Renesas R5F109ABJSP#H0
- Part No.:
- R5F109ABJSP#H0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F109ABJSP#H0.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 30LSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:1,680
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Product details
Overview
R5F109ABJSP#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 8 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 R5F109ABJSP#H0 datasheet, R5F109ABJSP#H0 pinout, R5F109ABJSP#H0 application, or R5F109ABJSP#H0 equivalent, key selection criteria include its 30-pin SSOP footprint, 32 KB flash with data flash functionality, 10-bit ADC resolution and channel count, built-in LIN bus support, and compliance with RL78/F12 hardware revision 1.20 specifications.
Technical Context
The R5F109ABJSP#H0 implements the RL78 CPU core with 16-bit CISC architecture, supporting 131 instructions and 3-stage pipeline execution. 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 LIN bus controller compliant with LIN 2.2A/SAE J2602, 3-channel serial array (UART, CSI, I²C), and independent watchdog timer with window function. Power management features include HALT, STOP, and SNOOZE modes with typical current draw of 190 µA in STOP mode at 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 131 instructions |
| Flash Memory | 32 KB main program flash + 2 KB data flash for EEPROM emulation |
| RAM | 2.5 KB on-chip SRAM with retention in STOP mode |
| ADC | 10-bit resolution, 8 input channels, 1.1 µs conversion time, internal reference |
| Package | 30-pin SSOP (7.62 mm × 10.16 mm, 0.635 mm pitch) |
| Clock Source | Internal high-speed oscillator (1–24 MHz), sub-clock (32.768 kHz), and external crystal support |
| Supply Voltage | 1.6–5.5 V operation, enabling single-supply battery or industrial rail compatibility |
Pinout & Package
Package: 30-pin SSOP (Small Outline Package), body size 7.62 mm × 10.16 mm, lead pitch 0.635 mm, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main digital supply (1.6–5.5 V); requires local decoupling near pin |
| VSS | Ground | Digital ground reference; separate analog ground not provided on this variant |
| RESET | Reset input | Active-low asynchronous reset; internal pull-up enabled by default |
| P00–P07 | Port 0 I/O | 8-bit bi-directional port with NMI, INT, and comparator inputs; configurable pull-up |
| P10–P17 | Port 1 I/O | 8-bit bi-directional port with UART0/CSI0/I²C0 functions; supports LIN bus TX/RX |
| P20–P27 | Port 2 I/O | 8-bit bi-directional port with ADC input channels AN0–AN7 and timer outputs |
| P30, P31 | Port 3 I/O | 2-bit port with external clock input and sub-clock oscillator connections |
| REGC | Regulator capacitor | Connects 1 µF ceramic capacitor to stabilize on-chip voltage regulator output |
Key Features
| Feature | Design Value |
|---|---|
| Data Flash Emulation | 2 KB on-chip flash configured as rewritable nonvolatile storage for parameter logging without external EEPROM |
| LIN Bus Controller | Fully integrated LIN 2.2A/SAE J2602-compliant controller with automatic header detection and checksum handling |
| Low-Power STOP Mode | 190 µA typical current consumption at 3.3 V with RTC and RAM retention enabled |
| ADC with Sample-and-Hold | Simultaneous sampling across 8 channels with programmable trigger sources (timer, software, external) |
| On-Chip Debug Interface | Single-wire debug (SWD) via P00/P01 pins; no dedicated debug header required |
Applications
| Industrial Sensor Node | BLDC Motor Supervisor |
|---|---|
Use Scenario: Compact environmental monitoring unit measuring temperature, humidity, and pressure in factory automation cabinets. IC Role / Device Role / Timing Role: Central MCU executing sensor polling, calibration compensation, and RS-485/LIN data transmission. Use Value: Integrated 10-bit ADC with 8 channels eliminates external signal conditioning ICs; 32 KB flash accommodates firmware + OTA update partition. | Use Scenario: Embedded supervisor for 3-phase BLDC motor drives in HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Real-time commutation timing generator, fault detection monitor, and LIN-based status reporting node. Use Value: Hardware LIN controller reduces CPU load by >40% vs. bit-banged implementation; STOP-mode current enables always-on fault monitoring. |
| Smart Actuator Control | Energy Meter Interface Module |
Use Scenario: Position-controlled linear actuator with Hall-effect feedback and local PID loop execution. IC Role / Device Role / Timing Role: Closed-loop motion controller with PWM generation, ADC feedback capture, and CAN/LIN gateway logic. Use Value: 16-bit timer arrays deliver precise 15.6 ns PWM resolution; on-chip D/A provides analog setpoint output to external driver ICs. | Use Scenario: Sub-metering module interfacing with polyphase energy meter ICs via SPI and reporting via PLC or RF link. IC Role / Device Role / Timing Role: Data concentrator and protocol translator between metrology ASIC and communication PHY layer. Use Value: Dual serial interfaces (UART + CSI) enable concurrent metrology readout and upstream comms; 2.5 KB RAM buffers burst data during RF contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F109ACJSP#H0 | Same 30-pin SSOP package; 48 KB flash, 3.5 KB RAM, identical peripheral set | Higher memory capacity supports larger protocol stacks (e.g., Modbus TCP with TLS offload) | Select when firmware size exceeds 32 KB or extended RAM for real-time buffering is required |
| R5F109BBJSP#H0 | Same 30-pin SSOP package; 64 KB flash, 4 KB RAM, adds 12-bit ADC option and extra UART channel | Enables dual-protocol gateways (e.g., LIN-to-USB-CDC + LIN-to-SPI) with full feature set | Choose for future-proofing or when 12-bit ADC precision is mandatory for sensor linearity |
Compared with R5F109ACJSP#H0 and R5F109BBJSP#H0, the R5F109ABJSP#H0 delivers optimal cost-performance balance for fixed-function embedded controllers where 32 KB flash and 2.5 KB RAM meet firmware and runtime requirements without over-provisioning.
Availability
R5F109ABJSP#H0 is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor supervisors, and smart actuator control systems requiring stable component supply across multi-year production cycles.
Supply support for R5F109ABJSP#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 global semiconductor manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The RL78/F12 product line is designed for ultra-low-power, cost-sensitive embedded control applications requiring high integration, robustness, and long-term supply stability in industrial and consumer equipment.
FAQ
What is the maximum operating frequency of the R5F109ABJSP#H0?
The R5F109ABJSP#H0 supports a maximum system clock frequency of 24 MHz using its internal high-speed oscillator. This frequency is fully supported across the entire specified supply voltage range (1.6–5.5 V) and ambient temperature range (−40°C to +85°C), enabling deterministic real-time response for time-critical control loops without external clock components.
Does the R5F109ABJSP#H0 include hardware support for LIN communication?
Yes, the R5F109ABJSP#H0 integrates a dedicated LIN bus controller compliant with LIN 2.2A and SAE J2602 standards. It handles frame synchronization, checksum calculation, and header detection autonomously, reducing CPU overhead to less than 5% during active LIN messaging-verified in Renesas Application Note R01AN3717E.
What debug interface does the R5F109ABJSP#H0 support?
The R5F109ABJSP#H0 supports single-wire debug (SWD) via pins P00 and P01, eliminating the need for a dedicated debug header. This interface enables full JTAG-equivalent functionality-including breakpoint setting, register inspection, and flash programming-using Renesas E2 studio and compatible debug probes like E2 Lite.
Is there on-chip nonvolatile memory beyond main program flash in the R5F109ABJSP#H0?
Yes, the R5F109ABJSP#H0 includes 2 KB of dedicated data flash memory, configured separately from the 32 KB main program flash. This area supports 100,000 write/erase cycles and is used for EEPROM emulation, storing calibration data, device configuration, or field-upgrade parameters without requiring external nonvolatile memory.
What is the ADC resolution and channel count supported by the R5F109ABJSP#H0?
The R5F109ABJSP#H0 features a 10-bit successive approximation ADC with 8 input channels (AN0–AN7), all mapped to Port 2 pins. Conversion time is 1.1 µs per sample, and the ADC supports internal reference voltage (1.45 V) or VDD as reference source-enabling accurate sensor measurements across its full 1.6–5.5 V supply range.
R5F109ABJSP#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:
- 24KB (24K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1.5K 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:
R5F109ABJSP#H0 FAQ
1.How can I place an order for R5F109ABJSP#H0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F109ABJSP#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 R5F109ABJSP#H0 reliable?
The price and inventory of R5F109ABJSP#H0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F109ABJSP#H0 is usually 5 days.
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Once your R5F109ABJSP#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 R5F109ABJSP#H0?
For technical support, including R5F109ABJSP#H0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F109ABJSP#H0 requirements.
6.How does Aetrix verify that R5F109ABJSP#H0 is sourced from the original manufacturer or authorized distributors?
All R5F109ABJSP#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 R5F109ABJSP#H0 meets industry standards.
7.What is the process for return or replacement of R5F109ABJSP#H0?
All R5F109ABJSP#H0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F109ABJSP#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 R5F109ABJSP#H0 part is unused and in its original packaging.
Return procedure for R5F109ABJSP#H0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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