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Renesas M38869FFAHP#UU
- Part No.:
- M38869FFAHP#UU
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
M38869FFAHP#UU.pdf
- Description:
- IC MCU 8BIT 60KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:172
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Product details
Overview
M38869FFAHP#UU from Renesas Electronics is an 8-bit CMOS microcontroller based on the 740 family core, designed for embedded control systems requiring analog signal processing. It integrates a 10-bit 8-channel A-D converter, 8-bit 2-channel D-A converter, 14-bit PWM outputs (2 channels), 8-bit timers (4 units), and dual serial I/O (UART + clock-synchronized). It targets consumer electronics and household appliances with 49,152-byte Flash ROM and 2,048-byte RAM.
For engineers reviewing the M38869FFAHP#UU datasheet, M38869FFAHP#UU pinout, M38869FFAHP#UU application, or M38869FFAHP#UU equivalent, key selection criteria include Flash memory programmability (100 erase/write cycles), 2.7–5.5 V operating voltage range (with 4.0–5.5 V required for Flash operation), -20 to +85°C industrial temperature grade, and 80-pin LQFP (80P6Q-A) package compatibility.
Technical Context
The M38869FFAHP#UU implements a single-chip 8-bit architecture with built-in clock generation circuits supporting external ceramic resonators or quartz crystals. Its dual serial I/O subsystems support UART and synchronous communication modes, while the multi-master I²C bus interface is optional via configuration.
Analog integration includes dedicated AVSS and VREF pins, eight comparator channels, and hardware-controlled PWM outputs synchronized to internal timers. The device supports three operating speed modes-high-speed (10 MHz), middle-speed, and low-speed (32 kHz)-with corresponding power dissipation of 40 mW and 60 µW respectively.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 8-bit 740-family CPU with 71 basic instructions and 0.4 µs min instruction cycle at 10 MHz |
| Memory | 49,152-byte Flash ROM (user space: 49,022 bytes) and 2,048-byte RAM |
| A/D Converter | 10-bit resolution, 8 input channels, referenced to VREF and powered by AVSS |
| D/A Converter | 8-bit resolution, 2 output channels (DA1/DA2), usable as PWM01/PWM11 |
| Timers & PWM | Four 8-bit timers; two 14-bit PWM generators with independent duty-cycle control |
| Operating Voltage | 2.7–5.5 V in middle/low-speed modes; 4.0–5.5 V required for Flash programming and high-speed mode |
| Package | 80-pin plastic LQFP (80P6Q-A, 0.5 mm pitch), RoHS-compliant |
Pinout & Package
Package: 80-pin LQFP (80P6Q-A, 0.5 mm pitch), surface-mount, lead-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS / AVSS | Power supply inputs | VCC (4.0–5.5 V for Flash operation); VSS (digital ground); AVSS (analog ground, isolated for noise-sensitive A/D/D-A) |
| XIN / XOUT | Crystal oscillator interface | Connect external quartz crystal or ceramic resonator (1–10 MHz) for main clock generation |
| P00–P07 / P10–P17 / P20–P27 / P30–P37 / P40–P47 / P50–P57 / P60–P67 / P70–P77 / P80–P87 | Configurable I/O ports | 56 total CMOS I/O pins; individually programmable direction; P24–P27 support high-current LED drive in single-chip mode |
| P60–P67 / P00 / P01–P07 / P10–P17 | Analog input channels | 8-channel 10-bit A/D inputs (AN0–AN7); P00 also serves as reference input (P3REF) |
| P56 / P57 | D/A and PWM outputs | DA1/PWM01 and DA2/PWM11 - dual-function pins supporting analog output or 14-bit PWM generation |
| P76 / P77 | I²C interface | SDA and SCL pins supporting multi-master I²C bus (open-drain, SMBus-compatible levels) |
| RESET | Active-low reset input | Asynchronous reset assertion; internal pull-down; requires external pull-up for reliable deassertion |
Key Features
| Feature | Design Value |
|---|---|
| Flash memory programmability | Software-controlled byte-level programming and block/batch erasing (100-cycle endurance), enabling field firmware updates without socketing |
| Dual serial I/O flexibility | Serial I/O1 supports UART or clock-synchronized mode; Serial I/O2 is clock-synchronized only - allows mixed protocol use in sensor/actuator interfaces |
| Analog subsystem integration | Dedicated AVSS and VREF pins, 8-channel comparator circuit, and simultaneous A/D + D/A operation reduce external component count in closed-loop control designs |
| Low-power operation modes | 60 µW consumption at 32 kHz (3 V) enables battery-powered applications with extended runtime and thermal management headroom |
| Industrial-grade timing | Built-in watchdog timer (16-bit), key-on wake-up capability, and three-speed clock modes support robust real-time control in variable-load environments |
Applications
| Home Appliance Control | Consumer Audio System |
|---|---|
Use Scenario: Microcontroller in washing machine main board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Central controller executing real-time PID loops using A/D inputs (temperature, pressure) and PWM outputs (motor phase control). Use Value: Integrated 10-bit A/D and 14-bit PWM eliminate external converters, reducing BOM cost and PCB area while maintaining ±0.1% motor speed regulation accuracy. | Use Scenario: Embedded controller in portable Bluetooth speaker handling volume adjustment, battery monitoring, and LED status feedback. IC Role / Device Role / Timing Role: System manager interfacing with audio codec via I²C, reading battery voltage via A/D, and driving status LEDs via PWM-dimmed GPIO. Use Value: On-chip 8-bit D-A converters generate smooth analog bias voltages for audio amplifiers, avoiding external DACs and associated filtering components. |
| Smart Thermostat Interface | Industrial Sensor Hub |
Use Scenario: Temperature/humidity controller in HVAC system with local display and relay actuation. IC Role / Device Role / Timing Role: Analog front-end processor acquiring sensor data (NTC, capacitive humidity), performing linearization, and driving relays via port-controlled outputs. Use Value: Eight comparator channels enable direct threshold detection on multiple sensors without CPU polling, reducing interrupt latency and firmware overhead. | Use Scenario: Multi-sensor aggregator in factory automation node collecting vibration, current, and ambient light data. IC Role / Device Role / Timing Role: Data concentrator with dual serial I/O: one channel for Modbus RTU (UART), second for SPI-like synchronous sensor reads (SIN2/SOUT2/SCLK2). Use Value: Simultaneous UART and clock-synchronized serial I/O allows concurrent communication with master PLC and daisy-chained analog sensors - no external bridge IC required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#30 | RL78/G13 core, 32 MHz max, 128 KB Flash, 12 KB RAM, integrated debug interface | Higher performance, larger memory, and production-ready debug support vs. legacy 740-family architecture | Select for new designs requiring long-term availability, toolchain modernization, and enhanced peripheral set |
| M38869MFAHP#UU | Mask ROM version (61,440-byte ROM), same 80P6Q-A package, identical pinout and peripheral register map | No field reprogrammability; fixed firmware; lower unit cost for high-volume, unchanging functionality | Select when firmware is finalized and volume production justifies mask ROM NRE savings over Flash flexibility |
Compared with R5F100LEAFB#30 and M38869MFAHP#UU, the M38869FFAHP#UU uniquely balances Flash-based field update capability with mature 740-family tooling and industrial temperature support - making it optimal for cost-sensitive, mid-lifecycle upgrades of existing 3886-based platforms.
Availability
M38869FFAHP#UU is available at Aetrix Electronics and suitable for home appliance control, consumer audio systems, smart thermostat interfaces, and industrial sensor hubs requiring stable component supply across multi-year production cycles.
Supply support for M38869FFAHP#UU 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 IoT markets.
The 3886 Group microcontrollers were developed for cost-effective, analog-intensive embedded control in consumer and industrial equipment - emphasizing integrated A/D, D/A, PWM, and serial interfaces to minimize external component count.
FAQ
What is the maximum operating frequency supported by the M38869FFAHP#UU?
The M38869FFAHP#UU supports a maximum oscillation frequency of 10 MHz in high-speed mode, delivering a minimum instruction execution time of 0.4 µs. This frequency is achieved using an external quartz crystal or ceramic resonator connected between XIN and XOUT pins. Operation above 10 MHz is not supported per the device's electrical specifications and may cause timing violations or instability.
Does the M38869FFAHP#UU support in-system programming (ISP)?
Yes, the M38869FFAHP#UU supports in-system programming via its on-chip Flash memory. Programming is performed using VPP = 11.7–12.6 V applied to the VPP pin, with software-controlled byte-level writes and block/batch erases. No external programmer socket is required, enabling firmware updates directly on the target board - a key advantage over mask ROM or EPROM variants like M38869MFAHP#UU.
What are the power supply requirements for Flash programming on the M38869FFAHP#UU?
Flash programming on the M38869FFAHP#UU requires VCC = 5 V ±10% and VPP = 11.7–12.6 V. The device must be operated within the normal temperature range during programming - not the extended industrial range. These conditions ensure reliable oxide stress management and charge injection into the Flash memory cells, preserving the rated 100-cycle endurance specification.
Can the M38869FFAHP#UU operate from a 3.3 V supply?
No, the M38869FFAHP#UU cannot operate reliably from a 3.3 V supply. Its specified operating voltage range is 4.0–5.5 V for Flash memory operation and high-speed mode. While some 3886-series variants support 2.7 V, the Flash-based M38869FFAHP#UU explicitly requires ≥4.0 V to guarantee correct Flash read/write timing, internal regulator stability, and I/O voltage margins - using 3.3 V risks program corruption or functional failure.
Is the M38869FFAHP#UU pin-compatible with other members of the 3886 Group?
Yes, the M38869FFAHP#UU is pin-compatible with other 80P6Q-A packaged 3886 Group members including M38869MFAHP#UU and M38869MCAHP#UU. All share identical pin numbering, function allocation, and electrical characteristics per pin - verified in Figures 1, 3, and Table 1–2 of the official documentation. This enables drop-in replacement for firmware-upgrade scenarios without PCB revision.
M38869FFAHP#UU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- 740/38000
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 740
- Core Size:
- 8-Bit
- Speed:
- 10MHz
- Connectivity:
- I2C, SIO, UART/USART
- Peripherals:
- PWM, WDT
- Number of I/O:
- 64
- Program Memory Size:
- 60KB (60K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 4V ~ 5.5V
- Data Converters:
- A/D 8x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
M38869FFAHP#UU FAQ
1.How can I place an order for M38869FFAHP#UU through Aetrix?
Please submit a Request for Quotation (RFQ) for M38869FFAHP#UU 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 M38869FFAHP#UU reliable?
The price and inventory of M38869FFAHP#UU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38869FFAHP#UU is usually 5 days.
3.What payment methods are accepted for M38869FFAHP#UU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38869FFAHP#UU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M38869FFAHP#UU?
M38869FFAHP#UU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38869FFAHP#UU 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 M38869FFAHP#UU?
For technical support, including M38869FFAHP#UU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38869FFAHP#UU requirements.
6.How does Aetrix verify that M38869FFAHP#UU is sourced from the original manufacturer or authorized distributors?
All M38869FFAHP#UU 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 M38869FFAHP#UU meets industry standards.
7.What is the process for return or replacement of M38869FFAHP#UU?
All M38869FFAHP#UU units undergo pre-shipment inspection (PSI). If there is an issue with M38869FFAHP#UU, 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 M38869FFAHP#UU part is unused and in its original packaging.
Return procedure for M38869FFAHP#UU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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