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Renesas R5F1056AASM#30
- Part No.:
- R5F1056AASM#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1056AASM#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,350
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Product details
Overview
R5F1056AASM#30 from Renesas is a 20-pin TSSOP-packaged RL78/G11 16-bit 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 24 MHz operation delivering 33 DMIPS. It targets battery-powered sensors, smart home controllers, and industrial HMI panels requiring stable 1.6–5.5 V operation and -40 to +85°C ambient range.
For engineers reviewing the R5F1056AASM#30 datasheet, R5F1056AASM#30 pinout, R5F1056AASM#30 application, or R5F1056AASM#30 equivalent, key selection criteria include its 20-pin TSSOP package with 17 I/Os (including 10 analog inputs), SNOOZE/STOP/HALT low-power modes (0.64 μA in LVD-only mode), integrated event link controller (ELC) for peripheral coordination, and dual UART/I²C/CSI interfaces for sensor and display connectivity.
Technical Context
The R5F1056AASM#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution time of 0.04167 μs at 24 MHz using the high-speed on-chip oscillator (±1.0% accuracy). Its clock system includes selectable high-speed (up to 24 MHz), middle-speed (4/2/1 MHz), and low-speed (15 kHz) on-chip oscillators, plus external crystal support (1–20 MHz).
Peripheral integration centers on real-time responsiveness: the Event Link Controller (ELC) links 17 event sources to 4 trigger outputs; the Data Transfer Controller (DTC) handles 23 activation sources across normal, repeat, and block transfer modes; and the 12-bit interval timer plus four 16-bit TAU channels support precise timing-critical tasks without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Operating Frequency | 24 MHz (33 DMIPS), with ±1.0% accuracy high-speed on-chip oscillator over 1.8–5.5 V |
| Memory | 16 KB code flash (1 KB blocks), 2 KB data flash (1M rewrite cycles), 1.5 KB RAM |
| Analog Peripherals | 10-channel 10-bit ADC (VDD-referenced), dual 8-bit DACs (0–VDD output), 2 comparators with window mode, 1 PGA |
| Serial Interfaces | 4 CSI channels, 2 UARTs (LIN-capable), 4 simplified I²C channels, 2 multimaster I²C channels |
| Power & Temp | 1.6–5.5 V supply; -40 to +85°C operating range; 0.64 μA STOP mode with LVD active |
| Timers | 4-channel 16-bit TAU, 1-channel 12-bit interval timer, 2-channel 8-bit interval timer, 1 watchdog timer |
Pinout & Package
Package: 20-pin TSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, surface-mount.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Port 0 bit 0 / ANI17 / PCLBUZ1 / TI03 | Configurable GPIO with analog input, programmable buzzer output, and timer input capability |
| P01 | Port 0 bit 1 / ANI16 / INTP5 / SO10 / TxD1 | Multi-function pin supporting serial output, UART transmit, interrupt input, and analog sensing |
| P20 | Port 2 bit 0 / ANI0 / AVREFP / IVREF1 | Analog input channel 0 with positive A/D reference and comparator reference voltage input |
| P21 | Port 2 bit 1 / ANI1 / AVREFM / IVREF0 | Analog input channel 1 with negative A/D reference and comparator reference voltage input |
| P22 | Port 2 bit 2 / ANI2 / PGAI / IVCMP0 | Analog input channel 2, PGA input, and comparator 0 input - enables precision signal conditioning |
| P23 | Port 2 bit 3 / ANI3 / ANO1 / PGAGND | Analog input channel 3, 8-bit DAC output (ANO1), and PGA ground reference |
| P30 | Port 3 bit 0 / ANI21 / KR1 / TI00 / TO01 / INTP3 | Key return input, timer I/O, and interrupt-capable GPIO with analog sensing |
| P31 | Port 3 bit 1 / ANI20 / KR0 / TI01 / TO00 / INTP4 | Key return input, timer I/O, and interrupt-capable GPIO with analog sensing |
| P33 | Port 3 bit 3 / ANI18 / IVCMP1 / INTP11 | Comparator 1 input and interrupt-capable analog input channel |
| P40 | Port 4 bit 0 / TOOL0 / TO03 / PCLBUZ0 / SCK10 | Debug interface, timer output, buzzer control, and SPI clock for peripheral synchronization |
| P54 | Port 5 bit 4 / KR4 / SO00 / TxD0 / TOOLTXD | UART transmit, key return, SPI output, and debug serial transmit |
| P55 | Port 5 bit 5 / KR3 / SI00 / RxD0 / TOOLRXD | UART receive, key return, SPI input, and debug serial receive |
| P56 | Port 5 bit 6 / KR2 / SCK00 / SCL00 / SO11 | I²C/SPI clock and serial output - supports dual-protocol peripheral interfacing |
| REGC | Regulator capacitance | Must be connected to VSS via 0.47–1 μF capacitor to stabilize internal LDO regulator |
| VDD | Power supply | Main supply rail (1.6–5.5 V); powers digital and analog circuitry including ADC/DAC |
| VSS | Ground | Digital ground reference; must be connected to REGC capacitor and all GND pins |
| P121 | Port 12 bit 1 / X1 | Crystal oscillator input (1–20 MHz) - used with external resonator for precise timing |
| P122 | Port 12 bit 2 / X2 / EXCLK | Crystal oscillator output or external clock input - enables flexible clock source selection |
| P125 | Port 12 bit 5 / RESET / INTP9 | Active-low reset input with internal pull-up; also serves as external interrupt source |
| P137 | Port 13 bit 7 / INTP0 / SSI00 | Primary external interrupt input and serial interface chip select - critical for wake-up and peripheral control |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode | Enables background data flash rewriting while CPU remains in low-power state - reduces system latency during firmware updates |
| Event Link Controller (ELC) | Direct hardware linking of 17 peripheral events to 4 trigger outputs eliminates CPU polling overhead for time-critical responses |
| Data Transfer Controller (DTC) | 23-source DMA engine supports block transfers and chain operations - offloads CPU during sensor data acquisition or display refresh |
| Integrated LVD with 14 levels | Configurable voltage detector provides both interrupt and reset options - enables graceful shutdown or brown-out recovery |
| On-chip debug with flash shield | Secure boot swap and flash shield window prevent unauthorized access during development and field programming |
| Dual independent DACs | Separate 8-bit outputs on ANO1 and comparator channel 0 - supports simultaneous analog actuator control and feedback conditioning |
Applications
| Smart Thermostat Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered HVAC controller monitoring temperature, humidity, and occupancy with local display and wireless reporting. IC Role / Device Role / Timing Role: Central MCU managing analog sensor reads (10-bit ADC), driving LCD via SPI, generating buzzer alerts (PCLBUZ0/1), and coordinating low-power sleep/wake cycles. Use Value: 0.64 μA STOP mode extends 2xAA battery life beyond 2 years; integrated DACs drive analog meter outputs without external components. |
Use Scenario: DIN-rail mounted environmental monitor collecting vibration, pressure, and gas concentration data for predictive maintenance. IC Role / Device Role / Timing Role: Real-time data aggregator with ELC-synchronized ADC sampling, DTC-driven UART logging, and watchdog-triggered fault recovery. Use Value: 17 GPIOs support direct connection to multiple analog sensors and digital I/O; 1.6–5.5 V operation ensures compatibility with 3.3 V and 5 V industrial buses. |
| Home Appliance UI Panel | Medical Diagnostic Device |
|
Use Scenario: Touchless control panel for washing machine with capacitive touch detection, LED indicators, and motor control signals. IC Role / Device Role / Timing Role: Interface MCU handling key return scanning (KR0–KR4), PWM buzzer feedback, and isolated communication with main controller via UART/LIN. Use Value: Built-in key interrupt function scans 5 keys with zero CPU load; LIN-capable UART simplifies integration into appliance control networks. |
Use Scenario: Portable blood glucose meter requiring precise analog front-end, low-noise signal processing, and regulatory-compliant power management. IC Role / Device Role / Timing Role: Signal-conditioning MCU using PGA + dual comparators for sensor biasing, 10-bit ADC for measurement, and LVD for battery safety cutoff. Use Value: On-chip PGA eliminates external op-amp; ±1.0% oscillator accuracy meets ISO 13485 timing requirements for medical firmware execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1056AASP#30 | Same RL78/G11 core, identical memory and peripherals, but in 20-pin LSSOP package (4.4 × 6.5 mm, 0.65 mm pitch) | LSSOP offers slightly higher thermal resistance than TSSOP; footprint differs - requires PCB redesign | Select for legacy LSSOP-compatible designs or where board-level moisture resistance is prioritized over thermal performance |
| R5F1057AASM#30 | 24-pin TSSOP variant with 11-channel ADC, 12 external interrupts, and additional CSI/I²C channels - same core and voltage specs | Supports more analog sensors and complex peripheral topologies; not pin-compatible due to extra pins and different pin mapping | Choose when expanding sensor count or adding secondary communication interfaces without changing core firmware architecture |
Compared with R5F1056AASM#30, the R5F1056AASP#30 offers identical functionality in an LSSOP package for alternative assembly processes, while R5F1057AASM#30 scales I/O and analog resources for more demanding sensing applications - neither is pin-compatible, but both share the same toolchain and peripheral register layout.
Availability
R5F1056AASM#30 is available at Aetrix Electronics and suitable for smart thermostat control, industrial sensor nodes, home appliance UI panels, and portable medical diagnostics requiring stable component supply across automotive-grade temperature ranges and long product lifecycles.
Supply support for R5F1056AASM#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, and power management solutions for industrial, automotive, and IoT markets.
The RL78/G11 product line delivers true low-power embedded control with sub-μA standby operation, integrated analog peripherals, and robust development tools - engineered for cost-sensitive, battery-operated, and industrial edge devices.
FAQ
What is the maximum clock frequency supported by the R5F1056AASM#30?
The R5F1056AASM#30 supports a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator, delivering 33 DMIPS performance. This frequency is achievable across the full 1.8–5.5 V supply range with ±1.0% accuracy, and the device also supports external crystal inputs up to 20 MHz for higher precision timing applications.
Does the R5F1056AASM#30 include integrated analog-to-digital conversion capability?
Yes, the R5F1056AASM#30 integrates a 10-bit resolution A/D converter with 10 external analog input channels (ANI0–ANI3, ANI16–ANI22), internal reference voltage (1.45 V), and temperature sensor. It operates across the full 1.6–5.5 V supply range and supports simultaneous sampling with programmable conversion triggers via the Event Link Controller (ELC).
What low-power modes are available on the R5F1056AASM#30 and their typical current consumption?
The R5F1056AASM#30 offers HALT, STOP, and SNOOZE modes. In STOP mode with only the LVD active, it consumes 0.64 μA; in HALT mode, typical current is 58.3 μA/MHz. SNOOZE mode allows background data flash rewriting while maintaining low-power CPU suspension - ideal for firmware updates without full wake-up.
Can the R5F1056AASM#30 support UART communication with LIN protocol compliance?
Yes, the R5F1056AASM#30's UART0 peripheral supports LIN 2.2 protocol features including automatic sync field detection, break field generation, and checksum calculation. This enables direct integration into automotive body electronics and industrial control networks requiring LIN physical layer compatibility without external transceivers.
What is the purpose of the REGC pin on the R5F1056AASM#30 and how must it be connected?
The REGC pin on the R5F1056AASM#30 connects to the internal LDO regulator's stabilization capacitor. It must be connected directly to VSS via a 0.47–1 μF ceramic capacitor - failure to do so risks unstable operation, incorrect voltage regulation, and potential malfunction of analog peripherals like the ADC and DAC. This requirement is explicitly specified in the Renesas datasheet.
R5F1056AASM#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G11
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, WDT
- Number of I/O:
- 13
- 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):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1056AASM#30 FAQ
1.How can I place an order for R5F1056AASM#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1056AASM#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 R5F1056AASM#30 reliable?
The price and inventory of R5F1056AASM#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1056AASM#30 is usually 5 days.
3.What payment methods are accepted for R5F1056AASM#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1056AASM#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1056AASM#30?
R5F1056AASM#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1056AASM#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 R5F1056AASM#30?
For technical support, including R5F1056AASM#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1056AASM#30 requirements.
6.How does Aetrix verify that R5F1056AASM#30 is sourced from the original manufacturer or authorized distributors?
All R5F1056AASM#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 R5F1056AASM#30 meets industry standards.
7.What is the process for return or replacement of R5F1056AASM#30?
All R5F1056AASM#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1056AASM#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 R5F1056AASM#30 part is unused and in its original packaging.
Return procedure for R5F1056AASM#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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