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Renesas R5F21192SP#W4
- Part No.:
- R5F21192SP#W4
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F21192SP#W4.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,326
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Product details
Overview
R5F21192SP#W4 from Renesas Electronics is a 16-bit single-chip microcontroller in the R8C/19 Group, featuring an R8C/Tiny Series CPU core, 8 KB program flash ROM, 1 KB × 2 data flash ROM, and 512 bytes RAM. It operates at up to 20 MHz (50 ns min instruction time), supports 13 I/O pins including LED drive capability, and integrates Timer X/Z/C, dual UART, clock-synchronous serial I/O, 4-channel comparator, and on-chip oscillators - deployed in household appliance control and sensor-based housing equipment.
For engineers reviewing the R5F21192SP#W4 datasheet, R5F21192SP#W4 pinout, R5F21192SP#W4 application, or R5F21192SP#W4 equivalent, key selection considerations include its 20-pin LSSOP package (PLSP0020JB-A), -20°C to +85°C operating range, data flash endurance (10,000 cycles), low-power stop mode (0.7 µA), and integrated voltage detection and power-on reset circuits.
Technical Context
The R5F21192SP#W4 implements a 16-bit R8C/Tiny CPU with 89 fundamental instructions and a 20-bit program counter enabling 1 Mbyte address space. Its memory architecture separates 8 KB program ROM (0C000h–0FFFFh) from 2 KB data flash (02400h–02BFFh), supporting independent erase/program operations.
Peripheral integration includes two UART channels (one with clock-synchronous serial I/O), three timers (8-bit ×2 + 16-bit), a 4-channel 1-bit comparator with analog inputs AN8–AN11, and dual clock sources: main crystal oscillator (XIN/XOUT) and adjustable high-speed on-chip oscillator - all managed via dedicated SFRs in the 00000h–002FFh address range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit, 89 instructions, 20-bit PC for 1 Mbyte addressing |
| Memory | 8 KB program flash ROM + 2 KB data flash (1 KB × 2 blocks) + 512 B RAM |
| Operating Speed | 20 MHz max (50 ns min instruction time at VCC = 3.0–5.5 V) |
| Power Consumption | 0.7 µA in stop mode (VCC = 3.0 V); 9 mA active at 20 MHz, 5.0 V |
| Package | 20-pin LSSOP (PLSP0020JB-A), 0.65 mm pitch, surface-mount compatible |
| Temperature Range | -20°C to +85°C (standard grade, non-D version) |
| Data Flash Endurance | 10,000 write/erase cycles - enables reliable firmware parameter storage |
Pinout & Package
Package: 20-pin molded-plastic LSSOP (PLSP0020JB-A), 7.6 mm × 4.4 mm body, 0.65 mm lead pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 | I/O port or peripheral function pin | Configurable CMOS I/O (P1_0–P1_7, P3_3–P3_5, P3_7, P4_5); P1_0–P1_3 support LED drive; P4_2 is VREF input; P4_6/P4_7 are input-only |
| 3 | RESET | Active-low asynchronous reset input; internal pull-up enabled after power-on |
| 6 | XIN | Main clock input - accepts crystal (1–20 MHz), ceramic resonator, or external clock signal |
| 4 | XOUT | Main clock output - drives crystal/resonator; open when using external clock |
Key Features
| Feature | Design Value |
|---|---|
| Data flash memory | 2 KB (1 KB × 2 blocks) with 10,000-cycle endurance - enables field-updatable calibration data and configuration storage without external EEPROM |
| Low-power operation | 0.7 µA stop mode current at 3.0 V - extends battery life in portable or energy-conscious embedded systems |
| Dual UART interface | One UART with clock-synchronous serial I/O capability + one standard UART - supports simultaneous host communication and sensor/actuator protocol bridging |
| Integrated analog comparator | 4-channel 1-bit comparator with dedicated analog inputs (AN8–AN11) and reference voltage pin (VREF) - enables threshold-based sensing without ADC overhead |
| On-chip oscillators | High-speed on-chip oscillator (adjustable) + low-speed on-chip oscillator + main crystal circuit - eliminates need for external timing components in many applications |
Applications
| Home Appliance Control | Housing Security Sensor Hub |
|---|---|
|
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 loops, reading analog sensor signals via comparator, and driving LED indicators through P1_0–P1_3. Use Value: Integrated data flash stores user preference settings and cycle history; low-power stop mode reduces standby consumption during idle periods. |
Use Scenario: Central node in apartment doorbell + motion sensor system aggregating inputs and triggering alerts via UART-connected gateway. IC Role / Device Role / Timing Role: Sensor fusion hub processing PIR motion triggers (INT0), door contact (INT3), and analog smoke sensor (CMP0_0/AN8) with timestamping via Timer C. Use Value: Dual UART allows concurrent local display (UART0) and cloud-connected module communication (UART1); 20-pin LSSOP fits compact PCB layouts. |
| Office Equipment Power Management | Industrial Panel Meter Interface |
|
Use Scenario: Standby power supervisor in multifunction printer controlling wake-on-LAN, sleep state transitions, and supply rail monitoring. IC Role / Device Role / Timing Role: System monitor coordinating power sequencing, detecting supply brownouts via on-chip voltage detector, and managing USB suspend/resume timing. Use Value: On-chip power-on reset and voltage detection eliminate discrete supervisors; 0.7 µA stop mode meets ENERGY STAR® low-standby requirements. |
Use Scenario: Front-end interface in DIN-rail mounted panel meter converting analog process signals (4–20 mA) to digital display and Modbus RTU output. IC Role / Device Role / Timing Role: Signal conditioner digitizing analog inputs via comparator thresholds and transmitting formatted data over UART (Modbus slave) with precise baud rate timing from on-chip oscillator. Use Value: High-speed on-chip oscillator trimmed for ±2% UART accuracy at 9600 bps; data flash retains calibration coefficients across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21192DD | Same core, memory, and peripherals; packaged in 20-pin SDIP (PRDP0020BA-A) instead of LSSOP | Through-hole assembly preferred; larger footprint; no thermal pad | Select for manual soldering, prototyping, or legacy board compatibility where LSSOP reflow is unavailable |
| R5F21193SP | 12 KB program ROM + 2 KB data flash + 768 B RAM; otherwise identical peripheral set and pinout | Requires more code space for complex UI or communication stacks; same PCB layout | Choose when firmware growth exceeds 8 KB or additional RAM is needed for buffer-intensive protocols |
Compared with R5F21192SP#W4, R5F21192DD offers through-hole mounting but lacks LSSOP's space efficiency and thermal performance, while R5F21193SP provides headroom for feature expansion without changing hardware design - both retain full software compatibility within the R8C/19 Group.
Availability
R5F21192SP#W4 is available at Aetrix Electronics and suitable for home appliance control, housing security sensor hubs, and office equipment power management requiring stable component supply across multi-year production cycles.
Supply support for R5F21192SP#W4 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 formed in 2010 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for industrial and consumer markets.
The R8C/19 Group, including R5F21192SP#W4, was designed for cost-sensitive, low-power embedded control in appliances and building automation - emphasizing integrated peripherals, flash flexibility, and robust operation across commercial temperature ranges.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for R5F21192SP#W4?
R5F21192SP#W4 operates at up to 20 MHz with a supply voltage range of 3.0 V to 5.5 V. At 10 MHz, it supports a wider range of 2.7 V to 5.5 V. These specifications are validated per Renesas datasheet REJ03B0124-0140, ensuring deterministic timing and stable flash access across the rated conditions.
Does R5F21192SP#W4 include on-chip debug support, and what interface is used?
Yes, R5F21192SP#W4 supports on-chip debugging via the single-wire background debug mode (BDM) using the RESET pin as the debug interface. This enables full breakpoint, step-through, and memory inspection capabilities without requiring additional pins beyond the standard reset functionality.
How is the data flash memory organized and accessed in R5F21192SP#W4?
R5F21192SP#W4 contains 2 KB of data flash memory arranged as two independent 1 KB blocks (02400h–027FFh and 02800h–02BFFh). Access is controlled via dedicated SFRs (FMR, FSAR, FCR) and requires specific unlock sequences; each block supports 10,000 erase/write cycles and byte-level programming within a sector.
What are the key differences between R5F21192SP#W4 and R5F21182SP in the same package?
R5F21192SP#W4 belongs to the R8C/19 Group and includes 2 KB of data flash ROM (1 KB × 2), whereas R5F21182SP (R8C/18 Group) has no data flash. Both share identical package (PLSP0020JB-A), CPU core, peripherals, and pinout - making R5F21192SP#W4 the upgrade path when nonvolatile parameter storage is required.
Can R5F21192SP#W4 operate without an external crystal, and what are the timing implications?
Yes, R5F21192SP#W4 can operate using its high-speed on-chip oscillator, which is factory-trimmed and adjustable via SFR. While sufficient for UART communication (±2% typical accuracy at 9600 bps), external crystals (1–20 MHz) are required for applications demanding tighter timing tolerance, such as synchronous serial interfaces or precise real-time clock generation.
R5F21192SP#W4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- R8C/1x/19
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- SIO, UART/USART
- Peripherals:
- LED, POR, Voltage Detect, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21192SP#W4 FAQ
1.How can I place an order for R5F21192SP#W4 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21192SP#W4 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 R5F21192SP#W4 reliable?
The price and inventory of R5F21192SP#W4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21192SP#W4 is usually 5 days.
3.What payment methods are accepted for R5F21192SP#W4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21192SP#W4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21192SP#W4?
R5F21192SP#W4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21192SP#W4 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 R5F21192SP#W4?
For technical support, including R5F21192SP#W4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21192SP#W4 requirements.
6.How does Aetrix verify that R5F21192SP#W4 is sourced from the original manufacturer or authorized distributors?
All R5F21192SP#W4 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 R5F21192SP#W4 meets industry standards.
7.What is the process for return or replacement of R5F21192SP#W4?
All R5F21192SP#W4 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21192SP#W4, 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 R5F21192SP#W4 part is unused and in its original packaging.
Return procedure for R5F21192SP#W4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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