PIC18F4420T-I/PT Microchip Technology, PIC18F4420T-I/PT Datasheet - Page 18

• 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
FIGURE 3-4:
FIGURE 3-5:
DS39622L-page 18
PGC
PGD
1
1
4-Bit Command
2
1
3
1
PROGRAM CODE MEMORY FLOW
TABLE WRITE AND START PROGRAMMING INSTRUCTION TIMING (
4
1
P5
LoopCount + 1
LoopCount =
1
n
N = 1
2
n
3
16-Bit Data Payload
n
4
n
N = N + 1
5
n
6
n
PGD = Input
15
n
16
No
n
No
P5A
Start Write Sequence
4-Bit Command
Buffer at <Addr>
1
High until Done
Hold PGC Low
and Hold PGC
0
Load 2 Bytes
for Time P10
and Wait P9
Device for
Configure
locations
written?
2
to Write
Writes
0
done?
Start
bytes
Done
All
All
3
Yes
Yes
0
N = 1
LoopCount = 0
0
Programming Time
P9
 2010 Microchip Technology Inc.
4
P10
1111
Data Payload
1
0
16-Bit
2
)
0
3
0