Renesas M30878FJGP#U3

Overview

M30878FJGP#U3 from Renesas Electronics is a 144-pin LQFP 16-bit microcontroller in the M32C/87 Group, featuring the M32C/80 CPU core, 512 KB + 4 KB data flash ROM, 31 KB RAM, dual CAN 2.0B modules, and operation up to 32 MHz at 4.2–5.5 V. It targets industrial motor control, office automation, and communication equipment requiring integrated timing, analog conversion, and real-time I/O.

For engineers reviewing the M30878FJGP#U3 datasheet, M30878FJGP#U3 pinout, M30878FJGP#U3 application, or M30878FJGP#U3 equivalent, key selection criteria include its dual-CAN capability, 34-channel 10-bit ADC (144-pin package), on-chip dead-time timer for 3-phase inverter control, and support for wait/stop low-power modes with sub-1 μA current draw.

Technical Context

The M30878FJGP#U3 implements a 16-bit M32C/80 CPU core with 108 basic instructions, 16×16→32-bit multiplier, and 16×16+48→48-bit multiply-add capability. Its memory architecture supports 16-Mbyte external address space with configurable bus width (8/16-bit), separate/multiplexed bus formats, and up to 7 wait states.

Peripheral integration includes five 16-bit Timer A units (with PWM, encoder input, and 3-phase motor control functions), six 16-bit Timer B units, four-channel DMAC, DMACII with burst/chain transfer, CRC-CCITT engine, X/Y converter, and intelligent I/O supporting HDLC, IEBus (optional), IrDA, and GCI modes.

Key Specifications

Pinout & Package

Package: 144-pin plastic LQFP (PLQP0144KA-A), 20 mm × 20 mm × 1.4 mm body, 0.5 mm pitch, exposed pad not specified. Pinout validated per Renesas REJ03B0127-0151 Rev.1.51 Figure 1.3 and Tables 1.8–1.9.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP and MB9BF516RPMC, the M30878FJGP#U3 delivers deterministic real-time response for 3-phase motor control via dedicated hardware timers and dead-time insertion, retains legacy IEBus support for Japanese automotive subsystems, and provides higher ADC channel density (34 vs. 24) within its 16-bit architecture footprint.

Availability

M30878FJGP#U3 is available at Aetrix Electronics and suitable for industrial motor drives, office automation equipment, and automotive body control modules requiring stable component supply across extended product lifecycles.

Supply support for M30878FJGP#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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.

The M32C/87 Group, including M30878FJGP#U3, was designed for cost-sensitive, real-time embedded applications in office equipment, industrial automation, and automotive subsystems where 16-bit performance, integrated peripherals, and long-term supply stability are critical.

FAQ

What is the maximum operating frequency and required supply voltage for M30878FJGP#U3?

The M30878FJGP#U3 operates at a maximum frequency of 32 MHz when supplied with VCC1 = 4.2 V to 5.5 V. At lower voltages (3.0–5.5 V), the maximum supported frequency is 24 MHz. The device uses two supply domains: VCC1 powers the core and I/O, while VCC2 (3.0 V to VCC1) supplies analog and certain peripherals. These specifications are defined in Table 1.1 of the REJ03B0127-0151 datasheet.

Does M30878FJGP#U3 support dual CAN 2.0B interfaces, and how are they implemented?

Yes, the M30878FJGP#U3 implements two independent CAN 2.0B modules, each with 16 message slots. CAN0 uses pins P8_2 (CAN0OUT) and P8_3 (CAN0IN); CAN1 uses P9_5 (CAN1IN/CAN1WU) and P9_6 (CAN1OUT). Both channels support full CAN 2.0B functionality including identifier masking, error handling, and wake-up capability - confirmed in Table 1.2 and Note 5 of the datasheet.

How many analog-to-digital converter (ADC) channels does M30878FJGP#U3 provide, and what is their resolution?

The M30878FJGP#U3 features a 10-bit successive-approximation ADC with 34 input channels in single-chip mode - enabled by its 144-pin LQFP package. This includes dedicated analog pins (AN0_0–AN0_7, AN15_0–AN15_7, AN_0–AN_7) and shared port functions. The ADC incorporates a sample-and-hold circuit and supports simultaneous sampling triggers from timers or external events, as specified in Table 1.2.

What low-power modes are available on M30878FJGP#U3, and what is the typical current draw in each?

The M30878FJGP#U3 supports Wait mode (~45 μA at ~1 MHz internal oscillator) and Stop mode (0.8 μA at 3.3 V), both retaining RAM and register contents. Stop mode disables all clocks and CPU; Wait mode halts the CPU but keeps peripherals active. Power supply voltage detection (Vdet3/Vdet4) and cold/warm start logic allow safe recovery from brown-out conditions - detailed in Section 1.1.2 and Table 1.2 of the datasheet.

Is on-chip debug and flash reprogramming supported for M30878FJGP#U3 during development?

Yes, the M30878FJGP#U3 includes full on-chip debug capability and supports in-system flash reprogramming without requiring external programming hardware. This enables real-time debugging, breakpoint setting, and firmware updates via standard interfaces. Debug features are integrated into the silicon and documented in Section 1.1.2 and Table 1.2 under "Debug functions".