PIC18F4220-I/P Microchip Technology Inc., PIC18F4220-I/P Datasheet - Page 344

• Manufacturer Part Number: PIC18F4220-I/P
• Description: Microcontroller; 4 KB Flash; 512 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4220-I/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 4K Bytes
• Ram Size: 512 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2220/2320/4220/4320
FIGURE 26-23:
TABLE 26-25: A/D CONVERSION REQUIREMENTS
DS39599C-page 342
130
131
Note 1:
Param
No.
Note 1: If the A/D clock source is selected as RC, a time of T
A/D DATA
SAMPLE
A/D CLK
2:
ADRES
BSF ADCON0, GO
T
T
Symbol
2: This is a minimal RC delay (typically 100 ns), which also disconnects the holding capacitor from the analog input.
ADIF
AD
CNV
GO
Q4
ADRES register may be read on the following T
The time of the A/D clock period is dependent on the device frequency and the T
executed.
132
A/D Clock Period
Conversion Time
(not including acquisition time)
A/D CONVERSION TIMING
(Note 2)
Characteristic
9
8
PIC18FXX20
PIC18LFXX20
PIC18FXX20
PIC18LFXX20
OLD_DATA
7
(1)
CY
. . .
SAMPLING STOPPED
is added before the A/D clock starts. This allows the SLEEP instruction to be
CY
. . .
131
130
cycle.
Min
1.6
3.0
2.0
3.0
11
2
20
20
Max
6.0
9.0
12
1
(2)
(2)
Units
T
AD
s
s
s
s
0
 2003 Microchip Technology Inc.
T
T
A/D RC mode
A/D RC mode
OSC
OSC
AD
based, V
based, V
clock divider.
NEW_DATA
DONE
Conditions
T
CY
REF
REF
full range
3.0V