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Renesas R5F109AEJSP#H0
- Part No.:
- R5F109AEJSP#H0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F109AEJSP#H0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,660
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Product details
Overview
R5F109AEJSP#H0 from Renesas Electronics is a 16-bit RL78/F12 microcontroller in a 30-pin SSOP package, featuring 64 KB flash memory, 4 KB RAM, and integrated 12-bit ADC with 12 channels. It operates at up to 24 MHz, supports on-chip debug, and includes hardware multiplier/divider for real-time control in industrial sensor nodes.
For engineers reviewing the R5F109AEJSP#H0 datasheet, R5F109AEJSP#H0 pinout, R5F109AEJSP#H0 application, or R5F109AEJSP#H0 equivalent, key selection criteria include its 30-pin SSOP footprint, 64 KB flash with EEPROM emulation, 12-bit ADC resolution with sample-and-hold, low-power SNOOZE mode (0.35 µA), and support for LIN bus via UART with automatic sync detection.
Technical Context
The R5F109AEJSP#H0 implements the RL78 CPU core with 3-stage pipeline and CISC architecture optimized for ultra-low-power embedded control. It integrates a 12-bit successive-approximation ADC with internal reference (1.45 V), 8-bit D/A converter, and 16-bit timer arrays (T0–T3) supporting PWM generation and input capture.
On-chip peripherals include a LIN controller (UART-based with break detection), I²C-compatible interface, SPI, and 10-bit interval timer. Power management features include three low-power modes (HALT, STOP, SNOOZE), voltage monitoring (LVD), and on-chip oscillator trimming for ±1% accuracy across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1.25 DMIPS/MHz performance |
| Flash Memory | 64 KB with EEPROM emulation, 100,000 write/erase cycles, and 20-year data retention |
| RAM Size | 4 KB SRAM with retention capability in STOP mode |
| ADC Resolution | 12-bit SAR ADC with 12 input channels, 1.1 µs conversion time, and built-in sample-and-hold |
| Operating Voltage | 1.6 V to 5.5 V - enables direct battery operation (e.g., 2×AA or Li-ion) without external regulators |
| Max Clock Frequency | 24 MHz using high-speed on-chip oscillator (HOCO) or external crystal up to 20 MHz |
| Low-Power Mode Current | 0.35 µA in SNOOZE mode with RTC and 1KB RAM retention - suitable for battery-powered metering |
Pinout & Package
Package: 30-pin SSOP (7.62 mm × 10.16 mm, 0.635 mm pitch), JEDEC MS-012AC compliant, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD (core/analog), VSS (digital ground); decoupling required per Renesas layout guidelines |
| RESET | Active-low reset input | Accepts external reset signal or internal LVD-triggered reset; internal pull-up enabled by default |
| P00–P07 | Port 0 bidirectional I/O | 8-bit port with NMI, INT, and analog input capability on P00–P03; configurable as open-drain or CMOS |
| P10–P17 | Port 1 bidirectional I/O | 8-bit port supporting UART0 (P10/P11), I²C (P12/P13), and LIN (P14) functions |
| P20–P27 | Port 2 bidirectional I/O | 8-bit port with ADC input channels (P20–P23), comparator inputs (P24/P25), and timer outputs (P26/P27) |
| REGC | Regulator capacitor terminal | Connects 1 µF ceramic capacitor to stabilize on-chip LDO output for analog circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Multiplier/Divider | 16×16-bit multiply and 32÷16-bit divide in single cycle - accelerates PID loop execution in motor control |
| EEPROM Emulation | Uses flash sectors with wear-leveling firmware to emulate 2 KB EEPROM - eliminates external EEPROM chip |
| LIN Bus Support | UART0 with automatic sync field detection and checksum generation - meets LIN 2.2A physical layer timing |
| On-Chip Debug Interface | FULLY integrated FINE v3 debug module with SWD interface - enables real-time trace and breakpoint debugging |
| Voltage Monitoring | Programmable LVD with 4 selectable thresholds (1.9–4.2 V) and interrupt capability - prevents brown-out corruption |
Applications
| Smart Thermostats | Industrial Motor Drives |
|---|---|
Use Scenario: Battery-powered HVAC control unit with temperature/humidity sensing and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, PID regulation, display, and sub-GHz RF wake-up sequencing. Use Value: 0.35 µA SNOOZE mode extends 2×AA battery life beyond 5 years; 12-bit ADC ensures ±0.1°C thermal measurement accuracy. | Use Scenario: Compact BLDC motor driver for conveyor systems with hall-effect feedback and current sensing. IC Role / Device Role / Timing Role: Real-time motion controller executing commutation logic, fault protection, and LIN diagnostics communication. Use Value: Hardware multiplier reduces PID loop latency to <1.2 µs; integrated 12-bit ADC samples phase currents at 100 kSPS. |
| Energy Meters | Automotive Body Controllers |
Use Scenario: DIN-rail mounted electricity meter with metrology IC interface and tamper detection. IC Role / Device Role / Timing Role: System manager handling pulse counting, LCD refresh, secure storage, and optical IR communication. Use Value: 64 KB flash stores dual firmware images for A/B update; EEPROM emulation retains tariff tables and event logs. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN slave functionality. IC Role / Device Role / Timing Role: LIN-compliant slave node interpreting master commands and driving DC motors via external H-bridges. Use Value: UART0 with LIN auto-sync detects break fields within ±1.5 bit time - meets ISO 17987-4 timing tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F109ADJSP#H0 | Same package and pinout; reduced flash (48 KB) and RAM (3 KB); no D/A converter | Suitable for cost-sensitive sensor nodes without analog output requirements | Select when firmware size ≤45 KB and DAC functionality is unnecessary |
| R5F109BEJSP#H0 | Same 30-pin SSOP package; increased flash (96 KB) and RAM (6 KB); adds CAN module | Required for automotive body networks needing CAN FD message routing alongside LIN | Choose when CAN bus integration and extended code space justify higher BOM cost |
Compared with R5F109ADJSP#H0 and R5F109BEJSP#H0, the R5F109AEJSP#H0 delivers optimal balance of flash capacity, analog integration (ADC+DAC), and LIN compliance for mid-tier industrial control - avoiding over-specification while retaining upgrade path to CAN via pin-compatible variant.
Availability
R5F109AEJSP#H0 is available at Aetrix Electronics and suitable for smart thermostats, industrial motor drives, and energy meters requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F109AEJSP#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, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/F12 product line targets ultra-low-power embedded control applications requiring high integration, robust peripheral sets, and long-term supply stability - especially in battery-operated and safety-critical industrial equipment.
FAQ
What is the maximum operating frequency of the R5F109AEJSP#H0?
The R5F109AEJSP#H0 supports a maximum CPU clock frequency of 24 MHz using the high-speed on-chip oscillator (HOCO). When driven by an external crystal or resonator, it operates up to 20 MHz. The HOCO provides ±1% accuracy after trimming, enabling reliable timing without external components in many applications. This frequency directly determines instruction throughput and peripheral timing margins in the R5F109AEJSP#H0 design.
Does the R5F109AEJSP#H0 include hardware debug support?
Yes, the R5F109AEJSP#H0 integrates the FINE v3 on-chip debug interface with Serial Wire Debug (SWD) support. It enables full real-time debugging including breakpoints, watchpoints, memory inspection, and trace without halting system operation. This capability is accessible via standard Renesas E2 or E2 Lite debuggers and is fully supported in CS+ and e2 studio IDEs for the R5F109AEJSP#H0 development workflow.
Can the R5F109AEJSP#H0 operate from a single 3.3 V supply?
Yes, the R5F109AEJSP#H0 operates across a wide voltage range of 1.6 V to 5.5 V, making 3.3 V a fully supported and commonly used supply voltage. At 3.3 V, it achieves full 24 MHz operation with all peripherals active, and the internal LDO regulator maintains stable analog circuitry. Decoupling capacitors (0.1 µF + 1 µF) must be placed near VDD and REGC pins per Renesas layout recommendations for the R5F109AEJSP#H0.
How many ADC channels does the R5F109AEJSP#H0 support, and what is their resolution?
The R5F109AEJSP#H0 includes a 12-bit successive-approximation ADC with 12 selectable input channels (P20–P23, P30–P33, P40–P43). It supports programmable sampling time, internal reference (1.45 V), and hardware trigger sources including timers and external events. The 12-bit resolution enables precise measurements such as ±0.1°C temperature sensing or 0.01% current monitoring in R5F109AEJSP#H0-based designs.
Is the R5F109AEJSP#H0 qualified for automotive applications?
No, the R5F109AEJSP#H0 is rated for Standard quality grade per Renesas documentation and intended for industrial, consumer, and office equipment - not automotive safety-critical systems. It lacks AEC-Q100 qualification and does not meet the temperature range (-40°C to +125°C) or failure-in-time (FIT) requirements for automotive use. For automotive body control modules, Renesas recommends the RL78/F13 or RH850 families instead of the R5F109AEJSP#H0.
R5F109AEJSP#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):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F109AEJSP#H0 FAQ
1.How can I place an order for R5F109AEJSP#H0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F109AEJSP#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 R5F109AEJSP#H0 reliable?
The price and inventory of R5F109AEJSP#H0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F109AEJSP#H0 is usually 5 days.
3.What payment methods are accepted for R5F109AEJSP#H0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F109AEJSP#H0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F109AEJSP#H0?
R5F109AEJSP#H0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F109AEJSP#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 R5F109AEJSP#H0?
For technical support, including R5F109AEJSP#H0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F109AEJSP#H0 requirements.
6.How does Aetrix verify that R5F109AEJSP#H0 is sourced from the original manufacturer or authorized distributors?
All R5F109AEJSP#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 R5F109AEJSP#H0 meets industry standards.
7.What is the process for return or replacement of R5F109AEJSP#H0?
All R5F109AEJSP#H0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F109AEJSP#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 R5F109AEJSP#H0 part is unused and in its original packaging.
Return procedure for R5F109AEJSP#H0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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