PIC18F23K20-E/MLQTP MICROCHIP [Microchip Technology], PIC18F23K20-E/MLQTP Datasheet - Page 15

• Manufacturer Part Number: PIC18F23K20-E/MLQTP
• Description: 28/40/44-Pin Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 1-2:
© 2007 Microchip Technology Inc.
CV
FVR
Note 1:
OSC1
OSC2
T1OSI
T1OSO
MCLR
V
REF
DD
,
Instruction Bus <16>
V
(8/16/32/64 Kbytes)
Program Memory
(2)
Table Pointer<21>
(3)
(3)
SS
Address Latch
Comparator
2:
3:
Data Latch
inc/dec logic
HLVD
BOR
CCP2 is multiplexed with RC1 when Configuration bit CCP2MX is set, or RB3 when CCP2MX is not set.
RE3 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 Section 2.0 “Oscillator Module (With Fail-Safe Clock Monitor)” for additional information.
21
Single-Supply
Programming
20
Debugger
Oscillator
Oscillator
Oscillator
8
In-Circuit
LFINTOSC
EEPROM
Internal
16 MHz
Block
ECCP1
PIC18F4XK20 (40/44-PIN) BLOCK DIAGRAM
Data
Decode and
PCLATU
Table Latch
ROM Latch
Instruction
Control
PCU
Program Counter
IR
31-Level Stack
STKPTR
PCLATH
PCH
Timer0
CCP2
Start-up Timer
Clock Monitor
8
Brown-out
Watchdog
Power-up
Power-on
Oscillator
Fail-Safe
State machine
control signals
PCL
Timer
Reset
Timer
Reset
Data Bus<8>
8
Advance Information
Timer1
MSSP
BITOP
BSR
Band Gap
Reference
Precision
4
3
EUSART
8
Timer2
Data Address<12>
Address
Decode
FSR0
FSR1
FSR2
inc/dec
Address Latch
Data Memory
logic
Data Latch
PRODH
8
ALU<8>
8 x 8 Multiply
12
PIC18F2XK20/4XK20
W
FVR
8
12
Access
8
Bank
PRODL
Timer3
10-bit
4
ADC
12
8
8
8
8
FVR
PORTB
PORTD
PORTE
PORTA
PORTC
PSP
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI/C1OUT
RA5/AN4/SS/HLVDIN/C2OUT
OSC2/CLKOUT
OSC1/CLKIN
RB0/INT0/FLT0/AN12
RB1/INT1/AN10
RB2/INT2/AN8
RB3/AN9/CCP2
RB4/KBI0/AN11
RB5/KBI1/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
MCLR/V
RC0/T1OSO/T13CKI
RC1/T1OSI/CCP2
RC2/CCP1/P1A
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5/P1B
RD6/PSP6/P1C
RD7/PSP7/P1D
DS41303B-page 13
PP
REF
REF
/RE3
(3)
-/CV
+
/RA7
(3)
(1)
(2)
/RA6
(1)
REF