PIC16F628

Product Summary

The PIC16F628 is a 18-Pin FLASH based member of the versatile PIC16CXX family of low cost, high performance, CMOS, fullystatic, 8-bit microcontroller. All PICmicro microcontroller employs an advanced RISC architecture. The PIC16F628 has enhanced core features, 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. PIC16F628 microcontroller typically achieves a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers in their class.

Parametrics

PIC16F628 absolute maximum ratings: (1)Ambient temperature under bias: -40 to +125℃; (2)Storage temperature: -65℃ to +150℃; (3)Voltage on VDD with respect to VSS: -0.3 to +6.5V; (4)Voltage on MCLR and RA4 with respect to VSS: -0.3 to +14V; (5)Voltage on all other pins with respect to VSS: -0.3V to VDD + 0.3V; (6)Total power dissipation: 800 mW; (7)Maximum current out of VSS pin: 300 mA; (8)Maximum current into VDD pin: 250 mA; (9)Input clamp current, IIK (VI < 0 or VI > VDD): ± 20 mA; (10)Output clamp current, IOK (Vo < 0 or Vo >VDD):± 20 mA; (11)Maximum output current sunk by any I/O pin: 25 mA; (12)Maximum output current sourced by any I/O pin: 25 mA; (13)Maximum current sunk by PORTA and PORTB (Combined): 200 mA; (14)Maximum current sourced by PORTA and PORTB (Combined): 200 mA.

Features

PIC16F628 features: (1)Operating speeds from DC - 20 MHz; (2)Interrupt capability; (3)8-level deep hardware stack; (4)Direct, Indirect and Relative Addressing modes; (5)35 single word instructions; (6)All instructions single cycle except branches; (7)Standby Current: 100 nA @ 2.0V, typical; (8)Operating Current: 12μA @ 32 kHz, 2.0V, typical; 120μA @ 1 MHz, 2.0V, typical; (9)Watchdog Timer Current: 1μA @ 2.0V, typical; (10)Timer1 oscillator current: 1.2μA @ 32 kHz, 2.0V, typical; (11)Dual Speed Internal Oscillator: Run-time selectable between 4 MHz and 37 kHz; 4μs wake-up from SLEEP, 3.0V, typical.

Diagrams