PIC18F4220-E/P Microchip Technology, PIC18F4220-E/P Datasheet - Page 15
![IC MCU FLASH 2KX16 EEPROM 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC18F4220-E/P
Manufacturer Part Number
PIC18F4220-E/P
Description
IC MCU FLASH 2KX16 EEPROM 40DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F1320-ISS.pdf
(36 pages)
3.PIC18F2220-ISO.pdf
(394 pages)
4.PIC18F2220-ISO.pdf
(6 pages)
5.PIC18F2220-ISO.pdf
(6 pages)
6.PIC18F2220-ISO.pdf
(8 pages)
7.PIC18F2220-ISO.pdf
(6 pages)
8.PIC18F2220-ISO.pdf
(6 pages)
Specifications of PIC18F4220-E/P
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
40-DIP (0.600", 15.24mm)
For Use With
DVA18XP400 - DEVICE ADAPTER 18F4220 PDIP 40LDACICE0206 - ADAPTER MPLABICE 40P 600 MIL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4220-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
TABLE 3-4:
2010 Microchip Technology Inc.
Step 1: Direct access to code memory.
Step 2: Set the Table Pointer for the block to be erased.
Step 3: Enable memory writes and set up an erase.
Step 4: Perform Flash unlock sequence.
Step 5: Initiate erase.
Step 6: Wait for P11 + P10 and then disable writes.
Step 7: Load write buffer for panel.
To continue writing data, repeat step 7, where the Address Pointer is incremented by 8 at each iteration of the loop.
Command
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
1101
1101
1101
1111
0000
4-Bit
8E A6
9C A6
0E <Addr[21:16]>
6E F8
0E <Addr[15:8]>
6E F7
0E <Addr[7:0]>
6E F6
84 A6
88 A6
0E 55
6E A7
0E AA
6E A7
82 A6
00 00
94 A6
<LSB><MSB>
<LSB><MSB>
<LSB><MSB>
<LSB><MSB>
00 00
MODIFYING CODE MEMORY
Data Payload
BSF
BCF
MOVLW <Addr[21:16]>
MOVWF TBLPTRU
MOVLW <Addr[15:8]>
MOVWF TBLPTRH
MOVLW <Addr[7:0]>
MOVWF TBLPTRL
BSF
BSF
MOVLW 0X55
MOVWF EECON2
MOVLW 0XAA
MOVWF EECON2
BSF
NOP
BCF
Write 2 bytes and post-increment address by 2
Write 2 bytes and post-increment address by 2
Write 2 bytes and post-increment address by 2
Write 2 bytes and start programming
NOP - hold PGC high for time P9 at the end of 4-bit command
EECON1, EEPGD
EECON1, CFGS
EECON1, WREN
EECON1, FREE
EECON1, WR
EECON1, WREN
PIC18FX220/X320
Core Instruction
DS39592F-page 15