PIC18F2420-E/ML Microchip Technology, PIC18F2420-E/ML Datasheet - Page 12

• Manufacturer Part Number: PIC18F2420-E/ML
• Description: IC PIC MCU FLASH 8KX16 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2420-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2420/2520/4420/4520
FIGURE 1-1:
DS39631E-page 10
Note 1:
OSC1
OSC2
T1OSI
T1OSO
MCLR
V
Comparator
DD
,
HLVD
Instruction Bus <16>
V
BOR
Table Pointer<21>
Program Memory
(2)
(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
Single-Supply
CCP1
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
IR
Program Counter
31-Level Stack
Timer0
CCP2
STKPTR
PCH
PCLATH
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>
Timer1
MSSP
8
EUSART
BITOP
Timer2
BSR
Band Gap
Reference
Precision
4
3
8
Data Address<12>
Address
Decode
Address Latch
Data Memory
( 3.9 Kbytes )
FSR0
FSR1
FSR2
inc/dec
Data Latch
logic
PRODH
8
ALU<8>
8 x 8 Multiply
12
W
Timer3
10-Bit
12
ADC
8
Access
8
Bank
PRODL
4
12
8
8
8
8
PORTB
PORTE
PORTA
PORTC
© 2008 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