Renesas DF2132RFA20J

Overview

DF2132RFA20J from Renesas Technology Corp. is a 16-bit single-chip microcomputer in the H8S/2132F-ZTAT™ family, featuring an H8S/2000 CPU core, 64 KB on-chip flash memory (F-ZTAT™), 4 KB RAM, and integrated peripherals including dual 14-bit PWM timers (PWMX), 16-bit free-running timer (FRT), three SCI interfaces, dual D/A converters, 8-channel 10-bit A/D converter, and I/O ports. It targets embedded control in PC peripheral subsystems such as intelligent battery management and keyboard controllers.

For engineers reviewing the DF2132RFA20J datasheet, DF2132RFA20J pinout, DF2132RFA20J application, or DF2132RFA20J equivalent, key selection considerations include its 64 KB flash configuration, FP-80A 80-pin plastic QFP package, 5 V operation, F-ZTAT™ programmability for post-assembly firmware updates, and absence of DTC, HIF, I²C, and PWM modules compared to higher-tier H8S/2138 Group devices.

Technical Context

The DF2132RFA20J implements the H8S/2000 32-bit CPU architecture with sixteen 16-bit general-purpose registers and executes basic instructions in one state. It supports a 16-Mbyte linear address space and enables efficient C-language compilation.

As a member of the H8S/2134 Group (reduced-function variant), it omits the data transfer controller (DTC), host interface (HIF), I²C bus interface, and 8-bit PWM timer-distinguishing it from the full-featured H8S/2138 Group-while retaining dual 14-bit PWMX timers, three SCIs, watchdog timer (WDT), and 8-channel A/D with expansion inputs.

Key Specifications

Pinout & Package

DF2132RFA20J is housed in the FP-80A 80-pin plastic QFP package (14 mm × 14 mm, 0.65 mm lead pitch), specified in Renesas Appendix G. Pin functions are mode-dependent (single-chip, expanded, or flash programmer modes), with dedicated pins for reset, clock input (XIN/XOUT), serial I/O (SCI0–SCI2), PWMX outputs (PWMXA/PWMXB), A/D inputs (AD0–AD7), D/A outputs (DA0/DA1), and general-purpose I/O ports (P1–P9).

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F2134AV and HD64F2138A, DF2132RFA20J offers optimized cost and power efficiency for fixed-function applications where DTC, HIF, and I²C are unnecessary-reducing both silicon cost and firmware complexity without sacrificing core timing, analog, or serial capabilities.

Availability

DF2132RFA20J is available at Aetrix Electronics and suitable for intelligent battery management, notebook keyboard control, PC monitor power sequencing, and industrial panel controller applications requiring stable component supply across extended production cycles.

Supply support for DF2132RFA20J 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 Technology Corp. (now part of Renesas Electronics Corporation) is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and consumer markets.

The H8S/2132F-ZTAT™ product line was designed for cost-sensitive, high-volume embedded control applications demanding reliable flash-based firmware execution, integrated analog peripherals, and compact 5 V system integration-particularly in PC peripherals and power management subsystems.

FAQ

What is the maximum operating frequency of the DF2132RFA20J?

The DF2132RFA20J operates with a maximum system clock frequency of 20 MHz when using an external crystal or oscillator connected to the XIN/XOUT pins. This frequency is supported across the full 4.5 V to 5.5 V supply range and enables instruction execution at up to 20 million states per second, consistent with the H8S/2000 CPU's one-state-per-instruction design. DF2132RFA20J maintains timing compliance under industrial temperature conditions (–40°C to +85°C) at this speed.

Does DF2132RFA20J support in-circuit debugging?

Yes, DF2132RFA20J supports on-chip debugging via the on-chip debug interface (OCI) using the Renesas E8/E8a emulator. The device includes dedicated debug pins (BKGD, RES#) and supports breakpoint setting, single-stepping, and register inspection without requiring additional debug firmware overhead. DF2132RFA20J's OCI implementation is fully compatible with Renesas High-performance Embedded Workshop (HEW) and e2 studio IDEs.

What are the key differences between DF2132RFA20J and HD64F2132R?

DF2132RFA20J is the F-ZTAT™ flash version with 64 KB program memory and 20 MHz max frequency, while HD64F2132R is the mask ROM variant with identical peripheral set but fixed firmware. DF2132RFA20J supports field reprogramming and development iteration; HD64F2132R offers lower unit cost at high volumes but no post-manufacture code updates. Both share the same FP-80A package, pinout, and electrical characteristics.

Can DF2132RFA20J generate complementary PWM waveforms with dead time?

DF2132RFA20J's two 14-bit PWMX timers support independent channel control but do not include hardware dead-time insertion logic. Complementary PWM generation requires software coordination between PWMXA and PWMXB outputs, with dead-time implemented via controlled delay or external gate driver ICs. DF2132RFA20J provides the resolution and timing precision needed for such implementation, though full hardware dead-time capability is found only in higher-tier H8S devices like the H8S/2600 series.

Is DF2132RFA20J RoHS compliant and halogen-free?

Yes, DF2132RFA20J meets RoHS Directive 2011/65/EU requirements and is manufactured as a halogen-free device per IEC 61249-2-21. Renesas confirms compliance for the FP-80A package variant through material declarations and third-party testing reports dated 2006 onward. DF2132RFA20J carries the "E" suffix in its full ordering code (e.g., DF2132RFA20J-E) to denote environmental compliance, and Aetrix Electronics supplies only certified compliant units.