PIC18F452-I/P 8-Bit High-Performance Flash Microcontroller DIP-40 (PIC18F452-I/P DIP IC)
The PIC18F452-I/P is a high-performance, 8-bit Flash-based microcontroller from Microchip's advanced PIC18 family. Housed in a standard 40-pin DIP package, it is a robust and powerful upgrade from the PIC16 series, featuring an enhanced RISC architecture with 77 single-word instructions and a hardware 8x8 multiplier for faster math operations. It offers 32KB of Flash program memory, 1536 bytes of RAM, and 256 bytes of high-endurance EEPROM. Key peripherals include an 8-channel 10-bit Analog-to-Digital Converter (ADC), dual Capture/Compare/PWM (CCP) modules, and a Master Synchronous Serial Port (MSSP) supporting SPI and I2C. With instruction speeds up to 10 MIPS at 40MHz, it is a premier choice for complex, real-time embedded applications requiring high I/O density.
This IC is primarily used in industrial automation, telecommunications equipment, and automotive instrumentation. It is a favorite for professional and educational electronics projects in India for building DIY complex robotics, advanced motor control systems, and data acquisition units that require high-speed processing and substantial memory in a 40-pin DIP footprint.
Key Features
- High-performance RISC CPU with 77 instructions (optimized for C)
- Hardware 8x8 Single-Cycle Multiplier for accelerated math
- 8-channel 10-bit Analog-to-Digital Converter (ADC)
- 32KB Flash program memory (enhanced endurance)
- 256 Bytes of high-endurance Data EEPROM (1,000,000 cycles)
- Two Capture/Compare/PWM (CCP) modules
- Master Synchronous Serial Port (MSSP) with SPI and I2C modes
- Addressable USART for standard serial communication (RS-232/RS-485)
- Parallel Slave Port (PSP) for fast 8-bit microprocessor interfacing
- 34 bidirectional I/O pins with high current source/sink (25mA)
Specifications
- IC Type = 8-Bit Flash Microcontroller
- Program Memory = 32KB (16384 Words)
- Data RAM = 1536 Bytes
- Data EEPROM = 256 Bytes
- ADC Resolution = 10-Bit (8 Channels)
- Maximum Speed = 40MHz (10 MIPS)
- I/O Pins = 34 (Ports A, B, C, D, and E)
- Supply Voltage = 4.2V to 5.5V
- Current Sink/Source = 25mA
- Package Type = PDIP-40
- Number of Pins = 40
- Mounting Type = Through-Hole
- Operating Temperature = -40 to 85 degrees Celsius
Interfaces
- PIN 1 (MCLR/VPP) = Master Clear / Programming Voltage
- PIN 2 to 7 (RA0 to RA5) = Port A / Analog Inputs / Vref / LVD
- PIN 8 to 10 (RE0 to RE2) = Port E / Analog Inputs / Parallel Control
- PIN 11, 32 (VDD) = Positive Supply Voltage (5V)
- PIN 12, 31 (VSS) = Ground (0V)
- PIN 13, 14 (OSC1, OSC2) = External Crystal/Oscillator Inputs
- PIN 15 to 18, 23 to 26 (RC0 to RC7) = Port C / Timers / CCP / USART / SPI / I2C
- PIN 19 to 22, 27 to 30 (RD0 to RD7) = 8-Bit Port D / Parallel Slave Port
- PIN 33 to 40 (RB0 to RB7) = 8-Bit Port B / External Interrupts / ICSP
