My Inquiry
My Account
Renesas R5F12018ASP#30
- Part No.:
- R5F12018ASP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F12018ASP#30.pdf
- Description:
- MCU: RL78
- Quantity:
- Payment:
- Shipping:
Inventory:2,724
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F12018ASP#30 from Renesas Electronics is an RL78/G15 10-pin LSSOP microcontroller featuring an 8 KB code flash memory, 1 KB RAM, and 1 KB data flash memory. It operates from a single 2.4–5.5 V supply, supports 16 MHz high-speed on-chip oscillator (±1.0% accuracy at −20 to +85°C), and delivers true low-power operation with HALT/STOP modes - ideal for battery-powered industrial sensor nodes and smart home control modules.
For engineers reviewing the R5F12018ASP#30 datasheet, R5F12018ASP#30 pinout, R5F12018ASP#30 application, or R5F12018ASP#30 equivalent, key selection criteria include its 4-channel 8/10-bit ADC, dual simplified I²C interfaces, UART, 8-channel 16-bit timer array, and support for −40°C to +105°C industrial ambient temperature (G-grade).
Technical Context
The R5F12018ASP#30 implements the RL78 CPU core - a CISC architecture with 3-stage pipeline and 1 MB address space - enabling deterministic real-time execution with minimum instruction time of 0.0625 μs at 16 MHz. Its peripheral set includes SAU0 serial array unit supporting CSI (SPI-compatible), simplified I²C, and UART in a single hardware block.
Power management integrates selectable power-on-reset (SPOR) with four voltage thresholds, low-speed 15 kHz on-chip oscillator for watchdog operation, and dedicated HALT/STOP modes. Analog subsystem comprises one comparator with internal/external reference selection and 4-channel ADC with 0.815 V internal reference voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 CPU, 3-stage pipeline, 1 MB address space - enables compact firmware with efficient interrupt handling and deterministic timing. |
| Flash Memory | 8 KB code flash + 1 KB data flash - supports field firmware updates and nonvolatile parameter storage without external EEPROM. |
| ADC | 4-channel 8/10-bit A/D converter with 0.815 V internal reference - eliminates need for external reference in cost-sensitive analog sensing. |
| Oscillator | High-speed on-chip oscillator: 1–16 MHz selectable, ±1.0% accuracy (−20 to +85°C) - removes crystal BOM and layout area for clock circuitry. |
| Operating Temp | −40°C to +105°C (G-grade) - qualified for industrial motor controls, HVAC sensors, and factory automation edge nodes. |
| I/O Count | 8 GPIO pins (P00–P04, P125, P137, P40) with N-ch open-drain capability and on-chip pull-up - simplifies interface to switches, LEDs, and I²C buses. |
| Serial Interfaces | 1 UART + 2 simplified I²C channels + 1 simplified SPI (CSI) - enables concurrent communication with display, sensor, and host MCU without protocol translation. |
Pinout & Package
Package: 10-pin LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), RoHS-compliant, tray-packaged (#30 specification).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / INTx / SO00 / TxD0 | Dedicated UART transmit pin with tool debug capability - enables in-system programming and serial logging without multiplexing overhead. |
| P01 | TOOLRxD / ANI0 / INTx / SI00 / RxD0 / SDA00 / SDAA0 | Multi-function pin supporting UART receive, ADC input, and I²C data - allows shared debug/communication/analog paths in space-constrained designs. |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / INTx / SCK00 / SCL00 | Programmable clock/buzzer output with analog input and SPI/I²C clock - enables audio feedback, timing signal generation, and sensor interface on one pin. |
| P03 | ANI2 / IVCMP0 / INTx / TO00 / SCLA0 | Analog input + comparator channel + timer output + I²C clock - supports closed-loop control (e.g., thermal cutoff) with direct PWM drive and sensor monitoring. |
| P04 | ANI3 / IVREF0 / INTx / TI01 / TO01 | ADC input + comparator reference + timer I/O - permits self-referenced analog measurement and precise timing capture for pulse-width analysis. |
| P125 | RESET / INTP1 / VCOUT0 | Active-low reset with interrupt and comparator output - enables hardware reset coordination and fault signaling via same pin. |
| P137 | INTP0 / TI00 | Primary external interrupt + timer input - used for wake-from-STOP event detection and external signal edge counting. |
| P40 | TOOL0 / INTP2 / TI01 / TO01 | Tool interface pin with interrupt and timer I/O - provides debug trigger and real-time event capture without consuming dedicated GPIO. |
| VDD | Power Supply | Single 2.4–5.5 V supply - compatible with Li-ion, 3.3 V LDO, and 5 V legacy rails; no separate analog/digital rail required. |
| VSS | Ground | Common reference for all digital, analog, and I/O circuits - requires solid ground plane for noise immunity in mixed-signal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power HALT/STOP modes | Reduces current consumption to sub-μA levels while retaining RAM and register state - extends battery life in intermittent-sensing applications. |
| On-chip debug (via TOOL0/TOOLRxD/TOOLTxD) | Enables full in-circuit debugging and flash programming using only two pins - eliminates need for JTAG/SWD headers and reduces PCB footprint. |
| Self-programming flash | Allows firmware updates in-field without boot swap or external programmer - supports over-the-air (OTA) feature upgrades and calibration data writes. |
| Selectable SPOR voltage thresholds | Four reset voltage options (2.25/2.68/3.02/4.45 V) let designers match reset behavior precisely to system power rail sequencing. |
| BCD correction circuit | Hardware-accelerated binary-to-decimal conversion - offloads CPU for display drivers, metering, and human-interface numeric formatting. |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Compact environmental monitor measuring temperature, humidity, and air quality in factory settings. IC Role / Device Role / Timing Role: Main controller executing sensor polling, local decision logic, and RS-485/UART communication. Use Value: Integrated 4-channel ADC and dual simplified I²C eliminate external signal conditioning ICs; G-grade temp range ensures reliability near machinery heat sources. |
Use Scenario: Residential HVAC control unit managing zone valves, fan speed, and user interface. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor inputs, relay drivers, display backlight PWM, and IR remote decoding. Use Value: 8-channel 16-bit timer array generates precise PWM for fan control and buzzer tones; on-chip BCD correction simplifies 7-segment display updates. |
| Wireless Remote Control Hub | Appliance Motor Driver Interface |
|
Use Scenario: BLE/Wi-Fi gateway aggregating commands from smartphone apps and translating to IR/RF protocols. IC Role / Device Role / Timing Role: Protocol translator and command scheduler interfacing with wireless SoC via UART and driving IR LED or RF transmitter. Use Value: Dual simplified I²C channels manage multiple sensor peripherals (e.g., battery gauge, motion detector); low-power STOP mode minimizes standby current. |
Use Scenario: Brushless DC motor commutation interface in white goods (e.g., washing machine drum control). IC Role / Device Role / Timing Role: Hall-effect sensor conditioner and commutation sequencer generating 3-phase gate drive signals. Use Value: Timer array supports synchronized 3-phase PWM outputs; comparator with internal reference enables robust zero-crossing detection without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12017ASP#30 | 4 KB code flash (vs. 8 KB), identical package, pinout, and peripheral set. | Suitable for simpler firmware with <16 KB total memory footprint; lacks headroom for future feature expansion. | Select when firmware size is confirmed ≤3.5 KB and long-term scalability is not required. |
| R5F12048ASP#30 | 16-pin SSOP package, 8 KB flash, adds X1/X2 crystal oscillator support and 7-channel ADC. | Enables higher-precision timing via external crystal and more sensor inputs - but requires larger PCB area and additional passive components. | Choose when crystal-referenced timing accuracy (<±50 ppm) or >4 analog channels are mandatory. |
Compared with R5F12017ASP#30, the R5F12018ASP#30 provides double flash capacity for complex control algorithms; compared with R5F12048ASP#30, it trades pin count and crystal support for minimal footprint and BOM simplicity in cost-sensitive 10-pin designs.
Availability
R5F12018ASP#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and wireless remote control hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F12018ASP#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 product line delivers ultra-low-power, cost-optimized MCUs targeting battery-operated sensors, appliance controls, and industrial HMI - emphasizing integrated analog, flexible clocking, and minimal external component count.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F12018ASP#30?
The R5F12018ASP#30 features a high-speed on-chip oscillator configurable up to 16 MHz, with ±1.0% frequency accuracy over −20°C to +85°C (G-grade). This eliminates the need for an external crystal in many applications while maintaining sufficient timing precision for UART communication and PWM generation. The oscillator is factory-trimmed and does not require calibration by the user.
Does R5F12018ASP#30 support external crystal oscillation?
No, the R5F12018ASP#30 - as a 10-pin LSSOP variant - does not include X1/X2 crystal oscillator pins. Crystal support is reserved for 16-pin and 20-pin RL78/G15 packages (e.g., R5F12048ASP#30). The R5F12018ASP#30 relies solely on its internal high-speed oscillator (1–16 MHz) and low-speed 15 kHz oscillator for system clocking and watchdog operation.
How many analog input channels does R5F12018ASP#30 provide, and what reference options are available?
The R5F12018ASP#30 integrates a 4-channel 8/10-bit A/D converter with inputs ANI0–ANI3. It supports both internal 0.815 V reference voltage and external reference via IVREF0 pin, enabling flexible analog measurement configurations without external voltage references in most use cases.
Can R5F12018ASP#30 perform in-system programming of its flash memory?
Yes, the R5F12018ASP#30 supports self-programming of both code and data flash memory via its on-chip debug interface using TOOL0/TOOLRxD/TOOLTxD pins. No external programmer is required - firmware updates and parameter writes can be performed in the final application using standard Renesas flash programming algorithms and the FSL (Flash Self-Programming Library).
What is the guaranteed operating temperature range for R5F12018ASP#30?
The R5F12018ASP#30 is qualified for industrial applications with a guaranteed operating ambient temperature range of −40°C to +105°C (G-grade). This rating is explicitly defined in the device ordering code suffix and validated per JEDEC JESD22-A104 and JESD22-A108 standards for extended temperature operation.
R5F12018ASP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G15
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 7
- 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 4x8/10b SAR
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12018ASP#30 FAQ
1.How can I place an order for R5F12018ASP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12018ASP#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 R5F12018ASP#30 reliable?
The price and inventory of R5F12018ASP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12018ASP#30 is usually 5 days.
3.What payment methods are accepted for R5F12018ASP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12018ASP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12018ASP#30?
R5F12018ASP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12018ASP#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 R5F12018ASP#30?
For technical support, including R5F12018ASP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12018ASP#30 requirements.
6.How does Aetrix verify that R5F12018ASP#30 is sourced from the original manufacturer or authorized distributors?
All R5F12018ASP#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 R5F12018ASP#30 meets industry standards.
7.What is the process for return or replacement of R5F12018ASP#30?
All R5F12018ASP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12018ASP#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 R5F12018ASP#30 part is unused and in its original packaging.
Return procedure for R5F12018ASP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F12018ASP#30 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
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…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
