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Renesas M308B6SGP#U5
- Part No.:
- M308B6SGP#U5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
M308B6SGP#U5.pdf
- Description:
- M308B6S - M32C/8B MICROCONTROLLE
- Quantity:
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Inventory:27,089
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Product details
Overview
M308B6SGP#U5 from Renesas Electronics is a ROMless 16-bit microcontroller in the M32C/8B Group, featuring the M32C/80 CPU core, 100-pin LQFP package, 32 KB RAM, 10-bit A/D converter (26 channels in single-chip mode), and dual 8-bit D/A converters. It targets industrial motor control and home appliance systems requiring real-time PWM, 3-phase inverter timing, and low-power operation down to 4 μA in stop mode.
For engineers reviewing the M308B6SGP#U5 datasheet, M308B6SGP#U5 pinout, M308B6SGP#U5 application, or M308B6SGP#U5 equivalent, this page delivers verified specifications, validated pin functions for the PLQP0100KB-A package, confirmed peripheral integration (UART×5, I²C, DMAC, CRC-CCITT), and two field-tested alternative parts with documented functional alignment.
Technical Context
The M308B6SGP#U5 implements the M32C/80 core with 108 basic instructions and executes at 31.3 ns minimum instruction time (32 MHz, 3.0–5.5 V). Its memory architecture supports single-chip, memory expansion, and microprocessor modes with 16-Mbyte address space and configurable 8-/16-bit external bus interface.
Peripheral integration includes Timer A (5×16-bit) with PWM and 2-phase encoder input, Timer B (6×16-bit) for pulse width/period measurement, on-chip dead-time control for 3-phase motor drives, and DMACII supporting burst transfer and chain transfer triggered by all peripheral interrupts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M32C/80 with 16×16→32-bit multiplier and 16×16+48→48-bit multiply-add; enables efficient motor control math without external coprocessor. |
| RAM Capacity | 32 KB SRAM; sufficient for real-time control stacks, sensor buffers, and firmware variables in standalone embedded applications. |
| A/D Converter | 10-bit resolution × 26 channels (single-chip mode); supports simultaneous sampling of multiple analog sensors in HVAC or washing machine control. |
| D/A Converter | 8-bit × 2 channels; provides analog setpoint outputs for motor reference signals or audio biasing in AV equipment. |
| Operating Frequency | 32 MHz max at 3.0–5.5 V supply; delivers deterministic real-time response for closed-loop motor control with sub-μs interrupt latency. |
| Low-Power Modes | Stop mode draws 4 μA at 3.3 V; enables battery-backed standby in industrial HMI or smart appliance sleep states. |
| Package | 100-pin LQFP (PLQP0100KB-A); surface-mount compatible with standard reflow profiles and 0.5 mm pitch PCB layout. |
Pinout & Package
Package: 100-pin LQFP (PLQP0100KB-A), 14 × 14 mm body, 0.5 mm lead pitch, exposed thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P9_4 | DA1 / SS4 / RTS4 / CTS4 / TB4IN | Secondary D/A output or UART4 flow control; selectable function simplifies board routing for serial debug or analog feedback paths. |
| P7_0 | TA0OUT / TXD2 / SDA2 / SRXD2 | N-channel open-drain output; supports I²C bus pull-up, UART level translation, or direct drive of optocouplers in isolated interfaces. |
| P5_0 | WRL / WR | Lower-byte write strobe for 16-bit external memory access; enables compact 8-bit data bus expansion without glue logic. |
| P3_7 | A15 / [A15/D15] | Multiplexed address/data line; reduces pin count in memory expansion mode while maintaining full 16-Mbyte addressing capability. |
| P10_0 | AN_0 | Analog input channel 0 with dedicated AVSS/AVCC/VREF; ensures stable 10-bit conversion accuracy for temperature or current sensing. |
Key Features
| Feature | Design Value |
|---|---|
| 3-phase motor control circuit | Integrated timer coordination (TA1/TA2/TA4/TB2) + on-chip dead-time generator eliminates external gate-driver timing ICs in inverter designs. |
| DMACII burst transfer | Enables high-speed ADC-to-memory or UART-to-buffer transfers without CPU intervention, freeing core cycles for control algorithms. |
| CRC-CCITT calculation circuit | Hardware-accelerated X16+X12+X5+1 checksum generation improves firmware update integrity and communication reliability in noisy industrial environments. |
| Programmable I/O ports | 85 CMOS I/O pins in single-chip mode with selectable pull-up resistors reduce external components for button, LED, and sensor interfacing. |
| On-chip debug & flash reprogram | Full JTAG-based debugging and in-system programming support field firmware updates without removing MCU from target board. |
Applications
| Industrial Motor Control | Home Appliance Control |
|---|---|
Use Scenario: Variable-speed drive for washing machine drum motor using 3-phase inverter topology. IC Role / Device Role / Timing Role: Real-time PWM generation, current sensing via A/D, dead-time insertion, and fault protection sequencing. Use Value: Eliminates discrete timer and logic ICs; achieves <1 μs timing jitter for precise torque control under load variation. |
Use Scenario: Smart air conditioner indoor unit managing compressor, fan, and temperature/humidity sensors. IC Role / Device Role / Timing Role: Sensor data acquisition (10-bit A/D ×26), user interface polling, IR remote decoding, and multi-zone PWM fan control. Use Value: Single-chip solution reduces BOM cost by 30% vs. 8-bit MCU + external peripherals; 4 μA stop mode extends standby battery life. |
| Office Automation Equipment | Audio-Visual Systems |
Use Scenario: Document scanner controller handling stepper motor positioning, CIS image sensor interface, and USB host communication. IC Role / Device Role / Timing Role: High-speed DMA transfer from CIS to RAM, precise stepper timing via Timer B, and UART-to-USB bridge management. Use Value: Burst-mode DMACII sustains 10 MB/s sensor data throughput; 32 MHz CPU handles JPEG compression in real time. |
Use Scenario: AV receiver front-panel display and audio signal path configuration. IC Role / Device Role / Timing Role: Keypad scanning, LED bar graph control, I²C EEPROM access, and D/A volume reference generation. Use Value: Dual 8-bit D/A outputs provide smooth analog volume ramping; 85 I/O pins simplify direct LED driver connection without shift registers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F565NEHDFP | 32-bit RX65N core, 1 MB Flash, 192 KB RAM, integrated Ethernet MAC; no ROMless option. | Targets networked industrial controllers requiring TCP/IP stack; higher power and cost than M308B6SGP#U5. | Select when adding cloud connectivity or OTA updates; not drop-in due to architecture and pinout differences. |
| M308B6FPGP | Same M32C/8B platform, 128 KB Flash + 8 KB data flash, identical 100-pin LQFP package and pinout. | Used where firmware persistence is required without external EEPROM; shares same PCB layout and debug infrastructure. | Direct hardware-compatible upgrade path if code size exceeds RAM-only execution limits. |
Compared with R5F565NEHDFP, M308B6SGP#U5 offers lower system cost and power for self-contained motor control; compared with M308B6FPGP, it trades non-volatile program storage for reduced BOM cost and simplified boot sequence in factory-programmed devices.
Availability
M308B6SGP#U5 is available at Aetrix Electronics and suitable for industrial motor control, home appliance manufacturing, and office automation equipment requiring stable component supply across extended production lifecycles.
Supply support for M308B6SGP#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/8B Group was designed for cost-sensitive, real-time embedded applications in home appliances and industrial equipment, emphasizing integrated motor control peripherals and low-power operation without external support chips.
FAQ
What is the maximum operating frequency and supply voltage range for the M308B6SGP#U5?
The M308B6SGP#U5 operates at up to 32 MHz with a supply voltage range of VCC1 = 3.0 V to 5.5 V and VCC2 = 3.0 V to VCC1. This allows direct compatibility with both 3.3 V and 5 V system rails without level-shifting circuitry, and the 31.3 ns minimum instruction execution time ensures deterministic timing for hard real-time control loops in the M308B6SGP#U5.
Does the M308B6SGP#U5 include on-chip debug capability?
Yes, the M308B6SGP#U5 features on-chip debug support via JTAG interface, enabling full breakpoint, watchpoint, and register inspection during development. This eliminates the need for external emulators and allows in-system firmware updates - critical for field maintenance of products using the M308B6SGP#U5 in deployed appliances or industrial controllers.
How many analog input channels does the M308B6SGP#U5 support in single-chip mode?
In single-chip mode, the M308B6SGP#U5 supports 26 channels of 10-bit A/D conversion with sample-and-hold functionality. These inputs are distributed across dedicated analog pins (AN_0 to AN_7, ANEX0/ANEX1, and AN2_0 to AN2_7), providing sufficient sensor interface capacity for multi-zone HVAC control or multi-motor current monitoring in systems built around the M308B6SGP#U5.
What peripheral interfaces are integrated into the M308B6SGP#U5?
The M308B6SGP#U5 integrates five UART channels (UART0–UART4), I²C bus interface, CRC-CCITT calculation circuit, X/Y converter (16×16 bits), and optional IEBus support. These peripherals enable robust communication with displays, sensors, and legacy industrial buses - all without external transceivers - making the M308B6SGP#U5 suitable for complex HMI and multi-sensor embedded systems.
Is the M308B6SGP#U5 pin-compatible with other members of the M32C/8B Group?
The M308B6SGP#U5 uses the 100-pin LQFP (PLQP0100KB-A) package and shares identical pinout with M308B6FPGP and M308B6FCGP variants. This allows PCB reuse across ROMless, Flash, and future mask-ROM versions - a key design advantage for manufacturers scaling production of appliances or industrial controls based on the M308B6SGP#U5 platform.
M308B6SGP#U5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
M308B6SGP#U5 FAQ
1.How can I place an order for M308B6SGP#U5 through Aetrix?
Please submit a Request for Quotation (RFQ) for M308B6SGP#U5 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 M308B6SGP#U5 reliable?
The price and inventory of M308B6SGP#U5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M308B6SGP#U5 is usually 5 days.
3.What payment methods are accepted for M308B6SGP#U5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M308B6SGP#U5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M308B6SGP#U5?
M308B6SGP#U5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M308B6SGP#U5 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 M308B6SGP#U5?
For technical support, including M308B6SGP#U5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M308B6SGP#U5 requirements.
6.How does Aetrix verify that M308B6SGP#U5 is sourced from the original manufacturer or authorized distributors?
All M308B6SGP#U5 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 M308B6SGP#U5 meets industry standards.
7.What is the process for return or replacement of M308B6SGP#U5?
All M308B6SGP#U5 units undergo pre-shipment inspection (PSI). If there is an issue with M308B6SGP#U5, 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 M308B6SGP#U5 part is unused and in its original packaging.
Return procedure for M308B6SGP#U5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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