PIC16C57C-04/P 8-Bit CMOS Microcontroller DIP-28 (PIC16C57C-04 I/P DIP IC) The PIC16C57C-04/P is a member of the baseline family of 8-bit CMOS microcontrollers from Microchip. It features a high-performance RISC CPU with only 33 single-word instructions. This specific variant is optimized for 4MHz operation and provides a significantly higher I/O count compared to other baseline models, offering 20 bidirectional I/O pins in a 28-pin DIP package. It includes 2048 words of OTP (One-Time Programmable) EPROM program memory and 72 bytes of RAM. Its simple architecture and high I/O density make it a reliable choice for controlling multiple peripherals simultaneously in cost-sensitive applications.
This IC is primarily used in industrial controllers, home appliances, and multi-segment LED display drivers. It is a fundamental component for electronics projects in India for building complex logic sequencers, multi-relay control boards, and learning parallel I/O management on a large-format 8-bit PIC platform.
Key Features
- High-performance RISC CPU with 33 single-word instructions
- 20 bidirectional I/O pins with individual direction control
- 2048 words of OTP EPROM program memory
- 8-bit real-time clock/counter (TMR0) with 8-bit programmable prescaler
- Watchdog Timer (WDT) with independent on-chip RC oscillator
- Wide operating voltage range (2.5V to 6.25V)
- Low power consumption (under 2mA at 5V, 4MHz)
- High current source/sink for direct LED drive (25mA)
- Power-on Reset (POR) and Device Reset Timer (DRT)
Specifications
- IC Type = 8-Bit CMOS Microcontroller (OTP)
- Program Memory = 2048 Words (3KB)
- Data RAM = 72 Bytes
- Maximum Speed = 4MHz
- I/O Pins = 20 (Ports A, B, and C)
- Supply Voltage = 2.5V to 6.25V (5V Typical)
- Current Sink/Source = 25mA
- Package Type = PDIP-28
- Number of Pins = 28
- Mounting Type = Through-Hole
- Operating Temperature = -40 to 85 degrees Celsius
Interfaces
- PIN 1, 2, 27, 28 (RA0 to RA3) = 4-Bit Port A I/O
- PIN 6 to 13 (RB0 to RB7) = 8-Bit Port B I/O
- PIN 15 to 22 (RC0 to RC7) = 8-Bit Port C I/O
- PIN 26 (OSC1/CLKIN) = Oscillator Input
- PIN 25 (OSC2/CLKOUT) = Oscillator Output
- PIN 24 (T0CKI) = Timer 0 Clock Input
- PIN 14 (VSS) = Ground (0V)
- PIN 4 (VDD) = Positive Supply Voltage (5V)
- PIN 23 (MCLR) = Master Clear Input (Active Low)
