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PIC18F8723 Datasheet, PDF (12/60 Pages) Microchip Technology – 64/80-Pin, 1-Mbit,Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt Technology
PIC18F8723 FAMILY
FIGURE 1-2:
PIC18F8628/8723 (80-PIN) BLOCK DIAGRAM
Data Bus<8>
Table Pointer<21>
inc/dec logic
21 20
88
PCLATU PCLATH
PCU PCH PCL
Program Counter
Address Latch
Program Memory
(48/64/96/128
Kbytes)
Data Latch
8
31 Level Stack
STKPTR
Table Latch
Data Latch
Data Memory
(3.9 Kbytes)
Address Latch
12
Data Address<12>
4
12
4
BSR
FSR0
Access
Bank
FSR1
FSR2
12
inc/dec
logic
Instruction Bus <16>
AD15:AD0, A19:A16
(Multiplexed with PORTD,
PORTE and PORTH)
ROM Latch
IR
State Machine
Control Signals
Instruction
Decode &
Control
OSC1(3)
OSC2(3)
T1OSI
T1OSO
MCLR(2)
VDD, VSS
Internal
Oscillator
Block
INTRC
Oscillator
8 MHz
Oscillator
Single-Supply
Programming
In-Circuit
Debugger
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
Fail-Safe
Clock Monitor
Address
Decode
8
PRODH PRODL
3
BITOP
8
8 x 8 Multiply
8
W
8
8
8
8
ALU<8>
8
Precision
Band Gap
Reference
PORTA
RA0:RA7(1)
PORTB
RB0:RB7(1)
PORTC
RC0:RC7(1)
PORTD
RD0:RD7(1)
PORTE
RE0:RE7(1)
PORTF
RF0:RF7(1)
PORTG
RG0:RG5(1,2)
PORTH
RH0:RH7(1)
PORTJ
RJ0:RJ7(1)
BOR
HLVD
ADC
12-bit
Timer0
Timer1
Timer2
Timer3
Timer4 Comparators
ECCP1
ECCP2 ECCP3
CCP4
CCP5 EUSART1 EUSART2 MSSP1 MSSP2
Note 1:
2:
3:
See Table 1-3 for I/O port pin descriptions.
RG5 is only available when MCLR functionality is disabled.
OSC1/CLKI and OSC2/CLKO are only available in select oscillator modes and when these pins are not being used as
digital I/O. For additional information, refer to Section 2.0 “Oscillator Configurations” of the “PIC18F8722 Family Data
Sheet” (DS39646).
DS39894A-page 10
Preliminary
© 2007 Microchip Technology Inc.