PIC18F4550-I/P Microchip Technology Inc., PIC18F4550-I/P Datasheet - Page 12

• Manufacturer Part Number: PIC18F4550-I/P
• Description: 40 PIN, 32 KB FLASH, 2048 RAM, FS-USB 2.0
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4550-I/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 12 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 34
• Interface: I2C/SPI/UART/USART/USB
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 2K Bytes
• Speed: 48 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2455/2550/4455/4550
FIGURE 1-1:
DS39632C-page 10
OSC1
OSC2
T1OSI
T1OSO
MCLR
V
V
Note 1:
USB
DD
Comparator
Instruction Bus <16>
,
Program Memory
Table Pointer<21>
V
Address Latch
(24/32 Kbytes)
2:
3:
(1)
HLVD
(2)
(2)
SS
BOR
inc/dec logic
Data Latch
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.
RB3 is the alternate pin for CCP2 multiplexing.
21
Single-Supply
Programming
Debugger
Oscillator
Oscillator
Oscillator
In-Circuit
Internal
INTRC
EEPROM
8 MHz
Block
20
8
CCP1
Data
PIC18F2455/2550 (28-PIN) BLOCK DIAGRAM
Table Latch
Instruction
ROM Latch
Decode &
USB Voltage
Regulator
Control
PCLATU
PCU
Program Counter
IR
31 Level Stack
STKPTR
Timer0
CCP2
PCH
PCLATH
Start-up Timer
Clock Monitor
Brown-out
Watchdog
Power-up
Power-on
Oscillator
Fail-Safe
8
Reset
Reset
Timer
Timer
State Machine
Control Signals
PCL
Data Bus<8>
8
Timer1
MSSP
Band Gap
Reference
Preliminary
BITOP
BSR
EUSART
Timer2
4
3
8
Data Address<12>
Address
Decode
Address Latch
inc/dec
Data Memory
FSR0
FSR1
FSR2
Data Latch
logic
(2 Kbytes)
PRODH
8
ALU<8>
8 x 8 Multiply
12
W
12
8
8
Timer3
Access
10-Bit
Bank
ADC
PRODL
4
12
8
8
8
8
USB
PORTA
PORTB
PORTC
PORTE
© 2006 Microchip Technology Inc.
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI/C1OUT/RCV
RA5/AN4/SS/HLVDIN/C2OUT
OSC2/CLKO/RA6
RB0/AN12/INT0/FLT0/SDI/SDA
RB1/AN10/INT1/SCK/SCL
RB2/AN8/INT2/VMO
RB3/AN9/CCP2
RB4/AN11/KBI0
RB5/KBI1/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
RC0/T1OSO/T13CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC4/D-/VM
RC5/D+/VP
RC6/TX/CK
RC7/RX/DT/SDO
MCLR/V
PP
REF
REF
/RE3
-/CV
+
(3)
(1)
/VPO
(3)
REF
/UOE