Datasheet

© 2009 Microchip Technology Inc. DS40044G-page 3
PIC16F627A/628A/648A
High-Performance RISC CPU:
• Operating speeds from DC – 20 MHz
• Interrupt capability
• 8-level deep hardware stack
• Direct, Indirect and Relative Addressing modes
• 35 single-word instructions:
- All instructions single cycle except branches
Special Microcontroller Features:
• Internal and external oscillator options:
- Precision internal 4 MHz oscillator factory
calibrated to ±1%
- Low-power internal 48 kHz oscillator
- External Oscillator support for crystals and
resonators
• Power-saving Sleep mode
• Programmable weak pull-ups on PORTB
• Multiplexed Master Clear/Input-pin
• Watchdog Timer with independent oscillator for
reliable operation
• Low-voltage programming
• In-Circuit Serial Programming™ (via two pins)
• Programmable code protection
• Brown-out Reset
• Power-on Reset
• Power-up Timer and Oscillator Start-up Timer
• Wide operating voltage range (2.0-5.5V)
• Industrial and extended temperature range
• High-Endurance Flash/EEPROM cell:
- 100,000 write Flash endurance
- 1,000,000 write EEPROM endurance
- 40 year data retention
Low-Power Features:
• Standby Current:
- 100 nA @ 2.0V, typical
• Operating Current:
-12μA @ 32 kHz, 2.0V, typical
-120μA @ 1 MHz, 2.0V, typical
• Watchdog Timer Current:
-1μA @ 2.0V, typical
• Timer1 Oscillator Current:
-1.2μA @ 32 kHz, 2.0V, typical
• Dual-speed Internal Oscillator:
- Run-time selectable between 4 MHz and
48 kHz
-4μs wake-up from Sleep, 3.0V, typical
Peripheral Features:
• 16 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
(V
REF) module
- Selectable internal or external reference
- Comparator outputs are externally accessible
• Timer0: 8-bit timer/counter with 8-bit
programmable prescaler
• Timer1: 16-bit timer/counter with external crystal/
clock capability
• Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• Capture, Compare, PWM module:
- 16-bit Capture/Compare
-10-bit PWM
• Addressable Universal Synchronous/Asynchronous
Receiver/Transmitter USART/SCI
Device
Program
Memory
Data Memory
I/O
CCP
(PWM)
USART Comparators
Timers
8/16-bit
Flash
(words)
SRAM
(bytes)
EEPROM
(bytes)
PIC16F627A 1024 224 128 16 1 Y 2 2/1
PIC16F628A 2048 224 128 16 1 Y 2 2/1
PIC16F648A 4096 256 256 16 1 Y 2 2/1
18-pin Flash-Based, 8-Bit CMOS Microcontrollers
with nanoWatt Technology