Renesas DF2148BVFA10V

Overview

DF2148BVFA10V from Renesas Electronics is a 16-bit H8S/2148B Group microcontroller featuring an H8S/2000 CPU core, 128 KB on-chip Flash ROM (F-ZTAT™), 4 KB RAM, 10-bit A/D converter, 8-bit D/A converter, and integrated peripherals including SCI, I²C, PWM timers (8-bit and 14-bit), FRT, WDT, and X-bus interface. It targets embedded control in office equipment and industrial automation.

For engineers reviewing the DF2148BVFA10V datasheet, DF2148BVFA10V pinout, DF2148BVFA10V application, or DF2148BVFA10V equivalent, key selection criteria include its 128 KB reprogrammable Flash memory, 4 KB RAM, 10-bit A/D resolution, support for X-bus expansion, and absence of LPC interface - confirmed for this specific variant.

Technical Context

The DF2148BVFA10V implements the H8S/2000 CPU with a 32-bit internal architecture, sixteen 16-bit general-purpose registers, and a 16-Mbyte linear address space. It integrates a data transfer controller (DTC) operating as a bus master for efficient peripheral-to-memory transfers without CPU intervention.

Its on-chip peripheral set includes dual PWM timers (8-bit PWM and 14-bit PWMX), a 16-bit free-running timer (FRT), watchdog timer (WDT), serial communication interface (SCI), I²C bus interface, keyboard buffer controller, and X-bus host interface - but explicitly excludes LPC interface and WUE pin functionality per official revision notes.

Key Specifications

Pinout & Package

DF2148BVFA10V is housed in a 144-pin LQFP package (14.0 × 14.0 mm) with 0.5 mm pitch, compliant with JEDEC MO-220 standard. Pin functions are defined across 12 I/O ports (P0–P11), each configurable for general-purpose I/O or alternate peripheral roles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F2140BV, DF2148BVFA10V offers double Flash capacity and field-programmability; versus HD64F2145BV, it trades 128 KB Flash and 4 KB RAM for guaranteed absence of LPC complexity and lower BOM cost.

Availability

DF2148BVFA10V is available at Aetrix Electronics and suitable for office equipment, industrial motor drives, and embedded HMI panels requiring stable component supply and long-term manufacturing continuity.

Supply support for DF2148BVFA10V 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and consumer markets.

The H8S/2148B Group was designed for cost-effective, high-integration embedded control in standard-grade applications such as office automation and industrial equipment - emphasizing Flash flexibility, analog integration, and X-bus expandability.

FAQ

What is the maximum operating frequency of the DF2148BVFA10V?

The DF2148BVFA10V operates with a maximum system clock frequency of 20 MHz when using an external crystal connected to XTAL/EXTAL pins. Internal clock dividers allow lower-frequency operation for power-sensitive applications. The H8S/2000 CPU core sustains instruction throughput consistent with this clock rate, and all timing specifications in the hardware manual - including A/D conversion time and PWM resolution - are validated up to 20 MHz. DF2148BVFA10V does not support PLL-based frequency multiplication.

Does the DF2148BVFA10V support the LPC interface?

No, the DF2148BVFA10V explicitly omits LPC interface functionality. Revision notes in the H8S/2140B Group Hardware Manual (Rev. 3.00, March 2006) state that "the LPC function is not supported by H8S/2148B" and confirm that pins P80, P82, and P83 retain alternate functions (HA0/PME, HIFSD/CLKRUN, LPCPD) but do not implement LPC protocol signaling. DF2148BVFA10V relies solely on the X-bus interface for host peripheral expansion.

What package type and dimensions does the DF2148BVFA10V use?

The DF2148BVFA10V is packaged in a 144-pin LQFP (Low-profile Quad Flat Package) measuring 14.0 mm × 14.0 mm with 0.5 mm lead pitch, conforming to JEDEC MO-220 standard. This compact footprint supports high-density PCB layouts while maintaining hand-soldering feasibility. Thermal characteristics and soldering profiles align with standard reflow processes for lead-free assembly. DF2148BVFA10V shares this package with other H8S/214x series variants, enabling layout reuse across compatible members.

Is the DF2148BVFA10V RoHS compliant?

Yes, the DF2148BVFA10V complies with the EU RoHS Directive, restricting lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. Renesas Electronics confirms environmental compliance in product documentation and provides material declarations upon request. DF2148BVFA10V is manufactured using lead-free terminations and halogen-free molding compounds, meeting both RoHS and REACH requirements. Customers must verify final system-level compliance based on full BOM and assembly process.

What is the purpose of the WUE pins on the DF2148BVFA10V?

The DF2148BVFA10V does not implement Wake-Up Event (WUE) functionality. Official documentation states "the WUE pin function is not supported by the H8S/2148B", and associated pins (e.g., PB0–PB7 configured as WUE0–WUE7 in other variants) serve only as general-purpose I/O or alternate peripheral signals in DF2148BVFA10V. Any reference to WUE capability in shared family descriptions does not apply to this part. DF2148BVFA10V uses standard interrupt sources (SCI, timer, external pins) for wake-up from low-power modes.