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Renesas R5F10377DNA#U0
- Part No.:
- R5F10377DNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F10377DNA#U0.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,606
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Product details
Overview
R5F10377DNA#U0 from Renesas Electronics is a 24-pin HWQFN-packaged RL78/G12 16-bit MCU designed for ultra-low-power industrial control applications. It operates from 1.8 V to 5.5 V, delivers 31 DMIPS at 24 MHz, integrates 4 KB code flash and 256 B RAM, and supports STOP/HALT/SNOOZE low-power modes for battery-powered sensor nodes and smart actuators.
For engineers reviewing the R5F10377DNA#U0 datasheet, R5F10377DNA#U0 pinout, R5F10377DNA#U0 application, or R5F10377DNA#U0 equivalent, key selection criteria include its 24-pin HWQFN (4 × 4 mm, 0.5-mm pitch) footprint, absence of data flash memory, single UART channel, and ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C.
Technical Context
The R5F10377DNA#U0 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 uses a dedicated low-speed on-chip oscillator (15 kHz) for watchdog timer operation independent of main clock source.
Its peripheral set includes one 16-bit timer (TAU0) with four channels, an 8-channel 10-bit A/D converter with internal 1.45 V reference, simplified SPI (CSI) on one channel, and no DMA or safety functions (CRC, RAM/SFR guard) - distinguishing it from R5F102-series counterparts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 24 MHz (via high-speed on-chip oscillator), 31 DMIPS performance |
| Memory | 4 KB code flash (1 KB block size), 256 B RAM - no data flash memory |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V peripherals |
| Operating Temperature | –40°C to +85°C (Industrial 'D' grade), qualified for embedded control in harsh environments |
| Oscillator Accuracy | ±5.0% over –40°C to +85°C - requires external crystal for timing-critical UART or synchronous comms |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference, temperature sensor included |
Pinout & Package
Package: HWQFN-24 (4 × 4 mm, 0.5-mm pitch), exposed die pad (to be connected to VSS), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/KR1/SI01/RESET | Reset Input / Serial Data In | Active-low reset with internal pull-up; dual-function for debug programming via SI01 |
| P137/INTP0 | External Interrupt Input | Dedicated interrupt pin for fast edge-triggered wake-up from STOP mode |
| P121/KR3/X1 | Crystal Oscillator Input | Connects to external crystal (1–20 MHz) for precise system clock generation |
| P122/KR2/X2/EXCLK | Crystal Oscillator Output / External Clock In | Drives crystal; accepts external clock up to 20 MHz if X1 used as input only |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Multi-function I/O | Configurable as UART0 receive, I²C data, or debug serial input - requires PIOR setting |
| P12/ANI18/SO00/TxD0/TOOLTxD | Multi-function I/O | Configurable as UART0 transmit, I²C clock, or debug serial output - shares TxD0 path |
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Multi-function I/O | Supports programmable clock/buzzer output or CSI/I²C master clock - no slave SCL capability |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Analog Input / Serial Output / Timer I/O | 8-channel A/D input; also serves as CSI data out, timer capture/compare, or interrupt source |
| VDD / VSS | Power Supply / Ground | Dual power pins support clean analog/digital separation; exposed pad must connect to VSS |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables multi-year battery life in sensor endpoints |
| SNOOZE mode operation | Permits background A/D conversion and UART reception while CPU sleeps - reduces average system power |
| On-chip voltage detector (LVD) | 12 selectable threshold levels (1.88–4.06 V) for brown-out detection and graceful shutdown |
| Hardware multiplier/divider | 16×16→32-bit signed/unsigned multiply supports real-time motor control math without software overhead |
| Programmable clock/buzzer output | PCLBUZ0 generates precise 2.44 kHz–10 MHz tones or clocks - eliminates external oscillator for simple UI feedback |
Applications
| Smart Thermostat Control | Industrial Sensor Node |
|---|---|
Use Scenario: Local temperature/humidity monitoring with wireless reporting and display backlight control. IC Role / Device Role / Timing Role: Main controller executing PID loop, managing I²C sensors, driving segment LCD, and entering STOP mode between readings. Use Value: 63 μA/MHz active current and SNOOZE-mode A/D enable <10 μA average system current during 30-second sampling intervals. |
Use Scenario: DIN-rail mounted current/voltage monitor with RS-485 communication and fault logging. IC Role / Device Role / Timing Role: Real-time analog acquisition (8-channel 10-bit A/D), UART-to-RS485 protocol translation, and non-volatile event timestamping. Use Value: Internal 1.45 V reference ensures stable A/D accuracy across 1.8–5.5 V supply range; ±5.0% oscillator suffices for UART baud rate tolerance. |
| Appliance Motor Driver Interface | Low-Cost PLC I/O Module |
Use Scenario: Washing machine drum control using triac firing and water level sensing. IC Role / Device Role / Timing Role: Generates zero-crossing synchronized triac gate pulses via TO00/TO01 outputs and reads pressure switch inputs. Use Value: Four 16-bit TAU0 timer channels provide independent PWM and capture for precise phase-angle control without external timers. |
Use Scenario: Modular digital input card accepting 24 V DC field signals with LED status indication. IC Role / Device Role / Timing Role: Isolated input conditioning, debounce logic, status LED timing, and Modbus RTU framing over UART. Use Value: N-ch open-drain I/O (6 V tolerant) directly interfaces 24 V inputs; on-chip key interrupt handles 6+ input edges with no CPU polling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10277DNA#U0 | Includes 2 KB data flash, CRC engine, RAM/SFR guard, ±1.0% oscillator accuracy | Required for firmware-over-the-air updates or secure boot verification | Select when field firmware updates or functional safety features (IEC 61508 SIL-2) are mandated |
| R5F10378DNA#U0 | 8 KB code flash, same 256 B RAM, identical peripheral set and package | Needed for larger control algorithms or bootloader + application partitioning | Choose when application code exceeds 4 KB but data flash is unnecessary and cost sensitivity remains high |
Compared with R5F10277DNA#U0, the R5F10377DNA#U0 omits data flash and safety features to reduce cost and power, making it optimal for fixed-function industrial controllers; versus R5F10378DNA#U0, it trades flash capacity for lower unit price in resource-constrained designs.
Availability
R5F10377DNA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, appliance control modules, and smart meter interfaces requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant HWQFN packaging.
Supply support for R5F10377DNA#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line targets cost-sensitive, ultra-low-power general-purpose embedded control - emphasizing energy efficiency, integrated analog, and rapid development with scalable memory options.
FAQ
What is the maximum operating frequency and performance rating of the R5F10377DNA#U0?
The R5F10377DNA#U0 achieves a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS of processing performance. Its RL78 CPU core executes instructions in as little as 0.04167 µs at full speed, enabling responsive real-time control in compact industrial applications.
Does the R5F10377DNA#U0 include data flash memory?
No, the R5F10377DNA#U0 does not include data flash memory. Unlike R5F102-series variants, this part is configured with 4 KB of code flash and 256 B of RAM only. Data storage must be implemented externally or via code flash wear-leveling techniques if required.
What are the low-power modes supported by the R5F10377DNA#U0?
The R5F10377DNA#U0 supports HALT, STOP, and SNOOZE low-power modes. STOP mode reduces current to sub-µA levels while retaining RAM and register contents; SNOOZE allows background A/D conversion and UART reception without waking the CPU - critical for battery longevity.
Which serial interfaces are available on the R5F10377DNA#U0?
The R5F10377DNA#U0 provides one UART channel (UART0), one simplified SPI (CSI) channel, and no simplified I²C interface. It includes one full I²C bus (IICA0) supporting standard-mode (100 kbps) communication, but lacks the second I²C channel found in R5F1027x variants.
What is the oscillator accuracy specification for the R5F10377DNA#U0?
The R5F10377DNA#U0 high-speed on-chip oscillator has a frequency accuracy of ±5.0% over the industrial temperature range (–40°C to +85°C). For applications requiring tighter timing - such as precise UART baud rates or synchronous communications - an external crystal (X1/X2) is recommended.
R5F10377DNA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G12
- Packaging:
- Tray
- 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:
R5F10377DNA#U0 FAQ
1.How can I place an order for R5F10377DNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10377DNA#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 R5F10377DNA#U0 reliable?
The price and inventory of R5F10377DNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10377DNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F10377DNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10377DNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10377DNA#U0?
R5F10377DNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10377DNA#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 R5F10377DNA#U0?
For technical support, including R5F10377DNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10377DNA#U0 requirements.
6.How does Aetrix verify that R5F10377DNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F10377DNA#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 R5F10377DNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F10377DNA#U0?
All R5F10377DNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10377DNA#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 R5F10377DNA#U0 part is unused and in its original packaging.
Return procedure for R5F10377DNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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