8-bit microcontroller featuring 12KB FLASH memory and 640B RAM. Operates at up to 40MHz with an 8-bit data bus width. Supports I2C, SPI, and UART/USART interfaces. Includes 32 programmable I/O pins, 3 timers/counters, and integrated peripherals such as PWM, WDT, and Brown-out Detect. Packaged in a 44-TQFP surface-mount format, this RoHS-compliant component operates from 2V to 5.5V and is rated for -40°C to 85°C.
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Microchip PIC18LF4439-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 |
| Memory Size | 12KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Max Power Dissipation | 1W |
| Max Supply Voltage | 5.5V |
| Min Supply Voltage | 2V |
| Mount | Surface Mount |
| Number of Programmable I/O | 32 |
| Number of Timers/Counters | 3 |
| Oscillator Type | Internal |
| Package Quantity | 160 |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, LVD |
| Radiation Hardening | No |
| RAM Size | 640B |
| RoHS Compliant | Yes |
| Series | PIC® 18F |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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