PIC18F452-I/P Microchip Technology Inc., PIC18F452-I/P Datasheet - Page 12

• Manufacturer Part Number: PIC18F452-I/P
• Description: 40 PIN, 32 KB FLASH, 1536 RAM, 34 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F452-I/P

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2420/2520/4420/4520
FIGURE 1-1:
DS39631A-page 10
Note 1:
OSC1
OSC2
T1OSI
T1OSO
MCLR
V
DD
Comparator
,
Instruction Bus <16>
HLVD
V
BOR
Table Pointer<21>
(2)
Program Memory
(3)
(3)
SS
Address Latch
2:
3:
(16/32 Kbytes)
inc/dec logic
Data Latch
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/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
Single-Supply
Programming
Data
Debugger
Oscillator
Oscillator
Oscillator
20
8
In-Circuit
Internal
INTRC
8 MHz
Block
PIC18F2420/2520 (28-PIN) BLOCK DIAGRAM
Decode and
Table Latch
ROM Latch
Instruction
Control
PCLATU
PCU
Program Counter
IR
31 Level Stack
Timer0
CCP2
STKPTR
PCLATH
PCH
Start-up Timer
Clock Monitor
8
Watchdog
Brown-out
Power-up
Oscillator
Power-on
Fail-Safe
State machine
control signals
Reset
Reset
PCL
Timer
Timer
Data Bus<8>
Timer1
MSSP
8
Preliminary
EUSART
BITOP
BSR
Timer2
Reference
Band Gap
Precision
4
3
8
Data Address<12>
Address
Decode
Address Latch
Data Memory
inc/dec
( 3.9 Kbytes )
FSR0
FSR1
FSR2
Data Latch
logic
PRODH
8
ALU<8>
8 x 8 Multiply
12
W
Timer3
10-bit
12
ADC
8
8
Access
Bank
PRODL
4
12
8
8
8
8
PORTB
PORTE
PORTA
PORTC
 2004 Microchip Technology Inc.
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
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI/C1OUT
RA5/AN4/SS/HLVDIN/C2OUT
OSC2/CLKO
OSC1/CLKI
MCLR/V
RC0/T1OSO/T13CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
PP
/RE3
REF
REF
(3)
(3)
/RA7
-/CV
+
/RA6
(1)
(2)
(1)
REF