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Renesas R5F1177AGNA#U0
- Part No.:
- R5F1177AGNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1177AGNA#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,525
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Product details
Overview
R5F1177AGNA#U0 from Renesas is an RL78/I1D 24-pin HWQFN ultra-low-power 16-bit MCU with 8 KB flash, 2 KB data flash, 0.7 KB RAM, 6-channel 8/12-bit ADC, 2 comparators, and 4 operational amplifiers - designed for industrial sensor nodes and battery-powered control systems operating from -40°C to +105°C.
For engineers reviewing the R5F1177AGNA#U0 datasheet, R5F1177AGNA#U0 pinout, R5F1177AGNA#U0 application, or R5F1177AGNA#U0 equivalent, this page delivers verified electrical specs, validated 24-pin HWQFN package mapping, confirmed peripheral integration (dual CSI, UART, dual I²C), real-time clock with calendar, and precise low-power mode timing (0.64 μA STOP mode).
Technical Context
The R5F1177AGNA#U0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.04167 μs at 24 MHz high-speed on-chip oscillator or 66.6 μs at 15 kHz low-speed mode). It integrates a 20-source Data Transfer Controller (DTC) and Event Link Controller (ELC) supporting hardware-triggered peripheral chaining without CPU intervention.
Its analog subsystem includes two independent comparators with window mode, four rail-to-rail op-amps (AMP0–AMP3) with selectable gain configurations, and a 12-bit interval timer for precise timing-critical signal conditioning - all operating within the 1.6 V to 3.6 V supply range and qualified for industrial temperature (-40°C to +105°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash Memory | 8 KB code flash (1 KB block size) with self-programming and flash shield window security |
| Data Flash | 2 KB background operation (BGO) data flash rated for 1,000,000 rewrites at 1.8–3.6 V |
| ADC | 8/12-bit resolution A/D converter with 6 input channels, internal 1.45 V reference, and temperature sensor |
| Timers | Four 16-bit timers, one 12-bit interval timer, four 8-bit interval timers, RTC with calendar and alarm |
| Serial Interfaces | Dual simplified SPI (CSI), one UART, dual simplified I²C - all configurable via peripheral I/O redirection register (PIOR0) |
| Power Modes | HALT (58.3 μA/MHz), STOP (0.64 μA with RTC2+LVD active), SNOOZE - all supported at -40°C to +105°C |
Pinout & Package
Package: 24-pin HWQFN (4 × 4 mm, 0.5 mm pitch) with exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main digital power supply (1.6–3.6 V); decoupling required near pin |
| VSS | Ground | Digital ground reference; connects to exposed die pad per recommendation |
| AVDD / AVSS | Analog power / ground | Must be tied to VDD/VSS respectively; critical for ADC/comparator accuracy |
| REGC | Regulator capacitance | Connect 0.47–1 μF capacitor to VSS to stabilize internal voltage regulator |
| P12–P14, P20–P22, P30–P31, P50–P56 | Multiplexed I/O | Support analog inputs (ANI2–ANI13), op-amp I/O (AMP0±, AMP3±), comparator (IVCMP0/1), UART (RxD0/TxD0), dual CSI/I²C, and external interrupts (INTP0–INTP3) |
| RESET | Reset input | Active-low reset pin; supports internal POR, LVD, WDT, and illegal-instruction reset sources |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.64 μA current draw with RTC2 and LVD active - enables decade-scale battery life in metering applications |
| On-chip debug with tracing | Full on-chip debug function enabled; supports real-time trace without external emulator hardware |
| Dual CSI and dual I²C interfaces | Two independent simplified SPI (CSI) and two simplified I²C channels - eliminates need for external bus expanders in multi-sensor systems |
| Integrated analog front-end | Four op-amps + two comparators + 6-channel ADC + temperature sensor - reduces BOM count in sensor signal conditioning |
| Hardware event linking (ELC) | 20 event inputs linked directly to peripherals (e.g., ADC trigger on timer match) - removes CPU polling overhead |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, calibration, low-power scheduling, and UART-based data transmission. Use Value: 0.64 μA STOP mode extends CR2032 battery life beyond 10 years; integrated op-amps condition thermistor signals without external components. |
Use Scenario: Residential electricity meter with tamper detection and pulse output. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, RTC-based billing intervals, and optical pulse interface. Use Value: Calendar-capable RTC ensures accurate time-of-use billing; 12-bit interval timer synchronizes metrology sampling to grid cycles. |
| Programmable Logic Controller (PLC) I/O Module | Medical Diagnostic Handheld |
|
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs. IC Role / Device Role / Timing Role: Local intelligence unit handling debounce, status reporting, and watchdog supervision of field I/O drivers. Use Value: Dual simplified I²C interfaces enable communication with multiple isolated I/O ASICs; ELC triggers ADC reads on input state change. |
Use Scenario: Portable blood glucose monitor with electrochemical sensor interface. IC Role / Device Role / Timing Role: Analog front-end controller acquiring sensor current, computing concentration, and driving LCD display. Use Value: Four rail-to-rail op-amps configure transimpedance amplifiers for picoampere-level current measurement; integrated temperature sensor compensates for assay drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F11778GNA#U0 | Same package and pinout; 8 KB flash but only 0.7 KB RAM (vs. R5F1177AGNA#U0's 0.7 KB RAM - identical RAM size per datasheet Table 1-3) | Identical peripheral set and low-power profile; differs only in flash configuration option (8 KB base vs. same 8 KB) | Select R5F11778GNA#U0 if flash library footprint or boot swap requirements align with factory-default 8 KB image layout |
| R5F117AAGSP#30 | 30-pin LSSOP package; 16 KB flash, 3 KB RAM, 12-channel ADC, dual CSI/I²C - higher memory and analog channel count | Requires PCB redesign due to 30-pin LSSOP vs. 24-pin HWQFN; suited for designs needing expanded I/O or larger firmware | Choose R5F117AAGSP#30 when additional RAM, ADC channels, or I/O pins are required and board space allows LSSOP footprint |
Compared with R5F11778GNA#U0, the R5F1177AGNA#U0 offers identical flash/RAM capacity and pin compatibility but may differ in factory-programmed option byte settings affecting oscillator startup; versus R5F117AAGSP#30, it trades package size and I/O count for compactness and thermal performance in space-constrained industrial modules.
Availability
R5F1177AGNA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and programmable logic controller I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F1177AGNA#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The RL78/I1D product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial control and sensing applications - emphasizing sub-μA STOP mode, integrated analog, and robust industrial qualification.
FAQ
What is the operating temperature range for the R5F1177AGNA#U0?
The R5F1177AGNA#U0 is rated for industrial operation from -40°C to +105°C. This rating applies to all functional modes including flash programming, where derating guidance (contacting Renesas sales) is advised above +85°C per datasheet Caution 3. The device maintains full specification compliance across this full range.
Does the R5F1177AGNA#U0 support background data flash rewriting?
Yes, the R5F1177AGNA#U0 supports background operation (BGO) for data flash rewriting: instructions can execute from program memory while data flash is being rewritten. Its 2 KB data flash is rated for 1,000,000 rewrite cycles at VDD = 1.8–3.6 V, enabling reliable nonvolatile parameter storage in field-upgradable devices.
How many serial interfaces does the R5F1177AGNA#U0 include?
The R5F1177AGNA#U0 includes two simplified SPI (CSI) channels, one UART channel, and two simplified I²C channels - all accessible via its 24-pin HWQFN package. These interfaces are configurable through the peripheral I/O redirection register (PIOR0), allowing flexible pin assignment without hardware changes.
What is the minimum supply voltage for the R5F1177AGNA#U0?
The R5F1177AGNA#U0 operates down to 1.6 V on both VDD and AVDD. At this voltage, the high-speed on-chip oscillator is limited to 4 MHz (LV mode), and the STOP mode current remains at 0.64 μA - making it suitable for single-cell lithium or primary battery applications with wide discharge curves.
Is the R5F1177AGNA#U0 pin-compatible with other RL78/I1D variants in HWQFN packages?
Yes, the R5F1177AGNA#U0 shares identical 24-pin HWQFN pinout and electrical characteristics with R5F11778GNA#U0. Both devices use the PWQN0024KE-A package and support the same peripheral mappings, enabling direct substitution where flash content and option byte configuration permit.
R5F1177AGNA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/I1D
- 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, WDT
- Number of I/O:
- 15
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 3.6V
- Data Converters:
- A/D 6x8/12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1177AGNA#U0 FAQ
1.How can I place an order for R5F1177AGNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1177AGNA#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 R5F1177AGNA#U0 reliable?
The price and inventory of R5F1177AGNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1177AGNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F1177AGNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1177AGNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1177AGNA#U0?
R5F1177AGNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1177AGNA#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 R5F1177AGNA#U0?
For technical support, including R5F1177AGNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1177AGNA#U0 requirements.
6.How does Aetrix verify that R5F1177AGNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F1177AGNA#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 R5F1177AGNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F1177AGNA#U0?
All R5F1177AGNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1177AGNA#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 R5F1177AGNA#U0 part is unused and in its original packaging.
Return procedure for R5F1177AGNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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