Renesas R5F1016CASM#50
- Part No.:
- R5F1016CASM#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1016CASM#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 20TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,440
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Product details
Overview
R5F1016CASM#50 from Renesas is a 20-pin, 16 KB flash, data-flash-free RL78/G13 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), used in battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F1016CASM#50 datasheet, R5F1016CASM#50 pinout, R5F1016CASM#50 application, or R5F1016CASM#50 equivalent, key selection criteria include its 20-pin TSSOP package, absence of data flash memory, -40°C to +85°C industrial temperature grade, and integrated 10-bit ADC with 6-channel analog input support.
Technical Context
The R5F1016CASM#50 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs min @ 32 MHz). It supports single-supply operation and includes on-chip power-on-reset (POR) and voltage detector (LVD) with 14 selectable threshold levels.
It integrates a 10-bit A/D converter with internal 1.45 V reference and temperature sensor, real-time clock with calendar/alarm functions, and multiple serial interfaces including UART/LIN, I²C, and CSI (SPI-compatible). DMA controller supports 2 channels with 2-clock transfers between SFR and RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for real-time control loop execution |
| Flash Memory | 16 KB code flash - sufficient for compact firmware with bootloader and safety routines |
| RAM | 2 KB on-chip RAM - supports stack, variables, and small buffer operations |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct interface with Li-ion, alkaline, or 3.3/5 V system rails |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE - extends battery life in intermittent-sensing applications |
| Analog Peripherals | 10-bit ADC with 6 input channels, internal 1.45 V reference, and temperature sensor - eliminates external references for thermal monitoring |
Pinout & Package
Package: 20-pin plastic TSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared serial clock line supporting dual-protocol peripheral interfacing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling debug communication (TOOLRxD) and sensor bus connectivity |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input with selectable AVREFP function for precision measurement calibration |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Differential reference pair with ANI0 for ratiometric sensor signal conditioning |
| P22/ANI2 | Analog Input 2 | Dedicated analog channel for secondary sensor input without reference sharing |
| P147/ANI18 | Analog Input 18 | Extended analog channel accessible only on 20-pin variant - enables multi-sensor integration in minimal footprint |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - enables >10-year battery life in metering applications |
| On-chip high-accuracy oscillator | +/-1.0% tolerance over -20°C to +85°C - eliminates external crystal for cost-sensitive designs |
| Self-programming flash | Boot swap and flash shield window support - enables secure field firmware updates without external programmer |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - provides time-stamped logging without host MCU intervention |
| Multi-protocol serial interface | UART/LIN, I²C, and CSI on shared pins - reduces PCB routing complexity for mixed-bus sensor networks |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with pulse counting, tamper detection, and periodic RF transmission. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake-up scheduling, and LIN/UART communication to metrology ICs and transceivers. Use Value: 0.57 μA STOP mode extends 2xAA battery life beyond 12 years; integrated LVD prevents data corruption during brownout. |
Use Scenario: DIN-rail mounted temperature/humidity/pressure sensor with local display and Modbus RTU output. IC Role / Device Role / Timing Role: Signal acquisition and protocol translation engine, converting analog sensor outputs to Modbus frames via UART with CRC generation. Use Value: 10-bit ADC with internal reference ensures ±1.5°C accuracy without trimming; 41 DMIPS handles real-time CRC-16 and display refresh. |
| Home Appliance Control | Medical Diagnostic Device |
|
Use Scenario: Washing machine main control board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Safety-critical subsystem controller handling door lock logic, temperature monitoring, and fault reporting via UART to main MCU. Use Value: On-chip POR and LVD with 14 thresholds enable robust reset behavior across wide AC/DC supply variations; HALT mode reduces standby consumption to 66 μA/MHz. |
Use Scenario: Portable blood glucose monitor with electrochemical sensor interface, LCD driver, and USB charging management. IC Role / Device Role / Timing Role: Analog front-end supervisor acquiring sensor current, performing auto-zero calibration, and managing low-voltage battery charging state. Use Value: Integrated temperature sensor enables automatic compensation of enzyme reaction kinetics; 1.6 V minimum VDD supports operation down to single-cell LiFePO₄ discharge end-point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1006CASM#50 | Includes 4 KB data flash memory; identical code flash, RAM, package, and peripherals | Required for applications needing nonvolatile parameter storage (e.g., calibration tables, device IDs) | Select when persistent configuration storage is mandatory; otherwise R5F1016CASM#50 reduces BOM cost |
| RL78/G14 R5F104BAASM#50 | Same 20-pin TSSOP package but with 32 KB flash, 4 KB RAM, and enhanced ADC (12-bit, 8 channels) | Suitable for upgraded firmware features or higher-resolution sensor acquisition | Choose for future-proofing or when additional code space and ADC resolution justify cost premium |
Compared with R5F1006CASM#50 and R5F104BAASM#50, the R5F1016CASM#50 offers optimal cost-efficiency for fixed-function, low-memory embedded controllers where data flash is unnecessary and performance headroom is limited.
Availability
R5F1016CASM#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance subsystems, and portable medical devices requiring stable component supply across long production lifecycles.
Supply support for R5F1016CASM#50 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose applications - designed to replace legacy 8-bit MCUs while delivering 16-bit performance and advanced peripheral integration in compact packages.
FAQ
What is the maximum operating frequency of the R5F1016CASM#50?
The R5F1016CASM#50 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 41 DMIPS performance. This frequency is fully supported across the full 1.6 V to 5.5 V supply range and -40°C to +85°C ambient temperature, with oscillator accuracy maintained at ±1.0% under those conditions. The R5F1016CASM#50 does not require an external crystal for timing-critical applications.
Does the R5F1016CASM#50 include data flash memory?
No, the R5F1016CASM#50 does not include data flash memory. As indicated by the "101" prefix in its part number per Renesas documentation, this variant provides 16 KB of code flash and 2 KB of RAM but omits the 4 KB data flash found in "100"-series counterparts like R5F1006CASM#50. Applications requiring nonvolatile parameter storage must use external EEPROM or select a data-flash-equipped variant.
What package type and pin count does the R5F1016CASM#50 use?
The R5F1016CASM#50 uses a 20-pin plastic TSSOP package (4.4 × 6.5 mm, 0.65-mm pitch), identified by the "SM" suffix and "#50" embossed tape packaging code. This package is RoHS-compliant, surface-mount compatible, and shares pinout compatibility with other 20-pin RL78/G13 variants including R5F1006CASM#50 and R5F1016AASM#50.
What low-power modes are supported by the R5F1016CASM#50?
The R5F1016CASM#50 supports HALT (66 μA/MHz), STOP (0.57 μA with RTC and LVD active), and SNOOZE modes. In STOP mode, the device retains RAM content and wakes via RTC alarm, LVD interrupt, or external pin event - making it ideal for infrequent-sampling applications like utility meters or environmental sensors where multi-year battery life is required.
Which analog peripherals are integrated into the R5F1016CASM#50?
The R5F1016CASM#50 integrates a 10-bit successive-approximation ADC with six analog input channels (including P20/ANI0, P21/ANI1, P22/ANI2, and P147/ANI18), internal 1.45 V reference voltage, and factory-calibrated temperature sensor. These features enable direct connection of resistive sensors, thermistors, and voltage-output transducers without external signal conditioning components.
R5F1016CASM#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 6x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1016CASM#50 FAQ
1.How can I place an order for R5F1016CASM#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1016CASM#50 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 R5F1016CASM#50 reliable?
The price and inventory of R5F1016CASM#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1016CASM#50 is usually 5 days.
3.What payment methods are accepted for R5F1016CASM#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1016CASM#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1016CASM#50?
R5F1016CASM#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1016CASM#50 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 R5F1016CASM#50?
For technical support, including R5F1016CASM#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1016CASM#50 requirements.
6.How does Aetrix verify that R5F1016CASM#50 is sourced from the original manufacturer or authorized distributors?
All R5F1016CASM#50 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 R5F1016CASM#50 meets industry standards.
7.What is the process for return or replacement of R5F1016CASM#50?
All R5F1016CASM#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1016CASM#50, 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 R5F1016CASM#50 part is unused and in its original packaging.
Return procedure for R5F1016CASM#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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