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Renesas R5F51101ADLM#U0
- Part No.:
- R5F51101ADLM#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 36-WFLGA
- Datasheet:
-
R5F51101ADLM#U0.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 36WFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R5F51101ADLM#U0 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 32 KB flash, 10 KB SRAM, 12-bit A/D converter with 7 input channels, RTC, and integrated I²C, SPI, and SCI interfaces. It targets low-power industrial sensing and control applications requiring precise timing and analog signal acquisition.
For engineers reviewing the R5F51101ADLM#U0 datasheet, R5F51101ADLM#U0 pinout, R5F51101ADLM#U0 application, or R5F51101ADLM#U0 equivalent, key selection criteria include its 36-pin WFLGA package (5 × 5 mm), −40 to +85°C temperature grade, 1.8–3.6 V supply range, software standby mode (0.35 μA), and 4.8 μs wake-up time - all critical for battery-powered edge nodes and compact embedded systems.
Technical Context
The R5F51101ADLM#U0 implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle instruction execution. Its on-chip peripherals include a 12-bit A/D converter with 1.0 μs minimum conversion time, MTU2 timer unit with four 16-bit channels supporting input capture and PWM, and dual SCI interfaces (SCI1/SCI5) with asynchronous, clock-synchronous, and simple I²C/SPI modes.
It integrates dedicated low-power features: three operating modes (high-speed, deep sleep, software standby), independent watchdog timer driven by a 15 kHz on-chip oscillator, and voltage detection circuits with configurable thresholds. Clock generation includes high-speed (32 MHz ±1%), sub-clock (32.768 kHz), and low-speed (4 MHz) on-chip oscillators, plus external crystal support up to 20 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 32 MHz max, 50 DMIPS - enables real-time deterministic control in space-constrained designs. |
| Memory | 32 KB flash (no wait states at 32 MHz), 10 KB SRAM - supports firmware updates and data buffering without external memory. |
| A/D Converter | 12-bit resolution, 7 input channels, 1.0 μs min conversion - suitable for fast sensor sampling in motor control or environmental monitoring. |
| Timers | MTU2 (4×16-bit channels), CMT (2×16-bit), RTC - provides flexible PWM generation, input capture, and calendar/timekeeping with alarm interrupt. |
| Communication | SCI (2 channels), RIIC (1 channel), RSPI (1 channel) - enables multi-protocol connectivity to sensors, displays, and host controllers. |
| Power & Temp | 1.8–3.6 V supply, −40 to +85°C operation, 0.35 μA software standby - ideal for unregulated battery or energy-harvesting systems. |
| Package | PWLG0036KA-A, 36-pin WFLGA, 4 × 4 mm, 0.5 mm pitch - delivers high I/O density in ultra-compact footprint for PCB area-sensitive designs. |
Pinout & Package
PWLG0036KA-A is a 36-pin wafer-level chip-scale package (WFLGA), measuring 4 × 4 mm with 0.5 mm pitch and bottom-side solder balls. It supports reflow assembly and offers thermal performance comparable to QFN while minimizing board area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply and ground | Dual power domains: VCC powers digital logic; VSS is common reference - requires local decoupling per Renesas layout guidelines. |
| XTAL / EXTAL | External crystal interface | Supports 1–20 MHz crystal for precise system clock; EXTAL accepts external clock signal if crystal not used. |
| RES# | Active-low reset input | Asynchronous hardware reset; must be held low ≥100 ns for reliable initialization after power-up or brownout. |
| P14–P17, P26–P27, etc. | Multi-function GPIO | 32 general-purpose I/O pins with 5-V tolerance, open-drain capability, and pull-up resistors - configurable via MPC for peripheral mapping. |
| AN000–AN004, AN006, AN008 | Analog input channels | 7 dedicated A/D inputs tied to AVCC0/AVSS0 - require separate analog power routing and filtering for <1 LSB noise performance. |
| SCL0 / SDA0 | I²C bus interface | Open-drain I²C pins compliant with SMBus; support fast-mode (400 kbps) - enable direct connection to standard I²C sensors without level shifters. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debugging | FINE interface (FINED pin) enables full-speed real-time debugging and flash programming without ICE header - reduces development cycle time. |
| Low-power wake-up | 4.8 μs recovery from software standby mode using RTC or external interrupt - preserves battery life while maintaining responsive system behavior. |
| Clock accuracy measurement | CAC circuit validates internal oscillator frequency against external reference - satisfies IEC 60730 Class B functional safety requirements for clock monitoring. |
| Independent watchdog | IWDT with dedicated 15 kHz on-chip oscillator ensures fail-safe reset even if main clock fails - eliminates need for external WDT IC. |
| Temperature sensor | Integrated TEMPSA converts die temperature to digital value via shared 12-bit A/D - enables thermal management without external sensor. |
Applications
| Smart Sensor Node | Industrial Control Panel |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and pressure data at 10-second intervals. IC Role / Device Role / Timing Role: Main controller executing sensor polling, A/D conversion, I²C communication, and RTC-based scheduling. Use Value: 0.35 μA software standby current extends 2000 mAh coin cell life beyond 2 years; 4.8 μs wake-up ensures timely response to alarm triggers. | Use Scenario: Front-panel HMI for PLC-controlled HVAC system with LED indicators, push-button inputs, and serial diagnostics. IC Role / Device Role / Timing Role: Local intelligence handling button debouncing, LED PWM dimming, and RSPI communication with main controller. Use Value: MTU2 PWM outputs drive LEDs directly; 32 GPIO pins support matrix scanning and status feedback without external logic. |
| Energy Meter Interface | Medical Diagnostic Handheld |
Use Scenario: Sub-metering module interfacing with shunt-based current sensors and optical pulse output from utility meters. IC Role / Device Role / Timing Role: Signal conditioner and pulse counter using A/D inputs and external interrupt-triggered capture on MTIOC pins. Use Value: 12-bit A/D resolves 0.1% current measurement error; MTU2 input capture timestamps pulses with 31.25 ns resolution at 32 MHz. | Use Scenario: Portable blood glucose meter requiring low-power operation, analog sensor interface, and USB-serial bridge via SCI. IC Role / Device Role / Timing Role: System-on-chip managing electrochemical sensor biasing, A/D conversion, calibration storage, and host communication. Use Value: Integrated 32 KB flash stores firmware and calibration tables; 1.8 V minimum supply allows direct Li-ion battery operation without regulator. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51101ADFL#30 | 48-pin LFQFP (7 × 7 mm), same flash/RAM, identical peripherals - larger footprint but easier hand-soldering and probe access. | Preferred for prototyping, lab validation, or designs where PCB area is less constrained than thermal profile. | Select when mechanical robustness or debug accessibility outweighs miniaturization goals. |
| R5F51103ADLM#U0 | 64 KB flash, 10 KB SRAM, same package and temperature grade - adds 32 KB program storage for complex algorithms or OTA update partitions. | Suitable for field-upgradable devices requiring dual-bank firmware or expanded feature sets without changing layout. | Choose when future firmware growth or secure boot partitioning is required, with no change to board footprint. |
Compared with R5F51101ADFL#30 and R5F51103ADLM#U0, the R5F51101ADLM#U0 delivers optimal balance of minimal size, certified low-power operation, and sufficient memory for fixed-function edge nodes - making it the preferred choice for volume production of space- and energy-constrained devices.
Availability
R5F51101ADLM#U0 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial HMIs, energy meter interfaces, and portable medical diagnostics requiring stable component supply across multi-year production cycles.
Supply support for R5F51101ADLM#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 RX110 Group, including the R5F51101ADLM#U0, was designed for cost-sensitive, ultra-low-power embedded applications demanding rich peripheral integration in minimal form factors - especially where rapid time-to-market and long-term supply stability are critical.
FAQ
What is the maximum operating frequency and core performance of the R5F51101ADLM#U0?
The R5F51101ADLM#U0 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS (Dhrystone MIPS) performance. Its 32-bit RX CPU core features a five-stage pipeline, variable-length instruction set, and single-cycle instruction execution - enabling efficient real-time processing for sensor fusion and control tasks without external acceleration.
Which package type does the R5F51101ADLM#U0 use, and what are its key mechanical attributes?
The R5F51101ADLM#U0 uses the PWLG0036KA-A package: a 36-pin wafer-level chip-scale package measuring 4 × 4 mm with 0.5 mm ball pitch. It features bottom-mounted solder balls, requires no thermal pad connection, and supports standard reflow profiles - ideal for high-density PCB layouts in wearables and compact industrial modules.
Does the R5F51101ADLM#U0 support real-time clock functionality, and how is it implemented?
Yes, the R5F51101ADLM#U0 includes a dedicated real-time clock (RTC) module powered by the 32.768 kHz sub-clock oscillator. It supports calendar count mode (year/month/day/hour/minute/second), leap year correction, and alarm interrupts. The RTC can initiate wake-up from software standby mode - enabling precise time-stamped logging with minimal power overhead.
How many analog input channels does the R5F51101ADLM#U0's 12-bit A/D converter support, and what is its speed?
The R5F51101ADLM#U0's 12-bit A/D converter supports 7 analog input channels (AN000–AN004, AN006, AN008). Its minimum conversion time is 1.0 μs per channel when ADCLK runs at 32 MHz, enabling up to 1 MSPS sampling rate in burst mode - sufficient for motor current sensing, battery voltage monitoring, and environmental sensor interfacing.
What low-power modes are available on the R5F51101ADLM#U0, and what is the lowest achievable current draw?
The R5F51101ADLM#U0 offers three low-power modes: sleep, deep sleep, and software standby. In software standby mode, it draws just 0.35 μA (typical) while retaining SRAM content and enabling wake-up via RTC alarm or external interrupt. Recovery time is 4.8 μs - balancing ultra-low quiescent current with responsive system behavior.
R5F51101ADLM#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 36-WFLGA
- Series:
- RX110
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, SCI, SPI
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51101ADLM#U0 FAQ
1.How can I place an order for R5F51101ADLM#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51101ADLM#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 R5F51101ADLM#U0 reliable?
The price and inventory of R5F51101ADLM#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51101ADLM#U0 is usually 5 days.
3.What payment methods are accepted for R5F51101ADLM#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51101ADLM#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51101ADLM#U0?
R5F51101ADLM#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51101ADLM#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 R5F51101ADLM#U0?
For technical support, including R5F51101ADLM#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51101ADLM#U0 requirements.
6.How does Aetrix verify that R5F51101ADLM#U0 is sourced from the original manufacturer or authorized distributors?
All R5F51101ADLM#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 R5F51101ADLM#U0 meets industry standards.
7.What is the process for return or replacement of R5F51101ADLM#U0?
All R5F51101ADLM#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F51101ADLM#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 R5F51101ADLM#U0 part is unused and in its original packaging.
Return procedure for R5F51101ADLM#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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