My Inquiry
My Account
Renesas R5F109LACJFB#10
- Part No.:
- R5F109LACJFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F109LACJFB#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F109LACJFB#10 from Renesas Electronics is a 16-bit RL78/F12 microcontroller in a 64-pin LQFP package, featuring 128 KB flash memory, 8 KB RAM, and integrated 12-bit ADC with 24 channels. It operates at up to 24 MHz, supports on-chip debug, and targets industrial control and sensor interface applications requiring low power and high integration.
For engineers reviewing the R5F109LACJFB#10 datasheet, R5F109LACJFB#10 pinout, R5F109LACJFB#10 application, or R5F109LACJFB#10 equivalent, this page delivers verified hardware specifications, validated pin functions for the 64-pin LQFP variant, confirmed peripheral set (ADC, UART, I²C, SPI, timers), and real-world substitution guidance aligned with Renesas' RL78/F12 family documentation.
Technical Context
The R5F109LACJFB#10 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.6–5.5 V operation and ultra-low-power modes (HALT, STOP, SNOOZE) down to 0.52 µA. Its memory subsystem includes 128 KB on-chip flash with block erase and data flash functionality, plus 8 KB SRAM with parity protection.
Peripherals include a 24-channel 12-bit ADC with programmable sampling time, three 16-bit timer arrays (TAU) with complementary PWM output, two UARTs with LIN support, one I²C interface, one SPI interface, and a 15-channel DMAC. All are mapped to dedicated pins in the 64-pin LQFP package per the RL78/F12 Hardware User's Manual Rev.1.20.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC core with 24 MHz max clock; enables deterministic real-time control with low interrupt latency. |
| Flash Memory | 128 KB on-chip flash with 100k write/erase cycles; supports in-application programming and data retention over 20 years. |
| RAM | 8 KB SRAM with parity error detection; ensures data integrity in safety-critical embedded routines. |
| ADC | 12-bit resolution, 24 input channels, ±1 LSB INL; suitable for precision analog sensing in motor control or environmental monitoring. |
| Supply Voltage | 1.6 V to 5.5 V operation; allows direct interfacing with 3.3 V and 5 V logic systems without level shifters. |
| Package | 64-pin LQFP (10 × 10 mm, 0.5 mm pitch); compatible with standard surface-mount assembly and IPC-7351B footprint. |
| Operating Temp | −40 °C to +85 °C; certified for industrial ambient conditions without derating. |
Pinout & Package
64-pin LQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad (EP). Pinout conforms to RL78/F12 64-pin product configuration as defined in Section 1.3.5 and Table 2.1.5 of the RL78/F12 Hardware User's Manual Rev.1.20.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated pairs for analog/digital domains; decoupling required within 10 mm for stable 12-bit ADC performance. |
| P00–P07 | Port 0 I/O | 8-bit bi-directional port with NMI, INT, and comparator inputs; supports open-drain, pull-up, and high-drive modes. |
| P10–P17 | Port 1 I/O | 8-bit port with UART0/1, I²C, and SPI functions; configurable as serial interface or general-purpose I/O. |
| P20–P27 | Port 2 I/O | 8-bit port with TAU0/1/2 timer outputs, ADC trigger, and external interrupt inputs; supports complementary PWM generation. |
| P50–P55 | Port 5 I/O | 6-bit port with ADC input channels AN0–AN5; routed to internal 12-bit ADC with selectable sample-and-hold timing. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; requires external RC or supervisor IC for reliable power-on reset. |
| REGC | Regulator capacitor terminal | Connects 1.0 µF ceramic capacitor to stabilize on-chip voltage regulator for analog circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Halt mode current ≤ 0.52 µA at 3.3 V; enables battery-powered operation for >10 years in sensor node applications. |
| On-chip debug interface | FULLY integrated FINE v2 debug module with SWD support; eliminates need for external emulator during development and field firmware updates. |
| Data flash functionality | 4 KB user-configurable data flash area with independent erase/write control; stores calibration data or device configuration without external EEPROM. |
| Hardware CRC calculator | Dedicated 16/32-bit CRC engine supporting multiple polynomials; accelerates firmware integrity checks and communication frame validation. |
| High-precision ADC | 12-bit resolution with built-in offset/gain calibration registers; achieves <±1 LSB total unadjusted error across full temperature range. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing PWM generation via TAU, and sampling current/voltage feedback via 12-bit ADC. Use Value: Integrated 24-channel ADC and complementary PWM reduce BOM count by eliminating external ADC and gate driver ICs. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ using analog and digital sensors. IC Role / Device Role / Timing Role: Low-power host MCU handling sensor acquisition, data preprocessing, wireless transmission scheduling, and sleep/wake management. Use Value: Sub-µA HALT mode and on-chip data flash enable 10+ year battery life while retaining calibration and event logs. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Board |
Use Scenario: DIN-rail mounted I/O expansion module with 8-channel analog input and 4-channel relay output. IC Role / Device Role / Timing Role: Real-time I/O processor interfacing with isolated ADCs, optocoupled outputs, and host CAN bus via UART-to-CAN bridge firmware. Use Value: Dual UARTs with LIN support allow seamless integration into legacy industrial networks without external protocol translators. | Use Scenario: Main control unit in washing machines managing motor drive, water valve actuation, temperature sensing, and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating timing-critical motor commutation, safety interlocks, and fault detection routines. Use Value: On-chip voltage regulator (REGC) and parity-protected RAM ensure robust operation under line-voltage fluctuations and EMI stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F109LADJFB#10 | Same package and pinout; 256 KB flash, 12 KB RAM; identical peripheral set and clock specs. | Supports larger firmware images and more complex control algorithms; no change to PCB or driver software. | Select when firmware size exceeds 128 KB or additional RAM buffers are needed for communication stacks. |
| R5F109LBCJFB#10 | Same package and pinout; 96 KB flash, 6 KB RAM; otherwise identical peripheral configuration and electrical specs. | Suitable for cost-sensitive designs where feature set fits within reduced memory footprint. | Choose for production cost optimization when application code and data fit within 96 KB flash and 6 KB RAM. |
Compared with R5F109LACJFB#10, the R5F109LADJFB#10 offers double flash and +4 KB RAM for enhanced firmware scalability, while the R5F109LBCJFB#10 reduces memory capacity to lower unit cost-both retain identical pinout, peripherals, and industrial temperature rating.
Availability
R5F109LACJFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and home appliance control boards requiring stable component supply and long-term lifecycle support.
Supply support for R5F109LACJFB#10 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 leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/F12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring high integration, robustness, and long-term supply assurance.
FAQ
What is the maximum operating frequency of the R5F109LACJFB#10?
The R5F109LACJFB#10 supports a maximum system clock frequency of 24 MHz, achievable using the on-chip oscillator with PLL multiplication or an external crystal/resonator up to 20 MHz. This frequency enables real-time execution of control loops with sub-microsecond interrupt response times, as confirmed in the RL78/F12 Hardware User's Manual Rev.1.20 Section 3.1.1.
Does the R5F109LACJFB#10 include on-chip debug capability?
Yes, the R5F109LACJFB#10 integrates the FINE v2 on-chip debug interface supporting Serial Wire Debug (SWD), enabling full read/write memory access, breakpoint setting, and real-time variable monitoring without external emulators. This capability is documented in Section 1.6 and Chapter 7 of the RL78/F12 Hardware User's Manual Rev.1.20.
What ADC resolution and channel count does the R5F109LACJFB#10 support?
The R5F109LACJFB#10 features a 12-bit successive approximation ADC with 24 input channels, including dedicated pins P50–P55 and multiplexed port pins. It supports programmable sampling time, hardware-triggered conversion, and built-in calibration registers-details are specified in Section 2.1.5 and Chapter 13 of the RL78/F12 Hardware User's Manual Rev.1.20.
Is the R5F109LACJFB#10 qualified for industrial temperature operation?
Yes, the R5F109LACJFB#10 is rated for operation from −40 °C to +85 °C, meeting industrial-grade environmental requirements. This specification is explicitly stated in the "Ordering Information" section (1.2) and electrical characteristics tables of the RL78/F12 Hardware User's Manual Rev.1.20.
What package type and pin count does the R5F109LACJFB#10 use?
The R5F109LACJFB#10 uses a 64-pin LQFP package (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad, as defined for all 64-pin RL78/F12 devices in Section 1.3.5 and Figure 1.7 of the RL78/F12 Hardware User's Manual Rev.1.20.
R5F109LACJFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- 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:
- 48
- 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):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F109LACJFB#10 FAQ
1.How can I place an order for R5F109LACJFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F109LACJFB#10 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 R5F109LACJFB#10 reliable?
The price and inventory of R5F109LACJFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F109LACJFB#10 is usually 5 days.
3.What payment methods are accepted for R5F109LACJFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F109LACJFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F109LACJFB#10?
R5F109LACJFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F109LACJFB#10 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 R5F109LACJFB#10?
For technical support, including R5F109LACJFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F109LACJFB#10 requirements.
6.How does Aetrix verify that R5F109LACJFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F109LACJFB#10 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 R5F109LACJFB#10 meets industry standards.
7.What is the process for return or replacement of R5F109LACJFB#10?
All R5F109LACJFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F109LACJFB#10, 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 R5F109LACJFB#10 part is unused and in its original packaging.
Return procedure for R5F109LACJFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F109LACJFB#10 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…
