Overview

The PIC18F4520 features 32K bytes of program memory, 1536 bytes of SRAM and 256 bytes of EEPROM data memory, 36 I/O pins, 13 channels of 10-bit A/D, two analog comparators, two capture/compare/PWM modules, a synchronous serial port that can be configured as either 3-wire SPI or 2-wire I2C bus and an enhanced USART. The architecture is optimised for C compilers and the device features a 4x phase lock loop frequency multiplier allowing up to 10 MIPS performance. The part is supplied in a 40-pin DIP package, has an operating speed up to 40MHz (with 4x PLL), an operating temperature range of -40°C to +85°C, and is for 5V operation.

Features

• C compiler optimised architecture.
• 75 instructions (83 with extended instruction set enabled).
• 4x phase lock loop (PLL) frequency multiplier allows clock speeds up to 40MHz.
• Up to 10 MIPS performance.
• Internal oscillator block.
• 20 interrupt sources.
• Priority levels for interrupts.
• 8 x 8 single-cycle hardware multiplier.
• Power management features.
• 32K bytes (16384 x 16-bit words) of Flash program memory.
• 1536 bytes of SRAM data memory.
• 256 bytes of EEPROM data memory.
• 36 I/O pins with individual direction control.
• High current 25mA source/sink for direct LED drive.
• 13 channels of 10-bit A/D.
• Two analog comparators.
• Four timer/counters (one 8-bit and three 16-bit).
• Capture, compare, PWM (CCP) module.
• Enhanced capture, compare, PWM (ECCP) module.
• Enhanced USART module.
• Master synchronous serial port (MSSP) module supporting I2C and SPI.
• Parallel slave port (PSP).
• Programmable brown-out reset.
• Programmable high/low-voltage detect.
• In-circuit serial programming (ICSP) and in-circuit debug (ICD) via two pins.
• 5V operation.
• Operating temperature range of-40°C to +85°C.
• 40-pin DIP package.