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Renesas R5F12008ANS#50
- Part No.:
- R5F12008ANS#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
R5F12008ANS#50.pdf
- Description:
- 16BIT MCU RL78/G15 8K 8WDFN -40
- Quantity:
- Payment:
- Shipping:
Inventory:2,188
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Product details
Overview
R5F12008ANS#50 from Renesas Electronics is an 8-pin RL78/G15 16-bit microcontroller with 8 KB code flash, 1 KB RAM, and 1 KB data flash, operating from 2.4 V to 5.5 V. It integrates a 16 MHz high-speed on-chip oscillator (±1.0% accuracy at −20 to +85°C), 3-channel 8/10-bit A/D converter, 1 comparator, UART, simplified I²C, and CSI interfaces - deployed in battery-powered industrial sensors and low-power metering systems.
For engineers reviewing the R5F12008ANS#50 datasheet, R5F12008ANS#50 pinout, R5F12008ANS#50 application, or R5F12008ANS#50 equivalent, key selection criteria include its 8-pin LSSOP/SSOP/WDFN package compatibility, 8 KB flash capacity, −40°C to +85°C consumer-grade temperature range, and integrated debug interface supporting tool-based firmware development without external JTAG hardware.
Technical Context
The R5F12008ANS#50 implements the RL78-S2 CPU core with a 3-stage pipeline CISC architecture, delivering minimum instruction execution time of 0.0625 μs at 16 MHz. Its memory subsystem includes 8 KB code flash (1 KB block size), 1 KB data flash (512 B blocks, 1M rewrite cycles), and 1 KB SRAM - all accessible under single-supply operation.
Peripherals are tightly coupled to the TAU0 timer array (8 channels), SAU0 serial array (2 channels), and dedicated interrupt controller supporting 6 external sources (INTP0–INTP5). Clock generation combines selectable high-speed on-chip oscillator (1–16 MHz), low-speed 15 kHz oscillator, and optional external crystal (X1/X2) or EXCLK input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78-S2 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 8 KB code flash (1 KB erase blocks); supports self-programming without boot swap |
| Data Flash | 1 KB (512 B blocks); 32-bit rewrite unit; 1,000,000 TYP. rewrites at VDD = 2.4–5.5 V |
| Operating Voltage | 2.4 V to 5.5 V single supply - enables direct connection to Li-ion, alkaline, or USB-powered rails |
| High-Speed Oscillator | 16 MHz internal oscillator (±1.0% accuracy at TA = −20 to +85°C); no external crystal required |
| A/D Converter | 8/10-bit resolution; 3 analog inputs (ANI0, ANI2, ANI3); internal 0.815 V reference |
| Package & Pins | 8-pin LSSOP/SSOP/WDFN (0.65 mm pitch); 6 I/O ports including 2 N-ch open-drain outputs |
Pinout & Package
Package: 8-pin plastic WDFN (3 × 3 mm, 0.65-mm pitch) per Renesas ordering code R5F12008ANS#50 - compatible with standard 0.65-mm pitch pick-and-place and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40 | Tool interface / Timer output / Comparator output | Primary debug I/O (TOOL0); supports TI01/TO01 timer function and VCOUT0 output for comparator feedback |
| P125 | Reset / Interrupt input | Active-low RESET̅ with internal pull-up; doubles as INTP1 for external event triggering |
| VSS | Ground reference | Dedicated power return path; must be low-impedance for analog and digital noise separation |
| VDD | Power supply | Single 2.4–5.5 V rail powering core, peripherals, and I/O - decoupling capacitor required at pin |
| P137 | Interrupt input / Timer input | INTP0 trigger source; accepts TI00 for edge-triggered timing capture or event counting |
| P04 | Analog input / Serial clock / Interrupt | ANI3 analog channel; SCK00 for CSI00 interface; INTP3 for priority interrupt handling |
| P03 | UART TX / Analog input / Comparator input | TOOLTxD debug output and TxD0 UART transmit; ANI2 and IVCMP0 enable sensor signal conditioning |
| P01 | UART RX / Analog input / Serial data | TOOLRxD debug input and RxD0 UART receive; ANI0 and SDA00 support I²C slave communication |
Key Features
| Feature | Design Value |
|---|---|
| Low-power HALT/STOP modes | Reduces current draw to sub-μA levels during idle - critical for battery life in portable instrumentation |
| On-chip debug (OCDS) | Enables full-cycle firmware development via TOOL0/TOOLRxD/TOOLTxD pins - eliminates need for external debugger hardware |
| Programmable clock/buzzer output (PCLBUZ0) | Generates precise square-wave tones up to 10 MHz - used for audible alerts or clock distribution without external components |
| Selectable power-on-reset (SPOR) | Four voltage thresholds (2.25–4.45 V) allow robust startup across varying supply conditions and brown-out scenarios |
| BCD correction circuit | Hardware-accelerated decimal arithmetic - simplifies display driver logic and reduces firmware overhead in metering applications |
Applications
| Smart Energy Sensor | Industrial Temperature Monitor |
|---|---|
Use Scenario: Battery-powered current/voltage sensing node in smart grid endpoint devices. IC Role / Device Role / Timing Role: Main system controller executing ADC sampling, UART telemetry transmission, and low-power sleep scheduling. Use Value: 8 KB flash stores firmware with AES encryption stack; 3-channel ADC digitizes shunt voltage and thermistor readings; STOP mode extends 10-year battery life. | Use Scenario: DIN-rail mounted ambient temperature logger with RS-485 backhaul. IC Role / Device Role / Timing Role: Standalone measurement engine managing PT100 bridge excitation, cold-junction compensation, and UART-to-RS485 protocol translation. Use Value: Internal 0.815 V reference ensures stable ADC gain across temperature; ±1.0% oscillator accuracy maintains time-stamped log integrity over 15-year deployment. |
| Home Appliance Control Panel | Portable Medical Diagnostic Tool |
Use Scenario: Touchless UI controller for HVAC or kitchen appliances using capacitive proximity sensing. IC Role / Device Role / Timing Role: Real-time peripheral manager driving buzzer feedback (PCLBUZ0), reading button matrix (GPIO), and communicating with main MCU via UART. Use Value: Integrated comparator (IVCMP0) detects finger proximity without external op-amps; 8-pin WDFN minimizes PCB footprint in space-constrained front panels. | Use Scenario: Handheld pulse oximeter requiring ultra-low standby current and analog front-end control. IC Role / Device Role / Timing Role: Dedicated analog subsystem controller sequencing LED drivers, photodiode amplifiers, and ADC acquisition windows. Use Value: HALT mode draws only 54 µA/MHz at 125°C - meets IEC 60601 thermal safety limits while enabling continuous battery monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12007ANS#50 | 4 KB code flash (vs. 8 KB); identical pinout, peripherals, and package | Suitable for simpler firmware with smaller memory footprint - e.g., basic timer-based control without OTA updates | Select when firmware size remains under 3.5 KB and future feature expansion is not required |
| R5F12018ASP#50 | 10-pin LSSOP package; adds ANI1 and PCLBUZ0 on P02; same 8 KB flash and oscillator specs | Enables additional analog sensing or buzzer drive without changing core firmware - ideal for cost-sensitive upgrades | Choose when board layout allows 10-pin footprint and second analog channel improves signal redundancy |
Compared with R5F12007ANS#50 and R5F12018ASP#50, the R5F12008ANS#50 delivers optimal balance of memory headroom and minimal footprint - making it the preferred choice for new designs where compactness and firmware scalability are both critical.
Availability
R5F12008ANS#50 is available at Aetrix Electronics and suitable for smart energy sensors, industrial temperature monitors, home appliance control panels, and portable medical diagnostic tools requiring stable component supply and long-term production continuity.
Supply support for R5F12008ANS#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/G15 product line targets ultra-low-power embedded control applications - designed for battery-operated sensors, metering, and appliance subsystems where energy efficiency, small form factor, and integrated analog peripherals are essential.
FAQ
What is the maximum operating frequency and oscillator accuracy of the R5F12008ANS#50?
The R5F12008ANS#50 supports a maximum high-speed on-chip oscillator frequency of 16 MHz with ±1.0% accuracy across TA = −20°C to +85°C. It also provides selectable frequencies of 1, 2, 4, 8, and 16 MHz. External crystal (X1/X2) or EXCLK input up to 12 MHz is supported for higher precision timing requirements in the R5F12008ANS#50 design.
Does the R5F12008ANS#50 support in-circuit debugging without external hardware?
Yes, the R5F12008ANS#50 includes an on-chip debug system (OCDS) accessible via TOOL0, TOOLRxD, and TOOLTxD pins - enabling full firmware download, breakpoint setting, and register inspection without external JTAG/SWD adapters. This capability is fully functional in the R5F12008ANS#50 during development but should be disabled in mass-production firmware per Renesas guidelines.
How many analog input channels does the R5F12008ANS#50 provide, and what is their resolution?
The R5F12008ANS#50 integrates a single 8/10-bit successive-approximation A/D converter with 3 analog input channels: ANI0, ANI2, and ANI3. Resolution is selectable per conversion, and the internal 0.815 V reference ensures consistent scaling across temperature - a confirmed specification for the R5F12008ANS#50 per its RL78/G15 datasheet Rev.1.40.
What package type and pin count does the R5F12008ANS#50 use?
The R5F12008ANS#50 uses an 8-pin WDFN package (3 × 3 mm, 0.65-mm pitch), designated by the "NS" suffix in the part number. It is also available in 8-pin SOP (SN) and shares pin-compatible functionality with other 8-pin RL78/G15 variants - all verified for the R5F12008ANS#50 in Renesas' official ordering documentation.
Can the R5F12008ANS#50 operate across extended temperature ranges?
No - the R5F12008ANS#50 is rated for TA = −40°C to +85°C (Consumer-grade "A" variant). Industrial variants (G/M) exist in the RL78/G15 family (e.g., R5F12008GNS), but the R5F12008ANS#50 specifically conforms to the A-grade specification and is not qualified for operation beyond +85°C.
R5F12008ANS#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 8-WDFN Exposed Pad
- Series:
- RL78/G15
- Packaging:
- Tape & Reel (TR)
- 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#50 FAQ
1.How can I place an order for R5F12008ANS#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12008ANS#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 R5F12008ANS#50 reliable?
The price and inventory of R5F12008ANS#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12008ANS#50 is usually 5 days.
3.What payment methods are accepted for R5F12008ANS#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12008ANS#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12008ANS#50?
R5F12008ANS#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12008ANS#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 R5F12008ANS#50?
For technical support, including R5F12008ANS#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12008ANS#50 requirements.
6.How does Aetrix verify that R5F12008ANS#50 is sourced from the original manufacturer or authorized distributors?
All R5F12008ANS#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 R5F12008ANS#50 meets industry standards.
7.What is the process for return or replacement of R5F12008ANS#50?
All R5F12008ANS#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12008ANS#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 R5F12008ANS#50 part is unused and in its original packaging.
Return procedure for R5F12008ANS#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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