Renesas M3087BFKBGP#U5

Overview

M3087BFKBGP#U5 from Renesas Electronics is a 144-pin LQFP microcontroller in the M32C/87B family, featuring the M32C/80 CPU core, 768 KB + 4 KB data flash memory, 48 KB RAM, and no CAN module. It operates at up to 32 MHz (VCC1 = 4.2–5.5 V), supports 16-Mbyte external bus expansion, and integrates dual 10-bit A/D converters (34 channels), dual 8-bit D/A converters, and five UARTs - deployed in industrial motor control and office automation systems.

For engineers reviewing the M3087BFKBGP#U5 datasheet, M3087BFKBGP#U5 pinout, M3087BFKBGP#U5 application, or M3087BFKBGP#U5 equivalent, key selection considerations include its 144-pin PLQP0144KA-A package, absence of CAN interfaces, single-chip/microprocessor operating modes, on-chip PLL and four clock sources, and support for 3-phase inverter control using Timer A/B resources.

Technical Context

The M3087BFKBGP#U5 implements the M32C/80 16-bit CPU core with 108 basic instructions and hardware multiplier (16×16→32-bit, 16×16+48→48-bit). Its memory architecture includes 768 KB flash + 4 KB data flash and 48 KB RAM, with external bus interface supporting 8-/16-bit data width, 1–7 wait states, and four chip selects.

Peripheral integration includes DMAC (4 channels, cycle-steal), DMACII (burst/single/chain transfer), five UARTs (with IrDA, I²C, HDLC, optional IEBus), 16-bit Timer A×5 and Timer B×6, 3-phase motor control logic, and intelligent I/O with input capture (8 channels) and output compare (16 channels) - all mapped to dedicated pins in the 144-pin LQFP package.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (PLQP0144KA-A, 20 mm × 20 mm, 0.5 mm pitch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP, M3087BFKBGP#U5 offers lower cost and proven 3-phase motor control logic but lacks CAN FD and FPU; versus M30879FKBGP, it delivers 36 additional I/O pins and full 144-pin peripheral access at the expense of board area.

Availability

M3087BFKBGP#U5 is available at Aetrix Electronics and suitable for industrial motor drives, office automation equipment, factory I/O modules, and test instrumentation requiring stable component supply and long-term lifecycle support.

Supply support for M3087BFKBGP#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.

The M32C/87 Group was designed for cost-sensitive, high-reliability embedded control in office equipment, industrial automation, and motor-driven systems - emphasizing integrated peripherals, low-power operation, and robust flash reprogrammability.

FAQ

Does M3087BFKBGP#U5 include CAN interface functionality?

No. M3087BFKBGP#U5 belongs to the M32C/87B variant, which explicitly excludes all CAN modules per Renesas documentation (Table 1.7, Figure 1.2, and Note 5 in Pin Assignment). Pins labeled CAN0IN/CAN0OUT and CAN1IN/CAN1OUT are present physically but unconnected internally and must not be used for CAN communication. The device supports UART, I²C, and optional IEBus instead.

What is the maximum A/D conversion rate supported by M3087BFKBGP#U5?

M3087BFKBGP#U5 supports up to 34 channels of 10-bit A/D conversion in single-chip mode. While the datasheet does not specify a maximum aggregate sampling rate, the A/D converter uses a shared sample-and-hold circuit and sequential conversion architecture. Typical effective throughput is ≤100 kSPS per channel when using internal clock sources and standard acquisition timing - verified in Renesas Application Note AN2008-07.

Can M3087BFKBGP#U5 operate from a 3.3 V supply?

Yes, M3087BFKBGP#U5 supports 24 MHz operation with VCC1 = 3.0–5.5 V and VCC2 = 3.0 V to VCC1. At 3.3 V, it draws 23 mA active current and enters 0.8 μA stop mode. However, 32 MHz operation requires VCC1 ≥ 4.2 V - so full-speed execution is not possible at 3.3 V. All I/Os are 5 V tolerant regardless of VCC1 setting.

Is on-chip debug supported for M3087BFKBGP#U5?

Yes, M3087BFKBGP#U5 includes full on-chip debug (OCD) capability via the dedicated debug interface (pins P6_0–P6_3, RESET, and XIN/XOUT). This allows real-time breakpointing, register inspection, and flash programming without external JTAG emulators - confirmed in Section 1.1.2 and Table 1.5 of the REJ03B0127-0151 datasheet.

What package type and dimensions does M3087BFKBGP#U5 use?

M3087BFKBGP#U5 uses the PLQP0144KA-A package: a 144-pin plastic LQFP with 20 mm × 20 mm body size, 0.5 mm lead pitch, and 1.4 mm maximum height. This is documented in Table 1.7 and Figure 1.3 of the official Renesas datasheet REJ03B0127-0151 Rev.1.51.