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Renesas R5F211A2DD#U0
- Part No.:
- R5F211A2DD#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-SDIP (0.300", 7.62mm)
- Datasheet:
-
R5F211A2DD#U0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20SDIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,590
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Product details
Overview
R5F211A2DD#U0 from Renesas Electronics is a 16-bit single-chip microcontroller in the R8C/1A Group, featuring an R8C/Tiny Series CPU core, 8 KB flash program memory, 512 bytes RAM, and operation at up to 20 MHz (50 ns min instruction time). It integrates a 10-bit 4-channel ADC, three timers (8-bit ×2, 16-bit ×1), UART, clock-synchronous serial I/O, I²C bus interface, and LED drive capability. It targets cost-sensitive embedded control in consumer appliances and industrial sensors.
For engineers reviewing the R5F211A2DD#U0 datasheet, R5F211A2DD#U0 pinout, R5F211A2DD#U0 application, or R5F211A2DD#U0 equivalent, key selection considerations include its 20-pin SDIP package (PRDP0020BA-A), -40°C to +85°C operating range (D-grade), absence of on-chip data flash (distinguishing it from R8C/1B), and support for both external crystal and high-speed on-chip oscillator with frequency adjustment.
Technical Context
The R5F211A2DD#U0 implements the R8C/Tiny Series 16-bit CPU with 89 fundamental instructions and a 1 Mbyte linear address space. Its dual clock system includes a main crystal oscillator circuit (XIN/XOUT) and an adjustable high-speed on-chip oscillator, both supporting oscillation stop detection.
Peripheral integration centers on real-time control: Timer C provides input capture and output compare for motor timing; UART and I²C enable sensor and display communication; the 10-bit ADC supports analog signal acquisition from temperature or voltage sensors; and four dedicated LED drive ports simplify status indicator design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny Series 16-bit, 89 instructions, 1 Mbyte address space |
| Flash Memory | 8 KB program ROM, 1000 erase/write cycles, VCC = 2.7–5.5 V programming |
| RAM | 512 bytes SRAM for variables and stack, no data flash (R8C/1A Group) |
| Operating Voltage | 2.7–5.5 V - supports direct connection to 3.3 V or 5 V logic rails without level shifters |
| Max Clock Frequency | 20 MHz (50 ns min instruction time at VCC ≥ 3.0 V) - enables sub-50 µs interrupt latency |
| ADC | 10-bit resolution, 4 input channels (AN8–AN11), internal reference selectable via VREF pin |
| Temperature Range | -40°C to +85°C (D version) - qualified for industrial ambient environments |
Pinout & Package
Package: 20-pin plastic SDIP (PRDP0020BA-A), 300 mil width, 2.54 mm pitch - compatible with standard through-hole PCB assembly and manual prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 20 | P3_4 / SCS / SDA / CMP1_1 | I²C data line or SSU chip select; shared analog comparator input |
| 2, 19 | P3_3 / TCIN / INT3 / SSI00 / CMP1_0 | Timer C input capture, external interrupt, synchronous serial data, comparator input |
| 3 | RESET | Active-low hardware reset - requires external pull-up; initiates cold boot sequence |
| 4, 6 | XOUT / P4_7, XIN / P4_6 | Crystal oscillator I/O pair; XIN accepts external clock; XOUT is output-only |
| 5, 7 | VSS/AVSS, VCC/AVCC | Dual power domains: digital and analog supply pins - decoupling required per domain |
| 8 | MODE | Boot mode select - tied to VCC via resistor to enable normal flash execution |
| 9 | P4_5 / INT0 / RXD1 | External interrupt 0 or UART1 receive - supports wake-up from low-power modes |
| 10–18 | P1_0–P1_7, P3_5, P3_7, P4_2 | Configurable CMOS I/O (13 pins); P1_0–P1_3 double as LED drivers (sink up to 20 mA) |
Key Features
| Feature | Design Value |
|---|---|
| High-speed on-chip oscillator | Adjustable frequency reduces BOM cost by eliminating external crystal in non-critical timing apps |
| LED drive ports (P1_0–P1_3) | Integrated current sink capability eliminates external driver transistors for status indicators |
| Low-power modes (wait/stop) | 35 µA (wait) and 0.7 µA (stop) current draw extends battery life in portable sensors |
| I²C bus interface | Full-duplex, multi-master capable interface simplifies connection to EEPROMs, temperature sensors, and displays |
| On-chip voltage detector & POR | Ensures reliable reset during power ramp-up and brown-out conditions without external supervisor IC |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Microcontroller in washing machine control board managing motor sequencing, water valve actuation, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing real-time state machine, driving relays via GPIO, and reading front-panel buttons via KI0–KI3 interrupts. Use Value: Integrated UART and I²C allow direct communication with display modules and temperature sensors; LED drive ports reduce component count for cycle-status indicators. |
Use Scenario: Standalone environmental monitor measuring temperature, humidity, and voltage in factory equipment cabinets. IC Role / Device Role / Timing Role: Data acquisition engine sampling analog sensors via 10-bit ADC, processing readings, and transmitting over UART to gateway. Use Value: Low-power stop mode (<0.7 µA) enables multi-year battery operation; on-chip voltage detection prevents corruption during supply dips. |
| Office Equipment | Security System Keypad |
|
Use Scenario: Embedded controller in document scanner managing paper feed motors, CIS image sensor interface, and USB bridge logic. IC Role / Device Role / Timing Role: Peripheral coordinator handling timer-based motor PWM, UART command parsing, and GPIO-based sensor monitoring. Use Value: 20 MHz CPU speed ensures responsive button response and scan-trigger timing; 8 KB flash accommodates firmware with self-test routines. |
Use Scenario: Keypad controller in access control panel validating PIN entry and signaling door lock solenoid. IC Role / Device Role / Timing Role: Input processor scanning matrix keypad using KI0–KI3 interrupt inputs and driving LED feedback via P1_0–P1_3. Use Value: Dedicated key-input interrupt capability enables immediate wake-from-sleep on keypress; robust -40°C to +85°C rating ensures outdoor enclosure reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F211A2SP#U0 | Same core, memory, and peripherals; differs only in 20-pin LSSOP package (PLSP0020JB-A) | LSSOP offers smaller footprint but requires reflow soldering; SDIP (R5F211A2DD#U0) suits through-hole prototyping and repair | Select R5F211A2DD#U0 for manual assembly, field serviceability, or legacy SDIP-compatible boards. |
| R5F211B2DD#U0 | Identical package and pinout, but adds 2 KB data flash (1 KB ×2 blocks) and higher endurance (10,000 cycles) | Enables field firmware updates and parameter storage; not required if configuration is static or stored externally | Choose R5F211B2DD#U0 when runtime data logging or bootloader updates are needed; otherwise R5F211A2DD#U0 reduces cost. |
Compared with R5F211A2SP#U0, the R5F211A2DD#U0 offers identical functionality in a more serviceable SDIP package; versus R5F211B2DD#U0, it omits data flash to lower unit cost where non-volatile parameter storage isn't required.
Availability
R5F211A2DD#U0 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, and office equipment requiring stable component supply across extended production lifecycles.
Supply support for R5F211A2DD#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 industrial, automotive, and infrastructure markets.
The R8C/1A Group, including R5F211A2DD#U0, was designed for cost-optimized 16-bit embedded control in consumer and industrial applications where flash size, low power, and peripheral integration outweigh need for advanced connectivity.
FAQ
What is the maximum operating frequency of the R5F211A2DD#U0?
The R5F211A2DD#U0 operates at up to 20 MHz when supplied with VCC ≥ 3.0 V, achieving a minimum instruction execution time of 50 ns. At 10 MHz, it supports down to 2.7 V supply. The high-speed on-chip oscillator can be adjusted in software to fine-tune timing without external components.
Does the R5F211A2DD#U0 include data flash memory?
No, the R5F211A2DD#U0 belongs to the R8C/1A Group and contains only 8 KB of program flash memory with 1,000 erase/write cycles. It does not include dedicated data flash - that feature is exclusive to the R8C/1B Group (e.g., R5F211B2DD#U0).
Which package type does the R5F211A2DD#U0 use?
The R5F211A2DD#U0 uses the PRDP0020BA-A package: a 20-pin plastic SDIP (Small Outline Dual In-line Package) with 300 mil body width and 2.54 mm lead pitch, optimized for through-hole mounting and manual rework.
What are the key low-power features of the R5F211A2DD#U0?
The R5F211A2DD#U0 supports wait mode (35 µA typical at 3.0 V) and stop mode (0.7 µA typical at 3.0 V), both with peripheral clocks disabled. Wake-up is supported via external interrupts (INT0–INT3), key-input interrupts (KI0–KI3), or timer events - enabling battery-powered operation for years.
Can the R5F211A2DD#U0 drive LEDs directly?
Yes, the R5F211A2DD#U0 provides four dedicated LED drive ports (P1_0 through P1_3) capable of sinking up to 20 mA per pin. This allows direct connection of common-anode LEDs without external driver transistors, reducing BOM count and board area.
R5F211A2DD#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-SDIP (0.300", 7.62mm)
- Series:
- R8C/1x/1A
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, SIO, SSU, 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:
- -
- RAM Size:
- 512 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:
- Through Hole
- Supplier Device Package:
R5F211A2DD#U0 FAQ
1.How can I place an order for R5F211A2DD#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F211A2DD#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 R5F211A2DD#U0 reliable?
The price and inventory of R5F211A2DD#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F211A2DD#U0 is usually 5 days.
3.What payment methods are accepted for R5F211A2DD#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F211A2DD#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F211A2DD#U0?
R5F211A2DD#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F211A2DD#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 R5F211A2DD#U0?
For technical support, including R5F211A2DD#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F211A2DD#U0 requirements.
6.How does Aetrix verify that R5F211A2DD#U0 is sourced from the original manufacturer or authorized distributors?
All R5F211A2DD#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 R5F211A2DD#U0 meets industry standards.
7.What is the process for return or replacement of R5F211A2DD#U0?
All R5F211A2DD#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F211A2DD#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 R5F211A2DD#U0 part is unused and in its original packaging.
Return procedure for R5F211A2DD#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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