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| Part Number | R5F21191DSP#U0 | R5F211B1DSP#U0 | R5F21194DSP#U0 | R5F21191SP#U0 | R5F211A1DSP#U0 | R5F21192DSP#U0 | R5F21193DSP#U0 | R5F21181DSP#U0 |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc |
| Product Status | Obsolete | Not For New Designs | Not For New Designs | Obsolete | Obsolete | Active | Active | Not For New Designs |
| Core Processor | R8C | R8C | R8C | R8C | R8C | R8C | R8C | R8C |
| Core Size | 16-Bit | 16-Bit | 16-Bit | 16-Bit | 16-Bit | 16-Bit | 16-Bit | 16-Bit |
| Speed | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz |
| Connectivity | SIO, UART/USART | I²C, SIO, SSU, UART/USART | SIO, UART/USART | SIO, UART/USART | I²C, SIO, SSU, UART/USART | SIO, UART/USART | SIO, UART/USART | SIO, UART/USART |
| Peripherals | LED, POR, Voltage Detect, WDT | LED, POR, Voltage Detect, WDT | LED, POR, Voltage Detect, WDT | LED, POR, Voltage Detect, WDT | LED, POR, Voltage Detect, WDT | LED, POR, Voltage Detect, WDT | LED, POR, Voltage Detect, WDT | LED, POR, Voltage Detect, WDT |
| Number of I/O | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Program Memory Size | 4KB (4K x 8) | 4KB (4K x 8) | 16KB (16K x 8) | 4KB (4K x 8) | 4KB (4K x 8) | 8KB (8K x 8) | 12KB (12K x 8) | 4KB (4K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash |
| EEPROM Size | 2K x 8 | - | 2K x 8 | 2K x 8 | - | 2K x 8 | 2K x 8 | - |
| RAM Size | 384 x 8 | 384 x 8 | 1K x 8 | 384 x 8 | 384 x 8 | 512 x 8 | 768 x 8 | 384 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Data Converters | - | A/D 4x10b | - | - | A/D 4x10b | - | - | - |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -20°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-LSSOP (0.173", 4.40mm Width) | 20-LSSOP (0.173", 4.40mm Width) | 20-LSSOP (0.173", 4.40mm Width) | 20-LSSOP (0.173", 4.40mm Width) | 20-LSSOP (0.173", 4.40mm Width) | 20-LSSOP (0.173", 4.40mm Width) | 20-LSSOP (0.173", 4.40mm Width) | 20-LSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 20-LSSOP | 20-LSSOP | 20-LSSOP | 20-LSSOP | 20-LSSOP | 20-LSSOP | 20-LSSOP | 20-LSSOP |
