PIC16C621 Datasheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifPIC16C620/20A/21/21A/22/22A Datasheet (7/21/2003)High Performance RISC CPU:
• Only 35 instructions to learn
• All single cycle instructions (200 ns), except for
program branches which are two-cycle
• Operating speed:
- DC - 40 MHz clock input
- DC - 100 ns instruction cycle
Interrupt capability
• 16 special function hardware registers
• 8-level deep hardware stack
• Direct, Indirect and Relative addressing modes
Peripheral Features:
• 13 I/O pins with individual direction control
• High current sink/source for direct LED drive
• Analog comparator module with:
- Two analog comparators
- Programmable on-chip voltage reference
(VREF) module
- Programmable input multiplexing from device
inputs and internal voltage reference
- Comparator outputs can be output signals
• Timer0: 8-bit timer/counter with 8-bit
programmable prescaler
Special Microcontroller Features:
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up
Timer (OST)
• Brown-out Reset
• Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
• Programmable code protection
• Power saving SLEEP mode
• Selectable oscillator options
• Serial in-circuit programming (via two pins)
• Four user programmable ID locations
CMOS Technology:
• Low power, high speed CMOS EPROM
technology
• Fully static design
• Wide operating range
- 2.5V to 5.5V
• Commercial, industrial and extended tempera-
ture range
• Low power consumption
- < 2.0 mA @ 5.0V, 4.0 MHz
-15 µA typical @ 3.0V, 32 kHz
-< 1.0 µA typical standby current @ 3.0V
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