Renesas DF2140BVTE10V

Overview

DF2140BVTE10V from Renesas Electronics is a 16-bit single-chip microcontroller (MCU) in the H8S/2140B Group, featuring an H8S/2000 CPU core, 64 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, DTC, and X-bus/LPC host interfaces. It targets embedded control in industrial and consumer systems requiring deterministic real-time response.

For engineers reviewing the DF2140BVTE10V datasheet, DF2140BVTE10V pinout, DF2140BVTE10V application, or DF2140BVTE10V equivalent, key selection criteria include its 64 KB flash + 4 KB RAM memory configuration, 10-bit ADC resolution with sample-and-hold, dual PWM timer architecture supporting motor control waveforms, and support for both X-bus and LPC host interface protocols in a 144-pin LQFP package.

Technical Context

The DF2140BVTE10V implements the H8S/2000 32-bit internal architecture with sixteen 16-bit general-purpose registers and a linear 16-Mbyte address space. Its CPU supports high-speed instruction execution via an optimized RISC-like instruction set, including bit manipulation instructions (BIAND, BIOR) and conditional branching with carry flag interaction.

On-chip peripheral integration includes a data transfer controller (DTC) operating as a bus master for autonomous memory-to-peripheral transfers, dual PWM modules (8-bit PWM and 14-bit PWMX) with complementary output capability, and dual serial interfaces - SCI for UART/Smart Card modes and I²C for multi-master slave communication - all accessible via dedicated I/O pins with configurable alternate functions.

Key Specifications

Pinout & Package

DF2140BVTE10V is housed in a 144-pin LQFP (14.0 × 14.0 mm) package with exposed thermal pad. Pin functions are defined across multiple operating modes (normal, low-power, debug), with multiplexed I/O supporting peripheral assignment including X-bus data/address lines, LPC signals (LPCPD, CLKRUN, PME), and wake-up event inputs (WUE0–WUE7).

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F2141BV and HD64F2145BV, DF2140BVTE10V provides optimal balance of cost, footprint, and feature set for mid-complexity embedded controllers where 64 KB flash and 4 KB RAM meet functional requirements without over-provisioning.

Availability

DF2140BVTE10V is available at Aetrix Electronics and suitable for industrial motor control, embedded HMI, legacy system emulation, and industrial data acquisition gateway applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for DF2140BVTE10V 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 automotive, industrial, and enterprise applications.

The H8S/2140B Group was designed for cost-sensitive, real-time embedded control in industrial equipment and consumer electronics, emphasizing peripheral integration, low-power operation, and compatibility with legacy PC architectures via X-bus and LPC interfaces.

FAQ

What is the maximum operating frequency of the DF2140BVTE10V?

The DF2140BVTE10V operates at a maximum CPU clock frequency of 25 MHz under standard conditions (Vcc = 3.3 V, Ta = −20 to +75°C). This enables instruction execution at up to 25 million cycles per second, with key peripherals like the 10-bit ADC and PWM timers synchronized to derived clocks meeting their respective timing specifications as defined in the H8S/2140B Group Hardware Manual Rev. 3.00.

Does DF2140BVTE10V support in-circuit debugging?

Yes, DF2140BVTE10V supports in-circuit debugging via the on-chip debug interface compatible with Renesas E8/E8a emulators and High-performance Embedded Workshop. The MCU includes dedicated debug pins (BKIN/BKOUT) and hardware breakpoints, allowing full visibility into register states, memory contents, and real-time execution flow without requiring external JTAG adapters or intrusive probe hardware.

Is the DF2140BVTE10V pin-compatible with other H8S/2140B Group members?

DF2140BVTE10V shares the same 144-pin LQFP package and core pinout with HD64F2141BV and HD64F2148BV, including identical mappings for power, reset, clock, X-bus, and primary peripheral signals. However, LPC-specific pins (P80–P83) and certain WUE functions differ in availability across variants, so board-level compatibility requires verification against the specific target variant's pin function table in Section 1.3.2 of the Hardware Manual.

What is the role of the F-ZTAT™ technology in DF2140BVTE10V?

F-ZTAT™ (Fast Zero Time Auto-Test) is Renesas' proprietary flash programming technology embedded in DF2140BVTE10V. It enables ultra-fast in-system programming with zero wait-state write cycles, full erase/program verification, and immunity to voltage dips during programming - critical for field firmware updates in industrial environments where power stability cannot be guaranteed.

Can DF2140BVTE10V operate in low-power modes suitable for battery-powered devices?

Yes, DF2140BVTE10V supports multiple low-power modes including Sleep, Deep Sleep, and Software Stop, achieving sub-10 µA standby current with wake-up capability via WUE0–WUE7 pins, RTC alarm, or external interrupts. The keyboard buffer controller and dedicated wake-up event mask registers (WUEMRB) allow selective activation of only required inputs, making DF2140BVTE10V suitable for energy-constrained portable and remote sensing applications.