Renesas R5F10367ASM#75
- Part No.:
- R5F10367ASM#75
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10367ASM#75.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G12 4K 2
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10367ASM#75 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller with 4 KB code flash, 256 B RAM, and no data flash memory, operating at 1.8–5.5 V. It features a 24 MHz high-speed on-chip oscillator (±5% accuracy), 10-bit 8-channel ADC, 4-channel 16-bit timer, UART, and simplified SPI interface - deployed in battery-powered sensor nodes and industrial control panels requiring ultra-low power (63 μA/MHz) and compact TSSOP packaging.
For engineers reviewing the R5F10367ASM#75 datasheet, R5F10367ASM#75 pinout, R5F10367ASM#75 application, or R5F10367ASM#75 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use-value analysis for embedded design, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The R5F10367ASM#75 implements the RL78 CPU core with 3-stage CISC pipeline, 1 MB address space, and selectable instruction execution time (0.04167 μs @ 24 MHz). It supports HALT/STOP/SNOOZE low-power modes and uses an internal 15 kHz low-speed oscillator for watchdog operation.
Its peripheral set excludes DMA, CRC, RAM guard, SFR guard, and simplified I²C - distinguishing it from R5F102-series variants. Serial communication is limited to one UART channel and one simplified SPI (CSI) channel, with no I²C master capability and no data flash memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3/5 V logic without level shifters |
| Flash / RAM | 4 KB code flash + 256 B RAM - sufficient for firmware with basic protocol stacks and sensor processing |
| ADC | 10-bit resolution, 8 input channels, internal 1.45 V reference - supports analog sensing without external reference |
| Timers | 4-channel 16-bit TAU + 1-channel 12-bit interval timer + 1-channel window watchdog - enables PWM generation and system supervision |
| Serial Interfaces | 1 UART + 1 simplified SPI (CSI) - supports host MCU communication and peripheral bridging, but no I²C or multi-channel UART |
| Power Consumption | 63 μA/MHz in active mode - reduces battery drain in always-on edge devices |
Pinout & Package
Package: 20-pin TSSOP (PTSP0020JI-A), 4.4 × 6.5 mm, 0.65-mm pitch, lead-free, RoHS-compliant.
| 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 clock output, SPI master clock, or analog sensing - configurable via PIOR register |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART Receive / I²C Data / Debug RX | Shared UART receive and SPI input - enables dual-mode serial debug or peripheral interface |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / Debug TX | Combines UART transmit and SPI output - simplifies PCB routing for single-wire debug or sensor interface |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt Pin 2 | Timer capture/compare and interrupt source - supports encoder input or pulse-width measurement |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt Pin 3 | Dual timer I/O with interrupt capability - enables dual-edge timing or PWM complementary outputs |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Provides dedicated AVREFP connection - improves ADC accuracy when external reference is not used |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Completes differential reference pair - enables ratiometric or offset-compensated analog measurements |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | General-purpose analog input - usable for temperature, voltage, or current sensing |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input - expands sensor count without external MUX |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports key-scan matrix input or debug tool connection - eliminates need for external pull-up resistors |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Output / I²C Data / Timer I/O / Interrupt | Highly multiplexed pin - enables SPI slave, timer-based PWM, or analog monitoring in resource-constrained layouts |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer I/O | Secondary SPI/I²C clock with timer function - allows dual synchronous peripheral control |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock / UART Transmit (remapped) | N-ch open-drain I/O with 6 V tolerance - safe for mixed-voltage I²C bus interfacing |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | N-ch open-drain I/O with 6 V tolerance - supports standard I²C pull-up to 5 V |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Input / Timer Input / Interrupt | Primary crystal oscillator input - requires external 1–20 MHz resonator for precise timing |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Output / External Clock / Timer Input / Interrupt | Crystal oscillator output or external clock input - enables bypass mode or precision clock injection |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Input / Reset Input | Active-low reset pin with internal pull-up - ensures reliable power-on initialization without external RC network |
| P137/INTP0 | Port 13 bit 7 / Interrupt Pin 0 | Dedicated external interrupt input - supports fast wake-up from STOP mode on event trigger |
| VDD | Power Supply | Single 1.8–5.5 V supply - eliminates need for multiple regulators in low-cost designs |
| VSS | Ground | Reference ground for analog and digital domains - must be connected with low-impedance path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables >5-year battery life in coin-cell-powered IoT sensors |
| On-chip high-speed oscillator | 24 MHz ±5% accuracy eliminates external crystal for cost-sensitive applications where timing tolerance <±5% is acceptable |
| Hardware UART + SPI | Independent UART and CSI peripherals allow simultaneous host communication and sensor data acquisition without software bit-banging |
| 10-bit 8-channel ADC | Integrated temperature sensor and internal 1.45 V reference reduce BOM count for environmental monitoring systems |
| Multiple low-power modes | HALT/STOP/SNOOZE modes with sub-μA retention current support rapid wake-up for event-driven operation |
| On-chip debug interface | Single-pin TOOL0/TOOLRxD/TOOLTxD enables in-circuit programming and real-time debugging without JTAG header footprint |
Applications
| Smart Thermostat Control | Industrial Sensor Node |
|---|---|
Use Scenario: Local temperature/humidity regulation with display, keypad, and wireless uplink. IC Role / Device Role / Timing Role: Main controller managing sensor reads, PID loop execution, UI updates, and UART-based radio module command interface. Use Value: 4 KB flash accommodates closed-loop control + BLE/LoRa stack; 8-channel ADC directly interfaces thermistors, humidity ICs, and voltage monitors without external MUX. |
Use Scenario: Battery-powered vibration/temperature node in factory machinery with periodic telemetry upload. IC Role / Device Role / Timing Role: Edge processor sampling analog accelerometers and thermistors, then transmitting via UART to gateway. Use Value: 63 μA/MHz active current + STOP mode with 0.23 μA retention extends 2xAA battery life beyond 3 years; built-in 12-bit interval timer triggers precise sampling intervals. |
| Home Appliance Motor Driver | Medical Wearable Monitor |
Use Scenario: Fan speed control and fault detection in HVAC blower units using hall-effect feedback. IC Role / Device Role / Timing Role: Dedicated motor supervisor handling PWM generation, overcurrent detection, and thermal shutdown sequencing. Use Value: 4-channel 16-bit TAU provides independent PWM outputs for multi-phase drive; TI00/TO00 pins enable hardware-based commutation timing with <1 μs jitter. |
Use Scenario: Disposable ECG patch with analog front-end, signal conditioning, and Bluetooth LE transmission. IC Role / Device Role / Timing Role: Signal acquisition controller digitizing bio-potential inputs and formatting packets for wireless transmission. Use Value: 10-bit ADC with internal reference achieves ±1.5% full-scale accuracy for clinical-grade signal fidelity; 256 B RAM holds 2 sec of raw waveform before compression. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10267ASM#75 | Includes 2 KB data flash, DMA, CRC, RAM/SFR guard, ±1% oscillator accuracy, and simplified I²C - but same 4 KB code flash and 256 B RAM | Required for field-upgradable firmware or secure boot; supports I²C sensor networks and robust error checking | Select when data logging, secure firmware update, or I²C peripheral expansion is mandatory - adds ~$0.15 cost and slightly higher power in active mode |
| R5F10368ASM#75 | Same RL78/G12 family, 8 KB code flash, 512 B RAM, identical peripherals and pinout - no data flash or DMA | Suitable for larger firmware images (e.g., Modbus RTU + diagnostics), but requires more PCB layout space for additional code storage | Choose when firmware size exceeds 4 KB but data flash is unnecessary - maintains identical power profile and interface compatibility |
Compared with R5F10367ASM#75, R5F10267ASM#75 adds critical safety and upgrade capabilities at the cost of tighter oscillator tolerance and higher BOM complexity, while R5F10368ASM#75 trades flash headroom for zero functional change - making both viable alternatives depending on firmware scalability and security requirements.
Availability
R5F10367ASM#75 is available at Aetrix Electronics and suitable for smart thermostat control, industrial sensor nodes, home appliance motor drivers, and medical wearable monitors requiring stable component supply across automotive-qualified temperature ranges (–40°C to +85°C).
Supply support for R5F10367ASM#75 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 infrastructure markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated embedded systems - balancing performance, integration, and energy efficiency for consumer and industrial edge devices.
FAQ
What is the maximum operating frequency and oscillator accuracy of the R5F10367ASM#75?
The R5F10367ASM#75 supports a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator, with accuracy specified at ±5.0% over the full industrial temperature range (–40°C to +85°C). This tolerance is looser than the R5F102-series (±1.0%), reflecting its target use in cost-optimized applications where external crystal is omitted. The device also supports external crystal oscillation up to 20 MHz for higher precision timing when required.
Does the R5F10367ASM#75 include data flash memory?
No, the R5F10367ASM#75 does not include data flash memory. As confirmed in Renesas documentation (R01DS0193EJ0250, Section 1.3.1), R5F103-series devices omit the 2 KB data flash found in R5F102-series counterparts. This means firmware must store configuration or calibration data in code flash (with wear-leveling overhead) or external EEPROM/FRAM - a deliberate trade-off for lower cost and reduced die area in the R5F10367ASM#75.
Which serial interfaces are supported by the R5F10367ASM#75?
The R5F10367ASM#75 supports one UART channel and one simplified SPI (CSI) channel. It does not include simplified I²C or standard I²C master functionality - a key differentiator from R5F102-series parts. The UART and CSI operate independently, enabling concurrent communication with a host MCU and a peripheral sensor, respectively. Pins P60/P61 can be remapped for I²C-like signaling but lack native I²C protocol engine support.
What are the low-power modes available on the R5F10367ASM#75?
The R5F10367ASM#75 offers HALT, STOP, and SNOOZE low-power modes. HALT stops the CPU while preserving RAM and peripheral states; STOP shuts down most clocks for sub-μA retention; SNOOZE enables background serial operation during low-power sleep. All modes are entered via software instruction and support wake-up via external interrupt, timer match, or UART activity - critical for extending battery life in intermittent-sensing applications using the R5F10367ASM#75.
Is the R5F10367ASM#75 pin-compatible with other RL78/G12 20-pin variants?
Yes, the R5F10367ASM#75 shares identical 20-pin TSSOP packaging and pinout with all RL78/G12 20-pin variants including R5F1026x, R5F1036x, and R5F10368ASM#75. This allows drop-in replacement within the same package family, though functional differences (e.g., presence of data flash, DMA, oscillator accuracy) require firmware validation. Pin mapping is fixed per datasheet Figure 1-4, and no PCB redesign is needed when substituting within the 20-pin TSSOP footprint.
R5F10367ASM#75 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- 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:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 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:
R5F10367ASM#75 FAQ
1.How can I place an order for R5F10367ASM#75 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10367ASM#75 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 R5F10367ASM#75 reliable?
The price and inventory of R5F10367ASM#75 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10367ASM#75 is usually 5 days.
3.What payment methods are accepted for R5F10367ASM#75?
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Once your R5F10367ASM#75 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 R5F10367ASM#75?
For technical support, including R5F10367ASM#75 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10367ASM#75 requirements.
6.How does Aetrix verify that R5F10367ASM#75 is sourced from the original manufacturer or authorized distributors?
All R5F10367ASM#75 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 R5F10367ASM#75 meets industry standards.
7.What is the process for return or replacement of R5F10367ASM#75?
All R5F10367ASM#75 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10367ASM#75, 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 R5F10367ASM#75 part is unused and in its original packaging.
Return procedure for R5F10367ASM#75:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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