| Part Number | PIC18LF55K42T-I/PT | PIC18LF57K42T-I/PT | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers | 
|   |   | |
| Product Status | Active | Active | 
| Core Processor | PIC | PIC | 
| Core Size | 8-Bit | 8-Bit | 
| Speed | 64MHz | 64MHz | 
| Connectivity | I²C, LINbus, SPI, UART/USART | I²C, LINbus, SPI, UART/USART | 
| Peripherals | Brown-out Detect/Reset, LVD, POR, PWM, WDT | Brown-out Detect/Reset, DMA, HLVD, POR, PWM, WDT | 
| Number of I/O | 44 | 44 | 
| Program Memory Size | 32KB (16K x 16) | 128KB (64K x 16) | 
| Program Memory Type | Flash | Flash | 
| EEPROM Size | 256 x 8 | 1K x 8 | 
| RAM Size | 2K x 8 | 8K x 8 | 
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 
| Data Converters | A/D 43x12b; D/A 1x5b | A/D 43x12b; D/A 1x5b | 
| Oscillator Type | Internal | Internal | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 48-TQFP Exposed Pad | 48-TQFP Exposed Pad | 
| Supplier Device Package | 48-TQFP-EP (7x7) | 48-TQFP-EP (7x7) |