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Renesas R5F10268ASM#75
- Part No.:
- R5F10268ASM#75
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10268ASM#75.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G12 8K 2
- Quantity:
- Payment:
- Shipping:
Inventory:4,211
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Product details
Overview
R5F10268ASM#75 from Renesas Electronics is a 20-pin TSSOP-packaged RL78/G12 16-bit microcontroller with 8 KB code flash, 2 KB data flash, and 512 B RAM, operating at 1.8–5.5 V and delivering 31 DMIPS at 24 MHz. It integrates an 8/10-bit 11-channel ADC, dual CSI/I²C serial interfaces, UART, 4-channel 16-bit TAU timer, DMA controller, and ultra-low-power HALT/STOP/SNOOZE modes - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F10268ASM#75 datasheet, R5F10268ASM#75 pinout, R5F10268ASM#75 application, or R5F10268ASM#75 equivalent, key selection criteria include its 2 KB on-chip data flash for firmware updates, ±1.0% high-speed on-chip oscillator accuracy over –20 to +85°C, CRC hardware acceleration, and support for 1.8-V interface compatibility with legacy peripherals.
Technical Context
The R5F10268ASM#75 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction timing (0.04167 µs min @ 24 MHz). Its power management includes dedicated low-speed on-chip oscillator (15 kHz) for watchdog operation and voltage detector with 12 selectable reset thresholds.
Peripheral integration centers on dual simplified SPI (CSI) channels, dual simplified I²C (IIC00/IIC01), one UART0, and SAU0-based serial function units - all mapped to fixed pins on the 20-pin TSSOP package with peripheral I/O redirection via PIOR register for limited pin multiplexing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 8 KB code flash + 2 KB data flash - enables field firmware updates without external EEPROM |
| CPU Performance | 31 DMIPS @ 24 MHz - sufficient for real-time motor control and sensor fusion |
| Operating Voltage | 1.8–5.5 V - supports direct Li-ion battery (3.0–4.2 V) and 3.3/5.0 V system rails |
| A/D Converter | 8/10-bit resolution, 11 input channels, internal 1.45 V reference - eliminates need for external voltage reference |
| Power Modes | HALT (63 μA/MHz), STOP (0.52 μA), SNOOZE - extends battery life in intermittent-sensing applications |
| Oscillator Accuracy | ±1.0% @ –20 to +85°C (high-speed on-chip oscillator) - meets timing requirements for UART at 115.2 kbps without crystal |
Pinout & Package
Package: PTSP0020JI-A, 20-pin plastic TSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / CSI00 Clock / IIC00 Clock | Multi-function pin supporting synchronous serial communication or precision timing output |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / CSI00 Data In / UART0 Receive / IIC00 Data / Debug RX | Shared serial receive path for multiple protocols; TOOLRxD enables in-circuit debugging |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / CSI00 Data Out / UART0 Transmit / IIC00 Data / Debug TX | Unified transmit path for UART, CSI, and debug - simplifies PCB routing |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt Pin 2 | Hardware timer capture/compare capability with interrupt trigger for edge-sensitive events |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt Pin 3 | Dual timer channel for PWM generation or quadrature decoding |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / IIC00 Clock / UART0 Transmit (remapped) | Open-drain I²C clock line with 6 V tolerance - safe for mixed-voltage bus interfacing |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / IIC00 Data / UART0 Receive (remapped) | Open-drain I²C data line with 6 V tolerance - supports hot-plug I²C slave devices |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive analog reference | Provides stable AVREFP for A/D conversion - reduces dependency on external reference ICs |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative analog reference | Enables differential analog measurements with programmable gain amplifier configurations |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / CSI01 Data In / Reset Input | Active-low hardware reset with internal pull-up - ensures reliable boot under brown-out conditions |
Key Features
| Feature | Design Value |
|---|---|
| On-chip data flash | 2 KB with background operation (BGO) - allows concurrent program execution during firmware update |
| Hardware CRC accelerator | Full CRC-16/32 computation in single instruction - accelerates firmware integrity checks and secure boot |
| RAM guard & SFR guard | Memory protection logic prevents accidental overwrite of critical registers or stack overflow corruption |
| 1.8-V interface capability | I/O pins tolerate 1.8 V logic levels - enables direct connection to low-voltage sensors and FPGAs |
| Self-programming with flash shield | Secure in-application reprogramming using flash shield window - blocks unauthorized access to protected sectors |
Applications
| Smart Home Sensor Hub | Industrial Motor Control Panel |
|---|---|
Use Scenario: Central node aggregating temperature, humidity, and motion data from multiple Zigbee/Z-Wave end devices before forwarding to cloud gateway. IC Role / Device Role / Timing Role: Main MCU executing sensor fusion algorithms, managing wireless coexistence, and maintaining real-time clock synchronization. Use Value: 2 KB data flash stores calibrated sensor coefficients and OTA update images; ±1.0% oscillator enables reliable 32.768 kHz RTC derivation without external crystal. | Use Scenario: Compact panel-mounted controller regulating speed/torque of BLDC motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Real-time motor commutation engine with PWM generation, current sensing ADC sampling, and fault monitoring. Use Value: 4-channel 16-bit TAU timer delivers precise 3-phase PWM with dead-time insertion; HALT mode reduces standby power to <100 µA during idle periods. |
| Portable Medical Monitor | Energy Meter Communication Module |
Use Scenario: Battery-powered wearable device measuring ECG, SpO₂, and skin temperature with Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Signal acquisition processor handling analog front-end conditioning, digital filtering, and BLE packet framing. Use Value: 11-channel ADC supports simultaneous multi-lead ECG acquisition; STOP mode draws only 0.52 µA - extends coin-cell battery life beyond 1 year. | Use Scenario: DIN-rail mounted module translating pulse outputs from mechanical kWh meters into DLMS/COSEM-compliant HAN messages via PLC or RF mesh. IC Role / Device Role / Timing Role: Protocol bridge between legacy pulse counters and modern smart grid infrastructure. Use Value: Dual CSI/I²C interfaces manage isolated meter interface and PLC transceiver simultaneously; CRC hardware validates meter pulse integrity in noisy industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASM#75 | 12 KB code flash, same 2 KB data flash, identical pinout and peripherals | Higher firmware headroom for complex protocol stacks (e.g., Matter over Thread) | Select when future firmware expansion or cryptographic library integration is anticipated |
| R5F10368ASM#75 | No data flash; ±5.0% oscillator accuracy; no DMA, CRC, RAM/SFR guard | Limited to cost-sensitive, non-updatable embedded functions (e.g., simple LED drivers) | Choose only for static firmware deployments where field updates and safety features are unnecessary |
Compared with R5F10269ASM#75 and R5F10368ASM#75, the R5F10268ASM#75 balances firmware flexibility (2 KB data flash), timing precision (±1.0%), and functional safety (CRC/RAM guard) - making it optimal for upgradable industrial edge nodes requiring long-term reliability.
Availability
R5F10268ASM#75 is available at Aetrix Electronics and suitable for smart home hubs, portable medical monitors, and industrial motor control panels requiring stable component supply across extended product lifecycles.
Supply support for R5F10268ASM#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets.
The RL78/G12 product line targets ultra-low-power general-purpose embedded applications - designed to replace legacy 8-bit MCUs while delivering 16-bit performance, integrated analog, and robust firmware update capabilities in compact packages.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F10268ASM#75?
The R5F10268ASM#75 operates at up to 24 MHz using its high-speed on-chip oscillator, achieving 31 DMIPS performance. This benchmark reflects integer instruction throughput under typical compiler-optimized code and confirms suitability for real-time control tasks such as sensor data processing and motor commutation without external acceleration.
Does the R5F10268ASM#75 support in-system programming via its on-chip debug interface?
Yes, the R5F10268ASM#75 includes an on-chip debug function compatible with Renesas E2 emulator and standard SWD/JTAG tools. However, Renesas explicitly cautions against using this feature in mass-produced units due to finite flash rewrite endurance - the R5F10268ASM#75 is intended for development verification only, not runtime debug access in deployed systems.
How many analog input channels does the R5F10268ASM#75 provide, and what reference voltages are supported?
The R5F10268ASM#75 provides 11 analog input channels (ANI0–ANI3, ANI16–ANI22) with selectable 8- or 10-bit resolution. It supports internal 1.45 V reference, AVREFP/AVREFM differential reference, and VDD-based reference - enabling flexible sensor interfacing without external voltage references in most designs.
Can the R5F10268ASM#75 operate reliably from a single 1.8-V supply rail?
Yes, the R5F10268ASM#75 guarantees full functionality across 1.8–5.5 V, including all peripherals and flash operations. At 1.8 V, it supports up to 8 MHz operation in LS mode and maintains 11-channel ADC accuracy with internal reference - making it ideal for energy-harvesting and coin-cell-powered applications.
What safety-related hardware features are integrated into the R5F10268ASM#75?
The R5F10268ASM#75 integrates CRC calculation hardware, RAM guard, and SFR guard - all confirmed in the RL78/G12 datasheet as present in R5F102-series devices. These features detect memory corruption and prevent unintended register writes, supporting IEC 61508 SIL-2 functional safety compliance when implemented per Renesas' safety manual.
R5F10268ASM#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:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 14
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 768 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:
R5F10268ASM#75 FAQ
1.How can I place an order for R5F10268ASM#75 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10268ASM#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 R5F10268ASM#75 reliable?
The price and inventory of R5F10268ASM#75 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10268ASM#75 is usually 5 days.
3.What payment methods are accepted for R5F10268ASM#75?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10268ASM#75 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10268ASM#75?
R5F10268ASM#75 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10268ASM#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 R5F10268ASM#75?
For technical support, including R5F10268ASM#75 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10268ASM#75 requirements.
6.How does Aetrix verify that R5F10268ASM#75 is sourced from the original manufacturer or authorized distributors?
All R5F10268ASM#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 R5F10268ASM#75 meets industry standards.
7.What is the process for return or replacement of R5F10268ASM#75?
All R5F10268ASM#75 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10268ASM#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 R5F10268ASM#75 part is unused and in its original packaging.
Return procedure for R5F10268ASM#75:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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