My Inquiry
My Account
Renesas R5F10377ANA#W5
- Part No.:
- R5F10377ANA#W5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F10377ANA#W5.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,501
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10377ANA#W5 from Renesas Electronics is a 24-pin 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 A/D converter with 11 input channels, 4-channel 16-bit timer, and single UART interface - optimized for battery-powered sensor nodes and smart home peripherals.
For engineers reviewing the R5F10377ANA#W5 datasheet, R5F10377ANA#W5 pinout, R5F10377ANA#W5 application, or R5F10377ANA#W5 equivalent, key selection criteria include its HWQFN-24 package, absence of data flash memory, reduced peripheral count versus R5F1027x variants, and ±5.0% high-speed on-chip oscillator accuracy over full temperature range.
Technical Context
The R5F10377ANA#W5 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting minimum instruction execution time of 0.04167 µs at 24 MHz (high-speed on-chip oscillator) and 1 MB address space. It operates across 1.8–5.5 V supply and supports HALT/STOP/SNOOZE low-power modes.
Unlike R5F1027x counterparts, this variant omits data flash memory, DMA controller, CRC unit, RAM/SFR guard, and simplified I²C interface. Its serial interface is limited to one UART channel and one simplified SPI (CSI) channel, with no I²C bus support - reflecting its cost-optimized, minimal-peripheral positioning within the RL78/G12 family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with 31 DMIPS @ 24 MHz |
| Code Flash Memory | 2 KB; sufficient for compact firmware in sensor hubs and simple appliance controllers |
| RAM | 256 B; constrains stack depth and local variable usage in deeply nested functions |
| A/D Converter | 10-bit resolution, 11 input channels; supports multi-sensor analog monitoring without external ADC |
| Operating Voltage | 1.8 V to 5.5 V; enables direct interface with Li-ion, coin-cell, or 3.3/5 V system rails |
| Temperature Range | –40°C to +85°C (A-grade); qualified for indoor consumer electronics, not extended industrial use |
| Oscillator Accuracy | ±5.0% @ –40°C to +85°C; requires software calibration or external crystal for timing-critical protocols |
Pinout & Package
Package: HWQFN-24 (4 × 4 mm, 0.5-mm pitch), exposed die pad (to be connected to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P03 | Port 0 I/O | N-ch open-drain capable; supports 1.8/2.5/3.3 V level-shifting interfaces |
| P10–P14 | Port 1 I/O with analog/serial functions | Includes SCK00/SI00/SO00 (CSI), RxD0/TxD0 (UART), ANI16–ANI20 inputs |
| P20–P23 | Analog input port | ANI0–ANI3 with AVREFP/AVREFM; supports ratiometric sensor measurements |
| P40–P42 | Port 4 I/O | Includes ANI21/ANI22, TI02/TO02, TI03/TO03 - enables dual timer capture/compare |
| P60/P61 | I²C-compatible pins | SCLA0/SDAA0 with 6 V tolerance; usable as GPIO or I²C slave (no master mode) |
| P121/P122 | Crystal oscillator inputs | X1/X2; supports 1–20 MHz external crystal for precise clocking |
| P125 | Reset input | Active-low RESET with internal pull-up; accepts 1.8–5.5 V logic levels |
| VDD/VSS | Power supply | Single 1.8–5.5 V rail; exposed pad must be soldered to ground plane for thermal/EMI stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables >1-year battery life in coin-cell–powered devices |
| On-chip high-speed oscillator | Configurable 1–24 MHz output with ±5.0% accuracy eliminates need for external crystal in non-timing-critical apps |
| Hardware watchdog timer | Dedicated low-speed on-chip oscillator ensures reliable reset during brown-out or code lockup |
| On-chip voltage detector | 12-level LVD with interrupt/reset options enables graceful shutdown before brown-out |
| Programmable clock/buzzer output | PCLBUZ0 generates 2.44 kHz–10 MHz square waves for audible alerts or clock distribution |
Applications
| Smart Thermostat Sensor Node | Wireless Doorbell Transmitter |
|---|---|
Use Scenario: Battery-powered indoor temperature/humidity sensor transmitting data via sub-GHz RF link every 30 seconds. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, ADC conversion, low-power sleep management, and RF packet framing. Use Value: 63 μA/MHz active current and STOP mode reduce average current to <2 μA, extending CR2032 battery life beyond 2 years. | Use Scenario: Push-button activated transmitter sending encrypted wake-up signal to receiver using ASK/OOK modulation. IC Role / Device Role / Timing Role: Wake-on-interrupt controller managing button debouncing, encryption engine, and RF carrier timing. Use Value: Single UART interface handles debug logging; 10-bit ADC monitors battery voltage for low-battery alert without external components. |
| LED Night Light Controller | USB-C Power Monitor Module |
Use Scenario: Ambient-light adaptive LED night light with capacitive touch dimming and auto-off timer. IC Role / Device Role / Timing Role: Analog front-end processor for photodiode input, PWM dimming generator, and capacitive sense engine. Use Value: 11-channel ADC supports simultaneous ambient light, touch electrode, and temperature sensing; PCLBUZ0 drives piezo buzzer for feedback. | Use Scenario: Compact USB-C inline power monitor measuring VBUS voltage/current via shunt resistor and ADC. IC Role / Device Role / Timing Role: Precision analog acquisition unit interfacing with external op-amp and shunt, reporting via UART to host MCU. Use Value: 10-bit ADC with internal reference (1.45 V) enables accurate current measurement across 0–5 V VBUS range without external reference IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10277ANA#W5 | Includes 2 KB data flash, DMA, CRC, RAM/SFR guard, and ±1.0% oscillator accuracy | Required for field firmware updates, safety-critical checksums, or higher-precision timing | Select when self-programming or functional safety features are mandatory |
| R5F10378ANA#W5 | 4 KB code flash, same peripherals and package; identical oscillator and temperature specs | Needed for larger firmware images with bootloader, communication stacks, or enhanced feature sets | Choose when 2 KB flash is insufficient but peripheral set and power profile must remain unchanged |
Compared with R5F10277ANA#W5, the R5F10377ANA#W5 trades data flash and precision timing for lower cost and smaller footprint; compared with R5F10378ANA#W5, it offers identical functionality at reduced memory capacity - making it optimal for cost-sensitive, memory-constrained designs where firmware size is tightly controlled.
Availability
R5F10377ANA#W5 is available at Aetrix Electronics and suitable for smart home sensors, battery-powered peripherals, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F10377ANA#W5 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated consumer and industrial control applications - emphasizing energy efficiency, integrated analog, and simplified development.
FAQ
What is the maximum operating frequency of the R5F10377ANA#W5?
The R5F10377ANA#W5 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. When driven by an external crystal (X1), the maximum supported frequency is 20 MHz. Instruction execution time is 0.04167 µs at 24 MHz, delivering 31 DMIPS performance. The device also supports lower-frequency operation down to 1 MHz for ultra-low-power modes.
Does the R5F10377ANA#W5 include data flash memory?
No, the R5F10377ANA#W5 does not include data flash memory. As confirmed in the RL78/G12 datasheet Section 1.3.1, only R5F102x products integrate 2 KB of data flash; all R5F103x variants-including R5F10377ANA#W5-omit this feature. Firmware updates must be implemented via code flash reprogramming or external storage.
What package type and pin count does the R5F10377ANA#W5 use?
The R5F10377ANA#W5 uses a 24-pin HWQFN package (4 × 4 mm, 0.5-mm pitch) with an exposed die pad. The #W5 suffix explicitly denotes embossed tape packaging for automated assembly. Pin functions include 18 general-purpose I/O lines, 11 analog inputs, UART, CSI, timers, and oscillator connections - fully detailed in Figure 1-8 of the R01DS0193EJ0250 datasheet.
Can the R5F10377ANA#W5 operate from a 1.8 V supply?
Yes, the R5F10377ANA#W5 is fully specified to operate from 1.8 V to 5.5 V, enabling direct integration with low-voltage batteries and energy-harvesting sources. At 1.8 V, the maximum allowed system clock is 8 MHz in LS (low-speed main) mode, while HS (high-speed main) mode supports up to 16 MHz. All peripherals - including ADC, timers, and UART - remain functional across this full voltage range.
How many UART interfaces does the R5F10377ANA#W5 support?
The R5F10377ANA#W5 supports exactly one UART interface (UART0), accessible on pins P11 (RxD0) and P12 (TxD0). Unlike higher-pin-count or R5F102x variants, it does not include additional UART channels or simplified I²C - making it suitable for point-to-point communication rather than multi-device bus topologies.
R5F10377ANA#W5 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:
R5F10377ANA#W5 FAQ
1.How can I place an order for R5F10377ANA#W5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10377ANA#W5 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#W5 reliable?
The price and inventory of R5F10377ANA#W5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10377ANA#W5 is usually 5 days.
3.What payment methods are accepted for R5F10377ANA#W5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10377ANA#W5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10377ANA#W5?
R5F10377ANA#W5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10377ANA#W5 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#W5?
For technical support, including R5F10377ANA#W5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10377ANA#W5 requirements.
6.How does Aetrix verify that R5F10377ANA#W5 is sourced from the original manufacturer or authorized distributors?
All R5F10377ANA#W5 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#W5 meets industry standards.
7.What is the process for return or replacement of R5F10377ANA#W5?
All R5F10377ANA#W5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10377ANA#W5, 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#W5 part is unused and in its original packaging.
Return procedure for R5F10377ANA#W5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10377ANA#W5 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
