Renesas R5F12008ANS#10
- Part No.:
- R5F12008ANS#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
R5F12008ANS#10.pdf
- Description:
- 16BIT MCU RL78/G15 8K 8WDFN -40
- Quantity:
- Payment:

- Shipping:

Inventory:2,856
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Product details
Overview
R5F12008ANS#10 from Renesas Electronics is an 8-pin, 8 KB code flash, 1 KB RAM RL78/G15 16-bit microcontroller with integrated 8/10-bit A/D converter (3 channels), 8-channel 16-bit timer array, and UART/Simplified I²C/CSI serial interfaces. It operates from a single 2.4–5.5 V supply, supports HALT/STOP low-power modes, and targets compact industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F12008ANS#10 datasheet, R5F12008ANS#10 pinout, R5F12008ANS#10 application, or R5F12008ANS#10 equivalent, key selection criteria include its 8-pin LSSOP-0.65mm package, −40°C to +125°C M-grade temperature rating, on-chip high-speed oscillator (±1.0% @ −20 to +85°C), and support for background data flash writes at full VDD range.
Technical Context
The R5F12008ANS#10 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, 1 MB address space, and four banks of 8-bit general-purpose registers. Its clock system integrates selectable high-speed (1–16 MHz) and low-speed (15 kHz) on-chip oscillators, plus external crystal (X1/X2) or EXCLK input support up to 12 MHz.
Peripherals include an 8-channel TAU0 timer unit with PWM capability, one 12-bit interval timer, one watchdog timer, one comparator (IVCMP0), and a BCD adjustment circuit. The device uses a simplified SAU0 serial array unit for UART, CSI (SPI-compatible), and I²C functions - all mapped to shared pins via peripheral I/O redirection registers (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline; enables deterministic real-time control at ≤16 MHz |
| Flash / RAM | 8 KB code flash (1 KB block erase), 1 KB data flash (512 B blocks), 1 KB on-chip RAM |
| Supply Voltage | 2.4 V to 5.5 V single supply; supports direct connection to Li-ion, 3.3 V, or 5 V rails without regulation |
| A/D Converter | 8/10-bit resolution, 3 analog inputs (ANI0, ANI2, ANI3); internal 0.815 V reference enables ratiometric sensing |
| Timers | 8-channel 16-bit timer array (TAU0), 1-channel 12-bit interval timer, 1-channel watchdog timer |
| Serial Interfaces | 1 UART channel, 1 simplified I²C channel, 1 CSI (SPI-compatible) channel - all share P00–P04 pins |
| Operating Temp | −40°C to +125°C (M-grade industrial); qualified for under-hood automotive and motor drive environments |
Pinout & Package
Package: 8-pin LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40 | Multi-function I/O | Tool interface (TOOL0), buzzer output (PCLBUZ0), comparator output (VCOUT0), interrupt (INTP2), timer I/O (TI01/TO01) |
| P125 | System control | Active-low reset input (RESET), interrupt (INTP1), optional comparator output (VCOUT0) |
| VSS | Power ground | Dedicated analog/digital ground reference; must be connected to PCB ground plane |
| VDD | Power supply | Primary 2.4–5.5 V supply rail; requires local 100 nF decoupling capacitor |
| P137 | General-purpose I/O | Interrupt input (INTP0), timer input (TI00); no analog or serial function |
| P04 | Analog/digital I/O | Analog input (ANI3), internal reference (IVREF0), interrupt (INTP3), timer I/O (TI01/TO01), SPI/I²C clock (SCK00/SCL00) |
| P03 | Analog/digital I/O | Analog input (ANI2), comparator input (IVCMP0), interrupt (INTP4), timer output (TO00), SPI/I²C data (SO00/TxD0/SCLA0) |
| P01 | Debug/serial I/O | Analog input (ANI0), debug UART (TOOLRxD), interrupt (INTP5), timer I/O (TI02/TO02), SPI/I²C data (SI00/RxD0/SDA00/SDAA0) |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | HALT/STOP modes reduce current to µA-level; 54 µA/MHz active current enables battery life extension in sensor nodes |
| On-chip debug | Integrated on-chip debug interface eliminates need for external JTAG emulator; supports flash programming and real-time trace |
| Self-programming flash | Code and data flash reprogrammable in-system without boot swap; supports firmware updates over UART or I²C |
| Configurable peripherals | Peripheral I/O redirection register (PIOR) allows dynamic remapping of serial/timer functions to alternate pins |
| Industrial temp grade | M-grade qualification (−40°C to +125°C) ensures reliable operation in motor drives, power tools, and HVAC controls |
Applications
| Smart Sensor Node | Motor Control Interface |
|---|---|
|
Use Scenario: Compact environmental sensor module measuring temperature, humidity, and voltage using external transducers. IC Role / Device Role / Timing Role: Central controller executing sensor polling, ADC conversion, data filtering, and UART-based telemetry transmission. Use Value: Integrated 3-channel ADC, low-power STOP mode, and 8 KB flash enable standalone operation with firmware-upgradable calibration tables. |
Use Scenario: Brushless DC motor commutation feedback interface with Hall-effect sensors and PWM gate driver control. IC Role / Device Role / Timing Role: Real-time timing engine generating precise 6-step commutation signals via TAU0 PWM outputs and capturing Hall-edge events via INTP0–INTP5. Use Value: 8-channel 16-bit timer array with dead-time insertion and synchronized capture/compare ensures accurate motor phase alignment. |
| Industrial Remote I/O | Consumer Appliance Controller |
|
Use Scenario: DIN-rail mounted digital input/output expansion module communicating via RS-485 to PLC master. IC Role / Device Role / Timing Role: Protocol handler converting Modbus RTU frames to GPIO state changes, managing isolation barrier timing, and supervising power-on reset. Use Value: M-grade temperature range and selectable SPOR (3 reset thresholds) ensure robust operation across wide ambient and supply fluctuations in factory settings. |
Use Scenario: Washing machine main control board managing water valves, pump drivers, user interface, and safety interlocks. IC Role / Device Role / Timing Role: System orchestrator coordinating motor sequencing, heater control, door lock actuation, and buzzer feedback via PCLBUZ0. Use Value: On-chip buzzer output (PCLBUZ0), programmable clock generator, and BCD correction circuit simplify UI and display subsystem design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12007ANS#10 | 4 KB code flash (vs. 8 KB), identical pinout, package, peripherals, and temperature grade | Suitable for cost-sensitive designs with smaller firmware footprint and no future feature expansion needs | Select when firmware size remains ≤3.5 KB and long-term code growth is not anticipated |
| R5F12018ASP#10 | 10-pin LSSOP package, adds one analog input (ANI1), one I/O pin (P02), and second CSI channel; same 8 KB flash and M-grade rating | Required when additional analog sensing or dual serial bus isolation (e.g., separate I²C for sensors and UART for comms) is needed | Choose if layout allows 10-pin footprint and design requires ≥4 analog channels or independent serial paths |
Compared with R5F12007ANS#10, the R5F12008ANS#10 provides double flash capacity for field-upgradable features; compared with R5F12018ASP#10, it offers identical core functionality in a smaller 8-pin footprint-ideal for space-constrained industrial housings where pin count is minimized.
Availability
R5F12008ANS#10 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and remote I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F12008ANS#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G15 product line delivers ultra-low-power, cost-optimized 16-bit MCUs targeting space-constrained industrial controls, appliance subsystems, and sensor edge devices requiring high reliability and long-term supply stability.
FAQ
What is the maximum operating frequency and instruction execution time of the R5F12008ANS#10?
The R5F12008ANS#10 supports a maximum high-speed on-chip oscillator frequency of 16 MHz, yielding a minimum instruction execution time of 0.0625 μs. This timing is achievable only when the high-speed oscillator is selected and stabilized; the device also supports lower frequencies (1–8 MHz) for reduced power consumption without changing the core architecture.
Does the R5F12008ANS#10 support in-system programming of its flash memory?
Yes, the R5F12008ANS#10 supports full in-system programming of both code flash and data flash memory via its on-chip debug interface. It enables self-programming without boot swap functionality, allowing firmware updates through UART, I²C, or CSI interfaces - critical for remote field upgrades in deployed R5F12008ANS#10-based systems.
How many analog input channels does the R5F12008ANS#10 provide, and what is their resolution?
The R5F12008ANS#10 integrates an 8/10-bit successive approximation A/D converter with three dedicated analog input channels: ANI0, ANI2, and ANI3. Resolution is selectable per conversion, and the internal 0.815 V reference voltage enables ratiometric measurements when used with resistive sensors or voltage dividers.
What serial communication interfaces are available on the R5F12008ANS#10, and how are they physically implemented?
The R5F12008ANS#10 provides one UART channel, one simplified I²C channel, and one CSI (SPI-compatible) channel - all implemented within the SAU0 serial array unit. These interfaces share pins P00–P04 via multiplexing and are configured through the peripheral I/O redirection register (PIOR), enabling flexible routing without hardware redesign.
Is the R5F12008ANS#10 qualified for extended temperature operation, and what is its industrial grade designation?
Yes, the R5F12008ANS#10 carries the "M" grade designation, qualifying it for continuous operation from −40°C to +125°C. This makes it suitable for under-hood automotive subsystems, industrial motor drives, and power conversion equipment where ambient thermal stress exceeds standard commercial or industrial (G-grade) limits.
R5F12008ANS#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 8-WDFN Exposed Pad
- Series:
- RL78/G15
- Packaging:
- Tray
- 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:
- 5
- 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 3x8/10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12008ANS#10 FAQ
1.How can I place an order for R5F12008ANS#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12008ANS#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 R5F12008ANS#10 reliable?
The price and inventory of R5F12008ANS#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12008ANS#10 is usually 5 days.
3.What payment methods are accepted for R5F12008ANS#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12008ANS#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12008ANS#10?
R5F12008ANS#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12008ANS#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 R5F12008ANS#10?
For technical support, including R5F12008ANS#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12008ANS#10 requirements.
6.How does Aetrix verify that R5F12008ANS#10 is sourced from the original manufacturer or authorized distributors?
All R5F12008ANS#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 R5F12008ANS#10 meets industry standards.
7.What is the process for return or replacement of R5F12008ANS#10?
All R5F12008ANS#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12008ANS#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 R5F12008ANS#10 part is unused and in its original packaging.
Return procedure for R5F12008ANS#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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