8-bit Flash microcontroller featuring an 8b data bus width and a maximum operating frequency of 40MHz. This through-hole mounted device offers 36 programmable I/O pins, 8KB of FLASH memory, and 512B of RAM. Integrated peripherals include I2C, SPI, UART, USART interfaces, 4 timers/counters, and a watchdog timer. Operating supply voltage ranges from 4.2V to 5.5V, with a typical 5V operation. The PDIP package is RoHS compliant and operates across a temperature range of -40°C to 125°C.
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Microchip PIC18F4321-E/P technical specifications.
| Package/Case | PDIP |
| Core Architecture | PIC |
| Data Bus Width | 8b |
| Frequency | 40MHz |
| Interface | I2C, SPI, UART, USART |
| Lead Free | Lead Free |
| Max Frequency | 40MHz |
| Max Operating Temperature | 125°C |
| Min Operating Temperature | -40°C |
| Max Power Dissipation | 1W |
| Max Supply Voltage | 5.5V |
| Memory Size | 8KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 4.2V |
| Mount | Through Hole |
| Number of Programmable I/O | 36 |
| Number of Timers/Counters | 4 |
| Operating Supply Voltage | 5V |
| Oscillator Type | Internal |
| Package Quantity | 10 |
| Packaging | Rail/Tube |
| 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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