Renesas DF2398F20V

Overview

DF2398F20V from Renesas Electronics is a 16-bit single-chip microcomputer in the H8S/2398F-ZTAT™ family, featuring an H8S/2000 CPU core, 512 KB on-chip F-ZTAT™ flash memory, 32 KB RAM, and integrated peripherals including SCI, A/D and D/A converters, PPG, timers, and DTC. It operates at 20 MHz with 5 V supply and targets embedded control in industrial automation and motor drive systems.

For engineers reviewing the DF2398F20V datasheet, DF2398F20V pinout, DF2398F20V application, or DF2398F20V equivalent, this page delivers verified technical context, package mapping to FP-128B (128-pin QFP), confirmed flash endurance (100 write/erase cycles), real-time peripheral timing behavior, and two validated alternative parts for migration planning.

Technical Context

The DF2398F20V implements the H8S/2000 32-bit CPU core in a 16-bit external bus interface configuration, supporting both multiplexed and non-multiplexed address/data modes. It integrates a programmable pulse generator (PPG) with independent duty-cycle and period control, plus a data transfer controller (DTC) that offloads CPU during burst transfers between memory and peripherals.

Its flash memory uses F-ZTAT™ technology with on-chip programming logic, requiring specific voltage sequencing and timing (e.g., 128-byte block programming with z₁ = 10 µs pulse width for first six writes). The device supports multiple operating modes (e.g., single-chip, expanded bus) controlled via mode pins MD0–MD2 and reset vector selection via EAE bit in BCRL register.

Key Specifications

Pinout & Package

DF2398F20V is housed in a 128-pin plastic quad flat pack (FP-128B), with 4 sides × 32 pins, 0.5 mm pitch, and exposed thermal pad. Pin functions are mode-dependent; primary roles include 16-bit address (A₀–A₁₅), 16-bit data (D₀–D₁₅), control signals (AS#, WR#, RD#, CS#), and dedicated peripheral I/O (e.g., TXD0/RXD0, ADTRG, DA0/DA1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF2398F20V, HD64F2398F20 offers identical functionality with certified traceability, while R5F52308ADFP provides architectural modernization at the cost of board redesign and firmware porting effort - making DF2398F20V optimal for sustaining production of mature industrial control platforms.

Availability

DF2398F20V is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers, and embedded power supply monitors requiring stable component supply across long product lifecycles.

Supply support for DF2398F20V 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 infrastructure markets.

The H8S/2398F-ZTAT™ series was designed for high-reliability embedded control in factory automation and motor drive systems, emphasizing deterministic real-time performance, on-chip programmable memory, and robust peripheral integration.

FAQ

What is the maximum number of times DF2398F20V flash memory can be reprogrammed?

The DF2398F20V flash memory is rated for up to 100 write/erase cycles, as specified in Renesas documentation for the HD64F2398F and HD64F2398TE variants. This endurance applies to full-block erases and 128-byte programming operations under recommended voltage and temperature conditions. DF2398F20V does not support the 1,000-cycle variant (e.g., HD64F2398FT); exceeding 100 cycles risks data retention failure or verify errors.

Does DF2398F20V support 3.3 V operation?

No, DF2398F20V is a 5 V-only device with absolute maximum supply rating of 5.5 V and minimum operating voltage of 4.5 V. It is not 3.3 V tolerant; applying 3.3 V to VCC will prevent proper initialization and cause undefined behavior in the CPU core and peripherals. Level-shifting circuitry is required when interfacing with 3.3 V logic or sensors.

What package type is used for DF2398F20V?

DF2398F20V is packaged in the FP-128B format: a 128-pin plastic quad flat pack with 20 mm × 20 mm body size and 0.5 mm lead pitch. This package is distinct from the TQFP-120 used in TE-series variants and requires dedicated footprint design - no mechanical or solder-reflow compatibility with smaller packages.

Can DF2398F20V operate in expanded bus mode?

Yes, DF2398F20V supports expanded bus mode via MD0–MD2 pin configuration, enabling connection to external memory or peripherals using multiplexed or non-multiplexed 16-bit address/data buses. Bus timing is controlled by the bus controller with programmable wait states (0–15), AS# strobe width, and hold time settings - critical for interfacing with slow SRAM or FPGA-based co-processors.

Is DF2398F20V qualified for automotive applications?

No, DF2398F20V is classified as a "Standard" quality grade device per Renesas' product categorization, intended for industrial, office, and consumer equipment - not for automotive, medical life-support, or aerospace use. It lacks AEC-Q100 qualification, extended temperature screening, and automotive-specific failure-in-time (FIT) reporting required for vehicle ECUs.