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Renesas R5F109AAJSP#X0
- Part No.:
- R5F109AAJSP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F109AAJSP#X0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,388
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Product details
Overview
R5F109AAJSP#X0 from Renesas Electronics is a 16-bit RL78/F12 microcontroller in a 30-pin SSOP package, featuring 32 KB flash memory, 2.5 KB RAM, and integrated 10-bit ADC with 12 channels. It operates at up to 24 MHz, supports on-chip debug, and includes low-power modes (HALT, STOP) for battery-powered industrial sensors and motor control interfaces.
For engineers reviewing the R5F109AAJSP#X0 datasheet, R5F109AAJSP#X0 pinout, R5F109AAJSP#X0 application, or R5F109AAJSP#X0 equivalent, key selection criteria include its 30-pin SSOP footprint, 32 KB flash with EEPROM emulation, 10-bit ADC resolution and channel count, real-time clock (RTC) with calendar function, and support for LIN bus communication via on-chip UART with auto-baud detection.
Technical Context
The R5F109AAJSP#X0 implements the RL78 CPU core with 16-bit CISC architecture, supporting 128 KB addressable memory space and 31 interrupt sources including timer, ADC, and serial interface events. Its peripheral set includes a 16-bit multifunction timer (TM0–TM2), watchdog timer (WDT), and voltage monitor (LVD) with programmable threshold.
It integrates a 3-channel serial interface (UART/SIM/CSI) with independent baud rate generators, a 12-channel 10-bit ADC with sample-and-hold, and an on-chip oscillator frequency trimming circuit for ±1% accuracy across temperature and voltage. The device uses Renesas' proprietary "Simplified Flash" technology enabling 100,000 write/erase cycles and data retention of 20 years.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU, 24 MHz max operation - enables deterministic real-time control with sub-μs interrupt latency |
| Flash Memory | 32 KB on-chip flash with EEPROM emulation - supports firmware updates without external non-volatile storage |
| RAM | 2.5 KB SRAM - sufficient for RTOS task stacks and sensor data buffering in compact embedded nodes |
| ADC | 12-channel 10-bit successive approximation ADC - provides simultaneous sampling for multi-sensor monitoring (e.g., temperature, current, voltage) |
| Timers | Three 16-bit multifunction timers (TM0–TM2) with PWM output - supports motor phase control and precise timing for industrial I/O sequencing |
| Communication | UART/SIM/CSI with LIN-compliant auto-baud detection - eliminates need for external LIN transceiver in automotive body electronics |
| Power Modes | HALT (0.35 μA), STOP (0.23 μA), and ultra-low-power real-time clock mode - extends battery life in wireless sensor nodes beyond 5 years |
Pinout & Package
Package: 30-pin SSOP (7.62 mm × 10.16 mm, 0.635 mm pitch), RoHS-compliant, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART0 TX/RX, ADC0 inputs, and timer outputs |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs (INTP0–INTP3), comparator inputs, and RTC alarm output |
| P20–P25 | Port 2 bidirectional I/O | Includes LIN transceiver enable (LINEN), reset input (RESET), and voltage regulator control (REGC) |
| VDD, VSS | Power supply pins | Single 1.6–5.5 V supply - simplifies power design by eliminating separate analog/digital rails |
| CLKP, CLKN | Crystal oscillator inputs | Supports 1–20 MHz crystal or external clock source - enables precise timing for RTC and communication baud rates |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Fully functional single-wire debug (SWD) with real-time trace - enables in-system debugging without halting CPU execution |
| EEPROM emulation | 32 KB flash partitioned into 128-byte sectors with wear-leveling firmware support - replaces external EEPROM in cost-sensitive designs |
| Real-time clock (RTC) | Calendar mode with leap-year correction and alarm interrupt - maintains accurate timekeeping during STOP mode with <1 μA current draw |
| Low-voltage detection (LVD) | Programmable threshold (1.6–4.2 V in 0.1 V steps) with interrupt and reset options - prevents erratic behavior during brown-out conditions |
| Hardware LIN controller | UART with automatic sync-break detection and checksum generation - meets ISO 17987-4 requirements for automotive sub-networks |
Applications
| Industrial Sensor Node | Automotive Body Control |
|---|---|
Use Scenario: Compact, battery-powered environmental monitoring unit measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, data logging, and wireless transmission scheduling. Use Value: 2.5 KB RAM buffers 72 hours of 10-second interval readings; 32 KB flash stores firmware + calibration tables; RTC ensures timestamp accuracy across power cycles. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: LIN slave node executing commands from central body controller while providing local diagnostics. Use Value: Integrated LIN hardware reduces BOM cost vs. discrete transceiver + MCU; 12-channel ADC monitors motor current and switch status in real time. |
| Smart Appliance Motor Driver | Medical Diagnostic Handheld |
Use Scenario: Brushless DC motor control in cordless power tools with torque sensing and thermal protection. IC Role / Device Role / Timing Role: Real-time motion controller generating 3-phase PWM with dead-time insertion and current feedback loop closure. Use Value: Three 16-bit timers deliver synchronized PWM outputs with <100 ns jitter; 10-bit ADC samples current sense resistors at 1 MS/s for overcurrent shutdown within 2 μs. | Use Scenario: Portable blood glucose meter requiring precise analog front-end and secure firmware update capability. IC Role / Device Role / Timing Role: System-on-chip handling biosensor signal conditioning, display driving, and encrypted OTA updates. Use Value: On-chip LVD prevents measurement corruption during battery depletion; EEPROM emulation securely stores calibration coefficients and usage logs without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F109ABJSP#X0 | Same package and pinout; 48 KB flash, 4 KB RAM - no change in peripheral set or clock specs | Required when firmware size exceeds 32 KB or additional RAM needed for larger protocol stacks | Select if future firmware expansion headroom is required; identical layout and driver compatibility |
| RL78/G13 R5F100LEJSP#X0 | 30-pin SSOP, 128 KB flash, 8 KB RAM, same RL78 core but enhanced peripherals (USB, more timers) | Suitable for USB-connected devices or systems needing >32 KB code space and higher RAM bandwidth | Choose when USB host/device capability or extended timer resources are mandatory; requires minor software adaptation |
Compared with R5F109ABJSP#X0 and RL78/G13 R5F100LEJSP#X0, the R5F109AAJSP#X0 delivers optimal cost-performance balance for resource-constrained industrial and automotive LIN nodes where 32 KB flash and 2.5 KB RAM meet functional requirements without over-provisioning.
Availability
R5F109AAJSP#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, and smart appliance motor drivers requiring stable component supply and long-term production continuity.
Supply support for R5F109AAJSP#X0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT applications.
The RL78/F12 product line targets cost-sensitive, low-power embedded systems requiring high integration and automotive-grade reliability - specifically designed for LIN-based body electronics and sensor fusion nodes.
FAQ
What is the maximum operating frequency of the R5F109AAJSP#X0?
The R5F109AAJSP#X0 operates at a maximum CPU clock frequency of 24 MHz, achievable using the on-chip high-speed oscillator (HOCO) or an external crystal up to 20 MHz with PLL multiplication. This frequency enables real-time response for motor control loops and sensor sampling at ≤100 kHz intervals without external acceleration.
Does the R5F109AAJSP#X0 support in-circuit debugging?
Yes, the R5F109AAJSP#X0 supports full in-circuit debugging via a single-wire debug (SWD) interface compliant with ARM CoreSight standards. This allows real-time variable inspection, breakpoint setting, and flash programming without halting the CPU - critical for validating timing-critical functions in the R5F109AAJSP#X0 during development.
What package type and pin count does the R5F109AAJSP#X0 use?
The R5F109AAJSP#X0 uses a 30-pin SSOP (Shrink Small Outline Package) with 0.635 mm pitch and 7.62 mm × 10.16 mm body dimensions. This surface-mount package is optimized for automated assembly and provides mechanical stability in vibration-prone environments such as automotive under-hood applications and industrial machinery.
Can the R5F109AAJSP#X0 emulate EEPROM functionality?
Yes, the R5F109AAJSP#X0 supports EEPROM emulation using its 32 KB on-chip flash memory with built-in wear-leveling routines provided in Renesas' FDL (Flash Data Library). This enables reliable storage of calibration data, configuration parameters, and event logs in the R5F109AAJSP#X0 without requiring external non-volatile memory components.
Is the R5F109AAJSP#X0 qualified for automotive applications?
The R5F109AAJSP#X0 is rated for industrial temperature range (−40°C to +85°C) and complies with AEC-Q100 stress test qualifications for standard-grade devices. While not designated as "High Quality" per Renesas' internal classification, it is widely deployed in automotive body electronics (e.g., door modules, seat controls) where functional safety requirements are met through system-level design rather than component-level ASIL certification.
R5F109AAJSP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/F12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F109AAJSP#X0 FAQ
1.How can I place an order for R5F109AAJSP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F109AAJSP#X0 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 R5F109AAJSP#X0 reliable?
The price and inventory of R5F109AAJSP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F109AAJSP#X0 is usually 5 days.
3.What payment methods are accepted for R5F109AAJSP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F109AAJSP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F109AAJSP#X0?
R5F109AAJSP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F109AAJSP#X0 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 R5F109AAJSP#X0?
For technical support, including R5F109AAJSP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F109AAJSP#X0 requirements.
6.How does Aetrix verify that R5F109AAJSP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F109AAJSP#X0 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 R5F109AAJSP#X0 meets industry standards.
7.What is the process for return or replacement of R5F109AAJSP#X0?
All R5F109AAJSP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F109AAJSP#X0, 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 R5F109AAJSP#X0 part is unused and in its original packaging.
Return procedure for R5F109AAJSP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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