PIC18F258 MICROCHIP [Microchip Technology], PIC18F258 Datasheet - Page 10

• Manufacturer Part Number: PIC18F258
• Description: High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18FXX8
FIGURE 1-1:
DS41159B-page 8
T1OSI
T1OSO
OSC2/CLKO/RA6
OSC1/CLKI
Data EEPROM
Bandgap
Program Memory
PBOR
Address Latch
PLVD
up to 32 Kbytes
Data Latch
21
Timer0
PIC18F248/258 BLOCK DIAGRAM
Instruction
Decode &
Control
Generation
Reference
Precision
Bandgap
CCP1
21
Timing
4X PLL
21
16
Table Pointer<21>
Table Latch
inc/dec logic
Timer1
8
PCLATU
PCU
Program Counter
31 Level Stack
MCLR
ROM Latch
Start-up Timer
Test Mode
Watchdog
Brown-out
Oscillator
Power-on
Power-up
PCLATH
PCH
Select
USART
Reset
Timer
Reset
Timer
Timer2
IR
8
V
PCL
DD
, V
Preliminary
8
SS
Decode
BITOP
Timer3
4
BSR
8
3
Synchronous
Serial Port
up to 1536 bytes
12
PRODH
Address Latch
Address<12>
inc/dec
8
FSR0
FSR1
FSR2
Data Latch
Data RAM
logic
8 x 8 Multiply
ALU<8>
W
8
Data Bus<8>
8
10-bit
12
ADC
Bank0, F
PRODL
4
12
8
8
8
PORTC
PORTB
CAN Module
PORTA
 2002 Microchip Technology Inc.
RA0/AN0/CV
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/AN4/SS/LVDIN
OSC2/CLKO/RA6
RB0/INT0
RB1/INT1
RB2/CANTX/INT2
RB3/CANRX
RB4
RB5/PGM
RB6/PGC
RB7/PGD
RC0/T1OSO/T1CKI
RC1/T1OSI
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
REF
REF
REF
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