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| Part Number | R5F2138AWJFP#W4 | 
| Datasheet | R5F2138AWJFP#W4 datasheet | 
| Description | IC MCU 16BIT 96KB FLASH 80LQFP | 
| Manufacturer | Renesas Electronics America | 
| Series | R8C/3x/38W | 
| Part Status | Active | 
| Core Processor | R8C | 
| Core Size | 16-Bit | 
| Speed | 20MHz | 
| Connectivity | I²C, LINbus, SIO, SSU, UART/USART | 
| Peripherals | POR, PWM, Voltage Detect, WDT | 
| Number of I/O | 75 | 
| Program Memory Size | 96KB (96K x 8) | 
| Program Memory Type | FLASH | 
| EEPROM Size | - | 
| RAM Size | 8K x 8 | 
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V | 
| Data Converters | A/D 20x10b | 
| Oscillator Type | Internal | 
| Operating Temperature | -40°C ~ 85°C (TA) | 
| Package / Case | Surface Mount | 
| Supplier Device Package | 80-LQFP | 
| Base Part Number | 80-LQFP (12x12) |