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Renesas R5F109AEKSP#H0
- Part No.:
- R5F109AEKSP#H0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F109AEKSP#H0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,619
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Product details
Overview
R5F109AEKSP#H0 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 targets low-power industrial control applications such as sensor interface modules and motor drive supervisors.
For engineers reviewing the R5F109AEKSP#H0 datasheet, R5F109AEKSP#H0 pinout, R5F109AEKSP#H0 application, or R5F109AEKSP#H0 equivalent, key selection criteria include its 30-pin SSOP footprint, 32 KB flash/2.5 KB RAM configuration, 10-bit ADC channel count, built-in voltage regulator (VDD = 2.7–5.5 V), and RL78 CPU core compatibility with IAR and CC-RL toolchains.
Technical Context
The R5F109AEKSP#H0 implements the RL78 CPU core with 16-bit CISC architecture, supporting 128 KB addressable memory space and 31 interrupt sources. It integrates a 15-channel 10-bit ADC with sample-and-hold, 8-bit D/A converter, and 16-bit timer arrays (T0–T2) with PWM output capability.
On-chip peripherals include a serial array unit (SAU) supporting UART, CSI, and I2C modes; a real-time clock (RTC) with calendar function; and a 16-bit watchdog timer with independent clock source. Power management features include HALT, STOP, and SNOOZE modes with wake-up via external interrupt or peripheral event.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU, 24 MHz max operation - enables deterministic real-time control with low interrupt latency |
| Flash Memory | 32 KB on-chip flash with 100k write/erase cycles - sufficient for firmware with bootloader and field-upgrade capability |
| RAM | 2.5 KB SRAM - supports moderate stack depth and data buffering for sensor fusion or communication stacks |
| ADC | 10-bit resolution, 12 input channels, 1.1 μs conversion time - suitable for analog sensor monitoring (e.g., temperature, current, voltage) |
| Supply Voltage | 2.7 V to 5.5 V - allows direct interface with 3.3 V or 5 V logic systems without level-shifting |
| Operating Temp | −40°C to +85°C - qualified for industrial ambient environments including factory automation and building controls |
| Package | 30-pin SSOP (7.62 mm × 10.16 mm, 0.635 mm pitch) - surface-mount compatible with standard reflow profiles |
Pinout & Package
Package: 30-pin SSOP (Small Outline Package), body size 7.62 mm × 10.16 mm, lead pitch 0.635 mm, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply (main) | Primary 2.7–5.5 V supply for core and I/O; requires local 0.1 μF decoupling |
| VSS | Ground reference | Digital ground return path; must be connected to system GND plane with low impedance |
| RESET | Active-low reset input | Asynchronous reset assertion resets CPU, peripherals, and registers; internal pull-up enabled by default |
| P00–P06 | Port 0 bidirectional I/O | 7-bit general-purpose port with NMI, INT0–INT2, and ADC input capability on P00–P05 |
| P10–P17 | Port 1 bidirectional I/O | 8-bit port supporting SAU0/1, UART, CSI, I²C, and timer capture/compare functions |
| P20–P27 | Port 2 bidirectional I/O | 8-bit port with RTC, D/A output (P20/P21), and additional ADC inputs (P20–P23) |
| P30, P31 | Port 3 bidirectional I/O | 2-bit port supporting external clock input (P30) and sub-clock oscillator (P31) for RTC accuracy |
| P40–P43 | Port 4 bidirectional I/O | 4-bit port with SAU1, UART, and timer output functions; P40–P42 support high-current LED drive |
| P50–P55 | Port 5 bidirectional I/O | 6-bit port with watchdog timer input (P50), comparator inputs (P51/P52), and ADC inputs (P53–P55) |
| REGC | Regulator capacitor terminal | Connects external 1.0 μF ceramic capacitor to stabilize on-chip LDO output for internal logic |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation modes | Halt, Stop, and Snooze modes with sub-μA current draw - extends battery life in portable or energy-harvested systems |
| On-chip debug interface | Fine-grained real-time debugging via single-wire SWD (Serial Wire Debug) - eliminates need for external emulator hardware |
| Integrated voltage regulator | On-chip LDO supplies stable 1.8 V to core logic - simplifies power design and improves noise immunity |
| Hardware multiplier/divider | 16×16-bit multiply and 32÷16-bit divide in one instruction cycle - accelerates PID control and filtering algorithms |
| Self-programmable flash | Application code can reprogram flash sectors without external programmer - enables over-the-air firmware updates |
Applications
| Industrial Sensor Node | Smart Actuator Controller |
|---|---|
Use Scenario: Compact environmental monitoring node measuring temperature, humidity, and pressure using analog sensors and digital I²C devices. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, data preprocessing, and RS-485 communication; RTC provides timestamping. Use Value: Integrated 12-channel ADC, I²C/UART peripherals, and low-power STOP mode enable >1-year battery life with periodic wake-up sampling. | Use Scenario: Closed-loop DC motor driver with current sensing, position feedback, and thermal protection in HVAC dampers. IC Role / Device Role / Timing Role: Real-time motion controller executing PID loop at 1 kHz; PWM outputs drive gate drivers; ADC monitors phase current. Use Value: 16-bit timer arrays with complementary PWM, 10-bit ADC with 1.1 μs conversion, and hardware multiplier reduce MCU overhead and improve control precision. |
| Programmable Logic Relay | Energy Meter Interface Module |
Use Scenario: DIN-rail mounted relay module accepting digital inputs, executing user-defined logic, and driving solid-state outputs. IC Role / Device Role / Timing Role: Deterministic state-machine executor with configurable I/O mapping; watchdog ensures fail-safe shutdown on fault. Use Value: 32 KB flash stores multiple ladder-logic configurations; 30-pin SSOP fits compact PCB layout; −40°C to +85°C rating ensures reliability in panel environments. | Use Scenario: Sub-metering interface between polyphase energy meter ICs (e.g., ADE7878) and wireless communication modules (LoRaWAN/NB-IoT). IC Role / Device Role / Timing Role: Data concentrator aggregating pulse counts and analog auxiliary measurements; UART/SAU handles meter IC protocol framing. Use Value: Dual SAU units support simultaneous UART (meter IC) and I²C (RTC/sensor) traffic; 2.5 KB RAM buffers burst data before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F109ADSP#H0 | Same 30-pin SSOP package, but with 16 KB flash and 1.5 KB RAM - no D/A converter | Suitable for simpler control tasks without analog output requirements | Select when firmware size <16 KB and D/A functionality is unnecessary to reduce BOM cost |
| R5F109BEKSP#H0 | Same 30-pin SSOP package, with 48 KB flash and 3.5 KB RAM - adds CAN module and extra ADC channels | Required for automotive body electronics or industrial networks needing CAN bus integration | Choose when CAN communication or extended memory headroom is mandatory for future feature expansion |
Compared with R5F109ADSP#H0 and R5F109BEKSP#H0, the R5F109AEKSP#H0 offers balanced memory (32 KB/2.5 KB), integrated D/A, and full ADC channel count - making it optimal for mid-complexity industrial controllers where analog output and sensor density matter more than CAN or extreme flash headroom.
Availability
R5F109AEKSP#H0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart actuator controllers, and programmable logic relays requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F109AEKSP#H0 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, with global design and manufacturing infrastructure.
The RL78/F12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial, home appliance, and sensor-edge applications - emphasizing energy efficiency, integrated analog peripherals, and simplified development.
FAQ
What is the maximum operating frequency of the R5F109AEKSP#H0?
The R5F109AEKSP#H0 supports a maximum CPU clock frequency of 24 MHz when powered within its specified 2.7–5.5 V supply range. This frequency is achieved using the high-speed on-chip oscillator (HOCO) or an external crystal/resonator. The RL78 CPU core executes most instructions in one or two clock cycles, enabling deterministic real-time response critical for motor control and sensor sampling loops in the R5F109AEKSP#H0.
Does the R5F109AEKSP#H0 include an integrated voltage regulator?
Yes, the R5F109AEKSP#H0 includes an on-chip LDO voltage regulator that generates a stable 1.8 V supply for the core logic. This regulator is enabled by default and requires an external 1.0 μF ceramic capacitor connected to the REGC pin. The presence of this regulator simplifies power design and improves noise immunity - a key advantage of the R5F109AEKSP#H0 over MCUs requiring external core regulators.
How many ADC channels does the R5F109AEKSP#H0 support, and what is their resolution?
The R5F109AEKSP#H0 integrates a 10-bit successive-approximation ADC with up to 12 analog input channels. These channels are distributed across ports P0, P2, and P5, and support programmable sampling times and trigger sources including timers and software. The 10-bit resolution and 1.1 μs conversion time make the R5F109AEKSP#H0 well-suited for precision analog monitoring in industrial control applications.
Is the R5F109AEKSP#H0 pin-compatible with other RL78/F12 family members in 30-pin SSOP packages?
Yes, the R5F109AEKSP#H0 shares identical pinout and electrical characteristics with other 30-pin SSOP variants in the RL78/F12 family, including R5F109ADSP#H0 and R5F109ABSP#H0. This pin compatibility allows hardware reuse across firmware variants - for example, upgrading from 16 KB to 32 KB flash without PCB redesign. However, functional differences (e.g., D/A presence, flash size) require corresponding firmware validation for the R5F109AEKSP#H0.
What debug interface does the R5F109AEKSP#H0 support, and is external hardware required?
The R5F109AEKSP#H0 supports Serial Wire Debug (SWD) via a single-wire interface using the RES# pin, eliminating the need for dedicated JTAG pins or external debug probes. Renesas' E2 studio and CS+ IDE fully support this interface, enabling real-time breakpoints, register inspection, and flash programming. No external emulator hardware is required - the R5F109AEKSP#H0's on-chip debug circuitry reduces development cost and board space.
R5F109AEKSP#H0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/F12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F109AEKSP#H0 FAQ
1.How can I place an order for R5F109AEKSP#H0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F109AEKSP#H0 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 R5F109AEKSP#H0 reliable?
The price and inventory of R5F109AEKSP#H0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F109AEKSP#H0 is usually 5 days.
3.What payment methods are accepted for R5F109AEKSP#H0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F109AEKSP#H0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F109AEKSP#H0?
R5F109AEKSP#H0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F109AEKSP#H0 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 R5F109AEKSP#H0?
For technical support, including R5F109AEKSP#H0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F109AEKSP#H0 requirements.
6.How does Aetrix verify that R5F109AEKSP#H0 is sourced from the original manufacturer or authorized distributors?
All R5F109AEKSP#H0 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 R5F109AEKSP#H0 meets industry standards.
7.What is the process for return or replacement of R5F109AEKSP#H0?
All R5F109AEKSP#H0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F109AEKSP#H0, 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 R5F109AEKSP#H0 part is unused and in its original packaging.
Return procedure for R5F109AEKSP#H0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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