Renesas M30800FCFP#U3

Overview

M30800FCFP#U3 from Renesas Electronics is a 16-bit single-chip microcontroller belonging to the M16C/80 Group, featuring 256 KB on-chip flash memory, 16 KB RAM, and integrated peripherals including UARTs, timers (A/B), A/D converter, and programmable I/O ports. It operates at up to 20 MHz with supply voltage range of 2.7–5.5 V and targets embedded control in industrial equipment and consumer electronics.

For engineers reviewing the M30800FCFP#U3 datasheet, M30800FCFP#U3 pinout, M30800FCFP#U3 application, or M30800FCFP#U3 equivalent, key selection considerations include its 100-pin LQFP package, 10-bit 16-channel A/D converter, three UART interfaces with SIM compliance, and support for CPU rewrite mode and watchdog timer with window function.

Technical Context

The M30800FCFP#U3 implements the M16C core architecture with 16-bit data bus and 24-bit address bus, supporting both big-endian and little-endian operation modes via software configuration. It integrates dual clock systems - main clock (up to 20 MHz) and sub-clock (32.768 kHz) - enabling flexible power management including Stop and Wait modes.

Peripheral subsystems include four independent UART channels (UART0–UART4), two 16-bit timer groups (Timer A with 5 channels, Timer B with 6 channels), a 16-channel 10-bit successive-approximation A/D converter with scan mode, and a DMA controller supporting 4 channels with auto-reload capability.

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad, suitable for surface-mount reflow assembly and moderate-power embedded applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with M30800FCFP#U3, the R5F100PLGFB#30 offers superior energy efficiency but sacrifices motor control peripherals, while the MB9BF506RPMC-G-SNE2 delivers modern ARM performance and CAN connectivity at the expense of legacy M16C ecosystem compatibility and higher BOM cost.

Availability

M30800FCFP#U3 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart meter communication interfaces, home appliance motor controllers, and POS terminal peripheral hubs requiring stable component supply across multi-year production cycles.

Supply support for M30800FCFP#U3 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 industrial, automotive, and infrastructure markets.

The M16C/80 Series was designed for cost-sensitive, high-reliability embedded control applications where deterministic real-time response, on-chip nonvolatile memory, and mixed-signal integration are critical - particularly in white goods, factory automation, and utility metering.

FAQ

What is the maximum operating frequency of the M30800FCFP#U3?

The M30800FCFP#U3 supports a maximum CPU clock frequency of 20 MHz when using the main system clock. This is achieved with an external crystal or oscillator connected to XT1/XT2 pins, and the internal clock divider configured for 1:1 operation. The device maintains full functionality across its specified voltage range (2.7–5.5 V) at this speed, and timing margins are validated per Renesas' Hardware Manual Rev. 1.00.

Does the M30800FCFP#U3 support in-system programming (ISP)?

Yes, the M30800FCFP#U3 supports CPU rewrite mode, enabling in-system programming of its 256 KB on-chip flash memory via UART or other serial interface without removing the device from the board. This feature is documented in Section 30 "CPU Rewrite Mode" of the M16C/80 Hardware Manual and requires proper entry sequence and security key handling to prevent accidental erasure.

How many UART interfaces does the M30800FCFP#U3 include, and which support SIM interface compliance?

The M30800FCFP#U3 integrates four UART channels (UART0 through UART3). UART2, UART3, and UART4 are explicitly designed to comply with the SIM interface standard (ISO/IEC 7816-3), as confirmed in the "Clock-asynchronous serial I/O mode (compliant with the SIM interface)" section of the Hardware Manual. UART0 and UART1 operate in standard UART mode only.

What is the resolution and channel count of the A/D converter in the M30800FCFP#U3?

The M30800FCFP#U3 features a 10-bit successive-approximation A/D converter with 16 input channels (AD0–AD15), as detailed in Section 21 of the Hardware Manual. Conversion time is ≤1.2 μs per channel in high-speed mode, and the module supports automatic scan sequencing triggered by timer or software events - essential for real-time sensor acquisition in industrial control loops.

Is the M30800FCFP#U3 pin-compatible with other members of the M16C/80 family?

The M30800FCFP#U3 uses a 100-pin LQFP package shared with several M16C/80 variants (e.g., M30802FJTPGP#U3), but pin assignments differ across memory size and peripheral configurations. While core signal groups (power, reset, clocks, UART0) align, analog input mapping, timer outputs, and I/O alternate functions vary. Therefore, PCB layout is not interchangeable without verification against the specific device's pin description table in the Hardware Manual.