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Renesas R5F1056AASP#30
- Part No.:
- R5F1056AASP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1056AASP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:375
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Product details
Overview
R5F1056AASP#30 from Renesas Electronics is a 20-pin LSSOP 8-bit/16-bit RL78/G11 microcontroller designed for ultra-low-power general-purpose embedded control. It integrates 16 KB code flash, 2 KB data flash, 1.5 KB RAM, 10-channel 10-bit ADC, dual 8-bit DACs, two comparators, PGA, and supports UART, I²C, CSI, and DTC-targeting battery-powered sensor nodes, home appliance controllers, and industrial HMI panels.
For engineers reviewing the R5F1056AASP#30 datasheet, R5F1056AASP#30 pinout, R5F1056AASP#30 application, or R5F1056AASP#30 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use cases, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The R5F1056AASP#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.04167 μs at 24 MHz high-speed on-chip oscillator). It operates across 1.6–5.5 V supply and supports four power modes: HALT, STOP, SNOOZE, and active-achieving 58.3 μA/MHz active current and 0.64 μA in LVD-only operation.
Its peripheral set includes a 4-channel TAU timer, 12-bit interval timer, watchdog timer, event link controller (ELC) with 17 input events, and data transfer controller (DTC) with 23 activation sources. The device uses dedicated analog pins (ANI0–ANI22, ANO1), internal reference (1.45 V), and temperature sensor for sensor interface applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 8/16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash Memory | 16 KB code flash (1 KB block size) enabling firmware updates and boot swap functionality |
| Data Flash | 2 KB data flash with background operation (BGO) and 1M rewrite cycles for parameter storage |
| ADC | 10-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor |
| DAC | Dual 8-bit D/A converters: ANO1 pin output and comparator channel 0 output |
| Supply Range | 1.6 V to 5.5 V operation-supports direct Li-ion, coin-cell, and industrial 3.3/5 V rails |
| Power Modes | HALT (58.3 μA/MHz), STOP (0.64 μA w/LVD only), SNOOZE-enabling sub-μA system sleep |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, rated for -40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP/IVREF1 | Analog input / ADC reference (+) / comparator reference 1 | Primary analog input with selectable AVREFP as ADC positive reference or IVREF1 for comparator |
| P21/ANI1/AVREFM/IVREF0 | Analog input / ADC reference (−) / comparator reference 0 | ADC negative reference input and comparator reference source; enables ratiometric measurement |
| P22/ANI2/PGAI/IVCMP0 | Analog input / PGA input / comparator 0 input | Supports programmable gain amplification (PGA) and direct connection to comparator 0 |
| P23/ANI3/ANO1/PGAGND | Analog input / DAC output / PGA ground | Delivers 8-bit DAC output on ANO1 pin; PGAGND provides dedicated low-noise ground for PGA |
| P30–P33 | General-purpose I/O with KR, UART, I²C, CSI, timer functions | Multi-function ports supporting key return scanning, UART0/I²C11/CSI11, and TO00–TO01 outputs |
| P40/TOOL0/TO03/SCK10/VCOUT0/INTFO | Tool interface / timer output / SPI clock / comparator output / interrupt flag | Enables in-circuit debugging via TOOL0; VCOUT0 provides comparator 0 output without external buffer |
| P54–P56 | Key return inputs / UART0/CSI00/I²C00 interfaces | Supports up to 3-key matrix scan (KR4–KR2); also serves as SO00/TxD0, SI00/RxD0, and SCL00/SDA00 |
| REGC | Regulator capacitor terminal | Must be connected to VSS via 0.47–1 μF capacitor to stabilize internal voltage regulator |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V supply rail; no separate EVDD required (20-pin variant) |
| RESET / P125 | Active-low reset input / external interrupt | Hardware reset with built-in POR/LVD; doubles as INTP9 for wake-up from low-power modes |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 58.3 μA/MHz active current and 0.64 μA STOP mode with LVD enabled-extends battery life in portable devices |
| On-chip debug & self-programming | Integrated on-chip debug interface and flash shield window function-enables secure field firmware updates |
| Flexible clock system | High-speed on-chip oscillator (±1.0% accuracy at 24 MHz), middle-speed (4 MHz), and low-speed (15 kHz) options-eliminates external crystal for cost-sensitive designs |
| Peripheral integration | Event Link Controller (ELC) links 17 event sources to peripherals without CPU intervention-reduces ISR latency and power |
| Analog subsystem | 10-bit ADC with internal temperature sensor and 1.45 V reference, dual 8-bit DACs, 2-channel comparator with window mode-supports closed-loop sensor control without external ICs |
Applications
| Smart Home Sensor Node | Industrial Panel Controller |
|---|---|
Use Scenario: Battery-powered CO₂/motion/humidity sensor node transmitting data via UART-to-LoRa module. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, DAC-based calibration offset correction, and low-power wake-up via key interrupt or timer. Use Value: 0.64 μA STOP mode extends 2xAA battery life beyond 5 years; integrated DAC eliminates external trimming DAC. |
Use Scenario: Touchless HMI panel in factory automation with LED indicators, buzzer feedback, and RS-485 communication. IC Role / Device Role / Timing Role: Central MCU handling touch-key scanning (KR0–KR4), buzzer tone generation (PCLBUZ0/1), UART0 for RS-485, and GPIO-driven LEDs. Use Value: Dual buzzer outputs enable distinct alert tones; 10-channel ADC monitors panel temperature and supply voltage for safety shutdown. |
| White Goods Motor Control | Energy Meter Front-End |
Use Scenario: Fan speed controller in refrigerator with hall-effect rotor position sensing and PWM-driven BLDC driver. IC Role / Device Role / Timing Role: Real-time motor commutation using TAU timer outputs (TO00–TO03), ADC for current sensing, and DTC for fast ADC-to-PWM synchronization. Use Value: DTC offloads CPU during high-frequency sampling; 4-channel TAU supports independent 3-phase PWM generation. |
Use Scenario: AC energy meter front-end measuring voltage/current via shunt/resistive dividers and computing kWh via on-chip DOC. IC Role / Device Role / Timing Role: Analog acquisition engine with 10-bit ADC (ANI0–ANI9), BCD correction for display, and CRC for data integrity in flash-stored calibration tables. Use Value: On-chip BCD circuit reduces firmware overhead for 7-segment display; 2 KB data flash stores per-unit calibration coefficients with 1M write endurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1056AGSP#30 | Same package and pinout; rated for -40°C to +105°C industrial temperature range | Required for HVAC control, motor drives, or outdoor equipment operating above +85°C ambient | Select R5F1056AGSP#30 when extended temperature qualification and higher thermal margin are mandatory |
| R5F1057AASP#50 | 24-pin HWQFN (4×4 mm); adds 1 more ADC channel (11 total), 3 additional key return inputs (KR5–KR7), and extra CSI/I²C channels | Suitable for designs needing expanded I/O, larger keypads, or multi-sensor fusion with concurrent serial interfaces | Choose R5F1057AASP#50 only if pin count, analog channel count, or peripheral concurrency exceeds R5F1056AASP#30 capability |
Compared with R5F1056AASP#30, the R5F1056AGSP#30 offers identical functionality with extended temperature rating, while the R5F1057AASP#50 provides greater I/O and peripheral headroom in a physically larger package-neither is pin-compatible, but both share the same toolchain and peripheral register map.
Availability
R5F1056AASP#30 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial HMI panels, white goods motor controllers, and energy meter front-ends requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for R5F1056AASP#30 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 automotive, industrial, and IoT markets.
The RL78/G11 product line delivers true low-power embedded control for cost-sensitive consumer and industrial applications-optimized for sub-μA sleep, integrated analog, and rapid development with scalable tooling.
FAQ
What is the maximum operating frequency of the R5F1056AASP#30?
The R5F1056AASP#30 supports a maximum high-speed on-chip oscillator frequency of 24 MHz, delivering 33 DMIPS performance. When using an external crystal (X1), the maximum main system clock is 20 MHz at VDD ≥ 2.7 V. Instruction execution time is as fast as 0.04167 μs under 24 MHz on-chip oscillator operation-verified in the R01DS0282EJ0260 datasheet Section 1.1.
Does the R5F1056AASP#30 support in-system programming (ISP)?
Yes, the R5F1056AASP#30 supports full in-system programming via its on-chip debug interface and self-programming capability. It includes boot swap functionality and flash shield window protection to prevent unauthorized access. Data flash memory allows background rewriting (BGO) while executing code from program memory-enabling robust firmware updates without halting operation.
What analog peripherals are integrated into the R5F1056AASP#30?
The R5F1056AASP#30 integrates a 10-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DACs (one output on ANO1 pin, one to comparator channel 0), two comparators with window mode, and a single-channel programmable gain amplifier (PGA). These analog resources eliminate the need for external signal-conditioning ICs in sensor interface applications.
Is the R5F1056AASP#30 pin-compatible with other RL78/G11 variants?
No-the R5F1056AASP#30 is a 20-pin LSSOP device and is not pin-compatible with 16-pin (R5F1054AASP#30), 24-pin (R5F1057AASP#50), or 25-pin (R5F1058AALA#U0) RL78/G11 variants. Pin mapping, I/O count, and peripheral routing differ across packages; migration requires PCB layout revision and I/O remapping in firmware.
What power supply configuration is required for the REGC pin on the R5F1056AASP#30?
The REGC pin on the R5F1056AASP#30 must be connected to VSS via a 0.47 μF to 1.0 μF ceramic capacitor-per datasheet Caution on Page 6. This stabilizes the internal voltage regulator; failure to implement this decoupling risks unstable operation or failure to enter low-power modes. No external voltage is applied to REGC-it is an output-capacitor node only.
R5F1056AASP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G11
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 17
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1056AASP#30 FAQ
1.How can I place an order for R5F1056AASP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1056AASP#30 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 R5F1056AASP#30 reliable?
The price and inventory of R5F1056AASP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1056AASP#30 is usually 5 days.
3.What payment methods are accepted for R5F1056AASP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1056AASP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1056AASP#30?
R5F1056AASP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1056AASP#30 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 R5F1056AASP#30?
For technical support, including R5F1056AASP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1056AASP#30 requirements.
6.How does Aetrix verify that R5F1056AASP#30 is sourced from the original manufacturer or authorized distributors?
All R5F1056AASP#30 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 R5F1056AASP#30 meets industry standards.
7.What is the process for return or replacement of R5F1056AASP#30?
All R5F1056AASP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1056AASP#30, 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 R5F1056AASP#30 part is unused and in its original packaging.
Return procedure for R5F1056AASP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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