Renesas M30878FJAGP#U5

Overview

M30878FJAGP#U5 from Renesas Electronics is a 144-pin LQFP flash-based 16-bit MCU in the M32C/87A family, embedding the M32C/80 CPU core with 512 KB + 4 KB data flash, 31 KB RAM, dual CAN 2.0B channels (1 active), and 34-channel 10-bit ADC - deployed in industrial motor control and office automation systems requiring real-time I/O and deterministic communication.

For engineers reviewing the M30878FJAGP#U5 datasheet, M30878FJAGP#U5 pinout, M30878FJAGP#U5 application, or M30878FJAGP#U5 equivalent, key selection considerations include its 144-pin PLQP0144KA-A package, CAN 2.0B compliance with 16-slot buffer per channel, 32 MHz operation at 4.2–5.5 V, integrated 3-phase inverter timing logic, and on-chip debug support for flash reprogramming.

Technical Context

The M30878FJAGP#U5 implements the M32C/80 CPU core with 108 basic instructions and hardware multiplier (16×16→32-bit), supporting single-chip, memory expansion, and microprocessor operating modes. Its external bus interface provides 16-Mbyte address space with configurable wait states, 4 chip selects, and switchable 8-/16-bit data width.

It integrates dual CAN 2.0B modules (M32C/87A variant: one active channel), five UARTs with IrDA/GCI/IEBus options, DMAC with 43 trigger sources, and timer subsystems including Timer A (5×16-bit) with PWM/encoder input and Timer B (6×16-bit) with pulse width/period measurement - all synchronized to a PLL-controlled clock system with main/sub/oscillator/PLL sources.

Key Specifications

Pinout & Package

Package: 144-pin plastic LQFP (PLQP0144KA-A), 20 mm × 20 mm body, 0.5 mm lead pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP and MB9BF526K, the M30878FJAGP#U5 delivers deterministic 3-phase motor timing in silicon at 32 MHz with minimal external components, whereas alternatives require external gate drivers or software-based dead-time management - increasing code size and interrupt latency.

Availability

M30878FJAGP#U5 is available at Aetrix Electronics and suitable for industrial motor drives, office automation equipment, and factory automation nodes requiring stable component supply across extended product lifecycles.

Supply support for M30878FJAGP#U5 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 solutions.

The M32C/87A series was designed for cost-sensitive, real-time industrial control applications demanding integrated CAN, high-resolution ADC, and deterministic motor timing - targeting office equipment, factory I/O, and HVAC systems.

FAQ

What is the exact package type and footprint for M30878FJAGP#U5?

The M30878FJAGP#U5 uses a 144-pin LQFP package designated PLQP0144KA-A: 20 mm × 20 mm body, 0.5 mm lead pitch, standard JEDEC MO-220 footprint. It is not RoHS-compliant by default; consult Renesas for halogen-free variants. Pin 1 location is marked by a dot or notch per Figure 1.3 in the official datasheet REJ03B0127-0151.

Does M30878FJAGP#U5 support both CAN channels, or only one?

M30878FJAGP#U5 belongs to the M32C/87A subgroup and supports only CAN0 (16-slot × 1 channel); CAN1 pins (e.g., P9_5/P9_6) are disabled and repurposed as general I/O or UART/I²C functions. This is confirmed in Table 1.6 and Note 5 of the datasheet - no firmware or configuration enables CAN1 on this variant.

What is the maximum ADC sampling rate and channel configuration for M30878FJAGP#U5?

In single-chip mode, the M30878FJAGP#U5 supports 10-bit ADC conversion across 34 channels with sample-and-hold. Maximum aggregate sampling rate is 100 kSPS (10 μs per conversion), achievable using burst mode with DMAC transfer to avoid CPU overhead - verified in Section 1.1.2 and Table 1.1 of REJ03B0127-0151.

Can M30878FJAGP#U5 operate at 3.3 V supply, and what are the frequency limits?

Yes - M30878FJAGP#U5 supports 24 MHz operation at VCC1 = 3.0–5.5 V, enabling reliable 3.3 V system design. At 3.3 V, maximum clock is 24 MHz (minimum instruction time = 41.7 ns); 32 MHz requires VCC1 ≥ 4.2 V. Both VCC1 and VCC2 must be within 3.0 V to VCC1, per Table 1.1 and Table 1.4.

Is on-chip debug supported for M30878FJAGP#U5, and what interfaces are available?

Yes - M30878FJAGP#U5 includes full on-chip debug capability per Section 1.1.2, supporting real-time trace, breakpoint setting, and flash reprogramming. Debug access uses the dedicated debug port (not SWD/JTAG) and is enabled via the on-chip debug ROM; UART-based programming is also supported for field updates without dedicated debug hardware.