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Renesas R5F1051AGSP#70
- Part No.:
- R5F1051AGSP#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1051AGSP#70.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G11 16K
- Quantity:
- Payment:
- Shipping:
Inventory:2,078
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Product details
Overview
R5F1051AGSP#70 from Renesas Electronics is a 10-pin, industrial-grade RL78/G11 16-bit microcontroller with 16 KB code flash, 2 KB data flash, and 1.5 KB RAM. It operates from 1.6 V to 5.5 V, delivers 33 DMIPS at 24 MHz, and achieves ultra-low power consumption (58.3 μA/MHz active, 0.64 μA in LVD-only mode), targeting battery-powered sensor nodes and low-cost industrial control interfaces.
For engineers reviewing the R5F1051AGSP#70 datasheet, R5F1051AGSP#70 pinout, R5F1051AGSP#70 application, or R5F1051AGSP#70 equivalent, this page provides verified technical context, validated pin functions, confirmed low-power operating modes (HALT/STOP/SNOOZE), real-world interface capabilities (UART ×1, CSI ×1, 3-channel 10-bit ADC), and direct alternative part comparisons for rapid design-in decisions.
Technical Context
The R5F1051AGSP#70 integrates the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.04167 μs @ 24 MHz high-speed on-chip oscillator). It supports multiply/divide/MAC instructions and features a 1 Mbyte address space with four banks of 8-bit general-purpose registers.
Its clock system includes selectable high-speed (up to 24 MHz ±1.0%), middle-speed (4/2/1 MHz), and low-speed (15 kHz) on-chip oscillators, plus external crystal support (1–4 MHz @ 1.6–5.5 V). Power management includes POR, 14-level LVD, HALT/STOP/SNOOZE modes, and regulator capacitance (REGC) pin for internal voltage regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 Mbyte address space |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals without level shifters |
| Flash Memory | 16 KB code flash + 2 KB data flash - supports background operation (BGO) and 1M rewrite cycles for firmware updates and parameter storage |
| ADC/DAC | 10-bit A/D converter (3 external + 1 internal channel); 8-bit D/A converter (1 channel) - suitable for analog sensor interfacing and simple actuator control |
| Low-Power Modes | HALT (58.3 μA/MHz), STOP (0.64 μA with LVD only), SNOOZE - extends battery life in intermittent-sensing applications |
| Peripherals | UART ×1, CSI (SPI-like) ×1, 12-bit interval timer ×1, 8-bit interval timer ×2, watchdog timer ×1, comparator ×2, PGA ×1 |
| Package & Pins | 10-pin LSSOP (4.4 × 3.6 mm, 0.65 mm pitch) with 7 I/O pins - compact footprint for space-constrained PCBs |
Pinout & Package
10-pin plastic LSSOP package (4.4 × 3.6 mm, 0.65-mm pitch) with exposed pad not present; REGC requires 0.47–1 μF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/RESET/INTP9 | Reset input / External interrupt 9 | Active-low hardware reset with optional interrupt capability; must be pulled high during normal operation |
| P122/EXCLK/TI02/INTP1 | External clock input / Timer input 2 / Interrupt 1 | Accepts external system clock (1–4 MHz) or serves as timer capture input; dual-function pin reduces BOM count |
| REGC | Regulator capacitance | Connects to VSS via 0.47–1 μF capacitor to stabilize internal voltage regulator output |
| VSS | Ground reference | Primary digital ground return; must be low-impedance connection for ADC/DAC accuracy and noise immunity |
| VDD | Power supply | Single 1.6–5.5 V supply powers entire device - eliminates need for multiple rail regulators |
| P20/ANI0/AVREFP/IVREF1/TKBO1 | Analog input 0 / ADC reference (+) / Comparator ref 1 / TMKB output | Multi-function pin supporting precision analog sensing, reference voltage sourcing, and keyboard scan output |
| P21/ANI1/AVREFM/IVREF0 | Analog input 1 / ADC reference (−) / Comparator ref 0 | Provides differential ADC reference and dual comparator references - enables ratiometric measurements and window detection |
| P22/ANI2/PGAI/IVCMP0/SO10/TxD1 | Analog input 2 / PGA input / Comparator input 0 / SPI output / UART TX | Combines analog front-end (PGA gain adjustment), comparator threshold monitoring, and serial communication output |
| P40/TOOL0/TO03/PCLBUZ0/SCK10/VCOUT0/INTFO/TKBO0 | Debug interface / Timer output 3 / Clock output / SPI clock / Comparator output / Interrupt flag / Keyboard output | Highly multiplexed pin enabling production programming (TOOL0), timing signal generation, and system status indication |
| P137/INTP10/TI03/SI10/RxD1 | External interrupt 10 / Timer input 3 / SPI input / UART RX | Supports edge-triggered wake-up from STOP mode, pulse-width measurement, and full-duplex serial receive |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP modes | Reduces active current to 58.3 μA/MHz and standby to 0.64 μA - extends coin-cell battery life to multi-year operation |
| On-chip debug with flash shield | Enables secure firmware development and field updates without exposing flash contents - critical for certified industrial devices |
| Self-programming with boot swap | Allows safe over-the-air (OTA) firmware upgrades by validating new code in secondary bank before activation |
| Integrated analog subsystem | Combines 10-bit ADC (3 ch), 8-bit DAC (1 ch), 2-channel comparator, and 1-channel PGA - eliminates 4–5 discrete analog ICs |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DMA transfer → interrupt) reduces CPU load and latency |
| Programmable clock/buzzer output | Generates precise audio tones (117 Hz–15 kHz) or clock signals (2.44 kHz–10 MHz) directly from timer - no external oscillator needed |
Applications
| Smart Sensor Node | Industrial Control Interface |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to gateway every 5 minutes. IC Role / Device Role / Timing Role: Main controller executing sensor readout, ADC conversion, low-power scheduling, and UART transmission. Use Value: 0.64 μA STOP mode extends CR2032 battery life beyond 3 years; integrated 10-bit ADC eliminates external signal conditioning. |
Use Scenario: DIN-rail mounted I/O module converting 4–20 mA analog inputs to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Signal acquisition controller managing ADC sampling, linearization, and UART-to-RS485 protocol translation. Use Value: 1.6–5.5 V operation interfaces directly with industrial power rails; 14-level LVD ensures reliable brown-out detection in noisy environments. |
| Home Appliance Keypad | Energy Metering Subsystem |
|
Use Scenario: Touchless keypad for HVAC control using capacitive sensing and key-interrupt wake-up. IC Role / Device Role / Timing Role: Key scan controller with built-in key interrupt function and programmable buzzer feedback. Use Value: On-chip key interrupt detects press/release without polling; PCLBUZ0 generates audible confirmation tones without external driver. |
Use Scenario: Auxiliary metering unit measuring auxiliary loads (e.g., solar inverter leakage current) with isolated ADC interface. IC Role / Device Role / Timing Role: Precision analog front-end controller performing ratiometric ADC measurements using AVREFP/AVREFM references. Use Value: Differential reference inputs enable accurate current sensing despite supply rail fluctuations; PGA amplifies low-level shunt voltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1054AGSP#70 | 16-pin SSOP, 13 I/O pins, 8-channel ADC, UART ×2, CSI ×2 - adds 6 GPIO and second serial interface | Required when expanding to multi-sensor fusion or dual-protocol communication (e.g., UART + I²C) | Select for designs needing >7 I/O or concurrent serial protocols; same core/peripheral IP ensures software compatibility |
| R5F1056AGSP#30 | 20-pin LSSOP, 17 I/O pins, 10-channel ADC, CSI ×3, simplified I²C ×3 - adds key interrupt (5 ch) and more analog channels | Necessary for complex HMI with matrix keypad + analog dials + buzzer feedback | Choose when scaling from single-sensor to multi-input HMI; retains identical low-power profile and flash architecture |
Compared with R5F1051AGSP#70, the R5F1054AGSP#70 offers 6 additional I/O and dual UART for protocol bridging, while the R5F1056AGSP#30 provides 10 ADC channels and key interrupt for advanced user interfaces - both maintain the same 16 KB/2 KB flash/RAM and ultra-low power HALT/STOP modes.
Availability
R5F1051AGSP#70 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial control interfaces, home appliance keypads, and energy metering subsystems requiring stable component supply across automotive-qualified, industrial, and consumer product lifecycles.
Supply support for R5F1051AGSP#70 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with annual revenue exceeding $10 billion and operations in over 20 countries.
The RL78/G11 product line targets cost-sensitive, ultra-low-power general-purpose applications - designed specifically for battery-operated sensors, industrial controls, and white goods where 1.6–5.5 V operation, sub-μA standby, and integrated analog peripherals reduce system complexity.
FAQ
What is the maximum operating frequency and associated power consumption of the R5F1051AGSP#70?
The R5F1051AGSP#70 achieves 24 MHz operation using its high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and −40 to +105°C. At this frequency, it consumes 58.3 μA per MHz in active mode, translating to approximately 1.4 mA total at 24 MHz - verified in the RL78/G11 datasheet Section 2.4 AC Characteristics.
Does the R5F1051AGSP#70 support in-system programming and secure firmware updates?
Yes, the R5F1051AGSP#70 supports full in-system programming via its on-chip debug interface (TOOL0 pin) and includes flash shield window functionality to prevent unauthorized readout of protected code regions. It also implements boot swap capability, allowing validated firmware images to be loaded into a secondary flash bank before atomic activation - essential for secure OTA updates.
How many analog input channels does the R5F1051AGSP#70 provide, and what is their resolution?
The R5F1051AGSP#70 integrates a 10-bit successive-approximation A/D converter with three external analog input channels (ANI0–ANI2) plus one internal channel (temperature sensor). All channels operate across the full 1.6–5.5 V supply range and support differential reference inputs (AVREFP/AVREFM) for ratiometric accuracy - confirmed in Section 1.1 Features and Table 1-1 of the datasheet.
What are the supported low-power modes of the R5F1051AGSP#70, and how do they differ in wake-up capability?
The R5F1051AGSP#70 supports HALT (CPU stopped, peripherals active), STOP (all clocks halted except LVD), and SNOOZE (selected peripherals active during deep sleep). Wake-up sources include external interrupts (INTP9/INTP10), timer events (TI02/TI03), and comparator outputs (VCOUT0/VCOUT1) - all documented in Section 1.1 Features and Section 12 Low-Power Functions of the RL78/G11 User's Manual.
Can the R5F1051AGSP#70 generate audible tones or precise clock signals without external components?
Yes, the R5F1051AGSP#70 includes a programmable clock/buzzer output controller (PCLBUZ0) capable of generating frequencies from 117 Hz to 15 kHz (using 15 kHz subsystem clock) or 2.44 kHz to 10 MHz (using 20 MHz main clock). This eliminates external oscillators or buzzer drivers - functionality is implemented in hardware and configured via the PCLBUZ control registers.
R5F1051AGSP#70 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:
- -
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1051AGSP#70 FAQ
1.How can I place an order for R5F1051AGSP#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1051AGSP#70 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 R5F1051AGSP#70 reliable?
The price and inventory of R5F1051AGSP#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1051AGSP#70 is usually 5 days.
3.What payment methods are accepted for R5F1051AGSP#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1051AGSP#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1051AGSP#70?
R5F1051AGSP#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1051AGSP#70 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 R5F1051AGSP#70?
For technical support, including R5F1051AGSP#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1051AGSP#70 requirements.
6.How does Aetrix verify that R5F1051AGSP#70 is sourced from the original manufacturer or authorized distributors?
All R5F1051AGSP#70 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 R5F1051AGSP#70 meets industry standards.
7.What is the process for return or replacement of R5F1051AGSP#70?
All R5F1051AGSP#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1051AGSP#70, 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 R5F1051AGSP#70 part is unused and in its original packaging.
Return procedure for R5F1051AGSP#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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