PIC18F44J50-I Datasheet, PDF (14/562 Pages) Microchip Technology – 28/44-Pin, Low-Power, High-Performance USB Microcontrollers

PIC18F46J50 FAMILY
FIGURE 1-1:
PIC18F2XJ50 (28-PIN) BLOCK DIAGRAM
Table Pointer<21>
inc/dec logic
21
20
Address Latch
Program Memory
(16 Kbytes-64 Kbytes)
Data Latch
8
Data Bus<8>
88
PCLATU PCLATH
PCU PCH PCL
Program Counter
31-Level Stack
STKPTR
Table Latch
Data Latch
Data Memory
(3.8 Kbytes)
Address Latch
12
Data Address<12>
4
BSR
12
FSR0
FSR1
FSR2
4
Access
Bank
12
inc/dec
logic
ROM Latch
Instruction Bus <16>
IR
Address
Decode
OSC2/CLKO
OSC1/CLKI
VUSB
Timing
Generation
8 MHz
INTOSC
INTRC
Oscillator
USB
Module
Precision
Band Gap
Reference
Voltage
Regulator
Instruction
Decode and
Control
State Machine
Control Signals
8
PRODH PRODL
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset⁽²⁾
3
BITOP
8
8 x 8 Multiply
8
W
8
8
8
8
ALU<8>
8
RTCC
VDDCORE/VCAP VDD,VSS
MCLR
HLVD
ADC
10-Bit
Timer0 Timer1 Timer2
Timer3
Timer4 Comparators
PORTA
RA0:RA7⁽¹⁾
PORTB
RB0:RB7⁽¹⁾
PORTC
RC0:RC7⁽¹⁾
CTMU
ECCP1
ECCP2
EUSART1
EUSART2
MSSP1
MSSP2
USB
Note 1: See Table 1-3 for I/O port pin descriptions.
2: BOR functionality is provided when the on-board voltage regulator is enabled.
DS39931D-page 14
 2011 Microchip Technology Inc.