmable timing registers allow configuration of RAS-to-CAS delay, precharge time, and refresh intervals, enabling reliable operation with standard 3.3 V SDRAM components without external glue logic.

How does the TPU in the D12670VFC33V support A/D conversion triggering?

The TPU in the D12670VFC33V provides hardware-level A/D conversion trigger capability: any of its six channels can generate a trigger signal upon compare match or input capture event. This allows precise, jitter-free synchronization between timer-based control actions (e.g., PWM edge) and analog sampling - a feature explicitly documented in the D12670VFC33V hardware manual for deterministic data acquisition.

What is the function of the FWE and MD2–MD0 pins on the D12670VFC33V?

The FWE (Flash Write Enable) and MD2–MD0 (Mode Select) pins on the D12670VFC33V configure the device's boot and programming modes. FWE enables flash programming/erasing when asserted, while MD2–MD0 select between user program mode, boot mode, and flash programming mode - critical for safe in-system firmware updates and initial device initialization as defined in the D12670VFC33V hardware manual.