PIC12C509A-04/P 8-Bit CMOS Microcontroller DIP-8 (PIC12C509A DIP IC) The PIC12C509A is a low-cost, high-performance 8-bit fully static CMOS microcontroller. It features a high-performance RISC CPU with only 33 single-word instructions. This IC is the higher-memory version of the PIC12C508A, offering 1024 words of OTP (One-Time Programmable) EPROM program memory and 41 bytes of RAM. It includes an internal 4MHz RC oscillator, allowing for a complete controller solution with minimal external components. Its small 8-pin footprint and low power consumption make it ideal for cost-sensitive applications requiring basic logic and control functions.
This IC is primarily used in consumer electronics, automotive controls, and low-power remote transmitters. It is a reliable component for electronics projects in India involving small-scale automation, custom timing circuits, and learning assembly language for 8-bit PIC microcontrollers in a compact DIP format.
Key Features
- High-performance RISC CPU with 33 instructions
- Internal 4MHz RC oscillator with programmable calibration
- In-Circuit Serial Programming (ICSP) support
- Wide operating voltage range (2.5V to 5.5V)
- Extremely low power consumption (under 2uA standby at 3V)
- 8-bit real-time clock/counter (TMR0) with 8-bit programmable prescaler
- Watchdog Timer (WDT) with independent on-chip RC oscillator
- Power-on Reset (POR) and Device Reset Timer (DRT)
- High current source/sink for direct LED drive (25mA)
Specifications
- IC Type = 8-Bit CMOS Microcontroller (OTP)
- Program Memory = 1024 Words (1.5KB)
- Data RAM = 41 Bytes
- Speed = 4MHz (Internal Oscillator)
- I/O Pins = 6 (5 I/O, 1 Input-only)
- Supply Voltage = 2.5V to 5.5V
- Current Sink/Source = 25mA
- Package Type = PDIP-8
- Number of Pins = 8
- Mounting Type = Through-Hole
- Operating Temperature = 0 to 70 degrees Celsius
Interfaces
- PIN 1 (VDD) = Positive Supply Voltage (5V)
- PIN 2 (GP5/OSC1/CLKIN) = General Purpose I/O / Oscillator Input
- PIN 3 (GP4/OSC2/CLKOUT) = General Purpose I/O / Oscillator Output
- PIN 4 (GP3/MCLR/VPP) = Input Only / Master Clear / Programming Voltage
- PIN 5 (GP2/T0CKI) = General Purpose I/O / Timer Clock Input
- PIN 6 (GP1/ICSPCLK) = General Purpose I/O / Programming Clock
- PIN 7 (GP0/ICSPDAT) = General Purpose I/O / Programming Data
- PIN 8 (VSS) = Ground (0V)
