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Renesas R5F10377ANA#W0
- Part No.:
- R5F10377ANA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F10377ANA#W0.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,369
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Product details
Overview
R5F10377ANA#W0 from Renesas Electronics is a 24-pin HWQFN-packaged RL78/G12 16-bit microcontroller designed for ultra-low-power embedded control in consumer-grade applications (–40°C to +85°C). It integrates 4 KB code flash, 256 B RAM, 10-bit 8-channel ADC, 4-channel 16-bit timer, UART, and simplified SPI - enabling compact sensor nodes and battery-powered IoT endpoints.
For engineers reviewing the R5F10377ANA#W0 datasheet, R5F10377ANA#W0 pinout, R5F10377ANA#W0 application, or R5F10377ANA#W0 equivalent, this page delivers verified electrical specs, package dimensions, peripheral mapping, real-world use cases, and validated alternative parts - all aligned with Rev.2.50 of R01DS0193EJ0250.
Technical Context
The R5F10377ANA#W0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.04167 µs (@24 MHz on-chip oscillator) to 1 µs (@1 MHz), and operates across 1.8–5.5 V supply. Its clock system includes a high-speed on-chip oscillator (±5.0% accuracy at –40°C to +85°C) and supports external crystal input (1–20 MHz).
It features 22 I/O pins (including 2 × 6-V-tolerant N-ch open-drain outputs), programmable key interrupt, on-chip power-on-reset and voltage detector (12-level LVD), and hardware-based buzzer/clock output controller - all optimized for cost-sensitive, low-power control tasks without data flash or DMA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with minimal code footprint |
| Operating Voltage | 1.8 V to 5.5 V; supports direct interface with 1.8/2.5/3.3/5 V peripherals without level shifters |
| Code Flash / RAM | 4 KB flash / 256 B RAM; sufficient for firmware with basic communication stack and sensor processing |
| ADC Resolution / Channels | 10-bit / 8 channels; provides adequate precision for temperature, voltage, and analog sensor monitoring |
| Timer Resources | 4 × 16-bit TAU channels + 1 × 12-bit interval timer + 1 × watchdog; supports PWM generation, timing-critical interrupts, and fail-safe reset |
| Serial Interfaces | 1 × UART + 1 × simplified SPI (CSI); meets basic host-to-peripheral and sensor-to-MCU communication needs |
| Package / Pin Count | HWQFN-24 (4 mm × 4 mm, 0.5 mm pitch); enables high-density PCB layout with thermal pad for improved heat dissipation |
Pinout & Package
Package: HWQFN-24 (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P03 | Port 0 I/O | General-purpose CMOS I/O with key return capability; P00/P01 support UART1 alternate functions |
| P10–P14 | Port 1 I/O | Primary digital I/O bank; P10–P12 support SCK00/SI00/SO00 (CSI00); P11/P12 support RxD0/TxD0 (UART0) |
| P20–P23 | Analog Input / Reference | ANI0–ANI3 with AVREFP/AVREFM; enables single-supply ratiometric A/D conversion |
| P40–P42 | Port 4 I/O | P40 = TOOL0 debug I/O; P41/P42 support CSI01 (SCL01/SDA01) and timer I/O (TI02/TO02, TI03/TO03) |
| P60/P61 | I²C Interface | SCLA0/SDAA0 - dedicated 2-wire I²C bus pins with internal pull-up capability |
| P121/P122 | Crystal Oscillator | X1/X2 inputs for external 1–20 MHz crystal; supports precise timing when on-chip oscillator accuracy is insufficient |
| P125 | Reset Input | Active-low RESET pin with Schmitt trigger; accepts standard push-button or supervisor IC signals |
| VDD / VSS | Power / Ground | Single 1.8–5.5 V supply; VSS must connect to exposed die pad for thermal and noise performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 63 μA/MHz active current; HALT/STOP/SNOOZE modes reduce standby current to sub-μA levels |
| On-chip oscillator accuracy | ±5.0% over –40°C to +85°C; eliminates need for external crystal in non-critical timing applications |
| Hardware clock/buzzer output | Dedicated PCLBUZ0 pin generating 2.44 kHz–10 MHz square wave; replaces external oscillator for buzzer or clocking |
| Integrated voltage detection | 12-level LVD with interrupt/reset selection; enables brown-out protection and graceful shutdown |
| Peripheral I/O redirection | PIOR register allows dynamic remapping of UART/CSI/I²C functions to alternate pins; increases board layout flexibility |
Applications
| Smart Home Sensor Node | Industrial Panel Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to gateway MCU. IC Role / Device Role / Timing Role: Primary system controller executing sensor readout, calibration, and serial protocol framing. Use Value: 4 KB flash accommodates lightweight Modbus RTU or custom packet protocol; 10-bit ADC resolves ±0.5°C temperature drift. |
Use Scenario: Front-panel keypad and LED indicator controller in HVAC control unit. IC Role / Device Role / Timing Role: Dedicated key-scan and display driver MCU interfacing with main processor via UART. Use Value: Key interrupt and 22 GPIO enable 6×4 matrix scan; on-chip buzzer output drives audible feedback without external driver. |
| Portable Medical Monitor | White Goods Motor Control |
|
Use Scenario: Low-power pulse oximeter subsystem acquiring analog photodiode signals. IC Role / Device Role / Timing Role: Signal acquisition and preprocessing unit feeding digitized data to host MCU. Use Value: 8-channel 10-bit ADC samples dual-wavelength photodiodes simultaneously; 1.8 V operation extends coin-cell battery life. |
Use Scenario: Fan speed monitor and fault reporting module in refrigerator compressor system. IC Role / Device Role / Timing Role: Standalone status monitor capturing tachometer pulses and thermistor readings. Use Value: 4-channel 16-bit timer captures RPM with <1% error; 6-V-tolerant I/O interfaces directly with 5 V fan tach signal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10277ANA#W0 | Includes 2 KB data flash and DMA; ±1.0% on-chip oscillator accuracy; same pinout and code flash size | Required where background data logging or high-throughput memory transfers are needed | Select when firmware requires non-volatile parameter storage or burst data movement between peripherals and RAM |
| R5F10378ANA#W0 | 8 KB code flash, same RAM and peripherals; identical package and operating range | Suitable for applications needing larger firmware image (e.g., BLE stack integration or enhanced UI logic) | Choose when future firmware expansion or feature-rich bootloader is anticipated without changing PCB layout |
Compared with R5F10277ANA#W0, the R5F10377ANA#W0 trades data flash and tighter oscillator tolerance for lower cost and reduced complexity; versus R5F10378ANA#W0, it offers sufficient flash for basic control while minimizing die size and power consumption.
Availability
R5F10377ANA#W0 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial panel controllers, portable medical monitors, and white goods motor control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F10377ANA#W0 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G12 product line targets cost-sensitive, ultra-low-power general-purpose embedded control - emphasizing energy efficiency, integrated peripherals, and rapid time-to-market for consumer and industrial edge devices.
FAQ
What is the maximum operating frequency of the R5F10377ANA#W0?
The R5F10377ANA#W0 supports up to 24 MHz using its high-speed on-chip oscillator, or up to 20 MHz when driven by an external crystal (X1). At 24 MHz, minimum instruction execution time is 0.04167 µs. The device maintains full functionality across its 1.8–5.5 V supply range and –40°C to +85°C ambient temperature.
Does the R5F10377ANA#W0 include data flash memory?
No, the R5F10377ANA#W0 does not include data flash memory. As confirmed in Section 1.3.1 of the RL78/G12 datasheet (R01DS0193EJ0250), data flash is present only in R5F102x series parts. The R5F10377ANA#W0 provides 4 KB of code flash and 256 B of RAM, with no dedicated data flash area.
What package type and pin count does the R5F10377ANA#W0 use?
The R5F10377ANA#W0 uses a 24-pin HWQFN package (4 mm × 4 mm, 0.5 mm pitch) with an exposed die pad. This is explicitly defined in Figure 1-1 and Table 1-1 of the RL78/G12 datasheet, where "NA" in the part number denotes HWQFN and "7" indicates 24-pin configuration.
Can the R5F10377ANA#W0 operate from a 1.8 V supply?
Yes, the R5F10377ANA#W0 is fully specified to operate from 1.8 V to 5.5 V. Its ultra-low-power design enables functional operation at 1.8 V, including ADC conversion, UART communication, and timer operation - making it suitable for coin-cell or single Li-ion battery applications.
Which serial interfaces are supported by the R5F10377ANA#W0?
The R5F10377ANA#W0 supports one UART channel (RxD0/TxD0), one simplified SPI (CSI00), and one dedicated I²C interface (SCLA0/SDAA0). It does not include simplified I²C or additional UART/CSI channels - a key distinction from R5F102x variants per Section 1.3.3 of the datasheet.
R5F10377ANA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 18
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10377ANA#W0 FAQ
1.How can I place an order for R5F10377ANA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10377ANA#W0 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 R5F10377ANA#W0 reliable?
The price and inventory of R5F10377ANA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10377ANA#W0 is usually 5 days.
3.What payment methods are accepted for R5F10377ANA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10377ANA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10377ANA#W0?
R5F10377ANA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10377ANA#W0 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 R5F10377ANA#W0?
For technical support, including R5F10377ANA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10377ANA#W0 requirements.
6.How does Aetrix verify that R5F10377ANA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F10377ANA#W0 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 R5F10377ANA#W0 meets industry standards.
7.What is the process for return or replacement of R5F10377ANA#W0?
All R5F10377ANA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10377ANA#W0, 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 R5F10377ANA#W0 part is unused and in its original packaging.
Return procedure for R5F10377ANA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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