PIC18F14K22LIN Datasheet, PDF (6/62 Pages) Microchip Technology – 20-Pin Flash Microcontrollers 20-Pin Flash Microcontrollers

PIC18F14K22LIN
FIGURE 1:
PIC18F14K22LIN BLOCK DIAGRAM
Table Pointer<21>
Data Bus<8>
inc/dec logic
88
21
PCLATU PCLATH
20
PCU PCH PCL
Program Counter
Address Latch
Program Memory
Data Latch
31-Level Stack
STKPTR
Data Latch
Data Memory
(512/768 bytes)
Address Latch
12
Data Address<12>
4
BSR
12
FSR0
FSR1
FSR2
4
Access
Bank
12
8
Table Latch
inc/dec
logic
ROM Latch
Instruction Bus <16>
IR
Address
Decode
OSC1⁽²⁾
OSC2⁽²⁾
MCLR⁽¹⁾
VDD, VSS
Instruction
Decode and
Control
State machine
control signals
8
PRODH PRODL
Internal
Oscillator
Block
LFINTOSC
Oscillator
16 MHz
Oscillator
Single-Supply
Programming
LDO
Regulator
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Fail-Safe
Clock Monitor
3
BITOP
8
8 x 8 Multiply
8
W
8
8
8
8
ALU<8>
8
Precision
Band Gap
Reference
FVR
PORTA
RA0
RA1
RA1
RA3
RA4
RA5
PORTB
RB4
RB6
ENABLE
Voltage
Regulator
RESET
VBAT
VREG
VSS
PORTC
RC7
RC0
RC1
RC2
RC3
RC4
RC5
RC6
NC
FAULT/
LBUS TXE
BOR
Data
EEPROM
Timer0
Timer1
Timer2
Timer3
FVR
CVREF ^Comparator
ECCP1
ADC
10-bit
FVR
CVREF
Transceiver
RB7
RB5
TX
RX
EUSART
Note 1:
2:
RA3 is only available when MCLR functionality is disabled.
OSC1/CLKIN and OSC2/CLKOUT are only available in select Oscillator modes and when these pins are not being used
as digital I/O. Refer to DS41365, “PIC18(L)F1XK22 Data Sheet”, Section 2.0 “Oscillator Module” for additional information.
DS41580A-page 6
Preliminary
 2011 Microchip Technology Inc.