MICROCHIP PIC14000T-04/SO

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.

• 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
• 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
• 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)
• 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 master serial port compatible with System Management Bus
• 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)
• 4K of EPROM
• 192 bytes of RAM
• 8 external analog input channels, two with level shift inputs
• 6 internal analog input channels
• 2 comparators with programmable references
• A bandgap reference
• An internal temperature sensor
• A programmable current source
• A special oscillator option allows either an internal 4 MHz oscillator or an external crystal oscillator. Using the internal 4 MHz oscillator requires no external components.
• The PIC14000 contains three timers, the Watchdog Timer (WDT), Timer0 (TMR0), and A/D Timer (ADTMR).
• The Watchdog Timer includes its own on-chip RC oscillator providing protection against software lock-up.
• TMR0 is a general purpose 8-bit timer/counter with an 8-bit prescaler. It may be clocked externally using the RC3/T0CKI pin.
• The ADTMR is intended for use with the slope A/D converter, but can also be used as a general purpose timer. It has an associated capture register which can be used to measure the time between events.
• An internal low-voltage detect circuit allows for tracking of voltage levels.

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