PIC18F4420T-I/PT Microchip Technology, PIC18F4420T-I/PT Datasheet - Page 6

• 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
For PIC18FX5X0/X5X3 devices, the code memory
space extends from 000000h to 007FFFh (32 Kbytes)
in four 8-Kbyte blocks. For PIC18FX4X5/X4X8
devices, the code memory space extends from
000000h to 005FFFh (24 Kbytes) in three 8-Kbyte
blocks.
however, define a “Boot Block” region that is treated
separately from Block 0. All of these blocks define code
protection boundaries within the code memory space.
FIGURE 2-5:
DS39622L-page 6
Note:
1FFFFFh
3FFFFFh
000000h
200000h
Addresses,
Sizes of memory areas are not to scale.
Unimplemented
Code Memory
Configuration
Read as ‘0’
and ID
Space
MEMORY MAP AND THE CODE MEMORY SPACE 
FOR PIC18FX4X5/X4X8/X5X0/X5X3 DEVICES
000000h
through
008000h
0007FFh,
(PIC18FX5X0/X5X3)
Unimplemented
Reads all ‘0’s
32 Kbytes
Boot Block
Block 0
Block 1
Block 2
Block 3
TABLE 2-4:
MEMORY SIZE/DEVICE
PIC18F2455
PIC18F2458
PIC18F4455
PIC18F4458
PIC18F2510
PIC18F2520
PIC18F2523
PIC18F2550
PIC18F2553
PIC18F4510
PIC18F4520
PIC18F4523
PIC18F4550
PIC18F4553
Device
(PIC18FX4X5/X4X8)
IMPLEMENTATION OF CODE
MEMORY
Unimplemented
Reads all ‘0’s
24 Kbytes
Boot Block
Block 0
Block 1
Block 2
 2010 Microchip Technology Inc.
Code Memory Size (Bytes)
000000h-005FFFh (24K)
000000h-007FFFh (32K)
000000h
0007FFh
000800h
001FFFh
002000h
003FFFh
004000h
005FFFh
006000h
007FFFh
1FFFFFh
Address
Range