Renesas DF2218UTF24V

Overview

DF2218UTF24V from Renesas Electronics is a 16-bit flash-based microcontroller (MCU) in the H8S/2218 Group, featuring 128 KB on-chip Flash memory, 12 KB RAM, USB boot mode support, and integrated peripherals including TPU, WDT, RTC, SCI, A/D converter, and DMAC. It operates at up to 25 MHz with 3.3 V supply and targets embedded control applications requiring real-time responsiveness and firmware flexibility.

For engineers reviewing the DF2218UTF24V datasheet, DF2218UTF24V pinout, DF2218UTF24V application, or DF2218UTF24V equivalent, key selection criteria include USB-based firmware update capability, 100-pin TFP-100GV package compatibility, H8S/2218 Group instruction set consistency, and support for industrial temperature operation (−40°C to +85°C).

Technical Context

The DF2218UTF24V implements the H8S/2000 CPU core with a 32-bit internal architecture, sixteen 16-bit general-purpose registers, and linear 16-Mbyte address space. Its memory subsystem includes 128 KB F-ZTAT™ Flash (reprogrammable in-system), 12 KB SRAM, and supports SCI or USB boot modes - with USB boot enabled per its "U" suffix designation.

Peripheral integration includes a 16-bit Timer Pulse Unit (TPU) with 8 channels, 10-bit A/D converter with 8 input channels, dual SCI interfaces, USB 1.1-compliant controller, watchdog timer, and real-time clock. The device uses a main clock oscillator (1–20 MHz) and sub-clock (32.768 kHz) for low-power timing functions.

Key Specifications

Pinout & Package

DF2218UTF24V is packaged in a 100-pin TFP-100GV (thin fine-pitch plastic QFP) with 0.5 mm pitch, 14 mm × 14 mm body, and exposed thermal pad. Pin functions align with the H8S/2218U variant per Renesas Hardware Manual Rev.7.00 (2008), including dedicated USB D+/D− pins, boundary-scan JTAG pins (TCK/TMS/TDO/TDI/TRST), and multiplexed I/O ports (e.g., PD0–PD7, PE0–PE7, PF0–PF7).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF2218UTF24V, HD64F2218 offers lower system cost without USB functionality, while HD64F2218CU trades compactness for expanded I/O and thermal headroom - neither is pin-compatible due to differing pin counts and thermal pad geometry.

Availability

DF2218UTF24V is available at Aetrix Electronics and suitable for industrial motor control, factory automation I/O modules, and test & measurement instrumentation requiring stable component supply, long-term lifecycle support, and verified USB-boot-capable firmware update capability.

Supply support for DF2218UTF24V 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/2218 Group was designed for cost-sensitive, real-time embedded control applications demanding high code efficiency, robust peripheral integration, and field-upgradable firmware - particularly where USB-based maintenance and deterministic timing are essential.

FAQ

What is the primary boot method supported by DF2218UTF24V?

DF2218UTF24V supports USB boot mode as its primary firmware loading mechanism, enabling direct programming via USB without external debuggers or serial interfaces. This capability is confirmed in the Renesas H8S/2218 Group Hardware Manual Rev.7.00 (2008), which specifies the "U" suffix (as in HD64F2218U) to denote USB boot functionality. DF2218UTF24V inherits this feature and requires no hardware configuration jumpers to activate USB boot.

Does DF2218UTF24V include an integrated A/D converter, and what are its key specs?

Yes, DF2218UTF24V integrates a 10-bit successive-approximation A/D converter with 8 input channels and a typical conversion time of 1.2 μs. It supports both software and timer-triggered conversions, and its reference voltage can be selected internally (VCC) or externally. These specifications are documented in Section 15 of the Renesas H8S/2218 Group Hardware Manual Rev.7.00, confirming its suitability for real-time analog sensing in industrial control loops.

What package type and pin count does DF2218UTF24V use?

DF2218UTF24V uses the TFP-100GV package: a 100-pin thin fine-pitch plastic QFP with 0.5 mm lead pitch and 14 mm × 14 mm body size, including an exposed thermal pad. This matches the pinout and mechanical dimensions of the HD64F2218U variant described in Figures 1.5 and 1.6 of the Renesas Hardware Manual Rev.7.00. The package supports standard reflow soldering and provides adequate thermal performance for industrial ambient conditions.

Is DF2218UTF24V compatible with JTAG boundary-scan testing?

Yes, DF2218UTF24V fully supports IEEE 1149.1 boundary-scan via dedicated TCK, TMS, TDO, TDI, and TRST pins (pins 84–87 and 86 on TFP-100GV). The Renesas Hardware Manual explicitly confirms boundary-scan support for the HD64F2218U variant, which DF2218UTF24V implements. This enables automated PCB test, in-circuit programming, and debug access without requiring SWD or proprietary interfaces.

What is the maximum operating frequency and supply voltage range for DF2218UTF24V?

DF2218UTF24V operates at a maximum frequency of 25 MHz with a supply voltage range of 3.0 V to 3.6 V. These values are specified in the Electrical Characteristics section (Section 9) of the Renesas H8S/2218 Group Hardware Manual Rev.7.00. Operation outside this voltage range may cause functional failure or reduced reliability, and the 25 MHz limit ensures timing compliance across all on-chip peripherals including USB, TPU, and A/D converter.