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Renesas R5F21192SP#U0
- Part No.:
- R5F21192SP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F21192SP#U0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,256
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Product details
Overview
R5F21192SP#U0 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 (2 KB total), and 512 bytes RAM. It operates at up to 20 MHz (50 ns min instruction time), supports 20-pin LSSOP packaging (PLSP0020JB-A), and integrates timers (X/Z/C), UART, clock-synchronous serial I/O, 4-channel comparator, and on-chip oscillators - deployed in household appliance control and sensor-based industrial equipment.
For engineers reviewing the R5F21192SP#U0 datasheet, R5F21192SP#U0 pinout, R5F21192SP#U0 application, or R5F21192SP#U0 equivalent, this page delivers verified technical identity, validated package mapping, confirmed peripheral configuration, real-world use context, and two rigorously cross-referenced alternative parts for design continuity.
Technical Context
The R5F21192SP#U0 implements a 16-bit R8C/Tiny CPU with 89 fundamental instructions and 1 Mbyte address space. Its memory architecture separates 8 KB program ROM (0C000h–0FFFFh) from dual 1 KB data flash blocks (02400h–02BFFh), enabling in-system reprogramming of non-volatile data without erasing code.
Peripheral integration includes Timer C (16-bit input capture/output compare), Timer X/Z (8-bit with prescaler), dual UART channels, one clock-synchronous serial interface, and a 4-channel 1-bit comparator with analog inputs AN8–AN11 - 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, 1 Mbyte address space - enables compact firmware and deterministic real-time response. |
| Memory | 8 KB program flash + 2 KB data flash (1 KB × 2 blocks) + 512 B RAM - supports firmware updates and persistent parameter storage without external EEPROM. |
| Timing Performance | 50 ns min instruction time at 20 MHz (VCC = 3.0–5.5 V) - meets tight loop timing in motor control and sensor sampling. |
| Supply Range | VCC = 3.0–5.5 V (20 MHz), 2.7–5.5 V (10 MHz) - compatible with standard 3.3 V and 5 V industrial rails. |
| Low-Power Modes | 0.7 µA stop mode, 35 µA wait mode (VCC = 3.0 V) - extends battery life in portable or energy-conscious systems. |
| Operating Temperature | –20°C to +85°C - rated for commercial/industrial environments including office equipment and housing controls. |
| Package | 20-pin LSSOP (PLSP0020JB-A), 0.65 mm pitch - surface-mount compatible with automated assembly and moderate I/O density. |
Pinout & Package
Package: 20-pin molded-plastic LSSOP (PLSP0020JB-A), 0.65 mm lead pitch, body size 7.6 × 4.9 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (P3_5) | Comparator output | CMP1_2 - dedicated comparator channel output for threshold detection logic. |
| 2 (P3_7) | Timer/serial I/O | CNTR0 (Timer X I/O) / TXD1 (UART1 output) - shared function enables flexible peripheral routing. |
| 3 (RESET) | Reset input | Active-low asynchronous reset - initiates hardware initialization sequence on falling edge. |
| 4 (XOUT) | Oscillator output | Main clock oscillator output - drives external crystal/resonator feedback path with internal resistor. |
| 5 (VSS/AVSS) | Ground reference | Digital and analog ground common pin - requires low-impedance PCB connection to minimize noise coupling. |
| 6 (XIN) | Oscillator input | Main clock input - accepts crystal, ceramic resonator, or external clock signal (0–20 MHz). |
| 7 (VCC/AVCC) | Power supply | Digital and analog supply - decoupling capacitor mandatory between VCC and VSS per layout guidelines. |
| 8 (MODE) | Boot configuration | Connect to VCC via pull-up resistor to select single-chip operation mode at power-on. |
| 9 (P4_5) | Interrupt/serial I/O | INT0 (external interrupt) / RXD1 (UART1 input) - enables wake-up or serial command reception. |
| 10 (P1_7) | Timer/interrupt I/O | CNTR00 (Timer X counter input) / INT10 (external interrupt) - supports event counting or edge-triggered wake-up. |
| 11 (P1_6) | Serial clock I/O | CLK0 - bidirectional transfer clock for synchronous serial interface (e.g., SPI-like protocols). |
| 12 (P1_5) | Serial I/O/interrupt | RXD0 (UART0 input) / CNTR01 (Timer X counter input) / INT11 - multiplexed for communication or timing. |
| 13 (P1_4) | Serial output | TXD0 - UART0 transmit output, driven CMOS level, compatible with RS-232 level shifters. |
| 14 (P1_3) | Timer/analog I/O | TZOUT (Timer Z output) / KI3 (key interrupt) / AN11 (comparator input) - supports PWM generation or touch sensing. |
| 15 (P1_2) | Analog/digital I/O | CMP0_2 / KI2 / AN10 - 3-function pin for comparator reference, key scan, or analog sensing. |
| 16 (VREF) | Analog reference | Comparator reference voltage input - accepts external precision reference or internal AVCC-derived bias. |
| 17 (P1_1) | Analog/digital I/O | CMP0_1 / KI1 / AN9 - enables multi-channel analog monitoring with shared digital interface. |
| 18 (P1_0) | Analog/digital I/O | CMP0_0 / KI0 / AN8 - primary comparator input and key scan pin, supports LED drive capability. |
| 19 (P3_3) | Timer/interrupt/analog | TCIN (Timer C input) / INT3 / CMP1_0 - captures external events for precise timing or fault detection. |
| 20 (P3_4) | Comparator output | CMP1_1 - second channel of comparator group 1, used for differential or redundant sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Data flash endurance | 10,000 write/erase cycles - enables reliable logging, calibration storage, or field-upgradable configuration. |
| On-chip oscillator tuning | High-speed internal oscillator with frequency adjustment - eliminates need for external crystal in cost-sensitive applications. |
| Comparator integration | 4-channel 1-bit comparator with dedicated analog inputs (AN8–AN11) - replaces external comparators in threshold-detection circuits. |
| Low-power operation | 0.7 µA stop mode current (VCC = 3.0 V) - supports battery-powered standby for >1 year with typical coin cell. |
| Hardware watchdog | 15-bit watchdog timer with prescaler and count-source protection - prevents runaway code without software intervention. |
| LED drive capability | P1_0–P1_3 support direct LED sinking (up to 20 mA per pin) - reduces BOM by eliminating discrete drivers in indicator interfaces. |
Applications
| Home Appliance Control | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Embedded control unit in washing machine main board managing motor sequencing, water valve actuation, and user interface. IC Role / Device Role / Timing Role: Primary MCU executing real-time motor control loops, reading front-panel buttons, and driving LED indicators via P1_0–P1_3. Use Value: Integrated 8-bit timers (X/Z), UART for diagnostic logging, and 0.7 µA stop mode enable energy-efficient idle states between cycles. |
Use Scenario: Standalone temperature/humidity sensor node transmitting data over UART to gateway in HVAC monitoring system. IC Role / Device Role / Timing Role: Data acquisition MCU sampling analog sensors (AN8–AN11), performing threshold comparison, and formatting packets for serial transmission. Use Value: On-chip 4-channel comparator eliminates external op-amps; data flash stores calibration coefficients across 10,000+ field updates. |
| Office Equipment | Housing Security System |
|
Use Scenario: Paper jam detection and feed motor control in multifunction printer document feeder subsystem. IC Role / Device Role / Timing Role: Dedicated motion controller interfacing with optical interrupters (via P3_3/P3_4) and driving stepper coils through external drivers. Use Value: 50 ns instruction timing ensures sub-millisecond response to jam signals; 20-pin LSSOP fits constrained PCB space near mechanical assemblies. |
Use Scenario: Door/window contact sensor hub aggregating magnetic switch inputs and reporting tamper events via UART to central panel. IC Role / Device Role / Timing Role: Low-power sensor concentrator using INT0/INT3 for wake-on-event, then processing and transmitting status via TXD0/RXD0. Use Value: 35 µA wait mode and 0.7 µA stop mode extend CR2032 battery life beyond 3 years; integrated voltage detector ensures reliable reset during brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21193SP | 12 KB program ROM, 768 B RAM, same data flash (1 KB × 2), identical package and peripherals. | Higher firmware capacity for complex UI or protocol stacks; no change to hardware design or pinout. | Select when firmware exceeds 8 KB or future feature expansion is anticipated without PCB revision. |
| R5F21182SP | R8C/18 Group variant: 8 KB program ROM, no data flash, otherwise identical CPU, timers, UART, and package. | Lacks in-system reprogrammable data storage - requires external EEPROM or NV SRAM for parameter retention. | Choose where data persistence is handled externally or not required; lower cost where flash flexibility is unnecessary. |
Compared with R5F21192SP#U0, R5F21193SP offers headroom for larger firmware while maintaining full compatibility, whereas R5F21182SP removes data flash to reduce cost but shifts non-volatile storage responsibility to external components - both require no layout changes but differ in memory architecture trade-offs.
Availability
R5F21192SP#U0 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor interface, and office equipment requiring stable component supply across extended production lifecycles.
Supply support for R5F21192SP#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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.
The R8C/19 Group targets cost-sensitive, low-power embedded applications in consumer and industrial equipment, emphasizing integrated peripherals, flash flexibility, and robust operation across commercial temperature ranges.
FAQ
What is the maximum operating frequency of the R5F21192SP#U0?
The R5F21192SP#U0 supports a maximum operating frequency of 20 MHz at VCC = 3.0–5.5 V, achieving a minimum instruction execution time of 50 ns. This timing is validated under specified voltage and temperature conditions and enables deterministic real-time performance in motor control and sensor polling loops.
Does the R5F21192SP#U0 include data flash memory?
Yes, the R5F21192SP#U0 includes 2 KB of data flash memory organized as two 1 KB blocks (02400h–02BFFh). This memory supports 10,000 write/erase cycles and is electrically erasable under VCC = 2.7–5.5 V, enabling reliable storage of calibration data, device settings, or usage logs without external components.
Which package type does the R5F21192SP#U0 use?
The R5F21192SP#U0 uses the 20-pin molded-plastic LSSOP package (PLSP0020JB-A), with 0.65 mm lead pitch and dimensions of 7.6 mm × 4.9 mm. This package is RoHS-compliant, surface-mount compatible, and optimized for automated assembly in high-volume consumer electronics manufacturing.
Can the R5F21192SP#U0 operate from a 3.3 V supply?
Yes, the R5F21192SP#U0 operates from 3.0 V to 5.5 V at 20 MHz, making it fully compatible with standard 3.3 V logic systems. At 3.0 V, it achieves 100 ns minimum instruction time when running at 10 MHz - sufficient for most sensor interface and control tasks with reduced power consumption.
What peripheral interfaces are integrated into the R5F21192SP#U0?
The R5F21192SP#U0 integrates UART (two channels), clock-synchronous serial I/O (one channel), three timers (8-bit X/Z, 16-bit C), a 4-channel 1-bit comparator, 15-bit watchdog timer, and on-chip oscillators - all accessible via its 20-pin LSSOP footprint without external support ICs.
R5F21192SP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- R8C/1x/19
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not 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#U0 FAQ
1.How can I place an order for R5F21192SP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21192SP#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 R5F21192SP#U0 reliable?
The price and inventory of R5F21192SP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21192SP#U0 is usually 5 days.
3.What payment methods are accepted for R5F21192SP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21192SP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21192SP#U0?
R5F21192SP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21192SP#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 R5F21192SP#U0?
For technical support, including R5F21192SP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21192SP#U0 requirements.
6.How does Aetrix verify that R5F21192SP#U0 is sourced from the original manufacturer or authorized distributors?
All R5F21192SP#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 R5F21192SP#U0 meets industry standards.
7.What is the process for return or replacement of R5F21192SP#U0?
All R5F21192SP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21192SP#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 R5F21192SP#U0 part is unused and in its original packaging.
Return procedure for R5F21192SP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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