Renesas D12350F20IV

Overview

D12350F20IV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2350 Group, featuring a 32-bit H8S/2000 CPU core, 16 MB linear address space, on-chip RAM, and integrated peripherals including TPU, PPG, WDT, SCI, A/D and D/A converters, DMA controller (DMAC), and data transfer controller (DTC). It targets compact, high-throughput embedded control applications such as industrial automation interfaces and smart card readers.

For engineers reviewing the D12350F20IV datasheet, D12350F20IV pinout, D12350F20IV application, or D12350F20IV equivalent, key selection criteria include its 20 MHz max operating frequency, TFP-120 package, 16-bit timer pulse unit with input capture/compare, asynchronous serial interface with smart card support, and 10-bit A/D converter with 8-channel multiplexing.

Technical Context

The H8S/2350 Group implements a 32-bit internal CPU architecture executing basic instructions in one state, with sixteen 16-bit general-purpose registers and an optimized C-friendly instruction set. Its memory bus supports configurable data width and wait states per address area for flexible external memory interfacing.

On-chip peripherals include a programmable pulse generator (PPG) for waveform synthesis, dual serial communication interfaces (SCI0/SCI1) supporting asynchronous and smart card protocols, and a 10-bit successive-approximation A/D converter with sample-and-hold and trigger sources including external pins and timers.

Key Specifications

Pinout & Package

Package: TFP-120 (120-pin thin fine-pitch QFP, 0.4 mm pitch, 14 mm × 14 mm body, standard JEDEC MO-220 footprint).

Key Features

Applications

Equivalent & Alternatives

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

Compared with D12350F20IV, HD64F2350F20IV offers identical peripheral functionality but fixed firmware content, while R5F2350F20IP provides updated low-power architecture and tooling at the cost of full hardware/software migration effort.

Availability

D12350F20IV is available at Aetrix Electronics and suitable for industrial automation interfaces, smart card reader controllers, medical diagnostic instrument front-ends, test & measurement data loggers, and embedded control systems requiring stable component supply across long product lifecycles.

Supply support for D12350F20IV 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/2350 Group was designed as a high-performance 16-bit MCU platform for real-time embedded control in resource-constrained systems requiring rich peripheral integration and deterministic timing behavior.

FAQ

What is the maximum operating frequency of the D12350F20IV?

The D12350F20IV operates at a maximum frequency of 20 MHz when driven by an external crystal or clock source connected to the EXTAL pin. This frequency defines the upper limit for instruction execution speed, peripheral timing resolution, and real-time response capability. The internal CPU core maintains consistent timing behavior up to this rated speed under specified voltage and temperature conditions.

Does the D12350F20IV support ISO 7816 smart card communication?

Yes, the D12350F20IV supports ISO/IEC 7816-3 smart card protocols through its dedicated SCI modules. It provides hardware-level timing control for ETU (elementary time unit), guard time insertion, error signaling via the ERS bit in SSR, and automatic clock rate adaptation - all without CPU intervention during active card transactions.

What type of A/D converter is integrated in the D12350F20IV?

The D12350F20IV integrates a 10-bit successive-approximation (SAR) A/D converter with eight analog input channels (AN0–AN4 plus additional multiplexed inputs). It supports external triggering via the ADTRG pin and features an internal sample-and-hold circuit, enabling accurate acquisition of fast-changing analog signals in real-time control loops.

What package does the D12350F20IV use, and what are its key mechanical dimensions?

The D12350F20IV uses the TFP-120 package: a 120-pin thin fine-pitch plastic QFP with 0.4 mm lead pitch and a 14 mm × 14 mm body size. It conforms to JEDEC MO-220 standards and requires standard QFP reflow profiles. Thermal pad exposure and solder mask clearance follow Renesas' recommended layout guidelines in the hardware manual.

How does the D12350F20IV handle reset and initialization?

The D12350F20IV requires an active-low signal on the RESET pin to initialize internal registers and CPU state. Upon release, the device begins execution from the reset vector address after internal stabilization. All unused input pins must be externally pulled high or low to prevent noise-induced current flow, and NC pins must remain unconnected to ensure guaranteed operation per Renesas specifications.