| Technical/Catalog Information | PIC16C66T-04E/SO |
| Vendor | Microchip Technology |
| Category | Integrated Circuits (ICs) |
| Program Memory Size | 14KB (8K x 14) |
| RAM Size | 368 x 8 |
| Number of I /O | 22 |
| Package / Case | 28-SOIC (7.5mm Width) |
| Speed | 4MHz |
| Controller Series | PIC16C |
| Oscillator Type | External |
| Packaging | Tape & Reel (TR) |
| Program Memory Type | OTP |
| EEPROM Size | - |
| Core Processor | PIC |
| Data Converters | - |
| Core Size | 8-Bit |
| Operating Temperature | -40°C ~ 125°C |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Voltage - Supply (Vcc/Vdd) | 4 V ~ 6 V |
| Drawing Number | * |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | PIC16C66T 04E SO PIC16C66T04ESO |