Renesas R5F100ACASP#V0
- Part No.:
- R5F100ACASP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F100ACASP#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 30LSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,490
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Product details
Overview
R5F100ACASP#V0 from Renesas is a 30-pin, 16 KB flash, 2 KB RAM RL78/G13 16-bit microcontroller with integrated data flash (4 KB), real-time clock, 10-bit ADC (6 channels), and ultra-low-power operation (0.57 μA in RTC+LVD mode). It operates from 1.6–5.5 V and supports 32 MHz max CPU speed, targeting battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F100ACASP#V0 datasheet, R5F100ACASP#V0 pinout, R5F100ACASP#V0 application, or R5F100ACASP#V0 equivalent, key selection criteria include its LSSOP-30 package, consumer-grade temperature range (−40°C to +85°C), on-chip debug support, and compatibility with Renesas' RL78 toolchain and E2 studio IDE for rapid firmware development and low-power system validation.
Technical Context
The R5F100ACASP#V0 implements the RL78 CPU core with a 3-stage CISC pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It integrates a 12-bit interval timer, 16-bit timers (8 channels), UART/LIN, I²C, CSI, and DMA (2 channels) for deterministic peripheral handling.
Its power architecture includes HALT, STOP, and SNOOZE modes, with on-chip POR and LVD (14-level selectable reset/interrupt). The device uses a high-accuracy ±1.0% on-chip oscillator (1–32 MHz) and supports background data flash rewriting (BGO) with 1M write cycles endurance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - enables 41 DMIPS performance for real-time control loops |
| Flash Memory | 16 KB code flash - sufficient for compact firmware with bootloader and safety checks |
| Data Flash | 4 KB - supports nonvolatile parameter storage and field updates without external EEPROM |
| RAM | 2 KB - accommodates stack, heap, and real-time buffers for sensor fusion or communication stacks |
| ADC | 10-bit resolution, 6 input channels - suitable for analog sensor interfacing (temperature, voltage, current) |
| Supply Voltage | 1.6–5.5 V - allows direct connection to Li-ion, coin-cell, or 3.3/5 V rails without regulation overhead |
| Low-Power Mode Current | 0.57 μA (RTC + LVD active) - extends battery life in always-on monitoring applications |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling in noise-sensitive environments |
| P10/SCK00/SCL00 | Serial clock I/O | Configurable as SPI clock or I²C clock - enables shared bus topology with sensors or displays |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data I/O | Multi-function pin supports SPI input, UART receive, debug RX, and I²C data - simplifies board routing |
| P20/ANI0/AVREFP | Analog input / reference positive | Primary ADC channel with dedicated reference input - improves measurement accuracy for precision sensing |
| P21/ANI1/AVREFM | Analog input / reference negative | Paired with P20 to form differential ADC reference - enables ratiometric sensor readings |
| P22/ANI2 | Analog input | Third ADC channel - supports multi-sensor acquisition without external multiplexer |
| P147/ANI18 | Analog input | Additional ADC channel accessible in 30-pin variant - expands analog monitoring capability |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion - ensures deterministic startup |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD - enables decade-scale battery life in metering applications |
| On-chip data flash (4 KB) | 1,000,000 write cycles with background operation - permits firmware parameter logging without halting execution |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and clock correction - eliminates need for external RTC IC |
| Multi-protocol serial interfaces | UART/LIN + I²C + CSI (SPI-like) - supports mixed-protocol sensor networks and automotive diagnostics |
| On-chip debug interface | Fully integrated with E2 emulator - enables real-time trace, breakpoint, and memory inspection without external JTAG pod |
| Temperature sensor | Integrated die-temperature sensor with 1.45 V reference - provides system thermal monitoring at zero BOM cost |
Applications
| Smart Home Sensor Node | Industrial Panel Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to gateway every 5 minutes. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, RTC-triggered wake-up, low-power sleep, and serial telemetry. Use Value: 0.57 μA STOP mode and integrated RTC reduce average current to <1.2 μA, enabling >5-year CR2032 operation. | Use Scenario: Front-panel interface for HVAC system with push-button inputs, LED indicators, and RS-485 communication. IC Role / Device Role / Timing Role: Human-machine interface controller handling debounced inputs, PWM-driven LEDs, and UART-to-RS485 bridge logic. Use Value: 6-channel 10-bit ADC reads potentiometers and thermistors directly; 8×16-bit timers drive precise LED dimming and button hold detection. |
| Portable Medical Monitor | Energy Meter Interface Module |
Use Scenario: Wearable pulse oximeter using analog front-end and BLE co-processor for data offload. IC Role / Device Role / Timing Role: Signal conditioner and protocol translator - digitizes analog photodiode signals and formats packets for BLE transmission. Use Value: Internal 1.45 V reference and AVREFP/M pins enable stable ratiometric ADC measurements across battery discharge curve. | Use Scenario: Sub-metering module collecting voltage/current samples and storing billing data locally. IC Role / Device Role / Timing Role: Data logger with time-stamped sampling, secure parameter storage, and tamper-detection via LVD interrupt. Use Value: 4 KB data flash stores 30 days of 15-minute interval energy logs; BGO allows logging while processing new samples. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100BCASP#V0 | 32 KB flash, 2 KB RAM, same LSSOP-30 package and peripherals | Supports larger firmware images (e.g., with OTA update stack or enhanced encryption) | Select when firmware size exceeds 16 KB or future scalability is required |
| R5F101ACASP#V0 | No data flash (0 KB), otherwise identical flash/RAM/peripherals/package | Requires external nonvolatile memory for configuration storage | Select when data logging is unnecessary and BOM cost reduction is critical |
Compared with R5F100BCASP#V0, the R5F100ACASP#V0 trades flash capacity for lower unit cost in resource-constrained designs; compared with R5F101ACASP#V0, it adds 4 KB data flash to eliminate external EEPROM, reducing PCB area and qualification effort for parameter persistence.
Availability
R5F100ACASP#V0 is available at Aetrix Electronics and suitable for smart home sensors, industrial HMI panels, portable medical monitors, and energy meter interface modules requiring stable component supply and long-term manufacturability.
Supply support for R5F100ACASP#V0 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 industrial, automotive, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications where reliability, code density, and ultra-low standby current are critical.
FAQ
What is the operating temperature range for the R5F100ACASP#V0?
The R5F100ACASP#V0 is rated for −40°C to +85°C (Consumer grade, "A" suffix), making it suitable for indoor consumer electronics and industrial control panels within standard ambient conditions. It does not support extended industrial (−40°C to +105°C) operation - that requires "G"-suffix variants like R5F100ACGSP#V0.
Does the R5F100ACASP#V0 include an integrated debugger interface?
Yes, the R5F100ACASP#V0 includes a full on-chip debug interface compatible with Renesas E2 emulator and E2 studio IDE. This eliminates the need for external debug hardware and supports real-time breakpoints, memory inspection, and flash programming through the single-pin TOOLRxD pin (P11).
Can the R5F100ACASP#V0 operate from a single 1.8 V supply?
Yes, the R5F100ACASP#V0 supports 1.6–5.5 V operation, including stable execution at 1.8 V. At this voltage, maximum clock speed is reduced per datasheet limits, but all peripherals-including ADC, RTC, and serial interfaces-remain fully functional, enabling direct integration with 1.8 V logic systems.
How many ADC channels are available on the R5F100ACASP#V0?
The R5F100ACASP#V0 provides 6 analog input channels (ANI0–ANI2, ANI18, plus two more mapped to other pins not exposed in LSSOP-30), all supporting 10-bit resolution. The package exposes ANI0 (P20), ANI1 (P21), ANI2 (P22), and ANI18 (P147), giving four accessible channels in this variant.
Is the R5F100ACASP#V0 pin-compatible with other RL78/G13 devices in LSSOP-30 package?
Yes, all RL78/G13 devices in the LSSOP-30 package (e.g., R5F100BCASP#V0, R5F100CCASP#V0) share identical pinouts and electrical characteristics. Firmware and PCB layouts are interchangeable across flash/RAM variants, enabling scalable design reuse without hardware changes.
R5F100ACASP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 21
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K 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:
R5F100ACASP#V0 FAQ
1.How can I place an order for R5F100ACASP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100ACASP#V0 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 R5F100ACASP#V0 reliable?
The price and inventory of R5F100ACASP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100ACASP#V0 is usually 5 days.
3.What payment methods are accepted for R5F100ACASP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100ACASP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100ACASP#V0?
R5F100ACASP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100ACASP#V0 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 R5F100ACASP#V0?
For technical support, including R5F100ACASP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100ACASP#V0 requirements.
6.How does Aetrix verify that R5F100ACASP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100ACASP#V0 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 R5F100ACASP#V0 meets industry standards.
7.What is the process for return or replacement of R5F100ACASP#V0?
All R5F100ACASP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100ACASP#V0, 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 R5F100ACASP#V0 part is unused and in its original packaging.
Return procedure for R5F100ACASP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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