My Inquiry
My Account
Renesas R5F1051AASP#10
- Part No.:
- R5F1051AASP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1051AASP#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 10LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,134
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F1051AASP#10 from Renesas Electronics is a 10-pin, ultra-low-power 16-bit RL78/G11 microcontroller designed for space-constrained consumer applications. It integrates 16 KB flash, 1.5 KB RAM, 2 KB data flash, 10-bit A/D converter (3 channels), 8-bit D/A converter (1 channel), and operates from 1.6 V to 5.5 V with true low-power operation (0.64 μA in STOP mode). It targets battery-powered sensor nodes and smart home peripherals requiring compact size and deterministic real-time control.
For engineers reviewing the R5F1051AASP#10 datasheet, R5F1051AASP#10 pinout, R5F1051AASP#10 application, or R5F1051AASP#10 equivalent, key selection criteria include its 10-pin LSSOP package, 3-channel analog input capability, integrated voltage detector (LVD) with 14-level interrupt/reset selection, and support for HALT/STOP/SNOOZE low-power modes - all critical for energy-sensitive embedded designs.
Technical Context
The R5F1051AASP#10 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. Its clock system supports multiple internal sources: high-speed (up to 24 MHz), middle-speed (4 MHz), and low-speed (15 kHz) oscillators, plus external crystal (X1) or EXCLK input up to 20 MHz.
Peripherals are tightly coupled via the Event Link Controller (ELC), supporting 11 event inputs and 3 trigger outputs for hardware-triggered peripheral chaining without CPU intervention. The device includes a 12-bit interval timer, watchdog timer, and Timer KB unit - all synchronized to the selected clock domain and configurable for precise timing-critical tasks in minimal-footprint systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 Mbyte address space |
| Flash Memory | 16 KB code flash (1 KB block size) with self-programming and boot swap function |
| RAM & Data Flash | 1.5 KB on-chip RAM; 2 KB data flash with background operation (BGO) and 1M rewrite cycles |
| Power Supply Range | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| A/D Converter | 10-bit resolution, 3 external analog inputs (ANI0–ANI2), internal reference (1.45 V) and temperature sensor |
| Low-Power Modes | HALT (58.3 μA/MHz), STOP (0.64 μA), SNOOZE - optimized for intermittent sensing and wake-on-event |
| Operating Temperature | -40°C to +85°C (consumer-grade A-specification) |
Pinout & Package
Package: 10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP/IVREF1/TKBO1 | Analog input / A/D reference (+) / comparator reference / TMKB output | Primary analog input with selectable AVREFP source; dual-role for precision measurement and comparator biasing |
| P21/ANI1/AVREFM/IVREF0 | Analog input / A/D reference (−) / comparator reference | Differential analog input pair with AVREFM; supports ratiometric sensing and offset calibration |
| P22/ANI2/PGAI/IVCMP0/SO10/TxD1 | Analog input / PGA input / comparator input / SPI output / UART transmit | Multi-function pin enabling analog signal conditioning (PGA), comparison, and serial communication in one I/O |
| P40/TOOL0/TO03/PCLBUZ0/SCK10/VCOUT0/INTFO/TKBO0 | Debug interface / timer output / clock output / SPI clock / comparator output / interrupt flag | Shared debug and functional pin - supports programming, timing generation, synchronous comms, and event signaling |
| P137/INTP10/TI03/SI10/RxD1 | External interrupt / timer input / SPI input / UART receive | Hardware interrupt-capable input for edge-triggered wake-up and serial data capture |
| P125/RESET/INTP9 | Reset input / external interrupt | Active-low reset with integrated pull-up; doubles as general-purpose interrupt pin after initialization |
| P122/EXCLK/TI02/INTP1 | External clock input / timer input / interrupt | Accepts external clock source (1–20 MHz) for precise timing or synchronization with external systems |
| REGC | Regulator capacitance terminal | Must connect to VSS via 0.47–1 μF capacitor to stabilize internal voltage regulator - non-optional |
| VSS | Ground reference | Primary digital ground; REGC capacitor must be tied here for stable operation |
| VDD | Power supply | Single-supply rail (1.6–5.5 V); powers entire core, peripherals, and I/O - no separate analog or IOVDD required |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 0.64 μA in STOP mode with only LVD active - extends battery life in always-on sensor nodes |
| On-chip voltage detector (LVD) | 14 programmable threshold levels (1.67–4.06 V) with interrupt or reset output - enables robust brown-out protection |
| Self-programmable flash | Boot swap and flash shield window functions allow secure firmware updates without external programmer |
| Hardware-accelerated math | Multiply/divide/multiply-accumulate instructions execute in single-cycle - improves motor control and filtering efficiency |
| Peripheral I/O redirection | PIOR registers enable dynamic remapping of serial, timer, and interrupt functions to alternate pins - simplifies PCB layout reuse |
Applications
| Smart Thermostat Sensor Node | Wireless Doorbell Transmitter |
|---|---|
Use Scenario: Battery-powered indoor temperature/humidity monitor transmitting data every 30 seconds via sub-GHz RF module. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, LVD monitoring, low-power sleep/wake cycles, and SPI-driven RF IC interface. Use Value: STOP mode current of 0.64 μA enables >5-year CR2032 battery life; integrated 10-bit ADC eliminates external signal conditioning. | Use Scenario: Compact, surface-mount doorbell button with push-to-wake, motion detection, and encrypted RF transmission. IC Role / Device Role / Timing Role: System-on-chip handling mechanical switch debouncing, PIR sensor interface, buzzer tone generation, and AES-encrypted packet assembly. Use Value: On-chip 8-bit D/A drives buzzer directly; 12-bit interval timer ensures precise tone duration; 10-pin LSSOP fits <8 mm² board area. |
| USB-C Power Monitor Module | Industrial Panel Indicator |
Use Scenario: DIN-rail mounted USB-C PD voltage/current monitor with LED status and fault latching. IC Role / Device Role / Timing Role: Analog front-end controller reading shunt voltage and VBUS via 3-channel ADC, driving LEDs via GPIO, and logging faults to data flash. Use Value: 2 KB data flash stores 10,000+ fault timestamps with BGO; LVD detects input undervoltage before brownout. | Use Scenario: Retrofit indicator for legacy machinery showing run/status/fault via discrete LEDs and pushbutton interface. IC Role / Device Role / Timing Role: Dedicated I/O manager with key interrupt (INTP0–INTP11), GPIO drive (±40 mA per pin), and buzzer output for audible alerts. Use Value: N-ch open-drain I/O supports 5 V LED loads; on-chip buzzer controller generates 2.44–10 MHz tones without external oscillator. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1054AASP#10 | 16-pin SSOP; adds 5 more I/O, 8-channel ADC, UART0/LIN, CSI0/CSI1, and key interrupt (3 channels) | Required when >7 I/O or dual UART/CSI interfaces needed; same core, flash, and power specs | Select for expanded peripheral count without changing toolchain or firmware architecture |
| R5F1051AGSP#10 | Identical 10-pin LSSOP package and pinout; industrial-grade (-40°C to +105°C) temperature rating | Suitable for automotive cabin modules or industrial controls where ambient exceeds +85°C | Choose for extended temperature operation - no hardware or software changes required |
Compared with R5F1054AASP#10, the R5F1051AASP#10 trades I/O and interface count for minimal footprint and lower BOM cost; versus R5F1051AGSP#10, it offers identical functionality at reduced thermal qualification - making it optimal for cost-sensitive, space-constrained consumer designs operating within -40°C to +85°C.
Availability
R5F1051AASP#10 is available at Aetrix Electronics and suitable for battery-powered sensor nodes, smart home peripherals, and industrial panel indicators requiring stable component supply and long-term production continuity.
Supply support for R5F1051AASP#10 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G11 product line delivers true low-power 16-bit MCUs targeting cost-sensitive, space-constrained consumer and industrial applications - emphasizing ultra-low standby current, integrated analog peripherals, and simplified development with on-chip debug.
FAQ
What is the maximum operating frequency of the R5F1051AASP#10?
The R5F1051AASP#10 supports a maximum system clock frequency of 24 MHz using the high-speed on-chip oscillator. When driven by an external crystal (X1), the maximum supported frequency is 20 MHz at VDD ≥ 2.7 V. Instruction execution time is 0.04167 μs at 24 MHz, delivering 33 DMIPS performance. The device also supports lower-frequency modes (15 kHz, 4 MHz) for ultra-low-power operation.
Does the R5F1051AASP#10 support in-system programming (ISP)?
Yes, the R5F1051AASP#10 supports full in-system programming via its on-chip debug interface and self-programming flash controller. It includes boot swap functionality and flash shield window protection to enable secure firmware updates in the field. Programming requires the Renesas E2 emulator or compatible debug probe - no external programmer is needed for production or field upgrades of the R5F1051AASP#10.
How many analog input channels does the R5F1051AASP#10 have?
The R5F1051AASP#10 features three external analog input channels: ANI0 (P20), ANI1 (P21), and ANI2 (P22). It also includes an internal temperature sensor and 1.45 V reference voltage source. All analog inputs operate across the full 1.6 V to 5.5 V supply range with 10-bit resolution and support differential measurement using AVREFP/AVREFM references.
What low-power modes are available on the R5F1051AASP#10?
The R5F1051AASP#10 provides three primary low-power modes: HALT (58.3 μA/MHz), STOP (0.64 μA with only LVD active), and SNOOZE (peripheral operation during CPU sleep). Wake-up sources include external interrupts (INTP9, INTP10, INTP1), timer events (TI03), and comparator outputs (VCOUT0). These modes are fully supported in the R5F1051AASP#10 without external components.
Is the R5F1051AASP#10 pin-compatible with other RL78/G11 variants?
No - the R5F1051AASP#10 is a 10-pin LSSOP device and is not pin-compatible with 16-pin, 20-pin, or larger RL78/G11 variants. Its pinout is unique to the 10-pin family (R5F1051x). However, it shares identical register mapping, instruction set, and peripheral IP blocks with other RL78/G11 devices, enabling firmware portability across the family when migrating to higher-pin-count versions like the R5F1054AASP#10.
R5F1051AASP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G11
- Packaging:
- Tray
- 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#10 FAQ
1.How can I place an order for R5F1051AASP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1051AASP#10 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#10 reliable?
The price and inventory of R5F1051AASP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1051AASP#10 is usually 5 days.
3.What payment methods are accepted for R5F1051AASP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1051AASP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1051AASP#10?
R5F1051AASP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1051AASP#10 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#10?
For technical support, including R5F1051AASP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1051AASP#10 requirements.
6.How does Aetrix verify that R5F1051AASP#10 is sourced from the original manufacturer or authorized distributors?
All R5F1051AASP#10 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#10 meets industry standards.
7.What is the process for return or replacement of R5F1051AASP#10?
All R5F1051AASP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1051AASP#10, 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#10 part is unused and in its original packaging.
Return procedure for R5F1051AASP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F1051AASP#10 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
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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…
