GENERAL DESCRIPTION
The PIC14000 features include medium to high resolution A/D conversion (10 to 16 bits), temperature sensing, closed loop charge control, serial communication, and low power operation.
The PIC14000 uses a RISC Harvard architecture CPU with separate 14-bit instruction and 8-bit data buses. A 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 are available. Additionally, a large register set is included.
PIC16/17 microcontrollers typically achieve a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers.

High-Performance RISC CPU:
• Only 35 single word instructions to learn
• All single cycle instructions except for program
   branches which are two cycle
• Operating speed: DC - 20 MHz clock input
• 4096 x 14 on-chip EPROM program memory
• 192 x 8 general purpose registers (SRAM)
• 6 internal and 5 external interrupt sources
• 38 special function hardware registers
• Eight-level hardware stack

Analog Peripherals Features:
• Slope Analog-to-Digital (A/D) converter
   - Eight external input channels including two
      channels with selectable level shift inputs
   - Six internal input channels
   - 16-bit programmable timer with capture register
   - 16 ms maximum conversion time at maximum (16-bit) resolution and 4 MHz clock
   - 4-bit programmable current source
• Internal bandgap voltage reference
• Factory calibrated with calibration constants stored in EPROM
• On-chip temperature sensor
• Voltage regulator control output
• Two comparators with programmable references
• On-chip low voltage detector

Special Microcontroller Features:
• Power-on Reset (POR), Power-up Timer (PWRT)
   and Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC
   oscillator for reliable operation
• Multi-segment programmable code-protection
• Selectable oscillator options
   - Internal 4 MHz oscillator
   - External crystal oscillator
• Serial in-system programming (via two pins)

Digital Peripherals Features:
• 22 I/O pins with individual direction control
• High current sink/source for direct LED drive
• TMR0: 8-bit timer/counter with 8-bit programmable prescaler
• 16-bit A/D timer: can be used as a general purpose timer
• I2C™ serial port compatible with System Management Bus

CMOS Technology:
• Low-power, high-speed CMOS EPROM technology
• Fully static design
• Wide-operating voltage range (2.7V to 6.0V)
• Commercial and Industrial Temperature Range
• Low power dissipation (typical)
   - < 3 mA @5V, 4 MHz operating mode
   - < 300 µA @3V (Sleep mode: clocks stopped
      with analog circuits active)
   - < 5 µA @3V (Hibernate mode: clocks
      stopped, analog inactive, and WDT disabled)

Applications:
• Battery Chargers
• Battery Capacity Monitoring
• Uninterruptable Power Supply Controllers
• Power Management Controllers
• HVAC Controllers
• Sensing and Data Acquisition