PIC18F4520 8-bit PIC Microcontroller
The PIC18F4520 is an enhanced 8-bit Flash microcontroller from Microchip’s PIC18 family that targets mid-range embedded designs where a balance of performance, peripherals and low-power modes is required. Built on the PIC18 architecture, it provides ample program memory and data RAM for moderately complex applications while keeping code density and real-time response high. The device is designed to be easy to integrate: standard I/O, analogue inputs, timers and serial peripherals are arranged to simplify common embedded tasks such as sensing, control and communication.
Because it combines a fast CPU (DC–40 MHz operation with PLL options), a 10-bit A/D, multiple UART/SPI/I²C interfaces and PWM/CCP resources, the PIC18F4520 can handle mixed analog/digital tasks (for example, sensor acquisition plus motor or power control) without immediate need for external support chips. Its internal oscillator options and power-managed modes let designers optimize for battery-powered or always-on systems where minimizing quiescent current matters.
The device is also developer-friendly: it supports in-circuit serial programming (ICSP), in-circuit debugging (ICD) and a broad ecosystem of MPLAB tools and compilers, which speeds prototyping and field updates. Packaging and I/O variants (28, 40/44 pin options) make the PIC18F4520 flexible for compact PCBs or multi-I/O boards, letting you scale the same core design across several form factors.
Features:
- Enhanced Flash program memory (self-programmable under software control).
- C-compiler-optimized architecture (optional extended instruction set).
- nano Watt power-management modes: Run, Idle and Sleep (very low standby currents).
- Internal oscillator block with multiple selectable frequencies and PLL up to 4×.
- 10-bit A/D converter (up to 13 channels on 40/44-pin devices).
- Enhanced/standard CCP modules with PWM (ECCP on 40/44-pin variants).
- Enhanced Addressable EUSART (auto-baud, LIN support) and MSSP (SPI/I²C).
- In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD) support.
Specifications:
| Specification | Detail |
|---|---|
| Core: | 8-bit PIC18 family. |
| Max CPU / Clock: | DC – 40 MHz (with PLL options). |
| Program Memory: | 32 KB (32,768 bytes) Flash. |
| Instruction Words: | 16,384 instructions (single-word). |
| Data (SRAM): | 1,536 bytes. |
| EEPROM: | 256 bytes. |
| ADC: | 10-bit ADC, up to 13 channels (40/44-pin devices). |
| I/O Ports: | Up to 5 bidirectional ports (depends on package). |
| Timers: | Four timers (Timer0–Timer3). |
| CCP / ECCP: | CCP modules (PWM); ECCP on 40/44-pin devices. |
| Serial Peripherals: | MSSP (SPI/I²C), Enhanced EUSART (UART). |
| Voltage (standard): | Standard (F) devices: VDD ≈ 4.2–5.5 V; Low-voltage (LF) variants: 2.0–5.5 V. |
| Temperature range: | Industrial: −40°C to +85°C (see datasheet for extended options). |
| Package options: | 28-pin (PDIP/SOIC/QFN) and 40/44-pin (PDIP/QFN/TQFP) variants. |
Pinout Diagram:
Footprint Diagram:
Applications:
- Embedded control and general-purpose microcontroller applications.
- Data acquisition and sensor interfacing.
- Motor and power control with PWM.
- Serial communications and networking (RS-232, LIN, SPI, I²C).
Package Contents:
- 1x PIC18F4520 8-bit PIC Microcontroller
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