Renesas M38049FFLSP#U0
- Part No.:
- M38049FFLSP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-SDIP (0.750", 19.05mm)
- Datasheet:
-
M38049FFLSP#U0.pdf
- Description:
- 8-BIT, FLASH, MELPS740 CPU
- Quantity:
- Payment:

- Shipping:

Inventory:746
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Product details
Overview
M38049FFLSP#U0 from Renesas Electronics is an 8-bit CMOS microcomputer based on the 740 family core, designed for analog-intensive control applications in household appliances and consumer electronics. It integrates 60 KB Flash ROM, 2048 bytes RAM, a 10-bit 16-channel A/D converter, dual 8-bit D/A converters, and 56 programmable I/O ports-including eight LED drive pins with 15 mA average current capability.
For engineers reviewing the M38049FFLSP#U0 datasheet, M38049FFLSP#U0 pinout, M38049FFLSP#U0 application, or M38049FFLSP#U0 equivalent, key selection considerations include its 64-pin SDIP package, 16.8 MHz max oscillation frequency, −20 to 85 °C operating range, Flash memory programmability, and integrated I²C, UART, and PWM peripherals for embedded sensor and actuator interfacing.
Technical Context
The M38049FFLSP#U0 implements the standard 740 Family instruction set (71 instructions), with minimum execution time of 0.24 μs at 16.8 MHz. Its CPU includes accumulator, index registers X/Y, stack pointer, and 16-bit program counter, supported by a processor status register with carry, zero, interrupt disable, and overflow flags.
Two built-in clock generating circuits support main clock (XIN/XOUT) and sub-clock (XCIN/XCOUT) operation, enabling high-speed (4.5–5.5 V @ 16.8 MHz), middle-speed, and low-speed (2.7–5.5 V @ 32 kHz) modes. Power dissipation is typ. 27.5 mW in high-speed mode and 1200 μW in low-speed mode at 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 740 Family 8-bit CPU with 71 instructions and 0.24 μs min instruction cycle at 16.8 MHz |
| Memory | 60 KB Flash ROM (including ID code area) and 2048 bytes RAM for firmware storage and real-time variable handling |
| A/D Converter | 10-bit resolution, 16 input channels (P00–P07, P60–P67), with 8-bit reading mode for faster sampling |
| D/A Converter | Two independent 8-bit channels (P30/DA1, P31/DA2) for analog output control of actuators or references |
| I/O Capability | 56 programmable CMOS I/O pins across ports P0–P6; P20–P27 support LED direct drive (15 mA avg, 30 mA peak) |
| Timers & PWM | Four 8-bit timers with 8-bit prescaler, one 16-bit timer (Timer Z), and one 8-bit PWM channel (P56/PWM) |
| Communication Interfaces | UART/Clock-sync ×2 (SI/O1, SI/O2), Clock-sync ×1 (SI/O3), and multi-master I²C-BUS (P32/SDA, P33/SCL) |
Pinout & Package
Package: PRDP0064BA-A (64P4B), 64-pin 750 mil shrink plastic-molded SDIP, 27.2 mm × 10.16 mm body, 0.8 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary digital power domain: 2.7–5.5 V operation; VSS must be connected to system ground |
| AVSS / VREF | Analog ground / Reference voltage | Separate analog ground plane required; VREF sets full-scale for A/D and D/A conversion |
| XIN / XOUT | Main clock oscillator interface | Connect external ceramic resonator or quartz crystal (1–16.8 MHz); supports external clock input on XIN only |
| P20–P27 | LED drive outputs | Eight dedicated high-current I/O pins (15 mA avg, 30 mA peak per pin, 90 mA total) for direct LED matrix or segment control |
| P32/SDA / P33/SCL | I²C-BUS interface | Open-drain outputs supporting SMBus-compatible logic levels; require external pull-up resistors |
| P30/DA1 / P31/DA2 | Digital-to-analog outputs | Two independent 8-bit voltage-output DAC channels referenced to VREF and AVSS |
| P60–P67 / P00–P07 | Analog input channels | 16-channel A/D input mapping: P60–P67 (AN0–AN7), P00–P07 (AN8–AN15) |
| RESET | Active-low reset input | Asynchronous reset signal; requires external pull-up and debouncing for reliable startup |
Key Features
| Feature | Design Value |
|---|---|
| Integrated analog subsystem | 10-bit 16-channel A/D + dual 8-bit D/A enables closed-loop analog control without external converters |
| LED-optimized I/O | Eight dedicated high-current drive pins (P20–P27) eliminate need for external LED drivers in display or indicator systems |
| Multi-speed clock architecture | Three operational modes (high/middle/low-speed) with automatic sub-clock switching reduce active power to 1200 μW in standby |
| Flash memory flexibility | Byte-level programming and block erasing (100-cycle endurance) support in-field firmware updates and parameter tuning |
| Robust peripheral integration | UART, I²C, PWM, watchdog timer, and 21-interrupt-source controller simplify BOM for appliance motor/sensor control |
Applications
| Home Appliance Control | Digital Camera Module |
|---|---|
Use Scenario: Temperature, motor speed, and user interface control in washing machines and air conditioners. IC Role / Device Role / Timing Role: Central microcontroller managing sensor inputs (thermistors, hall sensors), driving relays/LEDs, and executing PID loops via integrated A/D and PWM. Use Value: Eliminates discrete op-amps and external DACs; 60 KB Flash accommodates multiple regional firmware variants and calibration tables. |
Use Scenario: Lens focus control, flash timing, and LCD backlight regulation in compact digital cameras. IC Role / Device Role / Timing Role: System-on-chip controller coordinating image sensor interface, motor driver signals, and battery-powered low-power sleep states. Use Value: Low-speed 32 kHz sub-clock mode draws only 1200 μW during standby; integrated 10-bit A/D monitors battery voltage and temperature. |
| Consumer Audio Equipment | Industrial Panel Meter |
Use Scenario: Volume, tone, and source selection in portable audio players and smart speakers. IC Role / Device Role / Timing Role: Embedded controller interfacing rotary encoders, push buttons, OLED displays, and audio DACs via I²C and UART. Use Value: Built-in software pull-up resistors reduce external component count; P20–P27 directly drive status LEDs without current-limiting resistors. |
Use Scenario: Analog signal acquisition and local display in HVAC monitoring and process instrumentation. IC Role / Device Role / Timing Role: Standalone measurement node converting 4–20 mA or thermocouple inputs using A/D, then driving 7-segment LED displays via P20–P27. Use Value: Dual 8-bit D/A outputs generate precise reference voltages for analog front-end calibration; −20 to 85 °C rating ensures field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#30 | RL78/G13 core, 32 KB Flash, 2.5–5.5 V supply, 10-bit 12-channel A/D, no integrated D/A | Lacks dual D/A and LED drive current capability; requires external components for analog output | Preferred when lower power (190 μA/MHz) and modern toolchain support outweigh need for on-chip DACs and LED drivers |
| HD64F3687FPV | H8/300H core, 64 KB Flash, 4 KB RAM, 10-bit 8-channel A/D, no D/A, 64-pin LQFP only | No LED drive pins; limited analog integration; higher pin count but no FLGA/SDIP package options | Suitable for legacy H8-based designs requiring larger RAM and extended interrupt vector table, but not for cost-sensitive LED-centric applications |
Compared with R5F100LEAFB#30 and HD64F3687FPV, the M38049FFLSP#U0 uniquely combines dual 8-bit D/A, eight high-current LED drivers, and 64-pin SDIP packaging-enabling compact, low-BOM appliance controllers without sacrificing analog precision or visual feedback capability.
Availability
M38049FFLSP#U0 is available at Aetrix Electronics and suitable for home appliance control, digital camera modules, consumer audio equipment, and industrial panel meters requiring stable component supply across long-lifecycle production programs.
Supply support for M38049FFLSP#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, and power solutions for automotive, industrial, and consumer markets.
The M38049FFLSP#U0 belongs to the 3804 Group (Spec.L) product line, designed specifically for cost-sensitive, analog-rich embedded control in household products and office automation equipment where integrated A/D, D/A, and LED drive reduce system complexity.
FAQ
What is the maximum operating frequency of the M38049FFLSP#U0?
The M38049FFLSP#U0 supports a maximum oscillation frequency of 16.8 MHz using an external ceramic resonator or quartz crystal connected between XIN and XOUT. At this frequency, the minimum instruction execution time is 0.24 μs in high-speed mode with VCC = 4.5–5.5 V.
Does the M38049FFLSP#U0 include built-in D/A converters?
Yes, the M38049FFLSP#U0 integrates two independent 8-bit D/A converters (DA1 on P30 and DA2 on P31), each referenced to VREF and AVSS. These support analog output generation for sensor calibration, bias voltage control, or actuator signaling without external DAC ICs.
What package type does the M38049FFLSP#U0 use?
The M38049FFLSP#U0 uses the PRDP0064BA-A (64P4B) package: a 64-pin shrink plastic-molded SDIP with 750 mil width, 27.2 mm × 10.16 mm body size, and 0.8 mm lead pitch-designed for through-hole assembly and thermal reliability in consumer-grade applications.
Can the M38049FFLSP#U0 drive LEDs directly?
Yes, the M38049FFLSP#U0 provides eight dedicated LED drive pins (P20–P27) capable of 15 mA average current and 30 mA peak current per pin (90 mA total). This allows direct connection to common-anode or common-cathode LED segments without external transistor drivers.
What is the operating temperature range for the M38049FFLSP#U0?
The M38049FFLSP#U0 is rated for an operating ambient temperature range of −20 °C to +85 °C, consistent with Renesas' "Standard" quality grade classification for use in household appliances, office equipment, and consumer electronics.
M38049FFLSP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-SDIP (0.750", 19.05mm)
- Series:
- 740/38000
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 740
- Core Size:
- 8-Bit
- Speed:
- 16.8MHz
- Connectivity:
- I2C, UART/USART
- Peripherals:
- PWM, WDT
- Number of I/O:
- 56
- Program Memory Size:
- 60KB (60K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x10b; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
M38049FFLSP#U0 FAQ
1.How can I place an order for M38049FFLSP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for M38049FFLSP#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 M38049FFLSP#U0 reliable?
The price and inventory of M38049FFLSP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38049FFLSP#U0 is usually 5 days.
3.What payment methods are accepted for M38049FFLSP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38049FFLSP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M38049FFLSP#U0?
M38049FFLSP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38049FFLSP#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 M38049FFLSP#U0?
For technical support, including M38049FFLSP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38049FFLSP#U0 requirements.
6.How does Aetrix verify that M38049FFLSP#U0 is sourced from the original manufacturer or authorized distributors?
All M38049FFLSP#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 M38049FFLSP#U0 meets industry standards.
7.What is the process for return or replacement of M38049FFLSP#U0?
All M38049FFLSP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with M38049FFLSP#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 M38049FFLSP#U0 part is unused and in its original packaging.
Return procedure for M38049FFLSP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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