Renesas DF2398TE20V

Overview

DF2398TE20V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2398F-ZTAT™ family, featuring a 32-bit H8S/2000 CPU core, 512 KB on-chip flash memory (F-ZTAT), 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 is housed in a 120-pin TQFP package. It targets embedded control systems requiring reprogrammable nonvolatile storage and real-time I/O handling.

For engineers reviewing the DF2398TE20V datasheet, DF2398TE20V pinout, DF2398TE20V application, or DF2398TE20V equivalent, this page delivers verified technical identity, validated pin functions, confirmed flash endurance (100 write/erase cycles), exact package mapping (TFP-120), and two field-validated alternative parts for industrial control and instrumentation design.

Technical Context

The DF2398TE20V implements the H8S/2000 CPU core with 24-bit addressing, supporting advanced mode operation and exception vector table relocation. Its flash memory uses F-ZTAT technology with program/verify flow controlled via FLMCR1 register bits (P, PSU, PV, SWE) and supports 128-byte block programming with write pulse timing dependent on cycle count (z1/z2 µs).

Peripheral integration includes a Data Transfer Controller (DTC) for autonomous memory-to-peripheral transfers, a Programmable Pulse Generator (PPG) for waveform synthesis, and dual serial communication interfaces (SCI) with clocked synchronous and asynchronous modes - all accessible via dedicated I/O ports with configurable pull-up control registers (e.g., PAPCR, PBPCR) active only in on-chip ROM versions.

Key Specifications

Pinout & Package

DF2398TE20V is supplied in a 120-pin thin quad flat pack (TQFP) with 0.4 mm lead pitch, designated TFP-120 per Renesas package documentation. Pin functions are mode-dependent (e.g., multiplexed for I/O, bus, or peripheral signals) and include dedicated reset (RES), clock input (CLK), and power/ground pins distributed for noise suppression.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF2398TE20V, HD64F2398F20V trades PPG and compact TQFP for higher pin count and different package thermal profile, while HD64F2357TE20V reduces memory and analog capability to lower cost - neither offers identical feature parity, making DF2398TE20V the sole choice for full-featured 5 V H8S control with integrated DAC and PPG.

Availability

DF2398TE20V is available at Aetrix Electronics and suitable for industrial automation, test equipment, and building control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant 5 V microcontroller solutions.

Supply support for DF2398TE20V 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 infrastructure markets.

The H8S/2398F-ZTAT™ product line delivers high-integration 16-bit MCUs with reprogrammable flash and rich peripheral sets for cost-sensitive, real-time embedded control applications where 5 V operation and field-upgradable firmware are essential.

FAQ

What is the maximum number of times DF2398TE20V flash memory can be reprogrammed?

The DF2398TE20V flash memory is rated for up to 100 write/erase cycles, as confirmed in Renesas Hardware Manual Rev. 6.00 (Table 22-21). This endurance applies specifically to the DF2398TE and DF2398F variants - not the "TET" or "FT" suffix versions, which support 1,000 cycles. Designers must plan firmware update strategies accordingly to avoid premature flash wear-out in deployed DF2398TE20V units.

Does DF2398TE20V support external bus expansion?

Yes, DF2398TE20V supports external bus expansion via its 16-bit data bus (D0–D15) and 24-bit address bus (A0–A23), with dedicated bus control signals (AS, DS, WR, RD, CS). The hardware manual confirms DRAM access timing with DDS control and RAS/CAS support, enabling connection to external memory or peripheral ASICs - critical for applications needing more than 32 KB on-chip RAM.

What is the function of the PAPCR register in DF2398TE20V?

The Port A MOS Pull-Up Control Register (PAPCR) in DF2398TE20V enables software-controlled activation of weak pull-up resistors on PA0–PA7 pins. As documented in Section 9.8.2 of the Hardware Manual, this register is available only in on-chip ROM versions and allows elimination of external pull-up components on I²C, SCI, or GPIO lines - directly improving board density and reducing BOM cost for DF2398TE20V-based designs.

Is DF2398TE20V pin-compatible with other H8S/2398 variants?

No - DF2398TE20V (120-pin TQFP, TFP-120) is not pin-compatible with HD64F2398F20V (128-pin QFP, FP-128B), despite shared functionality. Pin counts, pitch, and physical dimensions differ, and signal assignments vary across packages. Migration requires PCB redesign. Renesas explicitly lists them under separate package codes in Table G-2, confirming no mechanical or electrical interchangeability for DF2398TE20V and FP-128B variants.

What peripheral modules are included in DF2398TE20V?

DF2398TE20V integrates a bus controller, data transfer controller (DTC), programmable pulse generator (PPG), three timer types (8-bit, 16-bit, and 32-bit), serial communication interface (SCI), 10-bit A/D converter (8 channels), 8-bit D/A converter (1 channel), and general-purpose I/O ports A–E. All are documented in Chapter 1 of the H8S/2357 Group Hardware Manual and confirmed for the H8S/2398F-ZTAT™ family, including DF2398TE20V.