8-bit microcontroller featuring a PIC core architecture, operating at a maximum frequency of 40MHz. This FLASH memory device offers 4KB of program memory and 512B of RAM, with 36 programmable I/O pins. Integrated peripherals include I2C, SPI, UART, USART interfaces, 4 timers/counters, Brown-out Detect/Reset, POR, PWM, and a Watchdog Timer. Designed for surface mounting, it utilizes a TQFP package and operates within a temperature range of -40°C to 85°C, with a supply voltage range of 2V to 5.5V.
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Microchip PIC18LF4221T-I/PT technical specifications.
| Package/Case | TQFP |
| Core Architecture | PIC |
| Data Bus Width | 8b |
| Interface | I2C, SPI, UART, USART |
| Max Frequency | 40MHz |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Power Dissipation | 1W |
| Max Supply Voltage | 5.5V |
| Memory Size | 4KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 2V |
| Mount | Surface Mount |
| Number of Programmable I/O | 36 |
| Number of Timers/Counters | 4 |
| Oscillator Type | Internal |
| Package Quantity | 1200 |
| Packaging | Tape and Reel |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, HLVD |
| Radiation Hardening | No |
| RAM Size | 512B |
| RoHS Compliant | Yes |
| Series | PIC® 18F |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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