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Renesas M306S0FAGP#U3
- Part No.:
- M306S0FAGP#U3
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
M306S0FAGP#U3.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,117
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Product details
Overview
M306S0FAGP#U3 from Renesas is a single-chip 16-bit microcomputer integrating M16C/60 CPU core, IT800 PLC modem core, and internal analog front end (AFE) in a 64-pin LQFP package. It delivers 7.5 Kbps PLC data rate using DCSK spread spectrum modulation, operates from 3.0 V to 3.6 V, and includes 96 KB flash ROM and 24 KB RAM - designed for smart metering and home networking over AC power lines.
For engineers reviewing the M306S0FAGP#U3 datasheet, M306S0FAGP#U3 pinout, M306S0FAGP#U3 application, or M306S0FAGP#U3 equivalent, key selection criteria include its integrated IT800 PHY compliance with FCC/ARIB/CENELEC bands, 5-channel 16-bit Timer A, dual UART + clock-synchronous serial I/O, and dedicated AFE interface pins for line-coupled PLC signal conditioning.
Technical Context
The M306S0FAGP#U3 implements a tightly coupled architecture where the M16C/60 CPU core communicates with the IT800 modem core via dedicated synchronous serial I/O (SILO4), interrupt signals (nINT, nCD0/nCD1), and control lines (TXnRX, CLR, nPHY_RES, DCLK). Its internal AFE includes three 1-bit ADC channels, a 10-bit DAC, preamplifier, and comparator blocks - all mapped to specific analog pins (PRE_INP/PRE_INN, CHx_INP/CHx_INN, FBx, IOUT/IOUTC).
Power-line communication functionality relies on hardware-level integration: the IT800 PHY handles DCSK modulation/demodulation, forward short-block soft-decoding error correction, and CRC-16, while the M16C core manages DLL-layer protocol stack execution. The device supports multiple operating temperature grades (–40°C to +85°C for U3), uses an on-chip PLL with external 5.12 MHz crystal, and requires external line-coupling circuitry for AC mains interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/60 16-bit RISC core with 91 instructions; 65.1 ns min instruction time at 15.36 MHz BCLK |
| Memory | 96 KB on-chip flash ROM + 24 KB RAM; 1 MB address space; flash endurance: 100 program/erase cycles |
| PLC Performance | DCSK modulation; 7.5 Kbps (FCC/ARIB), 2.5 Kbps (CENELEC B-band); compliant with FCC Part 15, ARIB STD-T108, EN50065-1 |
| Analog Front End | Internal 10-bit DAC + three 1-bit ADCs + preamp + comparators; dedicated analog pins (VREF, PRE_INP/INN, CHx_INP/INN, FBx) |
| Peripherals | 5× 16-bit Timer A channels; 3× serial I/O (UART/clock-sync/I²C); 2× DMAC channels; 21-interrupt sources with 7 priority levels |
| Supply & Temp | 3.0 V–3.6 V operation; –40°C to +85°C ambient range (U3 grade); 70 mA typical current at 3.3 V / 5.12 MHz |
| Package | 64-pin plastic LQFP (PLQP0064KB-A / 64P6Q-A); lead-free; 10 mm × 10 mm × 1.4 mm body |
Pinout & Package
64-pin LQFP (PLQP0064KB-A) with exposed thermal pad; RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40 | IT800 TXnRX output | Drives IT800 modem's transmit/receive control line; must be configured as output (PD4_0 = 1) |
| P41 | IT800 TS input | Receives timing sync signal from IT800; configured as input (PD4_1 = 0); used for core-to-PHY synchronization |
| P42 | IT800 CLR output | Clears IT800 internal state; active-low; must be driven high to enable normal operation |
| P53, P54 | IT800 nCD0/nCD1 inputs | Carrier detect status flags from IT800 PHY; indicate presence of valid PLC signal on respective bands |
| P56 | IT800 nPHY_RES output | Active-low reset to IT800 modem core; synchronized with M16C reset sequence |
| P82 | IT800 nINT input | Interrupt request from IT800 to M16C core; triggers software handling of PHY events (e.g., packet ready) |
| P95–P97 | IT800 DCLK/DI/DO | SILO4-based synchronous serial interface: DCLK (clock), DI (data in), DO (data out) for register access and data transfer |
| PRE_INP/INN | AFE preamp differential input | Accepts conditioned analog signal from line coupling network; common-mode rejection critical for noise immunity |
| CH1–CH3_INP/INN | AFE channel comparator inputs | Three independent differential inputs for signal monitoring across frequency bands (e.g., CENELEC A/B) |
| IOUT / IOUTC | AFE 10-bit DAC differential output | Generates precise bias/reference currents for amplifier stages; requires external REXT resistor (pin 64) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated IT800 PLC PHY | Eliminates need for external modem IC; enables certified narrowband PLC without discrete RF components |
| On-chip AFE with 3-channel sensing | Reduces BOM count by integrating preamp, comparators, and DAC - supports multi-band CENELEC/FCC monitoring |
| Dedicated SILO4 interface to IT800 | Hardware-synchronized serial link ensures deterministic latency between CPU and PHY; avoids software polling overhead |
| Programmable interrupt mapping for PLC events | nINT, nCD0, nCD1, and timer A interrupts allow real-time response to carrier detection, packet arrival, and timing windows |
| Flash memory with 100-cycle endurance | Enables field firmware updates for protocol stack (e.g., IT800DLL) and application logic without requiring external EEPROM |
Applications
| Smart Electricity Meter | Home Energy Monitor |
|---|---|
Use Scenario: Two-way communication between utility meter and concentrator over existing 230 V AC wiring. IC Role / Device Role / Timing Role: M306S0FAGP#U3 serves as the primary PLC controller, executing IT800DLL stack and managing AFE signal acquisition during burst transmission windows. Use Value: Achieves CENELEC-compliant 2.5 Kbps robust mode operation in noisy residential environments with no external modem required. |
Use Scenario: Real-time load profiling and appliance identification via PLC-based current/voltage sampling across household circuits. IC Role / Device Role / Timing Role: M306S0FAGP#U3 samples analog inputs via internal AFE, processes waveform data in RAM, and transmits aggregated metrics over PLC. Use Value: Integrated 3-channel comparator and preamp enable simultaneous band-selective sensing (e.g., 20–80 kHz + 95–125 kHz) without external op-amps. |
| Streetlight Control Node | Building Automation Gateway |
Use Scenario: Remote firmware update and status reporting for LED streetlights connected to municipal low-voltage grid. IC Role / Device Role / Timing Role: M306S0FAGP#U3 acts as edge node PLC transceiver, buffering commands from central SCADA and triggering local PWM dimming control. Use Value: 7.5 Kbps standard mode supports fast OTA updates; flash memory endurance allows >100 field reprogramming cycles. |
Use Scenario: Bridging BACnet/IP devices to legacy HVAC equipment via power-line backbone in commercial buildings. IC Role / Device Role / Timing Role: M306S0FAGP#U3 runs dual-stack firmware (BACnet MSTP + IT800DLL), translating protocol frames across Ethernet and PLC domains. Use Value: Dual UART + clock-sync serial I/O enables concurrent connection to RS-485 fieldbus and PLC PHY - no external bridge IC needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PLC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Renesas M306S0FADGP#U3 | Same package and core; 96 KB flash but D-version silicon - revised AFE calibration and enhanced ESD tolerance per Renesas DS0201EJ0502 Rev.5.02 Table 1.1.4 | Targeted for new designs requiring improved analog stability in high-noise industrial settings; not drop-in compatible due to AFE characterization differences | Select M306S0FADGP#U3 when long-term production stability under variable line impedance is prioritized over legacy design reuse |
| STMicroelectronics ST7580 | Dedicated PLC SoC (ARM Cortex-M0 + PRIME/IEEE 1901.2 PHY); no integrated MCU flash/RAM; requires external host processor | Used in host-processor-based gateways where M306S0FAGP#U3's embedded firmware execution capability is unnecessary | Choose ST7580 only if system already employs a separate application processor and PLC is purely a physical-layer offload function |
Compared with M306S0FADGP#U3, the M306S0FAGP#U3 offers identical flash/RAM and pinout but earlier AFE tuning - suitable for cost-sensitive metering where full D-version qualification isn't required. Versus ST7580, M306S0FAGP#U3 eliminates external host dependency, reducing PCB area and BOM count by integrating both protocol stack and PHY control.
Availability
M306S0FAGP#U3 is available at Aetrix Electronics and suitable for smart metering, home energy monitoring, streetlight control, and building automation gateways requiring stable component supply across extended product lifecycles.
Supply support for M306S0FAGP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT applications.
The M16C/6S group was designed specifically for narrowband power-line communication systems - integrating CPU, PLC modem, and AFE to simplify certification and reduce bill-of-materials for smart grid endpoints.
FAQ
What is the maximum data rate supported by the M306S0FAGP#U3 for power-line communication?
The M306S0FAGP#U3 supports up to 7.5 Kbps in Standard Mode (SM) for FCC and ARIB regulatory bands (120–400 kHz), and 2.5 Kbps in Robust Mode (RM) for CENELEC B-band (95–125 kHz). These rates are achieved using Yitran's patented DCSK modulation and are confirmed in the R01DS0201EJ0502 datasheet Table 1.1.2. The M306S0FAGP#U3 does not support higher-rate G3-PLC or PRIME v1.4 protocols.
Does the M306S0FAGP#U3 include on-chip flash memory, and what is its endurance rating?
Yes, the M306S0FAGP#U3 integrates 96 KB of on-chip flash memory with a rated endurance of 100 program/erase cycles at operating temperatures from –40°C to +85°C. This specification is documented in Tables 1.1.1 and 1.1.5 of the R01DS0201EJ0502 datasheet. The M306S0FAGP#U3 flash is intended for firmware storage and infrequent field updates - not for high-frequency data logging.
Which pins on the M306S0FAGP#U3 are dedicated to the internal IT800 PLC modem interface?
The M306S0FAGP#U3 uses eight dedicated pins for IT800 core communication: P40 (TXnRX), P41 (TS), P42 (CLR), P53 (nCD0), P54 (nCD1), P56 (nPHY_RES), P82 (nINT), and P95–P97 (DCLK/DI/DO). These are defined in Table 1.1.7 and Figure 1.1.4 of the R01DS0201EJ0502 datasheet. All require specific direction register settings (e.g., PD4_0 = 1 for P40 output) to function correctly.
Is external analog front-end circuitry required when using the M306S0FAGP#U3 for PLC applications?
Yes, the M306S0FAGP#U3 includes an internal AFE (10-bit DAC, 3× 1-bit ADCs, preamp, comparators) but requires external line-coupling components: a high-voltage isolation transformer, common-mode choke, and bandpass filters tuned to target frequencies (e.g., 95–125 kHz for CENELEC B-band). The internal AFE interfaces directly to these external circuits via PRE_INP/INN and CHx_INP/INN pins - no external op-amps or ADCs are needed.
What development tools and firmware are recommended for the M306S0FAGP#U3?
Renesas recommends the IT800DLL (D2DL firmware) as the Data Link Layer stack for the M306S0FAGP#U3, optimized for Yitran's IT800 technology. Development is supported by the Renesas E1/E20 debuggers, CS+ IDE, and the M306S0FAGP#U3 evaluation board (if available). Firmware availability and integration guidance are provided in Appendix A of R01DS0201EJ0502 - contact Renesas technical support for D2DL licensing.
M306S0FAGP#U3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- M16C™ M16C/60/6S
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M16C/60
- Core Size:
- 16-Bit
- Speed:
- 15MHz
- Connectivity:
- I2C, SIO, UART/USART
- Peripherals:
- DMA, WDT
- Number of I/O:
- 20
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
M306S0FAGP#U3 FAQ
1.How can I place an order for M306S0FAGP#U3 through Aetrix?
Please submit a Request for Quotation (RFQ) for M306S0FAGP#U3 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 M306S0FAGP#U3 reliable?
The price and inventory of M306S0FAGP#U3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M306S0FAGP#U3 is usually 5 days.
3.What payment methods are accepted for M306S0FAGP#U3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M306S0FAGP#U3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M306S0FAGP#U3?
M306S0FAGP#U3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M306S0FAGP#U3 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 M306S0FAGP#U3?
For technical support, including M306S0FAGP#U3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M306S0FAGP#U3 requirements.
6.How does Aetrix verify that M306S0FAGP#U3 is sourced from the original manufacturer or authorized distributors?
All M306S0FAGP#U3 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 M306S0FAGP#U3 meets industry standards.
7.What is the process for return or replacement of M306S0FAGP#U3?
All M306S0FAGP#U3 units undergo pre-shipment inspection (PSI). If there is an issue with M306S0FAGP#U3, 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 M306S0FAGP#U3 part is unused and in its original packaging.
Return procedure for M306S0FAGP#U3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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