PIC18F2331-E/ML MICROCHIP [Microchip Technology], PIC18F2331-E/ML Datasheet - Page 15

• Manufacturer Part Number: PIC18F2331-E/ML
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 1-2:
 2010 Microchip Technology Inc.
OSC2/CLKO
OSC1/CLKI
Note 1:
Program Memory
MCLR/V
V
Address Latch
DD
T1OSI
T1OSO
Data Latch
, V
Data EE
Timer0
SS
2:
3:
4:
PP
16
21
RE3 is available only when MCLR is disabled.
RD4 is the alternate pin for FLTA.
RC3, RC4 and RC5 are alternate pins for T0CKI/T5CKI, SDI/SDA, SCK/SCL, respectively.
RD5 is the alternate pin for PWM4.
21
21
Generation
Reference
Band Gap
Precision
Timing
4x PLL
Table Latch
Instruction
PIC18F4331/4431 (40/44-PIN) BLOCK DIAGRAM
Decode &
Control
Table Pointer<21>
Timer1
CCP2
inc/dec logic
20
CCP1
8
PCLATU
ROM Latch
Power-Managed
PCU
Start-up Timer
Program Counter
Mode Logic
Brown-out
31 Level Stack
Watchdog
Power-up
Power-on
Oscillator
IR
Reset
Timer
Timer
Reset
INTRC
OSC
PCLATH
PCH
Synchronous
Serial Port
PIC18F2331/2431/4331/4431
8
Timer2
PCL
8
Decode
BITOP
4
BSR
8
3
Address Latch
12
inc/dec
PRODH
Address<12>
FSR0
FSR1
FSR2
8
Data Latch
(768 bytes)
logic
Data RAM
8 x 8 Multiply
ALU<8>
W
EUSART
8
Timer5
Data Bus<8>
8
12
Bank 0, F
PRODL
4
8
12
8
8
PORTA
PORTD
PORTB
PORTC
PORTE
PCPWM
HS 10-Bit
ADC
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/AN4/CAP3/QEB
RA5/AN5/LVDIN
OSC2/CLKO/RA6
OSC1/CLKI/RA7
RB0/PWM0
RB1/PWM1
RB2/PWM2
RB3/PWM3
RB4/KBI0/PWM5
RB5/KBI1/PWM4/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2/FLTA
RC2/CCP1/FLTB
RC3/T0CKI/T5CKI/INT0
RC4/INT1/SDI/SDA
RC5/INT2/SCK/SCL
RC6/TX/CK/SS
RC7/RX/DT/SDO
RE0/AN6
RE1/AN7
RE2/AN8
MCLR/V
RD0/IT0CKI/T5CKI
RD1/SDO
RD2/SDI/SDA
RD3/SCK/SCL
RD4/FLTA
RD5/PWM4
RD6/PWM6
RD7/PWM7
DS39616D-page 15
PP
REF
REF
/RE3
(2)
AV
MFM
(4)
-/CAP1/INDX
+/CAP2/QEA
DD
(1)
, AV
(3)
(3)
SS
(3)