PIC16C770 Microchip Technology Inc., PIC16C770 Datasheet - Page 171
PIC16C770
Manufacturer Part Number
PIC16C770
Description
18/20-pin, 8-bit Cmos Microcontrollers With 10/12-bit A/d
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16C770.pdf
(220 pages)
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FIGURE 15-15:
TABLE 15-13: PIC16C770/771 AND PIC16LC770/771 A/D CONVERSION REQUIREMENT
130*
131*
132*
134*
Note 1: ADRES register may be read on the following T
Parameter
*
†
2002 Microchip Technology Inc.
Note 1:
No.
(3)
2: See Section 11.6 for minimum conditions.
3: These numbers multiplied by 8 if V
A/D DATA
SAMPLE
A/D CLK
BSF ADCON0, GO
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25 C unless otherwise stated. These parameters are for design guidance only and are not
tested.
ADRES
ADIF
GO
Q4
T
T
T
T
If the A/D RC clock source is selected, a time of T
instruction to be executed.
AD
CNV
ACQ
GO
Sym
134
(SLEEP MODE)
132
Characteristic
A/D Internal RC
oscillator period
Conversion time (not
including acquisition
time) (Note 1)
Acquisition Time
Q4 to A/D clock start
PIC16C770/771 AND PIC16LC770/771 A/D CONVERSION TIMING (SLEEP MODE)
RH
or V
(Note 2)
11
RL
Min
3.0
2.0
—
5*
—
OLD_DATA
is selected as A/D reference.
SAMPLING STOPPED
CY
10
cycle.
T
OSC
9
13T
CY
Typ†
11.5
131
6.0
4.0
/2 + T
—
is added before the A/D clock starts. This allows the SLEEP
AD
8
CY
130
PIC16C717/770/771
3
Max
9.0
6.0
—
—
—
—
2
Units
—
—
s
s
s
s
1
The minimum time is the amplifier
settling time. This may be used if
the “new” input voltage has not
changed by more than 1LSb (i.e.,
1mV @ 4.096V) from the last sam-
pled voltage (as stated on C
If the A/D clock source is selected
as RC, a time of T
before the A/D clock starts. This
allows the SLEEP instruction to be
executed.
ADCS<1:0> = 11 (RC mode)
0
NEW_DATA
At V
At V
DONE
Conditions
DS41120B-page 169
DD
DD
CY
= 3.0V
= 5.0V
is added
HOLD
).
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