Renesas D12392F20IV

Overview

D12392F20IV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2398 Group, featuring an H8S/2000 CPU core, 256 KB on-chip flash memory (F-ZTAT), 16 KB RAM, and integrated peripherals including A/D and D/A converters, SCI, PPG, timers, and DTC. It operates at 20 MHz max, supports 5 V supply, and targets embedded control in industrial automation and motor control systems.

For engineers reviewing the D12392F20IV datasheet, D12392F20IV pinout, D12392F20IV application, or D12392F20IV equivalent, key selection criteria include its 128-pin QFP package, flash endurance of 1,000 reprogramming cycles, 5 V operation, and compatibility with H8S/2398F-ZTAT™ architecture for firmware-upgradable control designs.

Technical Context

The D12392F20IV implements the H8S/2000 32-bit CPU core with 16-bit external bus interface, supporting both multiplexed and non-multiplexed addressing modes. It integrates a data transfer controller (DTC) for autonomous memory-to-peripheral transfers and a programmable pulse generator (PPG) for precise waveform generation.

Its flash memory uses F-ZTAT™ technology enabling in-system reprogramming without external UV erasure; the device supports multiple operating modes including single-chip, expanded bus, and ROM-based boot modes, with configurable reset and interrupt vectors mapped to on-chip memory space.

Key Specifications

Pinout & Package

Package: 128-pin plastic quad flat pack (QFP), FP-128B, 20 mm × 20 mm body, 0.4 mm lead pitch, JEDEC MS-026 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with D12392F20IV, HD64F2398F20 offers identical pinout and speed but reduced flash endurance, while HD64F2398TE20 eliminates reprogramming entirely - making D12392F20IV the sole choice for applications requiring field-upgradable firmware with moderate update frequency.

Availability

D12392F20IV is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLC modules, and embedded power supply monitoring requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.

Supply support for D12392F20IV 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 IoT applications.

The H8S/2398 Group, including D12392F20IV, was designed for high-reliability embedded control in industrial environments-emphasizing flash flexibility, analog integration, and deterministic real-time performance.

FAQ

What is the maximum operating frequency of the D12392F20IV?

The D12392F20IV operates at a maximum clock frequency of 20 MHz. This rating is validated under specified 4.5 V to 5.5 V supply conditions and ambient temperature range of –20 °C to +75 °C. The device achieves this speed using its on-chip PLL driven by an external crystal or clock source connected to the EXTAL pin, and all timing parameters in the datasheet-including bus access, A/D conversion, and PPG output-are derived from this 20 MHz base.

Does the D12392F20IV support in-system programming of its flash memory?

Yes, the D12392F20IV supports in-system programming via its F-ZTAT™ flash memory. It allows full reprogramming without removing the device from the target board, using standard SCI or dedicated programming pins. The D12392F20IV is rated for up to 1,000 program/erase cycles, and its flash controller includes built-in verify logic and write-pulse timing control as documented in the Hardware Manual Rev. 6.00.

What package type and pin count does the D12392F20IV use?

The D12392F20IV uses a 128-pin plastic quad flat pack (QFP) package, designated FP-128B per Renesas documentation. Its mechanical dimensions are 20 mm × 20 mm with 0.4 mm lead pitch, and it features 80 usable I/O pins alongside dedicated power, ground, clock, and reset terminals. This package is pin-compatible with other H8S/2398F-ZTAT™ variants such as HD64F2398F20 and HD64F2398FT.

How much on-chip RAM and flash memory does the D12392F20IV include?

The D12392F20IV integrates 16 KB of on-chip RAM and 256 KB of on-chip flash memory. The RAM is SRAM used for stack, variables, and data buffers; the flash is F-ZTAT™ technology supporting in-system reprogramming. Both memory blocks are directly mapped into the H8S/2000 linear address space and accessible without wait states at 20 MHz when configured per the bus controller settings.

Which analog peripherals are integrated into the D12392F20IV?

The D12392F20IV integrates an 8-channel, 10-bit successive-approximation A/D converter and two 8-bit D/A converters. The A/D module supports software, timer, and external trigger sources with configurable sample-and-hold timing; the D/A outputs are buffered and support simultaneous or independent updates. These peripherals are electrically characterized across the full 4.5–5.5 V supply range and –20 °C to +75 °C temperature range.