PIC18F2480 MICROCHIP [Microchip Technology], PIC18F2480 Datasheet - Page 13

• Manufacturer Part Number: PIC18F2480
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 1-2:
 2004 Microchip Technology Inc.
Note 1:
Comparator
OSC1
OSC2
T1OSI
T1OSO
MCLR
V
DD
HLVD
BOR
,
Instruction Bus <16>
V
2:
Program Memory
(1)
Table Pointer<21>
(2)
(2)
SS
Address Latch
(16/32 Kbytes)
Data Latch
inc/dec logic
RE3 is multiplexed with MCLR and is only available when the MCLR Resets are 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.
Refer to Section 2.0 “Oscillator Configurations” for additional information.
21
EEPROM
CCP1
Data
Single-Supply
Programming
Debugger
Oscillator
Oscillator
Oscillator
20
8
In-Circuit
PIC18F4480/4580 (40/44-PIN) BLOCK DIAGRAM
Internal
INTRC
8 MHz
Block
ROM Latch
Table Latch
Instruction
Decode &
Control
ECCP1
Timer0
PCLATU
PCU
Program Counter
IR
31 Level Stack
STKPTR
PCLATH
PCH
Start-up Timer
Clock Monitor
8
Watchdog
Brown-out
Power-up
Power-on
Oscillator
Fail-Safe
State machine
control signals
Reset
Reset
PCL
Timer
Timer
Timer1
MSSP
Data Bus<8>
8
PIC18F2480/2580/4480/4580
Preliminary
EUSART
Timer2
BITOP
BSR
Reference
Band Gap
4
3
8
Data Address<12>
Address
Decode
inc/dec
FSR0
FSR1
FSR2
(.7, 1.5 Kbytes)
Address Latch
logic
Data Memory
Data Latch
PRODH
8
ALU<8>
8 x 8 Multiply
12
Timer3
10-bit
ADC
W
8
12
Access
8
Bank
PRODL
4
12
8
8
8
8
ECAN
PORTD
PORTE
PORTA
PORTB
PORTC
RB0/INT0/FLT0/AN10
RB1/INT1/AN8
RB2/INT2/CANTX
RB3/CANRX
RB4/KBI0/AN9
RB5/KBI1/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
RA0/AN0/CV
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/AN4/SS/HLVDIN
OSC2/CLKO/RA6
OSC1/CLKI/RA7
RD0/PSP0
RD1/PSP1/C1IN-
RD2/PSP2/C2IN+
RD3/PSP3/C2IN-
RD4/PSP4/ECCP1/P1A
RD5/PSP5/P1B
RD6/PSP6/P1C
RD7/PSP7/P1D
RE0/RD/AN5
RE1/WR/AN6/C1OUT
RE2/CS/AN7/C2OUT
MCLR/V
RC0/T1OSO/T13CKI
RC1/T1OSI
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
DS39637A-page 11
PP
/C1IN+
/RE3
REF
REF
REF
-
+
(1)