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| PartNumber | CY8C3866PVI-021 | CY8C3866PVI-005 | CY8C3866PVI-021ES2 |
| Description | 8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V | 8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V | |
| Manufacturer | Cypress Semiconductor | Cypress Semiconductor | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SSOP-48 | SSOP-48 | - |
| Series | CY8C3866 | CY8C3866PVI | - |
| Core | 8051 | 8051 | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 67 MHz | 67 MHz | - |
| Program Memory Size | 64 kB | 64 kB | - |
| Data RAM Size | 8 kB | 8 kB | - |
| ADC Resolution | 20 bit | 20 bit | - |
| Number of I/Os | 28 I/O | 28 I/O | - |
| Operating Supply Voltage | 1.8 V | 1.8 V | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tube | Tube | - |
| Program Memory Type | Flash | Flash | - |
| Brand | Cypress Semiconductor | Cypress Semiconductor | - |
| Data RAM Type | SRAM | SRAM | - |
| Interface Type | I2C, SPI, UART, USB | I2C, SPI, UART, USB | - |
| Analog Supply Voltage | 1.8 V | 1.8 V | - |
| DAC Resolution | 8 bit | 8 bit | - |
| I/O Voltage | 1.8 V | 1.8 V | - |
| Moisture Sensitive | Yes | - | - |
| Number of Timers/Counters | 4 Timer | 4 Timer | - |
| Processor Series | CY8C38 | CY8C38 | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 60 | - | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 1.89 V | 1.89 V | - |
| Supply Voltage Min | 1.71 V | 1.71 V | - |
| Tradename | PSoC | - | - |
| Unit Weight | 0.021175 oz | 0.021175 oz | - |