PIC18F4420T-I/PT Microchip Technology, PIC18F4420T-I/PT Datasheet - Page 34

• Manufacturer Part Number: PIC18F4420T-I/PT
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,44PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4420T-I/PT

• Rohs Compliant: YES
• 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: 36
• 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 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2XXX/4XXX FAMILY
TABLE 5-3:
DS39622L-page 34
ICPRT
BBSIZ<1:0>
BBSIZ<2:1>
BBSIZ<1:0>
BBSIZ
LVP
STVREN
CP5
CP4
CP3
Note 1:
Bit Name
2:
(1)
The BBSIZ bits, BBSIZ<1:0> and BBSIZ<2:1> bits, cannot be changed once any of the following
code-protect bits are enabled: CPB or CP0, WRTB or WRT0, EBTRB or EBTR0.
Not available in PIC18FXX8X and PIC18F2450/4450 devices.
(1)
(1)
(1)
PIC18F2XXX/4XXX FAMILY BIT DESCRIPTIONS (CONTINUED)
Configuration
CONFIG4L
CONFIG4L
CONFIG4L
CONFIG4L
CONFIG4L
CONFIG4L
CONFIG4L
CONFIG5L
CONFIG5L
CONFIG5L
Words
Dedicated In-Circuit (ICD/ICSP™) Port Enable bit 
(PIC18F2455/2550/4455/4550, PIC18F2458/2553/4458/4553 and
PIC18F2450/4450 devices only)
1 = ICPORT is enabled
0 = ICPORT is disabled
Boot Block Size Select bits (PIC18F2585/2680/4585/4680 devices only)
11 = 4K words (8 Kbytes) Boot Block
10 = 4K words (8 Kbytes) Boot Block
01 = 2K words (4 Kbytes) Boot Block
00 = 1K word (2 Kbytes) Boot Block
Boot Block Size Select bits (PIC18F2682/2685/4582/4685 devices only)
11 = 4K words (8 Kbytes) Boot Block
10 = 4K words (8 Kbytes) Boot Block
01 = 2K words (4 Kbytes) Boot Block
00 = 1K word (2 Kbytes) Boot Block
Boot Block Size Select bits (PIC18F2321/4321 devices only)
11 = 1K word (2 Kbytes) Boot Block
10 = 1K word (2 Kbytes) Boot Block
01 = 512 words (1 Kbyte) Boot Block
00 = 256 words (512 bytes) Boot Block
Boot Block Size Select bits (PIC18F2221/4221 devices only)
11 = 512 words (1 Kbyte) Boot Block
10 = 512 words (1 Kbyte) Boot Block
01 = 512 words (1 Kbyte) Boot Block
00 = 256 words (512 bytes) Boot Block
Boot Block Size Select bits 
(PIC18F2480/2580/4480/4580 and PIC18F2450/4450 devices only)
1 = 2K words (4 Kbytes) Boot Block
0 = 1K word (2 Kbytes) Boot Block
Low-Voltage Programming Enable bit
1 = Low-Voltage Programming is enabled, RB5 is the PGM pin
0 = Low-Voltage Programming is disabled, RB5 is an I/O pin
Stack Overflow/Underflow Reset Enable bit
1 = Reset on stack overflow/underflow is enabled
0 = Reset on stack overflow/underflow is disabled
Code Protection bit (Block 5 code memory area) 
(PIC18F2685 and PIC18F4685 devices only)
1 = Block 5 is not code-protected
0 = Block 5 is code-protected
Code Protection bit (Block 4 code memory area) 
(PIC18F2682/2685 and PIC18F4682/4685 devices only)
1 = Block 4 is not code-protected
0 = Block 4 is code-protected
Code Protection bit (Block 3 code memory area)
1 = Block 3 is not code-protected
0 = Block 3 is code-protected
Description
 2010 Microchip Technology Inc.