PIC18F4220-I/ML Microchip Technology, PIC18F4220-I/ML Datasheet - Page 7

• Manufacturer Part Number: PIC18F4220-I/ML
• Description: IC MCU FLASH 2KX16 EEPROM 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4220-I/ML

• Core Size: 8-Bit
• Program Memory Size: 4KB (2K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 36
• 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 ~ 85°C
• Package / Case: 44-QFN
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: XLT44QFN2 - SOCKET TRAN ICE 44QFN/40DIPAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN444-1001 - DEMO BOARD FOR PICMICRO MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

2.4
Figure 2-9 shows the high-level overview of the
programming process. The device is first checked to
see if it is blank; if it is not, a Bulk Erase is performed.
Next, the program memory, ID locations and data
EEPROM are written. These memories are then
verified to ensure that programming was successful. If
no errors are detected, the Configuration bits are then
written and verified.
FIGURE 2-9:
 2010 Microchip Technology Inc.
High-Level Overview of the
Programming Process
HIGH-LEVEL PROGRAMMING FLOW
Write ID Locations
Program Memory
Configuration Bits
Configuration Bits
Verify EEPROM
Write EEPROM
Verify Program
Blank Check
Yes
Verify IDs
Is part
blank?
Verify
Write
Write
Done
Start
No
PIC18FX220/X320
Perform Bulk
Erase
DS39592F-page 7