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| Part Number | R5F21181DSP#U0 |
| Datasheet | R5F21181DSP#U0 datasheet |
| Description | IC MCU 16BIT 4KB FLASH 20LSSOP |
| Manufacturer | Renesas Electronics America |
| Series | R8C/1x/18 |
| Part Status | Active |
| 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 | 4KB (4K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 384 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 4x1b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | Surface Mount |
| Supplier Device Package | 20-LSSOP (0.173", 4.40mm Width) |
| Base Part Number | 20-LSSOP |