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Renesas R5F21153DSP#U0
- Part No.:
- R5F21153DSP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F21153DSP#U0.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:108
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Product details
Overview
R5F21153DSP#U0 from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller with 12 KB program flash ROM, 1 KB × 2 data flash (2 KB total), 768 bytes RAM, and integrated 10-bit 4-channel ADC, UART, SSU, and three timers (8-bit ×2, 16-bit ×1). It operates at up to 20 MHz (50 ns min instruction time) across 2.7–5.5 V and targets embedded control in household appliances and industrial sensors.
For engineers reviewing the R5F21153DSP#U0 datasheet, R5F21153DSP#U0 pinout, R5F21153DSP#U0 application, or R5F21153DSP#U0 equivalent, this MCU delivers deterministic real-time control with on-chip oscillators, voltage detection, watchdog timer, and low-power stop mode (0.7 µA), making it suitable for cost-sensitive, space-constrained designs requiring field-programmable nonvolatile memory and analog sensing.
Technical Context
The R5F21153DSP#U0 implements the R8C/Tiny CPU core with 89 basic instructions and 1 Mbyte linear address space. Its memory architecture separates 12 KB program ROM (0C000h–0FFFFh) from two 1 KB data flash blocks (02400h–02BFFh), enabling independent firmware updates and parameter storage without erasing application code.
Peripheral integration includes a 16-bit Timer C with input capture/output compare, dual 8-bit timers (X/Z) with prescalers, clock-synchronous serial I/O (SSU), UART, and four analog inputs routed through shared pins (AN8–AN11) with internal reference support (VREF tied to VCC). The device uses a 20-pin LSSOP package (PLSP0020JB-A) with dedicated LED drive capability on P1_0–P1_3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit, 89 instructions, 50 ns min execution at 20 MHz |
| Memory | 12 KB flash program ROM + 2 KB data flash (1 KB × 2 blocks) + 768 B RAM |
| ADC | 10-bit resolution, 4-channel single-ended input, internal VREF reference |
| Timers | Timer C (16-bit, input capture/output compare), Timer X/Z (8-bit ×2, each with 8-bit prescaler) |
| Serial Interfaces | 1 UART channel + 1 SSU (chip-select synchronous serial I/O) |
| Supply & Power | 2.7–5.5 V operation; 0.7 µA stop mode current; built-in POR, voltage detector, oscillation stop detection |
| Package | 20-pin plastic LSSOP (PLSP0020JB-A), -40°C to +85°C operating range (D version) |
Pinout & Package
Package: 20-pin plastic molded LSSOP (PLSP0020JB-A), 0.65 mm pitch, surface-mount, JEDEC MS-013AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (P3_5) | SSCK / CMP1_2 | SSU clock I/O or comparator output; bidirectional timing signal for synchronous serial communication |
| 2 (P3_7) | CNTR0 / SSO | Timer X counter input or SSU data output; enables hardware event counting or serial data transmission |
| 3 (RESET) | Reset Input | Active-low asynchronous reset; initiates hardware initialization sequence upon logic low assertion |
| 4 (XOUT) | Main Clock Output | Output of crystal/resonator oscillator circuit; requires external load capacitance for stable frequency generation |
| 5 (VSS/AVSS) | Digital & Analog Ground | Common return path for digital logic and A/D converter; separate AVSS minimizes noise coupling into analog section |
| 6 (XIN) | Main Clock Input | Input for crystal/resonator or external clock source; forms Pierce oscillator with XOUT and internal feedback resistor |
| 7 (VCC) | Power Supply | Primary 2.7–5.5 V supply for digital core and peripherals; decoupling capacitor required near pin |
| 8 (MODE) | Boot Mode Select | Must be pulled high via resistor to enable normal flash execution mode after reset |
| 9 (P4_5) | INT0 Input | External interrupt request input with programmable filter; supports edge-triggered wake-up from low-power modes |
| 10 (P1_7) | CNTR00 / INT10 | Timer X channel 0 counter input or interrupt source; allows precise timing of external events |
| 11 (P1_6) | CLK0 | UART/SSU transfer clock I/O; configurable as input for external baud rate timing or output for master-mode synchronization |
| 12 (P1_5) | RXD0 / CNTR01 / INT11 | UART receive input, Timer X channel 1 counter input, or interrupt source; multiplexed for flexible peripheral routing |
| 13 (P1_4) | TXD0 | UART transmit output; drives serial data stream with programmable baud rate and framing |
| 14 (P1_3) | KI3 / TZOUT / AN11 | Key interrupt input, Timer Z output, or ADC channel 3 input; shared function reduces pin count without sacrificing capability |
| 15 (P1_2) | KI2 / CMP0_2 / AN10 | Key interrupt input, comparator output, or ADC channel 2 input; enables touch sensing, threshold detection, and analog monitoring |
| 16 (AVCC/VREF) | Analog Supply / Reference | Provides clean 2.7–5.5 V for A/D converter; VREF internally connected to AVCC for consistent conversion reference |
| 17 (P1_1) | KI1 / CMP0_1 / AN9 | Key interrupt input, comparator output, or ADC channel 1 input; supports multi-button interfaces and analog sensor arrays |
| 18 (P1_0) | KI0 / CMP0_0 / AN8 | Key interrupt input, comparator output, or ADC channel 0 input; primary analog input for system-level sensing |
| 19 (P3_3) | INT3 / TCIN / SSI / CMP1_0 | External interrupt, Timer C input capture, SSU data I/O, or comparator output; high-flexibility pin for mixed-signal applications |
| 20 (P3_4) | CMP1_1 / SCS | Comparator output or SSU chip-select input; enables peripheral selection in daisy-chained serial configurations |
Key Features
| Feature | Design Value |
|---|---|
| Data Flash Memory | 2 KB (1 KB × 2 blocks) with 10,000 write/erase cycles enables robust field firmware updates and parameter storage without full ROM reprogramming |
| Integrated Analog Front-End | 10-bit 4-channel ADC with internal VREF and shared pin mapping (AN8–AN11) reduces BOM count and PCB area for sensor-based control |
| Low-Power Operation | 0.7 µA stop mode current and programmable wait mode (35 µA) extend battery life in portable or energy-harvesting applications |
| On-Chip Oscillators | Dual oscillators (high-speed and low-speed on-chip) plus main crystal circuit eliminate need for external timing components in most designs |
| LED Drive Capability | P1_0–P1_3 support direct LED driving with current-limiting configuration, simplifying user interface implementation |
| Hardware Safety Functions | Built-in voltage detector, oscillation stop detection, and watchdog timer with prescaler provide fail-safe operation for industrial environments |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in washing machine control board managing motor sequencing, water level sensing, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing real-time motor control algorithms, reading analog pressure/temperature sensors, and driving LED indicators. Use Value: Integrated 10-bit ADC and LED drive ports reduce external component count; data flash stores calibration offsets and usage logs without external EEPROM. |
Use Scenario: Standalone temperature/humidity monitor deployed in factory HVAC ducts with periodic wireless reporting. IC Role / Device Role / Timing Role: Sensor acquisition and preprocessing unit sampling analog outputs, applying linearization, and preparing data packets for RF transmission. Use Value: Low-power stop mode (0.7 µA) extends battery life; on-chip voltage detector ensures reliable operation during brown-out conditions. |
| Office Equipment | Security System Sensor |
Use Scenario: Embedded controller in document scanner managing paper feed motors, CIS image sensor interface, and USB communication. IC Role / Device Role / Timing Role: Real-time motion controller synchronizing stepper motor phases and digitizing analog sensor signals from optical path. Use Value: 16-bit Timer C with input capture precisely measures encoder pulses; UART handles host command parsing and status reporting. |
Use Scenario: PIR motion detector with tamper switch and battery supervision in residential alarm panel. IC Role / Device Role / Timing Role: Event-driven sensor hub detecting interrupts from PIR, door contacts, and low-battery condition, then triggering alert protocol. Use Value: Four external interrupt inputs (INT0/INT3/INT10/INT11) support concurrent sensor polling; key input circuitry (KI0–KI3) enables secure keypad interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21153SP | Same core, memory, and peripherals but rated for -20°C to +85°C (non-D version); lacks extended temperature qualification | Suitable for indoor consumer electronics where ambient extremes are not expected | Select R5F21153SP only if industrial-grade temperature range is unnecessary and cost optimization is critical |
| R5F21154DSP | 16 KB program ROM + 2 KB data flash + 1 KB RAM vs. 12 KB + 2 KB + 768 B; identical package and peripheral set | Preferred when larger firmware footprint or additional runtime variables are required without changing PCB layout | Choose R5F21154DSP when future firmware expansion headroom or enhanced data logging capacity is needed |
Compared with R5F21153DSP#U0, R5F21153SP offers identical functionality at lower temperature grade, while R5F21154DSP provides scalable memory headroom within the same footprint-enabling design reuse across product tiers without hardware revision.
Availability
R5F21153DSP#U0 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, and office equipment requiring stable component supply and long-term manufacturing continuity.
Supply support for R5F21153DSP#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8C/15 Group, including R5F21153DSP#U0, was designed for cost-optimized, low-power embedded control in consumer and general industrial applications-emphasizing integrated analog peripherals, field-upgradable flash, and compact packaging.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for R5F21153DSP#U0?
R5F21153DSP#U0 operates at up to 20 MHz with a supply voltage of 3.0–5.5 V. At 10 MHz, it supports a wider 2.7–5.5 V range. This dual-voltage/frequency specification allows flexible power management-higher performance when powered from 5 V, or extended battery life at reduced clock speed and lower voltage.
Does R5F21153DSP#U0 include on-chip debug support for firmware development?
Yes, R5F21153DSP#U0 supports on-chip debugging via the single-wire debug interface using the Renesas E8 emulator. The CPU includes debug flag (D flag) and interrupt vector table base register (INTB), enabling breakpoint insertion, register inspection, and step-through execution without external JTAG hardware.
How is the data flash memory organized and what endurance does it offer?
R5F21153DSP#U0 contains two independent 1 KB data flash blocks (total 2 KB), mapped to addresses 02400h–027FFh (Block A) and 02800h–02BFFh (Block B). Each block supports 10,000 program/erase cycles, enabling reliable storage of calibration data, device configuration, or usage logs across product lifetime.
Can R5F21153DSP#U0 operate from a single-cell lithium battery?
Yes, R5F21153DSP#U0 supports 2.7–5.5 V operation, making it compatible with a single Li-ion/Li-polymer cell (nominal 3.7 V, discharge range ~3.0–4.2 V). Its 0.7 µA stop mode current and programmable voltage detector ensure safe brown-out handling and extended runtime in portable applications.
What peripheral functions share pins with the 10-bit ADC inputs on R5F21153DSP#U0?
ADC channels AN8–AN11 are multiplexed with P1_0–P1_3, which also serve as key input interrupt pins (KI0–KI3) and comparator outputs (CMP0_0–CMP0_3). This shared pin architecture allows simultaneous use of analog sensing and capacitive touch or threshold-detection functions, reducing pin count without compromising feature set.
R5F21153DSP#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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21153DSP#U0 FAQ
1.How can I place an order for R5F21153DSP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21153DSP#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 R5F21153DSP#U0 reliable?
The price and inventory of R5F21153DSP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21153DSP#U0 is usually 5 days.
3.What payment methods are accepted for R5F21153DSP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21153DSP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21153DSP#U0?
R5F21153DSP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21153DSP#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 R5F21153DSP#U0?
For technical support, including R5F21153DSP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21153DSP#U0 requirements.
6.How does Aetrix verify that R5F21153DSP#U0 is sourced from the original manufacturer or authorized distributors?
All R5F21153DSP#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 R5F21153DSP#U0 meets industry standards.
7.What is the process for return or replacement of R5F21153DSP#U0?
All R5F21153DSP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21153DSP#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 R5F21153DSP#U0 part is unused and in its original packaging.
Return procedure for R5F21153DSP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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