PIC18F452I/L Microchip Technology, PIC18F452I/L Datasheet - Page 290
PIC18F452I/L
Manufacturer Part Number
PIC18F452I/L
Description
IC, 8BIT MCU, PIC18F, 40MHZ, LCC-44
Manufacturer
Microchip Technology
Datasheet
1.PIC18F242-ISO.pdf
(332 pages)
Specifications of PIC18F452I/L
Controller Family/series
PIC18
No. Of I/o's
34
Eeprom Memory Size
256Byte
Ram Memory Size
1.5KB
Cpu Speed
40MHz
No. Of Timers
4
Core Size
8 Bit
Program Memory Size
16 KWords
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PIC18FXX2
TABLE 22-22: A/D CONVERSION REQUIREMENTS
DS39564C-page 288
130
131
132
135
Note 1: ADRES register may be read on the following T
Param
No.
2: The time for the holding capacitor to acquire the “New” input voltage, when the new input value has not
3: On the next Q4 cycle of the device clock.
4: The time of the A/D clock period is dependent on the device frequency and the T
T
T
T
T
Symbol
AD
CNV
ACQ
SWC
changed by more than 1 LSB from the last sampled voltage. The source impedance ( R
is 50 . See Section 17.0 for more information on acquisition time consideration.
A/D clock period
Conversion time
(not including acquisition time) (Note 1)
Acquisition time (Note 2)
Switching Time from convert
Characteristic
PIC18FXXX
PIC18FXXX
sample
CY
cycle.
Min
1.6
2.0
10
11
—
5
(Note 3)
20
Max
6.0
12
—
—
(4)
Units
T
AD
s
s
s
s
© 2006 Microchip Technology Inc.
T
A/D RC mode
V
V
OSC
REF
REF
AD
clock divider.
= V
= V
S
based
) on the input channels
Conditions
DD
DD
= 5.0V
= 2.5V
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