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Renesas R5F10369ASM#55
- Part No.:
- R5F10369ASM#55
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10369ASM#55.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
R5F10369ASM#55 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller with 12 KB code flash, 768 B RAM, and no data flash memory, operating at 1.8–5.5 V across –40°C to +85°C for consumer applications. It delivers 31 DMIPS at 24 MHz, integrates an 8/10-bit 11-channel ADC, UART, CSI, and 4-channel 16-bit TAU timer, and targets low-power sensor interface and appliance control.
For engineers reviewing the R5F10369ASM#55 datasheet, R5F10369ASM#55 pinout, R5F10369ASM#55 application, or R5F10369ASM#55 equivalent, key selection criteria include its TSSOP-20 package, absence of DMA and data flash, ±5% high-speed on-chip oscillator accuracy over full temperature range, and support for single-supply operation down to 1.8 V in HALT/STOP/SNOOZE low-power modes.
Technical Context
The R5F10369ASM#55 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution time of 0.04167 µs at 24 MHz using the high-speed on-chip oscillator. Its memory map spans 1 MB address space, with on-chip RAM mapped at fixed locations and code flash organized in 1 KB blocks.
Peripheral integration includes one UART channel, one simplified SPI (CSI) channel, no simplified I²C, and a 12-bit interval timer plus watchdog timer. Power management features POR, LVD with 12 selectable thresholds, and dedicated low-speed on-chip oscillator (15 kHz) for watchdog operation independent of main clock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V logic without level shifters |
| Flash Memory | 12 KB code flash in 1 KB blocks - supports secure block erase prohibition and self-programming |
| RAM Size | 768 B - sufficient for real-time control stacks and small buffers in appliance firmware |
| ADC Resolution | 8/10-bit, 11-channel - provides configurable precision for analog sensor inputs including internal temp sensor |
| Timer Resources | 4-channel 16-bit TAU + 12-bit interval timer + watchdog - enables PWM generation, timing intervals, and system safety monitoring |
| Oscillator Accuracy | ±5.0% (–40°C to +85°C) - suitable for non-critical timing but requires external crystal for precise comms or RTC |
Pinout & Package
Package: 20-pin plastic TSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting serial interface clocking, buzzer tone generation, or analog sensing - configurable via PIOR |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART Receive / I²C Data / Debug Rx | Shared serial receive path for UART, SPI, and I²C; also serves debug communication during development |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / Debug Tx | Primary UART transmit and SPI output; dual-use for tool communication eliminates need for separate debug UART pins |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Enables edge-triggered capture, PWM output, or external interrupt sourcing - all on same physical pin |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Second timer I/O pair for complementary PWM or quadrature decoding with hardware input capture |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Dedicated reference voltage input for ADC - improves measurement stability when driven by external precision source |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Provides differential reference capability for ratiometric sensor measurements or offset calibration |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | General-purpose analog input with internal 1.45 V reference - usable for battery voltage monitoring or thermistor reads |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog channel supporting temperature sensor readout per datasheet specification |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports capacitive touch key scanning or debug data I/O - reduces BOM count in HMI designs |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Output / I²C Data / Timer I/O / Interrupt 1 | High-flexibility pin combining analog, serial, and timer functions - ideal for compact peripheral expansion |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer I/O | Enables second SPI or I²C interface alongside primary UART - expands connectivity without external bridge IC |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock / UART Transmit (remapped) | Alternate UART TX function allows flexible routing when primary P12 conflicts with layout constraints |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | Alternate UART RX function supports pin-restricted PCB layouts while retaining full UART functionality |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Input / Timer Input / Interrupt | Primary crystal oscillator input - must be connected to external resonator for precise timing or USB sync |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Output / External Clock / Timer Input / Interrupt | Crystal output or external clock input - enables use of external oscillator modules or clock distribution networks |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Input / Reset Input | Active-low reset pin with internal pull-up - accepts standard pushbutton reset or processor-controlled reset assertion |
| P137/INTP0 | Port 13 bit 7 / Interrupt 0 | Dedicated external interrupt input - supports fast wake-from-sleep response to user input or sensor events |
| VDD | Power Supply | Single 1.8–5.5 V supply - powers entire core, peripherals, and I/O; decoupling capacitor required per datasheet |
| VSS | Ground | Reference ground for analog and digital domains - requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current - extends battery life in portable sensors and remote controls |
| Multiple low-power modes | HALT, STOP, and SNOOZE modes with sub-μA retention - enables rapid wake-up while minimizing energy loss |
| On-chip debug function | Integrated debug interface eliminating need for external JTAG emulator - accelerates firmware bring-up and field updates |
| Programmable clock/buzzer output | PCLBUZ0 supports 2.44 kHz–10 MHz square wave generation - drives piezo buzzers or clocks external logic without timers |
| Different potential interface | I/O tolerates 1.8/2.5/3.3 V logic levels - simplifies interconnection with mixed-voltage subsystems |
| On-chip voltage detector (LVD) | 12-level programmable threshold - enables graceful shutdown or brown-out recovery before system failure |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in washing machine control board managing motor drive, water valve actuation, and user interface. IC Role / Device Role / Timing Role: Main system controller executing real-time motor commutation, ADC-based load sensing, and LED display timing. Use Value: 12 KB flash accommodates complex state machines and safety routines; 11-channel ADC monitors current, temperature, and water level simultaneously. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in factory settings. IC Role / Device Role / Timing Role: Low-power data acquisition node performing periodic sensor reads, local processing, and UART-based data transmission. Use Value: 63 μA/MHz active current and STOP mode enable multi-year battery life; built-in LVD prevents data corruption during voltage sag. |
| Consumer Remote Control | Smart Lighting Driver |
Use Scenario: IR remote with capacitive touch keys and LED feedback for HVAC systems. IC Role / Device Role / Timing Role: Touch interface manager and IR signal encoder with precise carrier frequency generation. Use Value: KR0–KR5 key return inputs reduce external components; PCLBUZ0 generates exact 38 kHz IR carrier without external oscillator. |
Use Scenario: Dimmable LED driver in commercial lighting fixtures requiring thermal protection and smooth PWM dimming. IC Role / Device Role / Timing Role: PWM generator and thermal monitor controlling MOSFET gate drive and fan speed. Use Value: 4-channel TAU timer supports independent dimming channels; on-chip temperature sensor enables automatic derating at high ambient temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASM#55 | Includes 2 KB data flash and DMA controller; ±1.0% oscillator accuracy; same pinout and package | Required for firmware-over-the-air updates or background data logging without host intervention | Select when persistent parameter storage or high-bandwidth peripheral transfers (e.g., ADC-to-memory) are needed |
| R5F10368ASM#55 | 4 KB code flash, 512 B RAM, identical peripheral set and low-power features | Suitable for simpler control tasks with smaller firmware footprint and lower memory requirements | Choose for cost-sensitive designs where 12 KB flash is excessive and memory headroom is not required |
Compared with R5F10269ASM#55, the R5F10369ASM#55 trades data flash and tighter oscillator tolerance for lower cost and reduced feature complexity; compared with R5F10368ASM#55, it provides 3× more flash and 50% more RAM for enhanced algorithm depth and buffer capacity in real-time control loops.
Availability
R5F10369ASM#55 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, consumer remote controls, and smart lighting drivers requiring stable component supply and long-term production continuity.
Supply support for R5F10369ASM#55 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive general-purpose control in appliances, sensors, and human-interface devices - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F10369ASM#55?
The R5F10369ASM#55 operates at up to 24 MHz using its high-speed on-chip oscillator and achieves 31 DMIPS at that frequency. This performance level is confirmed in the official Renesas datasheet R01DS0193EJ0250 and reflects integer computation throughput under typical conditions with compiler-optimized code.
Does the R5F10369ASM#55 include data flash memory, and how does it differ from R5F102xx variants?
No, the R5F10369ASM#55 does not include data flash memory - this is a defining distinction from R5F102xx parts, which integrate 2 KB of data flash. The R5F10369ASM#55 relies solely on its 12 KB code flash for both program storage and parameter retention, requiring software-managed wear leveling if EEPROM-like functionality is needed.
What low-power modes are supported by the R5F10369ASM#55, and what is the typical current draw in STOP mode?
The R5F10369ASM#55 supports HALT, STOP, and SNOOZE modes. In STOP mode with RAM retention and watchdog enabled, typical current draw is 0.52 μA at 3.0 V and 25°C. Full details appear in Section 1.1 "Features" and electrical characteristics tables of the R01DS0193EJ0250 datasheet.
Can the R5F10369ASM#55 drive standard 5 V logic interfaces directly, and which pins support higher voltage tolerance?
The R5F10369ASM#55 operates from 1.8–5.5 V but only two pins - P60 and P61 - are rated for 6 V tolerant N-ch open-drain operation. All other I/O pins are limited to VDD + 0.3 V (max 5.8 V). Direct 5 V logic interfacing is safe only when VDD = 5.0 V and signals remain within absolute maximum ratings; level shifters are recommended for robust 5 V compatibility.
What serial communication interfaces are integrated into the R5F10369ASM#55, and how many channels does each support?
The R5F10369ASM#55 integrates one UART channel, one simplified SPI (CSI) channel, and zero simplified I²C channels. It also includes one full I²C bus interface (IICA0). These interfaces share pins via peripheral I/O redirection (PIOR), allowing flexible assignment but not concurrent multi-channel operation beyond the stated counts.
R5F10369ASM#55 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 14
- Program Memory Size:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10369ASM#55 FAQ
1.How can I place an order for R5F10369ASM#55 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10369ASM#55 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 R5F10369ASM#55 reliable?
The price and inventory of R5F10369ASM#55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10369ASM#55 is usually 5 days.
3.What payment methods are accepted for R5F10369ASM#55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10369ASM#55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10369ASM#55?
R5F10369ASM#55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10369ASM#55 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 R5F10369ASM#55?
For technical support, including R5F10369ASM#55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10369ASM#55 requirements.
6.How does Aetrix verify that R5F10369ASM#55 is sourced from the original manufacturer or authorized distributors?
All R5F10369ASM#55 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 R5F10369ASM#55 meets industry standards.
7.What is the process for return or replacement of R5F10369ASM#55?
All R5F10369ASM#55 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10369ASM#55, 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 R5F10369ASM#55 part is unused and in its original packaging.
Return procedure for R5F10369ASM#55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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