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1996 Microchip Technology Inc.
Preliminary
DS40122B-page 1
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 maxi-
mum (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)
PIC14000
28-Pin Programmable Mixed Signal Controller
Pin Diagram
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
•I
2
C
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
µ
A @3V (Sleep mode: clocks stopped
with analog circuits active)
- < 5
µ
A @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
PDIP, SOIC, SSOP, Windowed CERDIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RA2/AN2
RA3/AN3
RD4/AN4
RD5/AN5
RD6/AN6
RD7/AN7
CDAC
SUM
V
SS
RC0/REFA
RC1/CMPA
RC2
RC3/T0CKI
RC4
PIC14000
• 1
2
3
4
5
6
7
8
9
10
11
12
13
14
RA1/AN1
RA0/AN0
RD3/REFB
RD2/CMPB
RD1/SDAB
RD0/SCLB
OSC2/CLKOUT
OSC1/PBTN
V
DD
VREG
RC7/SDAA
RC6/SCLA
RC5
MCLR/VPP
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