Renesas M30845FJGP#U3

Overview

M30845FJGP#U3 from Renesas Electronics is a 16/32-bit single-chip microcontroller based on the M32C/80 CPU core, housed in a 100-pin LQFP (PLQP0100KB-A) package. It integrates 512 KB Flash memory, 10-bit A/D converter with 26 channels, dual 8-bit D/A converters, CAN 2.0B module, and 4-channel DMAC - enabling real-time control in automotive body electronics and industrial motor drives.

For engineers reviewing the M30845FJGP#U3 datasheet, M30845FJGP#U3 pinout, M30845FJGP#U3 application, or M30845FJGP#U3 equivalent, key selection criteria include its 32 MHz max BCLK operation at 4.2–5.5 V, –20 to +85°C ambient range, and support for IEBus, I²C, UART, and HDLC serial protocols in compact 100-pin footprint.

Technical Context

The M30845FJGP#U3 implements the M32C/80 series CPU core with 108 basic instructions and executes shortest instructions in 31.3 ns at 32 MHz. Its memory architecture supports 16 Mbyte address space, with on-chip Flash (512 KB) and RAM configured for deterministic real-time execution.

Peripheral integration includes five UART/Clock-synchronous serial I/O channels, Timer A (5×16-bit) and Timer B (6×16-bit), intelligent I/O with time measurement/waveform generation (8 channels), and a dedicated three-phase motor control circuit - all synchronized via four independent clock generation circuits (main/sub oscillators, on-chip oscillator, PLL).

Key Specifications

Pinout & Package

Package: PLQP0100KB-A (100-pin LQFP, 14 × 14 mm, 0.5 mm pitch). Pinout validated per Renesas document REJ03B0047-0121 (Rev.1.21, Jul. 2005), Figure 1.4 and Table 1.4.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP#30 and MB9BF526KPMC-G-SNE2, the M30845FJGP#U3 delivers optimal balance of CAN integration, Flash size, and 100-pin compactness for cost-sensitive automotive body modules and industrial motion controllers - without over-specifying clock speed or memory.

Availability

M30845FJGP#U3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, office equipment motion control, and communications equipment management requiring stable component supply across extended product lifecycles.

Supply support for M30845FJGP#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 merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.

The M32C/84 Group was designed for cost-effective, real-time embedded control in automotive, industrial, and office automation systems - emphasizing integrated peripherals, Flash programmability, and robust operation across extended temperature ranges.

FAQ

What is the maximum operating frequency of the M30845FJGP#U3?

The M30845FJGP#U3 supports a maximum BCLK frequency of 32 MHz at VCC1 = 4.2–5.5 V, achieving a shortest instruction execution time of 31.3 ns. At lower supply voltages (e.g., VCC1 = 3.0–5.5 V), the maximum BCLK is reduced to 24 MHz with 41.7 ns minimum instruction cycle. These values are specified in Renesas document REJ03B0047-0121, Table 1.2.

Does the M30845FJGP#U3 support CAN FD or only classical CAN 2.0B?

The M30845FJGP#U3 implements only the CAN 2.0B specification, supporting standard and extended frame formats up to 1 Mbit/s. It does not support CAN FD features such as flexible data-rate or increased payload length. This limitation is explicitly stated in the "CAN Module" section of the M32C/84 Group datasheet (REJ03B0047-0121, p.2).

How many analog input channels does the M30845FJGP#U3 provide?

The M30845FJGP#U3 includes a single 10-bit A/D converter with 26 analog input channels, as confirmed for the 100-pin package variant in Table 1.2 of REJ03B0047-0121. This count excludes dedicated analog pins like AVcc, AVss, and VREF, and covers all P0x, P10x, and KIx pins designated for analog input in the pin assignment diagram (Figure 1.4).

What is the Flash endurance rating for the M30845FJGP#U3?

The M30845FJGP#U3 Flash memory is rated for 100 program/erase cycles across the entire memory space, as specified in Table 1.1 and Table 1.2 of the official Renesas datasheet REJ03B0047-0121. This applies to both 144-pin and 100-pin package variants and assumes operation within the specified voltage and temperature ranges.

Is the M30845FJGP#U3 pin-compatible with other M32C/84 Group members?

The M30845FJGP#U3 shares the same 100-pin LQFP package (PLQP0100KB-A) and pin assignments with other M32C/84 Group 100-pin variants (e.g., M30843FJGP#U3, M30845FJGP#U3), as defined in Figure 1.4 and Table 1.4 of REJ03B0047-0121. However, functional differences (e.g., ROM size, peripheral enablement) require verification of register-level compatibility before direct substitution.