Description
The PIC16F627A is 18-pin Flash-based members of the versatile PIC16F627A/628A/648A family of low-cost, high-performance, CMOS, fullystatic, 8-bit microcontrollers. All PIC microcontrollers employ an advanced RISC architecture. The PIC16F627A have enhanced core features, an eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture allow a 14-bit wide instruction word with the separate 8-bit wide data. The two-stage instruction pipeline allows all instructions to execute in a singlecycle, except for program branches (which require two cycles). A total of 35 instructions (reduced instruction set) are available, complemented by a large register set. PIC16F627A microcontrollers typically achieve a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers in their class.
- 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: – 12 µA @ 32 kHz, 2.0V, typical – 120 µA @ 1 MHz, 2.0V, typical
- Watchdog Timer Current: – 1 µA @ 2.0V, typical
- Timer1 Oscillator Current: – 1.2 µA @ 32 kHz, 2.0V, typical
- Dual-speed Internal Oscillator: – Run-time selectable between 4 MHz and 48 kHz – 4 µs 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 (VREF) 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
