PIC16F648AT-I/SO

The PIC16F628A are 18-pin Flash-based members of the versatile PIC16F628A family of low-cost, high-performance, CMOS, fully static, 8-bit microcontrollers. All PIC microcontrollers employ an advanced RISC architecture. The PIC16F628A 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 single cycle, except for program branches (which require two cycles). A total of 35 instructions (reduced instruction set) are available, complemented by a large register set. PIC16F628A microcontrollers typically achieve a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers in their class. PIC16F628A devices have integrated features to reduce external components, thus reducing system cost, enhancing system reliability and reducing power consumption. The PIC16F628A has 8 oscillator configurations. The single-pin RC oscillator provides a low-cost solution. The LP oscillator minimizes power consumption, XT is a standard crystal, and INTOSC is a self-contained precision two-speed internal oscillator. The HS mode is for High-Speed crystals. The EC mode is for an external clock source. The Sleep (Power-down) mode offers power savings. Users can wake-up the chip from Sleep through several external interrupts, internal interrupts and Resets. A highly reliable Watchdog Timer with its own on-chip RC oscillator provides protection against software lockup. The PIC16F628A series fits in applications ranging from battery chargers to low power remote sensors.

• 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