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Renesas R5F101CDALA#U0
- Part No.:
- R5F101CDALA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 36-WFLGA
- Datasheet:
-
R5F101CDALA#U0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 36WFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:980
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Product details
Overview
R5F101CDALA#U0 from Renesas is a 32-bit RL78/G13 microcontroller with 48 KB flash memory, 2 KB RAM, and no data flash, housed in a 36-pin WFLGA (4 × 4 mm, 0.5-mm pitch) package. It operates from 1.6 V to 5.5 V, delivers 41 DMIPS at 32 MHz, and supports ultra-low-power modes including STOP (0.57 μA) and HALT, targeting battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F101CDALA#U0 datasheet, R5F101CDALA#U0 pinout, R5F101CDALA#U0 application, or R5F101CDALA#U0 equivalent, key selection criteria include its 36-pin WFLGA footprint, absence of on-chip data flash, -40°C to +85°C industrial temperature grade (D), and integrated 10-bit ADC with 26-channel analog input capability.
Technical Context
The R5F101CDALA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer with dedicated low-speed oscillator.
Peripheral integration includes up to 26-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 8–16 channels of 16-bit timer, 2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels - all configurable without external components for compact embedded control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 32-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz delivering 41 DMIPS - enables real-time motor control loop execution within 25 μs |
| Memory Configuration | 48 KB code flash, 2 KB RAM, 0 KB data flash - sufficient for firmware + runtime variables in compact IoT edge nodes |
| Power Modes | STOP mode @ 0.57 μA (RTC + LVD active); HALT mode @ 66 μA/MHz - extends coin-cell battery life to >10 years |
| Analog Peripherals | 10-bit A/D converter with 26 input channels and internal 1.45 V reference - eliminates need for external voltage reference IC |
| Operating Temperature | -40°C to +85°C (Industrial D-grade) - qualified for deployment in HVAC controllers and factory automation terminals |
| Supply Voltage Range | 1.6 V to 5.5 V - supports direct connection to single Li-ion, 3.3 V rail, or legacy 5 V systems without level-shifting |
Pinout & Package
Package: 36-pin WFLGA (4 × 4 mm, 0.5-mm pitch), lead-free, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00 / SCL00 | Master clock output for SPI or I²C interface - configurable per peripheral mode without external pull-ups |
| P11 | SI00 / RxD0 / TOOLRxD / SDA00 | Multi-function serial input: SPI slave-in, UART receive, debug RX, or I²C data - reduces pin count in space-constrained designs |
| P12 | SO00 / TxD0 / TOOLTxD / SCL00 | Multi-function serial output: SPI slave-out, UART transmit, debug TX, or I²C clock - enables shared debug/comm lines |
| P20 | ANI0 / AVREFP | Analog input channel 0 with positive reference input - allows ratiometric sensing using external sensor bridge |
| P21 | ANI1 / AVREFM | Analog input channel 1 with negative reference input - supports differential ADC measurements with programmable gain |
| VDD | Core & I/O Supply | Single 1.6–5.5 V supply powers both digital logic and analog peripherals - simplifies power design vs dual-rail MCUs |
| VSS | Digital Ground | Dedicated ground return for digital circuitry - separates noise-sensitive analog paths when layout-optimized |
| AVSS | Analog Ground | Isolated analog ground pin - required for <1 LSB ADC error in precision measurement applications |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC + LVD active - enables decade-long operation on CR2032 battery in wireless sensor nodes |
| On-chip high-accuracy oscillator | +/-1.0% over 1.8–5.5 V and -20 to +85°C - eliminates external crystal for cost-sensitive timing-critical apps like smoke detectors |
| Background data flash rewrite | Not applicable - R5F101CDALA#U0 has no data flash; code flash self-programming supported via boot swap |
| Multi-protocol serial interface | UART/LIN + I²C + CSI on shared pins - reduces BOM count by consolidating communication PHYs in home appliance UIs |
| Temperature sensor & Vref | Integrated 1.45 V reference and calibrated temperature sensor - enables system health monitoring without external components |
Applications
| Smart Energy Meter Interface | Industrial Temperature Sensor Node |
|---|---|
|
Use Scenario: Reads metrology IC SPI output, logs tamper events, and transmits via RS-485/LIN to concentrator. IC Role / Device Role: Primary system controller managing metrology data acquisition, secure logging, and protocol translation. Use Value: 48 KB flash accommodates DLMS/COSEM stack + firmware updates; STOP mode extends battery backup to 5+ years. |
Use Scenario: Measures ambient and PCB temperature via internal sensor and external thermistors, reports via LoRaWAN gateway. IC Role / Device Role: Autonomous sensing node with local calibration, low-power scheduling, and wake-on-event. Use Value: Integrated 10-bit ADC with 26 channels supports 8+ sensor inputs; 0.57 μA STOP mode enables 10-year CR123A life. |
| White Goods Motor Control Panel | Programmable Logic Relay Module |
|
Use Scenario: Drives LED indicators, reads push-button matrix, communicates with main MCU via UART, and manages buzzer alerts. IC Role / Device Role: Dedicated UI controller offloading human-interface tasks from main application MCU. Use Value: On-chip key interrupt and buzzer output controller eliminate external debounce/logic ICs; 36-pin WFLGA fits tight front-panel layouts. |
Use Scenario: Replaces electromechanical relays in DIN-rail mounted control panels, executing ladder logic with discrete I/O scanning. IC Role / Device Role: Real-time deterministic I/O processor with cycle-timed execution and fault-safe watchdog. Use Value: 16-bit timers support precise 10 ms I/O scan intervals; -40°C to +85°C rating ensures reliability in uncooled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101CDALA#V0 | Same die, LQFP-36 package (10 × 10 mm, 0.8-mm pitch) instead of WFLGA | Preferred for prototyping or manual soldering; larger footprint eases test probe access and rework | Select #V0 for development boards or low-volume production where WFLGA assembly is unavailable |
| R5F100CDALA#U0 | Identical package and pinout, but includes 4 KB data flash and enhanced security features | Required when field firmware updates or secure parameter storage (e.g., calibration data) are mandatory | Choose #U0 only if data flash persistence is unnecessary - reduces cost and simplifies flash management |
Compared with R5F101CDALA#U0, the #V0 variant trades miniaturization for assembly flexibility, while the R5F100CDALA#U0 adds nonvolatile parameter storage at higher cost and firmware complexity - making R5F101CDALA#U0 optimal for fixed-function, cost-sensitive industrial controls.
Availability
R5F101CDALA#U0 is available at Aetrix Electronics and suitable for industrial temperature sensors, smart metering interfaces, and white goods UI panels requiring stable component supply across multi-year production cycles.
Supply support for R5F101CDALA#U0 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 embedded applications - balancing performance, energy efficiency, and integration for appliances, sensors, and industrial HMI.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for R5F101CDALA#U0?
The R5F101CDALA#U0 operates at up to 32 MHz and delivers 41 DMIPS. This performance level supports real-time control loops with sub-25 μs latency, making it suitable for brushless DC motor commutation and fast-response sensor fusion in industrial edge devices.
Does R5F101CDALA#U0 include on-chip data flash memory?
No, R5F101CDALA#U0 does not include data flash memory. It provides 48 KB of code flash and 2 KB of RAM only. Data retention must be implemented externally or via code flash emulation - unlike the R5F100x series which includes 4–8 KB of dedicated data flash.
What package type and pin count does R5F101CDALA#U0 use?
R5F101CDALA#U0 uses a 36-pin WFLGA (Wafer-Level Chip-Scale Package) measuring 4 × 4 mm with 0.5-mm pitch. This ultra-compact package supports high-density PCB layouts typical in smart meters and portable industrial tools.
What is the operating temperature range specified for R5F101CDALA#U0?
R5F101CDALA#U0 is rated for industrial operation from -40°C to +85°C (D-grade). This qualification ensures reliable function in factory-floor HMIs, outdoor utility meters, and HVAC control units without thermal derating.
Which serial communication interfaces are supported by R5F101CDALA#U0?
R5F101CDALA#U0 supports UART/LIN (up to 4 channels), I²C/Simplified I²C (up to 10 channels), and CSI (SPI-compatible, up to 8 channels), all configurable on shared pins. This enables flexible connectivity to displays, sensors, and modems without additional level translators.
R5F101CDALA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 36-WFLGA
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- 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:
- 26
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101CDALA#U0 FAQ
1.How can I place an order for R5F101CDALA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101CDALA#U0 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 R5F101CDALA#U0 reliable?
The price and inventory of R5F101CDALA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101CDALA#U0 is usually 5 days.
3.What payment methods are accepted for R5F101CDALA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101CDALA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101CDALA#U0?
R5F101CDALA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101CDALA#U0 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 R5F101CDALA#U0?
For technical support, including R5F101CDALA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101CDALA#U0 requirements.
6.How does Aetrix verify that R5F101CDALA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F101CDALA#U0 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 R5F101CDALA#U0 meets industry standards.
7.What is the process for return or replacement of R5F101CDALA#U0?
All R5F101CDALA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101CDALA#U0, 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 R5F101CDALA#U0 part is unused and in its original packaging.
Return procedure for R5F101CDALA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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