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   PIC12C671/C672/CE673/CE674 Datasheet (4/1/2003) 
 
 
High-Performance RISC CPU: 
• Only 35 single word instructions to learn 
• All instructions are single cycle (400 ns) except for  
program branches which are two-cycle 
• Operating speed: DC - 10 MHz clock input 
DC - 400 ns instruction cycle 
14-bit wide instructions 
• 8-bit wide data path 
• Interrupt capability 
• Special function hardware registers 
• 8-level deep hardware stack 
• Direct, indirect and relative addressing modes for  
data and instructions 
Peripheral Features: 
• Four-channel, 8-bit A/D converter 
• 8-bit real time clock/counter (TMR0) with 8-bit  
programmable prescaler 
• 1,000,000 erase/write cycle EEPROM data  
memory 
• EEPROM data retention > 40 years 
Special Microcontroller Features: 
• In-Circuit Serial Programming (ICSP™)  
• Internal 4 MHz oscillator with programmable calibration 
• Selectable clockout 
• Power-on Reset (POR) 
• Power-up Timer (PWRT) and Oscillator Start-up  
Timer (OST) 
• Watchdog Timer (WDT) with its own on-chip RC  
oscillator for reliable operation 
• Programmable code protection 
• Power saving SLEEP mode 
• Interrupt-on-pin change (GP0, GP1, GP3) 
• Internal pull-ups on I/O pins (GP0, GP1, GP3) 
• Internal pull-up on MCLR pin 
• 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/EEPROM  
technology 
• Fully static design 
• Wide operating voltage range 2.5V to 5.5V 
• Commercial, Industrial and Extended  
temperature ranges 
• Low power consumption 
< 2 mA @ 5V, 4 MHz 
15 µA typical @ 3V, 32 kHz 
< 1 µA typical standby current 
 
 
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