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Renesas R5F1051AASP#50
- Part No.:
- R5F1051AASP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1051AASP#50.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 10LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
R5F1051AASP#50 from Renesas Electronics is a 10-pin, ultra-low-power 16-bit RL78/G11 microcontroller designed for cost-sensitive consumer applications requiring robust analog integration and battery longevity. It delivers 33 DMIPS at 24 MHz, features 16 KB code flash, 2 KB data flash, 1.5 KB RAM, 10-bit A/D converter (3 channels), 8-bit D/A converter (1 channel), 2 comparators, and operates across 1.6–5.5 V with -40°C to +85°C ambient range.
For engineers reviewing the R5F1051AASP#50 datasheet, R5F1051AASP#50 pinout, R5F1051AASP#50 application, or R5F1051AASP#50 equivalent, key selection criteria include its 10-pin LSSOP package, true low-power HALT/STOP/SNOOZE modes (0.64 μA in LVD-only operation), integrated voltage detector (14-level LVD), and on-chip debug support - all critical for compact, energy-constrained embedded control designs.
Technical Context
The R5F1051AASP#50 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting minimum instruction execution time of 0.04167 μs at 24 MHz (high-speed on-chip oscillator) and up to 66.6 μs at 15 kHz (low-speed oscillator). It integrates a 12-bit interval timer, watchdog timer, timer KB, and serial interfaces including 1 CSI channel and 1 UART channel.
Its analog subsystem includes a 10-bit A/D converter with 3 external input channels (ANI0–ANI2), internal reference (1.45 V), temperature sensor, and single-channel 8-bit D/A output (ANO1). Power management features POR, 14-level LVD, and REGC-based regulator stabilization - all configured via dedicated registers without external components beyond the required REGC–VSS capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with 33 DMIPS @ 24 MHz |
| Memory | 16 KB code flash (1 KB block size), 2 KB data flash (1M write cycles), 1.5 KB RAM - supports field firmware updates and parameter storage |
| Power Consumption | 58.3 μA/MHz active; 0.64 μA in STOP mode with only LVD enabled - extends battery life in intermittent-sensing applications |
| Analog Peripherals | 10-bit A/D converter (3 ch), 8-bit D/A converter (1 ch), 2 comparators, PGA (1 ch), internal 1.45 V reference - enables sensor signal conditioning without external ICs |
| Operating Range | VDD = 1.6–5.5 V; TA = –40°C to +85°C - suitable for wide-input industrial and consumer power rails |
| Oscillators | High-speed on-chip oscillator (up to 24 MHz, ±1.0% accuracy), low-speed (15 kHz), middle-speed (4 MHz) - eliminates need for external crystals in many use cases |
| Package & Pins | 10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch); 7 total I/O pins (4 CMOS I/O, 3 CMOS input) - enables minimal PCB footprint |
Pinout & Package
Package: 10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), RoHS-compliant, tape-and-reel (#50 embossed tape).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP/IVREF1/TKBO1 | Analog input / A/D reference (+) / comparator reference / TMKB output | Primary analog input channel 0; configurable as AVREFP for A/D reference or IVREF1 for comparator; supports key scan output |
| P21/ANI1/AVREFM/IVREF0 | Analog input / A/D reference (–) / comparator reference | Analog input channel 1; doubles as AVREFM (A/D negative reference) and IVREF0 (comparator reference) |
| P22/ANI2/PGAI/IVCMP0/SO10/TxD1 | Analog input / PGA input / comparator input / SPI output / UART transmit | Analog input channel 2; also serves as PGA input and comparator 0 input; multiplexed with CSI10 SO and UART1 TxD |
| P40/TOOL0/TO03/PCLBUZ0/SCK10/VCOUT0/INTFO/TKBO0 | Tool interface / timer output / clock output / SPI clock / comparator output / interrupt flag / TMKB output | Multi-function pin for programming (TOOL0), buzzer output (PCLBUZ0), CSI10 clock, and VCOUT0 from comparator 0 |
| P137/INTP10/TI03/SI10/RxD1 | External interrupt / timer input / SPI input / UART receive | Interrupt-capable input supporting timer capture (TI03), CSI10 data input (SI10), and UART1 receive (RxD1) |
| P125/RESET/INTP9 | Reset input / external interrupt | Active-low hardware reset with built-in pull-up; doubles as external interrupt source INTP9 |
| P122/EXCLK/TI02/INTP1 | External clock input / timer input / external interrupt | Accepts external system clock (EXCLK) up to 20 MHz; also functions as timer input TI02 and interrupt INTP1 |
| REGC | Regulator capacitance terminal | Must be connected to VSS via 0.47–1 μF capacitor to stabilize internal voltage regulator - no external regulator required |
| VSS | Ground reference | Primary digital ground; connects to REGC capacitor and all internal logic/IO return paths |
| VDD | Power supply | Main supply rail (1.6–5.5 V); powers core, flash, RAM, and all peripherals - no separate analog or IO supply needed |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.64 μA in STOP mode with LVD active - enables multi-year battery life in wake-on-event sensor nodes |
| Integrated analog front-end | 10-bit A/D (3 ch), 8-bit D/A (1 ch), 2 comparators, PGA, and internal 1.45 V reference - reduces BOM count by eliminating discrete signal-conditioning ICs |
| Self-programmable flash | 16 KB code flash with boot swap and flash shield window - supports secure over-the-air (OTA) firmware updates without external programmer |
| On-chip debug interface | Single-wire debug (SWD) compatible via TOOL0/P40 - enables in-circuit debugging and programming without JTAG header |
| Flexible clock system | Three on-chip oscillators (24 MHz high-speed ±1%, 4 MHz middle-speed, 15 kHz low-speed) - eliminates crystal cost and layout complexity for most applications |
| Robust power management | 14-level voltage detector (LVD) with interrupt/reset options and POR circuit - ensures reliable startup and brown-out recovery across wide VDD range |
Applications
| Smart Home Sensors | Portable Medical Devices |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Main controller managing A/D sampling, LVD monitoring, low-power sleep/wake cycles, and UART communication. Use Value: 0.64 μA STOP current and integrated 10-bit A/D enable >5-year coin-cell operation; 10-pin LSSOP minimizes PCB area. |
Use Scenario: Handheld pulse oximeter requiring analog signal acquisition, LED drive timing, and buzzer feedback. IC Role / Device Role / Timing Role: System-on-chip handling photodiode signal conditioning (PGA + A/D), LED current control (D/A + PWM), and audible alerts (PCLBUZ0). Use Value: Single-chip integration of PGA, 10-bit A/D, 8-bit D/A, and buzzer output eliminates 4+ discrete analog components. |
| Industrial Control Panels | Consumer Appliance Controllers |
Use Scenario: Small HMI panel with push-button inputs, LED indicators, and RS-232 interface to PLC. IC Role / Device Role / Timing Role: Input scanner (key interrupt), LED driver (GPIO + PCLBUZ0), and UART transceiver (RxD1/TxD1). Use Value: 10-bit A/D supports analog potentiometer inputs; 14-level LVD ensures stable operation during factory power fluctuations. |
Use Scenario: Microwave oven control board managing keypad scan, display backlight, relay drivers, and safety interlocks. IC Role / Device Role / Timing Role: Real-time safety monitor using watchdog timer, LVD, and RESET pin; executes cooking logic with 33 DMIPS performance. Use Value: On-chip POR/LVD and watchdog eliminate external reset ICs; 16 KB flash accommodates full cooking algorithm and UI state machine. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1054AASP#50 | 16-pin SSOP; adds 5 more I/O pins, 8-channel A/D, 2-channel D/A, 2 CSI, 2 UART, key interrupt (3 ch) | Required when >7 I/O or >3 analog inputs needed; supports LIN-compliant UART0 | Select for expanded peripheral count while retaining identical core, memory, and low-power profile |
| R5F1056AASP#50 | 20-pin LSSOP; adds 10-channel A/D, 2 CSI, 3 simplified I²C, 5-key interrupt, 12 external interrupts | Suitable for designs needing I²C sensor networks or multi-button interfaces without increasing package size beyond 20 pins | Choose when I²C connectivity or higher interrupt capacity is mandatory; same 16 KB/2 KB/1.5 KB memory map |
Compared with R5F1054AASP#50 and R5F1056AASP#50, the R5F1051AASP#50 provides the smallest footprint and lowest pin count while maintaining full RL78/G11 instruction set compatibility, identical flash/RAM capacities, and the same ultra-low-power STOP mode - making it optimal for space- and cost-constrained single-sensor endpoints.
Availability
R5F1051AASP#50 is available at Aetrix Electronics and suitable for smart home sensors, portable medical devices, and consumer appliance controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F1051AASP#50 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 specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G11 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive consumer and industrial applications demanding high integration, extended battery life, and simple development - exemplified by the R5F1051AASP#50's 10-pin LSSOP form factor and comprehensive analog peripherals.
FAQ
What is the maximum operating frequency of the R5F1051AASP#50?
The R5F1051AASP#50 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator, delivering 33 DMIPS performance. External crystal operation is limited to 20 MHz (VDD ≥ 2.7 V), 16 MHz (VDD ≥ 2.4 V), 8 MHz (VDD ≥ 1.8 V), or 4 MHz (VDD ≥ 1.6 V). The R5F1051AASP#50 achieves 0.04167 μs minimum instruction execution time at 24 MHz.
Does the R5F1051AASP#50 support in-system programming?
Yes, the R5F1051AASP#50 supports full in-system programming via its on-chip debug interface using the TOOL0 pin (P40). It includes self-programming capability with boot swap function and flash shield window protection, enabling secure firmware updates without removing the R5F1051AASP#50 from the target board.
How many analog input channels does the R5F1051AASP#50 have?
The R5F1051AASP#50 integrates a 10-bit A/D converter with 3 external analog input channels (ANI0, ANI1, ANI2) and one internal reference channel. It also includes an internal temperature sensor and 1.45 V reference voltage source - all accessible without external components.
What is the purpose of the REGC pin on the R5F1051AASP#50?
The REGC pin on the R5F1051AASP#50 connects to an external 0.47–1 μF capacitor tied to VSS to stabilize the internal voltage regulator. This eliminates the need for an external LDO and ensures clean core voltage under dynamic load conditions - a mandatory connection per Renesas design guidelines.
Is the R5F1051AASP#50 pin-compatible with other RL78/G11 variants?
No, the R5F1051AASP#50 is not pin-compatible with other RL78/G11 variants due to its unique 10-pin LSSOP configuration. Higher-pin-count variants (e.g., R5F1054AASP#50, R5F1056AASP#50) use different packages (16-pin SSOP, 20-pin LSSOP) with distinct pinouts and additional I/O functionality - PCB layout must be redesigned for migration.
R5F1051AASP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G11
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, UART/USART
- Peripherals:
- LVD, POR, WDT
- Number of I/O:
- 4
- 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 4x10b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1051AASP#50 FAQ
1.How can I place an order for R5F1051AASP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1051AASP#50 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 R5F1051AASP#50 reliable?
The price and inventory of R5F1051AASP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1051AASP#50 is usually 5 days.
3.What payment methods are accepted for R5F1051AASP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1051AASP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1051AASP#50?
R5F1051AASP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1051AASP#50 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 R5F1051AASP#50?
For technical support, including R5F1051AASP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1051AASP#50 requirements.
6.How does Aetrix verify that R5F1051AASP#50 is sourced from the original manufacturer or authorized distributors?
All R5F1051AASP#50 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 R5F1051AASP#50 meets industry standards.
7.What is the process for return or replacement of R5F1051AASP#50?
All R5F1051AASP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1051AASP#50, 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 R5F1051AASP#50 part is unused and in its original packaging.
Return procedure for R5F1051AASP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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