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PIC16C505单片机功能解密

时间:2011-01-07 09:43:41

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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 ·A typical standby current @ 5V
· Low power consumption
- < 2.0 mA @ 5V, 4 MHz
- 15 ·A typical @ 3.0V, 32 kHz for TMR0 running in SLEEP mode
- < 1.0 ·A typical standby current @ 5V
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