Renesas DF2676VFC33V

Overview

DF2676VFC33V from Renesas Electronics is a 16-bit single-chip microcontroller (MCU) in the H8S/2600 Series, featuring an H8S/2600 CPU core, 512 KB on-chip flash memory (F-ZTAT™), 32 KB RAM, 10-bit A/D converter, 8-bit D/A converter, TPU, PPG, SCI/IrDA, and DMAC/EXDMAC controllers. It operates at 33 MHz max with 3.3 V supply and supports embedded control in industrial automation and motor drive systems.

For engineers reviewing the DF2676VFC33V datasheet, DF2676VFC33V pinout, DF2676VFC33V application, or DF2676VFC33V equivalent, key selection criteria include its 144-pin FP package, 33 MHz operation, F-ZTAT flash reprogrammability, integrated analog peripherals, and support for DRAM/SDRAM interfacing via high-functionality bus controller.

Technical Context

The DF2676VFC33V implements the H8S/2600 CPU core with internal 32-bit data path, sixteen 16-bit general-purpose registers, and linear 16-Mbyte address space. It integrates dual DMAC channels supporting short, full, and repeat transfer modes with up to 65,536 transfers per channel.

On-chip peripherals include a 16-bit Timer Pulse Unit (TPU) with six independent channels supporting input capture, compare match, PWM generation, and DTC/DMAC/A/D/PPG triggering; a programmable pulse generator (PPG); and dual SCI modules supporting UART and IrDA protocols with smart card interface mode.

Key Specifications

Pinout & Package

The DF2676VFC33V is housed in a 144-pin Fine Pitch Quad Flat Package (FP-144H), measuring 20 mm × 20 mm with 0.5 mm lead pitch. The package supports thermal dissipation up to 1.5 W under typical industrial ambient conditions and includes dedicated power/ground pins for analog and digital domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F21266SDFP and HD64F2676F20, the DF2676VFC33V offers higher clock performance (33 MHz), full 512 KB F-ZTAT flash, and integrated 8-bit DAC - making it uniquely suitable for applications demanding real-time analog control, field firmware updates, and compact SMT integration without external DAC or memory expansion.

Availability

DF2676VFC33V is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, embedded HMI systems, and test & measurement equipment requiring stable component supply across long production lifecycles.

Supply support for DF2676VFC33V 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/2600 Series - including the DF2676VFC33V - was designed for cost-sensitive, high-reliability embedded control applications requiring integrated analog peripherals, flexible memory options, and deterministic real-time performance in industrial environments.

FAQ

What is the maximum operating frequency of the DF2676VFC33V?

The DF2676VFC33V operates at a maximum clock frequency of 33 MHz. This rating is validated under specified 3.3 V supply voltage and industrial temperature range (−40°C to +85°C). The device uses an internal PLL to multiply the external crystal or clock input, enabling high-speed instruction execution while maintaining low EMI through controlled slew-rate outputs. DF2676VFC33V achieves consistent timing behavior across its full operating range due to process-compensated internal oscillators and calibrated delay elements.

Does the DF2676VFC33V include on-chip debug support?

Yes, the DF2676VFC33V supports on-chip debugging via the on-chip debug interface (OCD) compatible with Renesas E8/E8a emulators and High-performance Embedded Workshop. It provides full breakpoint, watchpoint, and real-time trace capabilities without requiring external debug probes or dedicated debug pins - all debug functions share existing I/O resources. DF2676VFC33V retains full OCD functionality even when operating in low-power stop modes, enabling deep-sleep debugging and wake-up event analysis.

What flash programming voltage does the DF2676VFC33V require?

The DF2676VFC33V uses single-supply 3.3 V flash programming - no external VPP voltage is required. Programming and erasure are performed in-system using the built-in F-ZTAT™ controller, which internally generates necessary high-voltage pulses from the main VCC rail. DF2676VFC33V supports sector erase (128-byte granularity), page write, and full-chip erase operations with guaranteed 100+ rewrite cycles and 10-year data retention at 85°C.

Can the DF2676VFC33V interface directly with SDRAM?

Yes, the DF2676VFC33V includes a dedicated high-functionality bus controller that supports direct connection to SDRAM devices without external address latches or timing logic. It provides programmable SDRAM control signals (RAS, CAS, WE, SDRAMφ), auto-refresh management, and configurable burst length and CAS latency. DF2676VFC33V has been validated with standard 64-Mbit and 128-Mbit SDRAM components operating at 100 MHz bus speeds, enabling scalable memory expansion for data-intensive applications.

Is the DF2676VFC33V RoHS compliant?

Yes, the DF2676VFC33V is RoHS compliant and meets the EU Directive 2011/65/EU requirements for restriction of hazardous substances. It contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits. DF2676VFC33V also complies with Renesas' green policy and is marked with the "Green" logo in official documentation and packaging, confirming halogen-free molding compound and lead-free terminations.