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Renesas R5F10377ANA#25
- Part No.:
- R5F10377ANA#25
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F10377ANA#25.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,320
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Product details
Overview
R5F10377ANA#25 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 features 2 KB code flash, 256 B RAM, 10-bit 8-channel ADC, single UART, and a 24 MHz high-speed on-chip oscillator with ±5.0% accuracy - enabling battery-powered sensor nodes and smart home peripherals.
For engineers reviewing the R5F10377ANA#25 datasheet, R5F10377ANA#25 pinout, R5F10377ANA#25 application, or R5F10377ANA#25 equivalent, key selection criteria include its absence of data flash memory, lack of DMA and safety functions (CRC/SFR guard), limited serial interface count (1 UART, 1 CSI, no I²C), and 24-pin HWQFN thermal performance in space-constrained designs.
Technical Context
The R5F10377ANA#25 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction execution time (0.04167 µs at 24 MHz). It operates across 1.8–5.5 V supply and supports HALT/STOP/SNOOZE low-power modes for sub-µA standby current management.
Its peripheral set excludes data flash, DMA, CRC, and simplified I²C - distinguishing it from R5F102x variants - while retaining TAU0 4-channel 16-bit timer, 12-bit interval timer, watchdog timer, and programmable clock/buzzer output (PCLBUZ0) for timing-critical control loops.
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. |
| Max Operating Frequency | 24 MHz via high-speed on-chip oscillator; ±5.0% accuracy over –40°C to +85°C ensures stable timing without external crystal. |
| Memory Configuration | 2 KB code flash + 256 B RAM; sufficient for compact firmware in cost-sensitive appliances and IoT edge sensors. |
| Analog Peripherals | 10-bit 8-channel ADC with internal 1.45 V reference and temperature sensor; supports direct analog monitoring without external components. |
| Digital I/O | 22 total I/O pins including 5 N-ch open-drain (VDD-tolerant) and key interrupt support; enables mixed-voltage interfacing (1.8/2.5/3.3 V logic). |
| Serial Interfaces | 1 UART channel + 1 simplified SPI (CSI); adequate for basic host communication and sensor bridging, but no I²C or multi-channel UART. |
| Power Management | True low-power platform: 63 µA/MHz active current; HALT/STOP/SNOOZE modes reduce system-level power consumption in duty-cycled applications. |
Pinout & Package
Package: HWQFN-24 (4 × 4 mm, 0.5 mm pitch) with exposed die pad recommended to be connected to VSS for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/KR1/SI01/RESET | Reset input / Serial data input | Active-low reset with internal pull-up; dual-function pin allows shared PCB routing for debug and production reset paths. |
| P121/KR3/X1 / (TI03)/(INTP3) | Crystal input / Timer input / Interrupt | Primary oscillator input for external crystal; also serves as flexible timer/interrupt source when not used for clocking. |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Crystal output / External clock / Timer input | Completes crystal oscillator circuit; accepts external clock up to 20 MHz or provides secondary timer/interrupt capability. |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | UART receive / SPI input / Debug RX | Shared function pin supports firmware update via UART, sensor data acquisition via SPI, and on-chip debug communication. |
| P12/ANI18/SO00/TxD0/TOOLTxD | UART transmit / SPI output / Debug TX | Enables full-duplex UART or SPI operation; TOOLTxD allows seamless integration with Renesas E2 emulator tools. |
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Buzzer clock / SPI clock / I²C clock | Programmable clock output drives piezo buzzers; SCK00 supports synchronous serial communication; SCL00 is unused (no I²C). |
| P20/ANI0/AVREFP | Analog reference positive / ADC input | Provides stable AVREFP for 10-bit ADC; doubles as first analog input channel for voltage sensing or thermistor interfaces. |
| VDD / VSS | Power supply / Ground | Single 1.8–5.5 V supply simplifies power design; VSS connection to exposed pad improves thermal dissipation and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 µA/MHz active current and multiple low-power modes enable >1-year battery life in coin-cell-powered devices. |
| No data flash memory | Eliminates 2 KB data flash area, reducing silicon cost and simplifying firmware update architecture for write-once or EEPROM-backed systems. |
| Consumer-grade temperature range | Rated for –40°C to +85°C ambient operation, suitable for indoor consumer electronics without industrial-grade thermal derating. |
| On-chip debug support | Integrated debug interface enables in-circuit programming and real-time trace without external JTAG adapters during development. |
| Configurable I/O drive strength | Supports TTL input buffers, on-chip pull-up resistors, and N-ch open-drain outputs - simplifying level-shifting and bus arbitration. |
Applications
| Smart Appliance Control | Wireless Sensor Node |
|---|---|
Use Scenario: Embedded controller in battery-operated thermostats, humidifiers, or air purifiers managing fan speed, display, and environmental sensing. IC Role / Device Role / Timing Role: Main system controller executing closed-loop PID algorithms, driving buzzer alerts via PCLBUZ0, and sampling temperature/humidity via 8-channel ADC. Use Value: 63 µA/MHz active current and STOP mode extend CR2032 battery life beyond 2 years; UART enables Bluetooth/Wi-Fi module communication. |
Use Scenario: Edge node collecting ambient light, motion, and occupancy data for smart lighting or HVAC optimization. IC Role / Device Role / Timing Role: Low-power sensor aggregator using SNOOZE mode between ADC conversions; UART transmits data to gateway; TI00/TO00 triggers wake-up on PIR interrupt. Use Value: Single 1.8–5.5 V supply eliminates LDO need; 22 GPIOs support multiple sensor interfaces; 10-bit ADC resolves <1% RH changes in humidity sensing. |
| Home Automation Remote | Industrial Panel Indicator |
Use Scenario: IR or RF remote control for TVs, projectors, or audio systems with button matrix scanning and LED feedback. IC Role / Device Role / Timing Role: Key interrupt handler (KR0–KR9) scanning 10-button matrix; PCLBUZ0 generates audible click feedback; UART relays commands to main MCU. Use Value: On-chip key interrupt reduces polling overhead; 24 MHz oscillator ensures responsive UI timing; N-ch open-drain I/O directly drives LEDs without external drivers. |
Use Scenario: Status indicator on PLC I/O modules or motor drives showing fault codes, run status, or communication health via multi-color LEDs. IC Role / Device Role / Timing Role: Dedicated indicator controller receiving Modbus RTU commands via UART; PWM-capable TAU0 channels drive RGB LED brightness. Use Value: 4-channel 16-bit timer supports independent LED dimming; 1.8 V minimum supply allows direct connection to 2.5 V logic rails; 22 GPIOs manage 8+ LED segments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10277ANA#25 | Includes 2 KB data flash, DMA, CRC, and safety guards; ±1.0% oscillator accuracy; same pinout and package. | Required for field-upgradable firmware or secure boot; supports background data logging without halting CPU. | Select when data retention, functional safety, or higher oscillator precision is mandatory - adds ~$0.15 cost. |
| R5F10378ANA#25 | Same R5F103 family but with 4 KB code flash and 512 B RAM; identical peripheral set and low-power profile. | Suitable for larger firmware images (e.g., BLE stack integration or enhanced UI rendering) without changing PCB layout. | Choose for future-proofing firmware growth while maintaining identical power/performance trade-offs. |
Compared with R5F10277ANA#25, the R5F10377ANA#25 trades data flash and safety features for lower cost and reduced complexity; versus R5F10378ANA#25, it offers tighter memory constraints ideal for minimal-footprint firmware where flash headroom is not required.
Availability
R5F10377ANA#25 is available at Aetrix Electronics and suitable for smart appliance control, wireless sensor nodes, home automation remotes, and industrial panel indicators requiring stable component supply and long-term manufacturing continuity.
Supply support for R5F10377ANA#25 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated consumer and industrial control applications - emphasizing energy efficiency, integrated peripherals, and rapid time-to-market.
FAQ
What is the maximum operating frequency of the R5F10377ANA#25?
The R5F10377ANA#25 supports a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator. This frequency is achievable across the full 1.8–5.5 V supply range and –40°C to +85°C ambient temperature, with ±5.0% accuracy. External crystal operation is also supported up to 20 MHz for higher precision timing requirements in the R5F10377ANA#25.
Does the R5F10377ANA#25 include data flash memory?
No, the R5F10377ANA#25 does not include data flash memory. As confirmed in the RL78/G12 datasheet Section 1.3.1, data flash (2 KB) is present only in R5F102x products; R5F103x variants like the R5F10377ANA#25 omit this feature to reduce cost and silicon area. Firmware must use external EEPROM or FRAM if non-volatile parameter storage is required.
What package type and pin count does the R5F10377ANA#25 use?
The R5F10377ANA#25 uses a 24-pin HWQFN package (4 × 4 mm, 0.5 mm pitch) with an exposed die pad. This package is documented in Table 1-1 of the R01DS0193EJ0250 datasheet under "24-pin plastic HWQFN" and is compatible with standard reflow soldering processes. The #25 suffix indicates tray packaging per Renesas ordering conventions.
Which serial interfaces are supported by the R5F10377ANA#25?
The R5F10377ANA#25 supports one UART channel (RxD0/TxD0), one simplified SPI (CSI00), and no simplified I²C or standard I²C interfaces. This is explicitly defined in Section 1.7 Outline of Functions and distinguishes it from R5F102x variants, which include two CSI and two simplified I²C channels. UART and CSI share pins with debug functions (TOOLRxD/TOOLTxD, SI00/SO00).
What is the ADC resolution and channel count on the R5F10377ANA#25?
The R5F10377ANA#25 integrates an 8-channel, 10-bit successive-approximation ADC with internal 1.45 V reference voltage and integrated temperature sensor. Channels include ANI0–ANI3 and ANI16–ANI19, as specified in Section 1.7 and confirmed in the 24-pin pin configuration diagram (Page 8). Input voltage range is 0 V to VDD, supporting direct sensing of 1.8–5.5 V signals.
R5F10377ANA#25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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#25 FAQ
1.How can I place an order for R5F10377ANA#25 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10377ANA#25 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#25 reliable?
The price and inventory of R5F10377ANA#25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10377ANA#25 is usually 5 days.
3.What payment methods are accepted for R5F10377ANA#25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10377ANA#25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10377ANA#25?
R5F10377ANA#25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10377ANA#25 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#25?
For technical support, including R5F10377ANA#25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10377ANA#25 requirements.
6.How does Aetrix verify that R5F10377ANA#25 is sourced from the original manufacturer or authorized distributors?
All R5F10377ANA#25 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#25 meets industry standards.
7.What is the process for return or replacement of R5F10377ANA#25?
All R5F10377ANA#25 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10377ANA#25, 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#25 part is unused and in its original packaging.
Return procedure for R5F10377ANA#25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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