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Renesas M38049FFHHP#W4
- Part No.:
- M38049FFHHP#W4
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
M38049FFHHP#W4.pdf
- Description:
- MICROCONTROLLER, 8 BIT, FLASH, M
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
M38049FFHHP#W4 from Renesas Technology Corp. is a single-chip 8-bit CMOS microcomputer based on the 740 family core, featuring 60 KB flash memory, 2048 bytes RAM, 10-bit A-D converter (16 channels), 8-bit D-A converter (2 channels), I²C-BUS interface, and LED direct-drive capability for embedded control in household appliances and office automation equipment.
For engineers reviewing the M38049FFHHP#W4 datasheet, M38049FFHHP#W4 pinout, M38049FFHHP#W4 application, or M38049FFHHP#W4 equivalent, key selection considerations include its 64-pin LQFP (10 × 10 mm) package, 16.8 MHz max clock frequency, 2.7–5.5 V operating voltage (4.0–5.5 V for flash programming), integrated 16-bit watchdog timer, and dual serial I/O with UART and clock-synchronized modes.
Technical Context
The M38049FFHHP#W4 implements the standard 740-family instruction set with 71 basic machine-language instructions and supports interrupt handling via 23 sources across 16 vectors (9 external, 13 internal, 1 software). Its CPU includes an 8-bit accumulator, dual 8-bit index registers (X/Y), and a 16-bit program counter with stack-page-aware addressing.
It integrates three independent 8-bit timers (with 8-bit prescalers), one 16-bit timer, a dedicated PWM channel, and dual serial interfaces (SI/O1 and SI/O2) configurable as UART or clock-synchronized mode-plus SI/O3 with SCL/SDA pins enabled for I²C-BUS communication per the 3804 group specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 740-family 8-bit CPU with 71 instructions; supports index, indirect, and relative addressing for compact firmware in resource-constrained systems. |
| Flash Memory | 60 KB user-programmable flash (with 100 erase/program cycles); enables field-upgradable firmware without external memory. |
| RAM Size | 2048 bytes; sufficient for real-time data buffering, stack depth, and multi-tasking support in control applications. |
| A-D Converter | 10-bit resolution, 16 input channels; supports simultaneous sampling of analog sensors (e.g., temperature, voltage, current) in appliance feedback loops. |
| D-A Converter | 8-bit × 2 channels; provides precise analog output for motor speed reference, display brightness control, or actuator biasing. |
| I²C Interface | 1-channel hardware I²C-BUS master/slave; simplifies communication with EEPROMs, sensors, and displays using only two bidirectional pins (P32/SDA, P33/SCL). |
| Operating Voltage | 2.7–5.5 V (normal operation); 4.0–5.5 V required for flash programming-ensures compatibility with 3.3 V and 5 V system rails while safeguarding write integrity. |
Pinout & Package
Package: 64-pin LQFP (10 × 10 mm, 0.5 mm pitch, code HP). Pinout conforms to Fig. 3 and Table 2 (3804 group) in the official documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07/AN8–AN15 | Analog Input / Port 0 | 8-bit bidirectional port with 8 analog input channels; enables sensor multiplexing without external mux in compact designs. |
| P20–P27 (LED0–LED7) | LED Drive Outputs | High-current CMOS outputs capable of directly driving 7-segment displays or indicator LEDs-reducing BOM count. |
| P32/SDA, P33/SCL | I²C Bus Interface | N-channel open-drain pins with internal pull-up enable; compliant with SMBus level thresholds for robust inter-IC communication. |
| P30/DA1, P31/DA2 | D-A Converter Outputs | 8-bit voltage outputs referenced to VREF; used for analog setpoint generation or calibration signal injection. |
| XIN, XOUT | Crystal Oscillator Interface | Connects to external quartz crystal (e.g., 16.8 MHz) or ceramic resonator; supports high-accuracy timing for real-time control loops. |
| VCC, VSS, AVSS, VREF | Power & Reference | Dedicated analog/digital power domains and reference input ensure noise-immune A/D and D/A conversion performance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Clock Generation | Built-in dual clock circuits support main oscillator (up to 16.8 MHz) and sub-clock (32 kHz) for RTC and low-power sleep modes. |
| Low-Power Operation | 60 µW typical at 32 kHz / 3 V enables battery-backed operation in standby states for >1-year runtime in remote controls or smart meters. |
| Hardware Watchdog Timer | 16-bit autonomous watchdog with independent clock source prevents lockup in safety-critical appliance control logic. |
| Software Pull-Up Resistors | Bit-configurable internal pull-ups eliminate external resistors on 56 programmable I/O pins-reducing layout area and component cost. |
| Interrupt Flexibility | 23 interrupt sources including edge-triggered INT00–INT41, timer overflows, serial ready flags, and I²C event detection for responsive real-time response. |
Applications
| Home Appliance Control | Office Automation Device |
|---|---|
Use Scenario: Microcontroller unit in washing machine main board managing motor drive, water level sensing, temperature monitoring, and user interface. IC Role / Device Role / Timing Role: Central controller executing real-time PID loops, coordinating serial communication with display and sensor ICs via I²C and UART. Use Value: Integrated 10-bit A-D (16 ch), dual D-A outputs, and LED drive ports reduce external components needed for analog signal conditioning and UI feedback. |
Use Scenario: Embedded controller in multifunction printer managing paper feed, toner sensing, panel buttons, and USB-to-parallel bridge logic. IC Role / Device Role / Timing Role: System-on-chip managing peripheral I/O, real-time status reporting, and firmware updates via serial interface. Use Value: 60 KB flash memory allows storage of full device driver firmware and field-upgradable feature sets without external memory. |
| Industrial Panel Meter | Smart Thermostat Controller |
Use Scenario: Front-end measurement unit in DIN-rail mounted panel meter acquiring voltage/current inputs and driving 4-digit LED display. IC Role / Device Role / Timing Role: Analog acquisition engine with 10-bit A-D, digital signal processing unit, and direct LED segment driver. Use Value: P20–P27 LED drive capability eliminates external LED drivers; built-in 8-bit prescalers enable precise timing for display multiplexing. |
Use Scenario: Core controller in wall-mounted HVAC thermostat reading ambient temperature/humidity, controlling relay outputs, and managing LCD UI. IC Role / Device Role / Timing Role: Low-power sensor hub interfacing with I²C temperature/humidity sensors and driving local display and buzzer. Use Value: 60 µW low-speed mode extends battery life; I²C interface enables plug-and-play sensor integration without custom protocol development. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PLAFB#30 | RL78/G13-based 16-bit MCU; 64 KB flash, 4 KB RAM, 10-bit A-D (24 ch), no native I²C (requires software bit-banging) | Higher code efficiency and lower active power, but lacks hardware I²C and LED drive outputs | Select when migrating to modern low-power architecture with larger memory and enhanced peripherals-but requires redesign for I²C and display drive. |
| M38047M8HP#W4 | Mask ROM version (60 KB ROM); identical pinout, same 64-pin LQFP package, same peripheral set except flash programmability | Fixed firmware only; suitable for high-volume, unchanging applications where reprogramming is unnecessary | Choose for cost-sensitive, high-volume production where firmware is finalized and field updates are not required. |
Compared with R5F100PLAFB#30 and M38047M8HP#W4, the M38049FFHHP#W4 uniquely combines hardware I²C, LED direct drive, and field-upgradable flash in a legacy-compatible 740-family instruction set-making it optimal for maintaining existing codebases while adding connectivity and UI features.
Availability
M38049FFHHP#W4 is available at Aetrix Electronics and suitable for home appliance control, office automation devices, and industrial panel meters requiring stable component supply and long-term lifecycle support.
Supply support for M38049FFHHP#W4 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 Technology Corp. is a Japanese semiconductor manufacturer formed in 2003 through the merger of Hitachi and Mitsubishi Electric's semiconductor operations, specializing in microcontrollers, analog, and power devices.
The 3803/3804 group was designed specifically for cost-sensitive, high-reliability embedded control in consumer electronics-emphasizing integrated analog peripherals, low-voltage operation, and LED interface capability.
FAQ
What is the maximum operating frequency of the M38049FFHHP#W4?
The M38049FFHHP#W4 supports a maximum oscillation frequency of 16.8 MHz using an external quartz crystal or ceramic resonator connected between XIN and XOUT. At this frequency, the minimum instruction execution time is 0.24 µs, enabling responsive real-time control in appliance and automation applications. The M38049FFHHP#W4 also supports lower-frequency modes down to 32 kHz for ultra-low-power operation.
Does the M38049FFHHP#W4 support in-system programming?
Yes, the M38049FFHHP#W4 supports in-system programming via its built-in flash memory interface. Programming is performed byte-wise using software commands, with VPP = 11.7–12.6 V applied to the CNVSS pin. It allows up to 100 program/erase cycles and supports both batch erasing (via parallel/serial I/O) and block erasing (via CPU reprogramming mode), making the M38049FFHHP#W4 suitable for prototyping and field firmware updates.
What are the key differences between the M38049FFHHP#W4 and the M38039FFHHP#W4?
The M38049FFHHP#W4 belongs to the 3804 group and includes an I²C-BUS interface (P32/SDA, P33/SCL), whereas the M38039FFHHP#W4 is a 3803 group part without hardware I²C. Both share identical flash size (60 KB), RAM (2048 bytes), A-D/D-A converters, and package (64-pin LQFP). The M38049FFHHP#W4 adds one additional external interrupt source (23 vs. 21) and supports SMBus-level input thresholds on I²C pins-making the M38049FFHHP#W4 the preferred choice for systems requiring standardized two-wire communication.
Can the M38049FFHHP#W4 operate from a 3.3 V supply?
Yes, the M38049FFHHP#W4 operates from 2.7 V to 5.5 V in high-, middle-, and low-speed modes, including at 3.3 V nominal supply. However, flash programming requires VCC = 4.0–5.5 V and VPP = 11.7–12.6 V, so a separate 5 V rail or charge pump is necessary during firmware update. For continuous 3.3 V operation, the M38049FFHHP#W4 delivers full peripheral functionality-including A-D conversion, I²C, and LED drive-at reduced power consumption.
How many I/O pins does the M38049FFHHP#W4 provide, and which support analog functions?
The M38049FFHHP#W4 provides 56 programmable I/O pins across ports P0–P6. Of these, 16 pins (P00–P07/AN8–AN15, P60–P67/AN0–AN7) serve as analog inputs for the 10-bit A-D converter. Additionally, P30 and P31 function as 8-bit D-A outputs, while P20–P27 are optimized for high-current LED drive. All I/O pins support software-configurable pull-up resistors, eliminating the need for external components in most interface configurations.
M38049FFHHP#W4 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:
M38049FFHHP#W4 FAQ
1.How can I place an order for M38049FFHHP#W4 through Aetrix?
Please submit a Request for Quotation (RFQ) for M38049FFHHP#W4 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 M38049FFHHP#W4 reliable?
The price and inventory of M38049FFHHP#W4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38049FFHHP#W4 is usually 5 days.
3.What payment methods are accepted for M38049FFHHP#W4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38049FFHHP#W4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M38049FFHHP#W4?
M38049FFHHP#W4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38049FFHHP#W4 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 M38049FFHHP#W4?
For technical support, including M38049FFHHP#W4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38049FFHHP#W4 requirements.
6.How does Aetrix verify that M38049FFHHP#W4 is sourced from the original manufacturer or authorized distributors?
All M38049FFHHP#W4 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 M38049FFHHP#W4 meets industry standards.
7.What is the process for return or replacement of M38049FFHHP#W4?
All M38049FFHHP#W4 units undergo pre-shipment inspection (PSI). If there is an issue with M38049FFHHP#W4, 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 M38049FFHHP#W4 part is unused and in its original packaging.
Return procedure for M38049FFHHP#W4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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