Renesas M30845FWGP#U3

Overview

M30845FWGP#U3 from Renesas Electronics is a 100-pin LQFP Flash-based 16/32-bit microcontroller in the M32C/84 Group, featuring a M32C/80-series CPU core, 320 KB on-chip Flash ROM, 16 MB address space, and integrated CAN 2.0B module - deployed in industrial motor control, office automation equipment, and automotive body electronics.

For engineers reviewing the M30845FWGP#U3 datasheet, M30845FWGP#U3 pinout, M30845FWGP#U3 application, or M30845FWGP#U3 equivalent, key selection criteria include its 100-pin PLQP0100KB-A package, 32 MHz max BCLK operation at 4.2–5.5 V, 26-channel 10-bit A/D converter, dual 8-bit D/A outputs, and support for IEBus, I²C, and five serial I/O channels with HDLC capability.

Technical Context

The M30845FWGP#U3 implements a single-chip architecture with memory-mapped peripherals including four clock generation circuits (main/sub oscillators, on-chip oscillator, PLL), CRC-CCITT calculation hardware, and a 16×16-bit X/Y converter. Its DMAC II supports immediate, calculation, and chain transfers triggered by all peripheral interrupt sources.

It integrates intelligent I/O with eight 16-bit channels supporting time measurement or waveform generation, multifunction timers (Timer A: 5×16-bit, Timer B: 6×16-bit), three-phase motor control circuitry, and a watchdog timer with 15-bit counter and prescaler - all operating under single-chip mode without external bus expansion.

Key Specifications

Pinout & Package

Package: 100-pin plastic molded LQFP (PLQP0100KB-A), 14 mm × 14 mm, 0.5 mm pitch, exposed thermal pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP#30 and M30835FJGP#U3, the M30845FWGP#U3 uniquely balances legacy interface support (IEBus), ample Flash for complex control logic, and proven qualification for industrial temperature ranges - making it optimal for sustaining production of established office and motor control platforms.

Availability

M30845FWGP#U3 is available at Aetrix Electronics and suitable for industrial motor control, office automation equipment, and automotive body electronics requiring stable component supply throughout extended product lifecycles.

Supply support for M30845FWGP#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 solutions.

The M32C/84 Group was designed for cost-effective, high-integration embedded control in resource-constrained industrial and automotive applications - emphasizing real-time responsiveness, mixed-signal capability, and long-term manufacturability.

FAQ

What is the maximum operating frequency of the M30845FWGP#U3?

The M30845FWGP#U3 supports a maximum BCLK frequency of 32 MHz at VCC1 = 4.2–5.5 V, yielding a shortest instruction execution time of 31.3 ns. At 24 MHz BCLK and VCC1 = 3.0–5.5 V, execution time extends to 41.7 ns. This timing is confirmed in Table 1.1 and Table 1.2 of the official Renesas documentation for the M32C/84 Group. The M30845FWGP#U3 achieves this performance using its M32C/80-series CPU core with silicon gate CMOS technology.

Does the M30845FWGP#U3 include an integrated CAN controller?

Yes, the M30845FWGP#U3 integrates one CAN module compliant with the CAN 2.0B specification, supporting both standard and extended message formats and bit rates up to 1 Mbps. Pins P82 (CAN0OUT) and P83 (CAN0IN) provide direct connection to an external CAN transceiver. This functionality is explicitly documented in Tables 1.1 and 1.2 and Figure 1.1 of the M32C/84 Group datasheet. The M30845FWGP#U3 uses this module for robust communication in automotive and industrial networks.

What is the Flash memory capacity and endurance rating of the M30845FWGP#U3?

The M30845FWGP#U3 contains 320 KB of on-chip Flash memory (indicated by 'W' in the part number), rated for 100 program/erase cycles across the entire memory space. Programming requires either 3.3 V ± 0.3 V or 5.0 V ± 0.5 V supply voltage. This specification is defined in Table 1.1 and Section 1.4 of the Renesas M32C/84 Group documentation. The M30845FWGP#U3 leverages this Flash for storing firmware and calibration data in field-deployed systems.

How many analog-to-digital converter channels does the M30845FWGP#U3 support?

The M30845FWGP#U3 features a single 10-bit A/D converter circuit with 26 input channels, as specified for the 100-pin package variant in Table 1.2. These channels include dedicated analog pins (AN00–AN07, AN20–AN27, AN150–AN157) and multiplexed port pins (e.g., P94–P97, P100–P107). This configuration is confirmed in the "A/D Converter" row of Table 1.2 and Figure 1.4. The M30845FWGP#U3 uses these channels for sensor signal acquisition in motor control and environmental monitoring applications.

What package type and pin count does the M30845FWGP#U3 use?

The M30845FWGP#U3 uses a 100-pin plastic LQFP package designated PLQP0100KB-A (100P6Q-A), measuring 14 mm × 14 mm with 0.5 mm lead pitch. This is explicitly stated in Section 1.4 ("Product Information") and Figure 1.4 ("Pin Assignment for 100-Pin Package") of the Renesas M32C/84 Group datasheet. The M30845FWGP#U3's pin layout supports full peripheral access while maintaining compatibility with standard SMT assembly processes.