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Renesas M30878MJB-XXXGP#U0
- Part No.:
- M30878MJB-XXXGP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
M30878MJB-XXXGP#U0.pdf
- Description:
- IC MCU 16/32BIT 512KB 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,379
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Product details
Overview
M30878MJB-XXXGP#U0 from Renesas Electronics is a 144-pin LQFP mask ROM microcontroller in the M32C/87B family, featuring an M32C/80 CPU core, 512 KB ROM, 31 KB RAM, dual CAN 2.0B channels (disabled in M32C/87B variant), and 34-channel 10-bit ADC - deployed in industrial motor control and office automation systems.
For engineers reviewing the M30878MJB-XXXGP#U0 datasheet, M30878MJB-XXXGP#U0 pinout, M30878MJB-XXXGP#U0 application, or M30878MJB-XXXGP#U0 equivalent, key selection criteria include its 32 MHz operation at 4.2–5.5 V, 16-Mbyte external bus support, on-chip PLL, and integrated 3-phase motor control timers with dead-time generation.
Technical Context
The M30878MJB-XXXGP#U0 implements the M32C/80 16-bit CPU core with 108 basic instructions and supports single-chip, memory expansion, and microprocessor operating modes. It integrates a 4-circuit clock system (main clock, sub clock, on-chip oscillator, PLL) with selectable frequency division ratios (1–16) and low-power wait/stop modes.
Its peripheral set includes five 16-bit Timer A units (PWM, encoder input, one-shot), six 16-bit Timer B units (pulse width/period measurement), and dedicated 3-phase inverter control logic using Timer A1/A2/A4 and Timer B2 - all coordinated by an on-chip dead-time timer for gate drive safety.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M32C/80 16-bit RISC core with 16×16→32-bit multiplier and 16×16+48→48-bit multiply-add instruction |
| Max Operating Frequency | 32 MHz at VCC1 = 4.2–5.5 V; minimum instruction time = 31.3 ns |
| Memory | 512 KB mask ROM + 31 KB RAM; no data flash (M32C/87B variant) |
| Analog Interface | 10-bit ADC with 34 input channels (single-chip mode), sample-and-hold included |
| Digital I/O | 121 CMOS I/O ports with selectable pull-up resistors; 1 input-only port; 2 N-channel open-drain outputs |
| Serial Interfaces | 7 UART channels (UART0–UART6), I²C, IrDA, HDLC, optional IEBus; CAN module present but disabled per M32C/87B specification |
| Power Management | Wait mode current ≈45 μA @ 1 MHz / 3.3 V; stop mode current = 0.8 μA @ 3.3 V |
Pinout & Package
Package: 144-pin LQFP (PLQP0144KA-A, 20 × 20 mm, 0.5 mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P8_5 (Pin 24) | NMI input | Non-maskable interrupt trigger for critical fault handling or watchdog recovery |
| P9_6 (Pin 1) | CAN1OUT / TXD4 / SDA4 | Multi-function pin: CAN transmit output (inactive in M32C/87B), UART4 TX, or I²C data line |
| P9_5 (Pin 2) | CAN1IN / CLK4 / ANEX0 | Multi-function pin: CAN receive input (inactive), UART4 clock, or analog excitation source |
| P14_0 to P14_3 (Pins 14–11) | INPC1_n / OUTC1_n | Intelligent I/O capture/compare channels for encoder position feedback or PWM waveform generation |
| P5_0 to P5_3 (Pins 65–62) | WRL / WR / RD / CLKOUT | External bus control: write strobe, read strobe, and system clock output for timing synchronization |
Key Features
| Feature | Design Value |
|---|---|
| 3-Phase Motor Control Logic | Dedicated timer coordination (Timer A1/A2/A4 + Timer B2) with on-chip dead-time insertion prevents shoot-through in inverter gate drivers |
| Intelligent I/O Subsystem | 16-channel waveform generation + 8-channel input capture enables real-time encoder processing without CPU intervention |
| CRC-CCITT Hardware Engine | On-the-fly CRC-16 (X¹⁶ + X¹² + X⁵ + 1) calculation accelerates communication frame integrity checking in UART/I²C protocols |
| Flexible Clock Architecture | Four independent clock sources (main, sub, on-chip oscillator, PLL) with programmable dividers (1–16) enable precise timing across mixed-speed peripherals |
| Low-Power Operation Modes | Stop mode draws only 0.8 μA at 3.3 V, enabling battery-backed operation in standby or sleep states |
Applications
| Laser Printer Engine Control | Industrial PLC I/O Module |
|---|---|
Use Scenario: Real-time coordination of laser scanning motor, paper feed stepper, and toner fusing heater in mid-volume laser printers. IC Role / Device Role / Timing Role: Primary MCU executing motion control algorithms, managing 3-phase inverter for drum motor, and synchronizing high-speed serial comms with host controller. Use Value: Integrated dead-time timer and 34-channel ADC allow direct sensor interface and safe gate drive without external logic, reducing BOM count by ≥3 components. | Use Scenario: Local I/O conditioning and protocol translation in modular PLC backplanes with fieldbus connectivity. IC Role / Device Role / Timing Role: Edge-processing node handling analog input scaling, digital I/O state latching, and Modbus RTU over UART0–UART2. Use Value: 121 programmable I/Os with pull-up selection and hardware CRC offload reduce firmware overhead and improve deterministic response under 10 ms scan cycles. |
| Office Copier Paper Path Controller | Embedded HVAC Fan Inverter |
Use Scenario: Closed-loop speed and position control of multiple paper transport rollers and registration gates in digital copiers. IC Role / Device Role / Timing Role: Real-time servo controller using Timer A/B units for encoder feedback, PWM generation, and pulse-width measurement of optical sensors. Use Value: On-chip 2-phase encoder input (×3) and event counter mode eliminate need for external quadrature decoder ICs, cutting latency by >200 ns. | Use Scenario: Sensorless BLDC fan control in commercial HVAC systems requiring EMI-compliant switching and thermal derating. IC Role / Device Role / Timing Role: Field-oriented control (FOC) executor using X/Y converter for Clarke/Park transforms and 16-bit PWM with adjustable dead time. Use Value: Hardware X/Y converter (16×16 bit) accelerates motor math by 8× vs software implementation, enabling 20 kHz PWM carrier with 10 kHz current loop update. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F566TEADFP | 32-bit RX66T core, 128 KB RAM, 1 MB flash, integrated FOC engine, no mask ROM option | Targeted at higher-performance motor control with floating-point math and safety certification support | Select when migrating from legacy M32C to scalable RX platform with functional safety requirements |
| M30878FJGP | Same package and pinout; 512 KB + 4 KB data flash instead of mask ROM; supports in-system reprogramming | Suitable for prototyping or volume production where firmware updates are required post-deployment | Choose for design flexibility and field firmware upgrades - identical peripheral set and timing behavior |
Compared with R5F566TEADFP and M30878FJGP, the M30878MJB-XXXGP#U0 offers fixed-function determinism and lower cost for stable, high-volume embedded control where firmware immutability and minimal BOM are prioritized over upgradability or advanced math acceleration.
Availability
M30878MJB-XXXGP#U0 is available at Aetrix Electronics and suitable for industrial motor control, office equipment subsystems, and embedded HVAC fan inverters requiring stable component supply and long-term lifecycle assurance.
Supply support for M30878MJB-XXXGP#U0 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 automation, industrial machinery, and motor-driven equipment - emphasizing deterministic real-time performance, integrated analog/motor peripherals, and robust packaging.
FAQ
What is the maximum operating frequency and supply voltage range for the M30878MJB-XXXGP#U0?
The M30878MJB-XXXGP#U0 operates at up to 32 MHz with VCC1 between 4.2 V and 5.5 V, or at 24 MHz with VCC1 between 3.0 V and 5.5 V. VCC2 must be within 3.0 V to VCC1. These ranges are defined in the official Renesas REJ03B0127-0151 datasheet Rev.1.51, and the M30878MJB-XXXGP#U0 must not be operated outside these limits to ensure reliable function and longevity.
Does the M30878MJB-XXXGP#U0 include a CAN interface, and if so, how many channels are active?
No - the M30878MJB-XXXGP#U0 belongs to the M32C/87B variant, which explicitly excludes CAN functionality per Table 1.7 and Note 5 in the datasheet. While CAN0/CAN1 pin names appear in the 144-pin pinout (e.g., P8_2, P8_3), they are non-functional in this mask ROM version. The M30878MJB-XXXGP#U0 retains full UART, I²C, and intelligent I/O capability but omits CAN transceivers and protocol logic.
What package type and pin count does the M30878MJB-XXXGP#U0 use?
The M30878MJB-XXXGP#U0 uses a 144-pin plastic LQFP package designated PLQP0144KA-A (20 mm × 20 mm, 0.5 mm pitch), as confirmed in Tables 1.5–1.7 and Figure 1.3 of the Renesas datasheet REJ03B0127-0151. This package supports all 144 signal and power pins, including extended ports P11–P15 required for full peripheral access - a configuration not available in the 100-pin variants.
How much internal RAM and ROM does the M30878MJB-XXXGP#U0 provide?
The M30878MJB-XXXGP#U0 integrates 512 KB of mask-programmed ROM and 31 KB of on-chip RAM, as specified in Table 1.5 under "M32C/87 Group (1)" and verified in the product numbering system ('J' = 512 KB, 'M' = mask ROM). Unlike flash-based variants (e.g., M30878FJGP), it lacks data flash memory and cannot be reprogrammed in-system - making it ideal for finalized, high-volume firmware deployments.
Is the M30878MJB-XXXGP#U0 supported by modern Renesas development tools and debug interfaces?
Yes - the M30878MJB-XXXGP#U0 supports on-chip debug via the standard Renesas E8/E8a emulator interface and is compatible with the HEW (High-performance Embedded Workshop) IDE v4.x and later versions. Debug features include breakpoint setting, register inspection, and flash programming (for compatible variants); however, mask ROM content in the M30878MJB-XXXGP#U0 is read-only, so firmware updates require hardware replacement. Renesas continues to list the M32C/87 Group in its legacy support roadmap.
M30878MJB-XXXGP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- M16C™ M32C/80/87
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M32C/80
- Core Size:
- 16/32-Bit
- Speed:
- 32MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IEBus, IrDA, SIO, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 121
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- Mask ROM
- EEPROM Size:
- -
- RAM Size:
- 31K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 34x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
M30878MJB-XXXGP#U0 FAQ
1.How can I place an order for M30878MJB-XXXGP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for M30878MJB-XXXGP#U0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for M30878MJB-XXXGP#U0 reliable?
The price and inventory of M30878MJB-XXXGP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M30878MJB-XXXGP#U0 is usually 5 days.
3.What payment methods are accepted for M30878MJB-XXXGP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M30878MJB-XXXGP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M30878MJB-XXXGP#U0?
M30878MJB-XXXGP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M30878MJB-XXXGP#U0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for M30878MJB-XXXGP#U0?
For technical support, including M30878MJB-XXXGP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M30878MJB-XXXGP#U0 requirements.
6.How does Aetrix verify that M30878MJB-XXXGP#U0 is sourced from the original manufacturer or authorized distributors?
All M30878MJB-XXXGP#U0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that M30878MJB-XXXGP#U0 meets industry standards.
7.What is the process for return or replacement of M30878MJB-XXXGP#U0?
All M30878MJB-XXXGP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with M30878MJB-XXXGP#U0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The M30878MJB-XXXGP#U0 part is unused and in its original packaging.
Return procedure for M30878MJB-XXXGP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M30878MJB-XXXGP#U0 Tags
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