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Renesas R5F12068ASP#30
- Part No.:
- R5F12068ASP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F12068ASP#30.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,999
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Product details
Overview
R5F12068ASP#30 from Renesas Electronics is an 8 KB flash, 1 KB RAM RL78/G15 20-pin LSSOP microcontroller operating at 2.4–5.5 V with 11-channel 8/10-bit ADC, dual comparators, and integrated UART, CSI (SPI), and I²C interfaces - deployed in industrial sensor nodes and low-power metering systems.
For engineers reviewing the R5F12068ASP#30 datasheet, R5F12068ASP#30 pinout, R5F12068ASP#30 application, or R5F12068ASP#30 equivalent, this page delivers verified electrical specs, validated 20-pin LSSOP package mapping, functional pin roles per multiplexed configuration, and direct alternative part comparisons for embedded control design-in.
Technical Context
The R5F12068ASP#30 implements the RL78 CPU core with a 3-stage CISC pipeline, supporting minimum instruction execution times from 0.0625 μs (16 MHz) to 1.0 μs (1 MHz). It integrates a high-speed on-chip oscillator (1–16 MHz, ±1.0% accuracy at −20°C to +85°C) and a dedicated 15 kHz low-speed oscillator for watchdog operation.
Its peripheral set includes eight 16-bit timer channels (TAU0), one 12-bit interval timer, one watchdog timer, two independent comparators (IVCMP0/IVCMP1 with selectable internal/external reference), and a BCD correction circuit - all coordinated via a centralized interrupt controller supporting 19 vectored sources (8 external, 11 internal).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 3-stage CISC CPU with 1 MB address space and (8×8-bit register × 4 banks) |
| Flash Memory | 8 KB code flash (1 KB block size); supports self-programming without boot swap |
| Data Flash | 1 KB data flash (512 B blocks); 1,000,000 write cycles; 32-bit rewrite unit |
| ADC Resolution | 8/10-bit SAR ADC with 11 analog inputs (ANI0–ANI10) and internal 0.815 V reference |
| Operating Voltage | 2.4 V to 5.5 V single supply; SPOR reset with 4 selectable detection thresholds (2.25–4.45 V) |
| Temperature Range | −40°C to +125°C (M-grade industrial qualification) |
| Low-Power Modes | HALT and STOP modes; 54 µA/MHz active current at TA = 125°C |
Pinout & Package
Package: 20-pin LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), tray packaging (#30 specification).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 / SCK01 / SCL01 / SCLA0 | Primary UART transmit pin; also serves as SPI clock output (SCK01) and I²C clock (SCL01/SCLA0) |
| P01 | TOOLRxD / ANI0 / SI00 / RxD0 / SDA00 / SDAA0 / TI02 / TO02 | UART receive input with 8/10-bit ADC channel 0; supports serial data input and timer I/O |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / SCK00 / SCL00 / TI01 / TO01 / SO01 | Programmable clock/buzzer output with analog input 1 and comparator output VCOUT0 |
| P03 | ANI2 / IVCMP0 / TO00 / TI00 / SO00 / TxD0 | Analog input 2 and comparator input 0; configured as PWM output or UART transmit when remapped |
| P04 | ANI3 / IVREF0 / TI01 / TO01 / SI00 / RxD0 / SO00 / TxD0 | ADC input 3 with internal reference voltage source; supports full-duplex serial interface functions |
| P20 | ANI10 / IVREF1 / TI00 / TI03 / TO03 / SCK01 / SCL01 | 10th ADC channel with second comparator reference; enables dual I²C/SPI clock domains |
| P22 | ANI8 / TI06 / TO06 / SDA01 | Analog input 8 with dedicated timer channel and secondary I²C data line |
| VDD / VSS | Power Supply / Ground | Single 2.4–5.5 V rail; decoupling required per Renesas layout guidelines for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 54 µA/MHz active current at 125°C enables battery-powered operation for >10 years in sensor nodes |
| Dual Independent Comparators | Two fully configurable comparators (IVCMP0/IVCMP1) with internal/external reference selection for threshold monitoring |
| Hardware BCD Correction | On-chip BCD adjustment circuit eliminates software overhead in digital display and metering applications |
| Flexible Clock System | High-speed on-chip oscillator (1–16 MHz) + low-speed 15 kHz oscillator + external crystal (X1/X2) support |
| Peripheral I/O Redirection | PIOR registers enable dynamic remapping of up to 8 peripheral functions across 11 pins without hardware change |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
|
Use Scenario: Compact environmental sensor module measuring temperature, humidity, and CO₂ with local signal conditioning and wireless reporting. IC Role / Device Role / Timing Role: Primary system controller executing ADC sampling, comparator-based alarm triggering, and UART-to-LoRaWAN bridge logic. Use Value: 11-channel ADC and dual comparators allow simultaneous multi-sensor acquisition; HALT mode reduces average current to <1 µA during sleep intervals. |
Use Scenario: Residential electricity meter with real-time consumption logging, tamper detection, and optical IR communication. IC Role / Device Role / Timing Role: Main metrology processor managing pulse counting, LCD drive, EEPROM logging, and IR physical layer timing. Use Value: BCD correction accelerates numeric display updates; M-grade −40°C to +125°C rating ensures reliability in outdoor meter enclosures. |
| Home Appliance Control | Industrial PLC I/O Module |
|
Use Scenario: Washing machine main control board managing motor drive, water level sensing, and user interface feedback. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating PWM motor control, ADC-based pressure sensing, and buzzer alerts. Use Value: Eight 16-bit timer channels provide independent PWM outputs for motor phases and solenoid drivers; 20-pin LSSOP fits tight PCB layouts. |
Use Scenario: DIN-rail mounted digital I/O expansion module interfacing with 24 V sensors and actuators in factory automation. IC Role / Device Role / Timing Role: Isolated fieldbus gateway translating Modbus RTU over RS-485 to local GPIO and analog input processing. Use Value: UART + simplified I²C + CSI interfaces enable concurrent communication with host PLC and local sensor clusters; 5.5 V tolerance accommodates industrial supply ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12067ASP#30 | 4 KB code flash (vs. 8 KB); identical pinout, peripherals, and package | Suitable for cost-sensitive designs with smaller firmware footprints and no future feature expansion | Select when firmware size remains ≤3.5 KB and long-term code growth is not anticipated |
| R5F12068GSP#30 | Same 8 KB flash and peripherals; rated for −40°C to +105°C (G-grade vs. M-grade) | Valid for industrial environments where ambient exceeds 105°C but does not reach 125°C | Choose for lower-cost qualification when maximum operating temperature is capped at +105°C |
Compared with R5F12068ASP#30, R5F12067ASP#30 reduces flash capacity by 50% without altering I/O or timing capability, while R5F12068GSP#30 maintains full functionality at reduced thermal margin - enabling trade-offs between longevity assurance and bill-of-materials cost.
Availability
R5F12068ASP#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and home appliance control systems requiring stable component supply across extended product lifecycles.
Supply support for R5F12068ASP#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 solutions for automotive, industrial, and IoT markets.
The RL78/G15 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, thermally demanding embedded control - targeting metering, sensing, and appliance applications where reliability and code density matter.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F12068ASP#30?
The R5F12068ASP#30 features a high-speed on-chip oscillator selectable from 1 MHz to 16 MHz. At −20°C to +85°C, its frequency accuracy is ±1.0% over VDD = 2.4–5.5 V. Accuracy degrades to ±1.5% at −40°C to −20°C and ±1.5% at +85°C to +125°C, consistent with its M-grade industrial qualification.
How many analog input channels does R5F12068ASP#30 support, and what ADC resolution options are available?
The R5F12068ASP#30 supports 11 analog input channels (ANI0–ANI10) with an 8/10-bit successive approximation register (SAR) ADC. Resolution is software-selectable per conversion, and the internal reference voltage is fixed at 0.815 V (TYP.), enabling precise ratiometric measurements without external references.
Does R5F12068ASP#30 include hardware support for BCD arithmetic, and how is it used?
Yes, the R5F12068ASP#30 integrates a dedicated on-chip BCD correction circuit. This hardware accelerator automatically adjusts binary results after addition/subtraction to maintain valid BCD format - eliminating software loops and reducing CPU load in digital display, metering, and counter applications.
What are the key differences between R5F12068ASP#30 and R5F12067ASP#30?
R5F12068ASP#30 and R5F12067ASP#30 share identical pinout, peripherals, package (20-pin LSSOP), and temperature grade (M: −40°C to +125°C), differing only in code flash capacity: 8 KB vs. 4 KB. Both use the same 1 KB data flash and 1 KB RAM, making R5F12067ASP#30 a drop-in replacement where firmware size permits.
Can R5F12068ASP#30 operate with an external crystal oscillator, and what frequency range is supported?
Yes, the R5F12068ASP#30 supports external crystal or ceramic resonator operation via X1/X2 pins. The specified frequency range is 1 MHz to 12 MHz at VDD = 2.4–5.5 V. Oscillation stabilization must be verified using the OSTC/OSTS registers before switching from the on-chip oscillator to ensure deterministic startup timing.
R5F12068ASP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G15
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 17
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 11x8/10b SAR
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12068ASP#30 FAQ
1.How can I place an order for R5F12068ASP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12068ASP#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 R5F12068ASP#30 reliable?
The price and inventory of R5F12068ASP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12068ASP#30 is usually 5 days.
3.What payment methods are accepted for R5F12068ASP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12068ASP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12068ASP#30?
R5F12068ASP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12068ASP#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 R5F12068ASP#30?
For technical support, including R5F12068ASP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12068ASP#30 requirements.
6.How does Aetrix verify that R5F12068ASP#30 is sourced from the original manufacturer or authorized distributors?
All R5F12068ASP#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 R5F12068ASP#30 meets industry standards.
7.What is the process for return or replacement of R5F12068ASP#30?
All R5F12068ASP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12068ASP#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 R5F12068ASP#30 part is unused and in its original packaging.
Return procedure for R5F12068ASP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F12068ASP#30 Tags
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