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   PIC16C505 Datasheet (4/1/2003) 
 
 
Device included in this Data Sheet: 
PIC16C505 
High-Performance RISC CPU: 
• Only 33 instructions to learn 
• Operating speed: 
- DC - 20 MHz clock input 
- DC - 200 ns instruction cycle 
Direct, indirect and relative addressing modes for  
data and instructions 
• 12-bit wide instructions 
• 8-bit wide data path 
• 2-level deep hardware stack 
• Eight special function hardware registers 
• Direct, indirect and relative addressing modes for  
data and instructions 
• All single cycle instructions (200 ns) except for  
program branches which are two-cycle 
Peripheral Features: 
• 11 I/O pins with individual direction control 
• 1 input pin 
• High current sink/source for direct LED drive 
• Timer0: 8-bit timer/counter with 8-bit  
programmable prescaler 
Special Microcontroller Features: 
• In-Circuit Serial Programming (ICSP™)  
• Power-on Reset (POR) 
• Device Reset Timer (DRT)  
• Watchdog Timer (WDT) with dedicated on-chip  
RC oscillator for reliable operation 
• Programmable Code Protection 
• Internal weak pull-ups on I/O pins 
• Wake-up from Sleep on pin change 
• Power-saving Sleep mode 
• Selectable oscillator options: 
- INTRC: Precision internal 4 MHz oscillator 
- EXTRC: External low-cost RC oscillator 
- XT: Standard crystal/resonator 
- HS: High speed crystal/resonator 
- LP: Power saving, low frequency 
crystal 
CMOS Technology: 
• Low-power, high-speed CMOS EPROM  
technology 
• Fully static design 
• Wide operating voltage range (2.5V to 5.5V)  
• Wide temperature ranges 
- Commercial: 0°C to +70°C 
- Industrial: -40°C to +85°C 
- Extended: -40°C to +125°C 
- < 1.0 µA typical standby current @ 5V 
• Low power consumption 
- < 2.0 mA @ 5V, 4 MHz 
-15 µA typical @ 3.0V, 32 kHz for TMR0  
running in SLEEP mode 
- < 1.0 µA typical standby current @ 5V 
 
 
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