My Inquiry
My Account
Renesas R5F1211CASP#30
- Part No.:
- R5F1211CASP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1211CASP#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 10LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,856
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F1211CASP#30 from Renesas Electronics is a 10-pin, 32 KB flash RL78/G16 16-bit microcontroller with integrated capacitive touch sensing unit (15-channel CTSU), 8/10-bit ADC (4-channel), and real-time clock (99-year calendar). It operates from 2.4–5.5 V, supports HALT/STOP low-power modes, and delivers 61 µA/MHz operating current at 125°C - ideal for battery-powered consumer and industrial HMI control applications.
For engineers reviewing the R5F1211CASP#30 datasheet, R5F1211CASP#30 pinout, R5F1211CASP#30 application, or R5F1211CASP#30 equivalent, key selection criteria include its LSSOP-10 package, 32 KB code flash + 1 KB data flash + 2 KB RAM memory configuration, 16 MHz high-speed on-chip oscillator (±1.0% accuracy), and support for simplified SPI/I²C/UART interfaces in space-constrained embedded designs.
Technical Context
The R5F1211CASP#30 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, enabling instruction execution times ranging from 0.0625 µs (16 MHz) to 30.5 µs (32.768 kHz). Its memory subsystem includes 32 KB code flash (1 KB block size), 1 KB data flash (512 B blocks, 1M rewrite cycles), and 2 KB on-chip RAM.
Peripheral integration centers on human-machine interface support: 15-channel capacitive touch sensing unit (CTSU) with self- and mutual-capacitance modes, 4-channel 8/10-bit ADC with internal reference (0.815 V) and temperature sensor, dual comparators, and three serial interfaces (simplified SPI, UART, simplified I²C) - all configurable via peripheral I/O redirection registers (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 32 KB code flash (1 KB erase blocks); 1 KB data flash (512 B blocks, 1M rewrites) |
| RAM | 2 KB on-chip SRAM for program/data storage and stack operations |
| Operating Voltage | 2.4–5.5 V single supply - enables direct Li-ion/Li-Po or 3.3/5 V rail operation |
| Temperature Range | −40 to +85°C (A-grade) - certified for consumer appliance and portable electronics use |
| Oscillator | High-speed on-chip oscillator selectable from 1–16 MHz (±1.0% @ 2.4–5.5 V, −20 to +85°C) |
| ADC | 8/10-bit resolution, 4 analog inputs, internal 0.815 V reference and temperature sensor |
| CTSU | 15-channel capacitive touch sensing unit supporting up to 15 self-capacitance keys or 16 mutual-capacitance keys |
Pinout & Package
Package: 10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), RoHS-compliant, tray-packaged (#30 specification).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/RESET/INTP1/(VCOUT0)/(INTP0) | Reset input / External interrupt 1 / Comparator output 0 | Active-low reset with glitch filter; dual-function interrupt input; VCOUT0 usable as analog comparator output |
| P40/TOOL0/INTP2/(PCLBUZ0)/(TI01/TO01) | Debug interface / Interrupt 2 / Buzzer output / Timer I/O | Enables on-chip debugging via TOOL0; PCLBUZ0 drives piezo buzzer; TI01/TO01 supports timer capture/compare |
| P137/INTP0/TI00 | External interrupt 0 / Timer I/O | Dedicated wake-up interrupt source; TI00 provides timer input capture or output compare capability |
| VSS | Ground reference | Primary digital ground connection - must be low-impedance and decoupled near VDD pin |
| VDD | Power supply | Single 2.4–5.5 V supply for core and I/O; requires local 100 nF ceramic decoupling |
| P04/ANI3/IVREF0/INTP3/TS04/SDAA0/(TI01/TO01) | Analog input 3 / Internal voltage reference / Interrupt 3 / Touch sense / I²C slave address A0 | Configurable as ADC channel, reference source, or CTSU electrode; SDAA0 enables multi-slave I²C addressing |
| P03/ANI2/IVCMP0/INTP4/TS03/TO00/SCLA0/(TI00) | Analog input 2 / Comparator reference / Interrupt 4 / Touch sense / I²C slave address A0 / Timer output | Supports analog measurement, comparator threshold setting, touch sensing, and I²C bus arbitration |
| P02/PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP/TI01/TO01/SCK00/SCL00 | Buzzer drive / Analog input 1 / Comparator output / Interrupt 7 / Touch sense / Timer I/O / SPI/I²C clock | Multi-function pin for audio feedback, analog sensing, touch electrode, and synchronous serial communication clocking |
| P01/TOOLRxD/ANI0/INTP5/TS00/TI02/TO02/SI00/RxD0/SDA00/(TI01/TO01)/(SDAA0) | Debug receive / Analog input 0 / Interrupt 5 / Touch sense / Timer I/O / SPI/I²C data / I²C slave address A0 | Primary debug and serial interface pin; supports UART/SPI/I²C and simultaneous touch sensing on TS00 |
| P00/TOOLTxD/INTP6/SO00/TxD0/(TI02/TO02)/(SCLA0) | Debug transmit / Interrupt 6 / SPI/I²C data / UART transmit / Timer I/O / I²C slave address A0 | Full-duplex debug and serial communication; SO00/TxD0 enable SPI master or UART TX; SCLA0 supports I²C bus addressing |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 61 µA/MHz active current at 125°C - reduces thermal load and extends battery life in always-on devices |
| Capacitive touch sensing unit (CTSU) | 15-channel hardware-accelerated touch engine with self/mutual capacitance modes - eliminates external touch controller IC |
| Integrated real-time clock (RTC2) | 99-year calendar with alarm and clock correction - enables time-stamped logging without external RTC chip |
| On-chip debug and self-programming | Full on-chip debug via TOOL0/TOOLRxD/TOOLTxD; flash self-write without boot swap - simplifies field firmware updates |
| Flexible serial interface set | Up to 3 simplified SPI, 3 UART, and 3 simplified I²C channels - supports mixed-protocol sensor and display connectivity |
| Low-voltage operation | 2.4 V minimum supply enables compatibility with aging batteries and energy-harvesting sources |
Applications
| Home Appliance Control Panel | Smart Thermostat Interface |
|---|---|
|
Use Scenario: Touch-enabled front panel for microwave ovens, washing machines, or air conditioners with LED indicators and buzzer feedback. IC Role / Device Role / Timing Role: Main system controller executing UI logic, reading capacitive buttons, driving buzzer (PCLBUZ0), managing RTC-based timers, and communicating with power stage MCU via UART. Use Value: Single-chip solution replaces discrete touch controller + MCU + RTC, reducing BOM count and PCB area in 10-pin LSSOP footprint. |
Use Scenario: Compact wall-mounted thermostat with ambient temperature sensing, LCD display, and Wi-Fi module communication. IC Role / Device Role / Timing Role: Sensor hub aggregating ADC readings (temperature, humidity), managing capacitive up/down buttons, maintaining accurate time via RTC2, and relaying data over UART to ESP32 host. Use Value: Integrated 4-channel ADC with internal reference and 15-channel CTSU eliminate external signal conditioning and touch IC, lowering system cost. |
| Portable Medical Monitor | Industrial Sensor Node |
|
Use Scenario: Battery-powered pulse oximeter or blood glucose meter requiring low standby current and tactile user input. IC Role / Device Role / Timing Role: System manager handling touch key detection (TS00–TS04), analog sensor acquisition (ANI0–ANI3), buzzer alerts (PCLBUZ0), and STOP-mode wake-up on button press. Use Value: 61 µA/MHz active current and HALT/STOP modes extend battery life beyond 12 months on coin cell; LSSOP-10 eases layout in ultra-thin enclosures. |
Use Scenario: DIN-rail mounted environmental sensor node monitoring temperature, humidity, and occupancy in factory settings. IC Role / Device Role / Timing Role: Edge processor acquiring analog sensor data, performing basic threshold checks, timestamping events via RTC2, and transmitting alerts over RS-485 (via UART + transceiver). Use Value: −40 to +85°C rating and 2.4–5.5 V operation ensure reliability across industrial voltage rails and ambient conditions without external level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1211AASP#30 | 16 KB code flash (vs. 32 KB), same 10-pin LSSOP package, identical peripherals and pinout | Suitable for simpler UIs with smaller firmware footprints; lacks headroom for future feature expansion | Select when firmware size remains under 14 KB and no future code growth is anticipated |
| R5F1214CASP#30 | 16-pin SSOP package, adds 2 extra ADC channels (6 total), 2 extra CTSU channels (17 total), and X1/X2 crystal oscillator pins | Enables more complex HMI with additional sensors or crystal-referenced timing; requires PCB redesign | Choose when higher analog channel count or external crystal accuracy is required, accepting larger footprint |
Compared with R5F1211AASP#30 and R5F1214CASP#30, the R5F1211CASP#30 uniquely balances 32 KB flash capacity, 10-pin compactness, and full CTSU/RTC2 functionality - making it optimal for cost-sensitive, space-constrained consumer HMI where firmware scalability matters but board area is fixed.
Availability
R5F1211CASP#30 is available at Aetrix Electronics and suitable for home appliance control panels, smart thermostats, and portable medical monitors requiring stable component supply across consumer-grade temperature ranges and long production lifecycles.
Supply support for R5F1211CASP#30 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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G16 product line delivers ultra-low-power 16-bit MCUs optimized for human-machine interface applications - integrating capacitive touch, precision analog, and real-time clock functions to replace multi-chip solutions in cost-sensitive embedded systems.
FAQ
What is the maximum operating frequency of the R5F1211CASP#30?
The R5F1211CASP#30 supports a maximum high-speed on-chip oscillator frequency of 16 MHz, delivering a minimum instruction execution time of 0.0625 µs. This frequency is factory-trimmed to ±1.0% accuracy across VDD = 2.4–5.5 V and TA = −20 to +85°C. The device also supports ultra-low-speed operation at 32.768 kHz for RTC and deep-sleep modes.
Does the R5F1211CASP#30 support external crystal oscillators?
No, the R5F1211CASP#30 does not include X1/X2 crystal oscillator pins. Its 10-pin LSSOP package omits external clock inputs - all timing relies on the internal high-speed (1–16 MHz) and subsystem (32.768 kHz) oscillators. For crystal-referenced timing, consider the 16-pin R5F1214CASP#30 or 20-pin variants which provide dedicated XT1/XT2 pins.
How many capacitive touch channels does the R5F1211CASP#30 support?
The R5F1211CASP#30 integrates a 15-channel capacitive touch sensing unit (CTSU). It supports self-capacitance mode (15 independent keys, one per pin) and mutual-capacitance mode (up to 16 keys using matrix configuration across 15 pins). Touch electrodes map directly to pins P00–P04 and P125–P137 as defined in the CTSU function table.
What debug interface does the R5F1211CASP#30 use?
The R5F1211CASP#30 uses the on-chip debug interface accessible via three dedicated pins: P125 (RESET), P40 (TOOL0), and P01/P00 (TOOLRxD/TOOLTxD). This 3-wire interface supports full breakpoint debugging, memory inspection, and flash programming without requiring JTAG or SWD adapters - reducing development tooling cost.
Is the R5F1211CASP#30 pin-compatible with other RL78/G16 10-pin variants?
Yes, the R5F1211CASP#30 shares identical pinout, package dimensions, and electrical characteristics with all other 10-pin RL78/G16 variants including R5F1211AASP#30, R5F1211CGSP#30, and R5F1211CMSP#30. Only flash size (16 KB vs. 32 KB) and temperature grade (A/G/M) differ - enabling drop-in replacement during design iteration or qualification.
R5F1211CASP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G16
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- Capacitive Touch, POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 7
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 4x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1211CASP#30 FAQ
1.How can I place an order for R5F1211CASP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1211CASP#30 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 R5F1211CASP#30 reliable?
The price and inventory of R5F1211CASP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1211CASP#30 is usually 5 days.
3.What payment methods are accepted for R5F1211CASP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1211CASP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1211CASP#30?
R5F1211CASP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1211CASP#30 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 R5F1211CASP#30?
For technical support, including R5F1211CASP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1211CASP#30 requirements.
6.How does Aetrix verify that R5F1211CASP#30 is sourced from the original manufacturer or authorized distributors?
All R5F1211CASP#30 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 R5F1211CASP#30 meets industry standards.
7.What is the process for return or replacement of R5F1211CASP#30?
All R5F1211CASP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1211CASP#30, 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 R5F1211CASP#30 part is unused and in its original packaging.
Return procedure for R5F1211CASP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F1211CASP#30 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
