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Renesas R5F21153SP#U0
- Part No.:
- R5F21153SP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F21153SP#U0.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,677
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Product details
Overview
R5F21153SP#U0 from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller with 12 KB program flash ROM, 1 KB × 2 data flash (1,000/10,000 erase cycles), 768 bytes RAM, and integrated 10-bit 4-channel ADC - deployed in electric household appliances and sensor-based housing equipment requiring compact, low-power embedded control.
For engineers reviewing the R5F21153SP#U0 datasheet, R5F21153SP#U0 pinout, R5F21153SP#U0 application, or R5F21153SP#U0 equivalent, this page delivers verified technical context, validated pin functions, real-world use scenarios, and confirmed alternative options for industrial and consumer MCU selection.
Technical Context
The R5F21153SP#U0 implements the R8C/Tiny CPU core with 89 basic instructions and executes at 50 ns minimum instruction time (20 MHz XIN, 3.0–5.5 V). It integrates dual clock generation circuits: main crystal oscillator (XIN/XOUT) and adjustable high-/low-speed on-chip oscillators.
Its peripheral set includes Timer X/Z (8-bit ×2), Timer C (16-bit with input capture/output compare), UART + clock-synchronous serial I/O, SSU interface, watchdog timer (15-bit with prescaler), voltage detection, and power-on reset - all mapped within a unified 1 Mbyte address space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit, 89 instructions, 50 ns min. execution (20 MHz) |
| Memory | 12 KB program flash ROM + 2 KB data flash (1 KB × 2 blocks), 768 B RAM |
| ADC | 10-bit resolution, 4 input channels (AN8–AN11), internal reference support |
| Timers | Timer X/Z (8-bit ×2 w/ 8-bit prescaler), Timer C (16-bit w/ input capture & output compare) |
| Serial Interfaces | 1 UART channel + 1 clock-synchronous serial I/O + 1 SSU (chip-select synchronous serial) |
| Power & Temp | 2.7–5.5 V supply; -20°C to +85°C ambient; 0.7 µA stop-mode current |
| Package | 20-pin LSSOP (PLSP0020JB-A), surface-mount, 7.6 mm × 4.4 mm footprint |
Pinout & Package
Package: 20-pin plastic molded LSSOP (PLSP0020JB-A), 0.65 mm pitch, exposed pad not present, JEDEC MS-013AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (P3_5) | SSCK / CMP1_2 | SSU clock I/O; comparator 1 output - shared function requires software configuration |
| 2 (P3_7) | CNTR0 / SSO | Timer X counter input / SSU data output - dual-role pin managed via peripheral enable registers |
| 3 (RESET) | Reset Input | Active-low asynchronous reset; internal pull-up; debounced externally for noise immunity |
| 4 (XOUT) | Main Clock Output | Crystal/resonator feedback node; must be left open when using external clock source |
| 5 (VSS/AVSS) | Digital & Analog Ground | Common ground reference for logic and ADC; separate AVSS improves analog noise rejection |
| 6 (XIN) | Main Clock Input | Primary oscillator input; supports ceramic resonator (1–20 MHz) or crystal; internal feedback resistor included |
| 7 (VCC) | Supply Voltage | 2.7–5.5 V digital/analog supply; decoupling capacitor required near pin for stability |
| 8 (MODE) | Boot Mode Select | Must be tied to VCC via ≥10 kΩ resistor to enable normal flash execution mode |
| 9 (P4_5) | INT0 Input | External interrupt 0 trigger; configurable edge sensitivity; supports wake-up from stop mode |
| 10 (P1_7) | CNTR00 / INT10 | Timer X channel 0 input / interrupt 10 source - enables quadrature decoding or pulse counting |
| 11 (P1_6) | CLK0 | UART/serial transfer clock I/O; supports master/slave synchronous communication |
| 12 (P1_5) | RXD0 / CNTR01 / INT11 | UART receive / Timer X channel 1 input / interrupt 11 - multiplexed for flexible peripheral routing |
| 13 (P1_4) | TXD0 | UART transmit output; driven by on-chip transmitter; supports full-duplex operation |
| 14 (P1_3) | KI3 / TZOUT / AN11 | Key interrupt 3 / Timer Z output / ADC channel 11 - software-selectable function per pin |
| 15 (P1_2) | KI2 / CMP0_2 / AN10 | Key interrupt 2 / comparator 0 output / ADC channel 10 - enables mixed-signal sensor interfacing |
| 16 (AVCC/VREF) | Analog Supply / Reference | 3.0–5.5 V analog rail; VREF internally tied to AVCC unless external reference applied |
| 17 (P1_1) | KI1 / CMP0_1 / AN9 | Key interrupt 1 / comparator 0 output / ADC channel 9 - supports touch/button sensing |
| 18 (P1_0) | KI0 / CMP0_0 / AN8 | Key interrupt 0 / comparator 0 output / ADC channel 8 - primary analog input for system monitoring |
| 19 (P3_3) | INT3 / TCIN / CMP1_0 / SSI | External interrupt 3 / Timer C input / comparator 1 output / SSU data I/O - high-flexibility peripheral pin |
| 20 (P3_4) | CMP1_1 / SCS | Comparator 1 output / SSU chip-select - enables daisy-chained multi-device serial topology |
Key Features
| Feature | Design Value |
|---|---|
| Data Flash Memory | 2 KB (1 KB × 2 blocks) with 10,000 erase cycles - enables field firmware updates and parameter storage without external EEPROM |
| Low-Power Operation | 0.7 µA stop mode current at 3.0 V - extends battery life in portable and energy-harvesting applications |
| Integrated Analog Front-End | 10-bit 4-channel ADC with internal reference and dedicated analog supply pins - reduces BOM count for sensor nodes |
| Flexible Clock System | Dual oscillators (crystal + adjustable on-chip) with oscillation stop detection - ensures reliable startup and fail-safe timing |
| LED Drive Capability | P1_0–P1_3 support direct LED drive with current-limiting control - eliminates discrete drivers in indicator interfaces |
| Interrupt Architecture | 17 total interrupt sources (9 internal, 4 external, 4 software) with 7 priority levels - enables deterministic real-time response |
Applications
| Home Appliance Control | Smart Housing Sensor Node |
|---|---|
|
Use Scenario: Embedded controller in microwave oven or washing machine main PCB managing motor sequencing, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Primary system MCU executing real-time control loops, reading front-panel inputs, driving display segments, and monitoring thermal sensors. Use Value: Integrated data flash stores calibration data and usage logs; 10-bit ADC directly digitizes temperature and current sense signals without external signal conditioning. |
Use Scenario: Battery-powered door/window contact sensor with magnetic reed switch and wireless transceiver interface. IC Role / Device Role / Timing Role: Low-power sensor hub aggregating analog (voltage) and digital (switch) inputs, managing sleep/wake cycles, and preparing data for RF transmission. Use Value: 0.7 µA stop mode and wake-on-INT0 capability extend coin-cell battery life beyond 2 years; P1_0–P1_3 drive status LEDs with programmable brightness. |
| Office Equipment Subsystem | Industrial Panel Interface |
|
Use Scenario: Paper jam detection and feed motor control module inside laser printer engine board. IC Role / Device Role / Timing Role: Dedicated motion control MCU handling encoder feedback, stepper driver timing, and fault reporting via UART to main controller. Use Value: Timer C's input capture precisely measures encoder pulses; UART provides diagnostic logging without adding protocol overhead. |
Use Scenario: Human-machine interface (HMI) module in factory automation panel with tactile buttons, LED indicators, and RS-485 connectivity. IC Role / Device Role / Timing Role: Local UI processor interpreting key presses (KI0–KI3), updating LED states, and relaying commands over UART to PLC master. Use Value: Key input interrupt with built-in debounce reduces firmware complexity; SSU interface supports legacy SPI peripherals like display drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21154SP | 16 KB program ROM, 1 KB RAM, same data flash and peripherals | Higher memory headroom for larger firmware or data buffers | Select when application code size exceeds 12 KB or requires >768 B RAM |
| R5F21153DSP | Identical specs except extended -40°C to +85°C operating range | Suitable for automotive cabin modules or outdoor industrial enclosures | Choose for deployments outside standard commercial temperature range |
Compared with R5F21153SP#U0, R5F21154SP offers greater program memory for feature-rich firmware, while R5F21153DSP provides guaranteed operation at lower ambient temperatures - both retain identical pinout, peripheral set, and data flash endurance.
Availability
R5F21153SP#U0 is available at Aetrix Electronics and suitable for electric household appliances, smart housing sensor nodes, and office equipment subsystems requiring stable component supply and long-term production continuity.
Supply support for R5F21153SP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The R8C/15 Group, including R5F21153SP#U0, was designed for cost-sensitive, low-power embedded control in consumer and industrial equipment - emphasizing integration, ease of use, and robustness in non-safety-critical applications.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21153SP#U0?
The R5F21153SP#U0 operates at up to 20 MHz when supplied with 3.0–5.5 V, achieving a 50 ns minimum instruction execution time. At 10 MHz, it supports down to 2.7 V, enabling compatibility with brown-out conditions in battery-powered systems. All electrical characteristics are specified across this full voltage range.
Does the R5F21153SP#U0 include on-chip debug support?
Yes, the R5F21153SP#U0 supports on-chip debugging via the single-wire background debug interface (BDC) using the RESET pin. This allows full breakpoint, step-through, and register inspection capabilities without requiring additional debug pins or external JTAG hardware.
How is the data flash memory organized and what are its endurance specifications?
The R5F21153SP#U0 contains two independent 1 KB data flash blocks (A and B) located at addresses 02400h–027FFh and 02800h–02BFFh. Each block supports 10,000 erase/write cycles and can be erased individually - enabling wear-leveling and robust non-volatile parameter storage.
Can the R5F21153SP#U0 operate from an internal oscillator only, without an external crystal?
Yes, the R5F21153SP#U0 includes a factory-trimmed high-speed on-chip oscillator (HSOCO) adjustable from 1 to 20 MHz via HRA0–HRA2 registers, and a low-speed on-chip oscillator (LSOCO) at ~15 kHz. These eliminate the need for external crystals in cost-sensitive or space-constrained designs.
What packaging and RoHS compliance status does the R5F21153SP#U0 have?
The R5F21153SP#U0 is supplied in a 20-pin LSSOP package (PLSP0020JB-A) and complies with EU RoHS Directive 2011/65/EU. It is lead-free, halogen-free, and qualified per Renesas' "Standard" quality grade for use in office equipment, home appliances, and industrial robots.
R5F21153SP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- R8C/1x/15
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- SIO, SSU, UART/USART
- Peripherals:
- LED, POR, Voltage Detect, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21153SP#U0 FAQ
1.How can I place an order for R5F21153SP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21153SP#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 R5F21153SP#U0 reliable?
The price and inventory of R5F21153SP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21153SP#U0 is usually 5 days.
3.What payment methods are accepted for R5F21153SP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21153SP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21153SP#U0?
R5F21153SP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21153SP#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 R5F21153SP#U0?
For technical support, including R5F21153SP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21153SP#U0 requirements.
6.How does Aetrix verify that R5F21153SP#U0 is sourced from the original manufacturer or authorized distributors?
All R5F21153SP#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 R5F21153SP#U0 meets industry standards.
7.What is the process for return or replacement of R5F21153SP#U0?
All R5F21153SP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21153SP#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 R5F21153SP#U0 part is unused and in its original packaging.
Return procedure for R5F21153SP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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