PIC16C774 Microchip Technology Inc., PIC16C774 Datasheet - Page 167

• Manufacturer Part Number: PIC16C774
• Description: 28/40-pin, 8-bit Cmos Microcontrollers W/ 12-bit A/d
• Manufacturer: Microchip Technology Inc.

FIGURE 15-10: A/D CONVERSION TIMING (SLEEP MODE)
TABLE 15-11
Note 1: ADRES register may be read on the following T
Parameter
1999 Microchip Technology Inc.
*
†
130*
130*
131*
132*
134*
Note 1:
No.
2: See
A/D DATA
SAMPLE
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.
A/D CLK
ADRES
BSF ADCON0, GO
ADIF
GO
Section 11.6
Q4
If the A/D clock source is selected as RC, a time of T
SLEEP instruction to be executed.
T
Sym
T
T
T
T
ACQ
CNV
AD
AD
GO
134
A/D CONVERSION REQUIREMENTS
132
Characteristic
A/D clock period
A/D Internal RC
oscillator period
Conversion time (not
including acquisition
time)(Note 1)
Acquisition Time
Q4 to A/D clock start
for minimum conditions.
9
Note 2
Advance Information
TBD
Min
1.6
3.0
2.0
—
5*
—
OLD_DATA
SAMPLING STOPPED
8
CY
cycle.
T
OSC
7
13T
Typ†
131
11.5
/2 + T
6.0
4.0
—
—
—
CY
AD
6
is added before the A/D clock starts. This allows the
CY
130
3
Max
9.0
6.0
—
—
—
—
—
—
2
Units
—
—
s
s
s
s
s
s
1
V
V
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.
REF
REF
ADCS1:ADCS0 = 11 (RC mode)
PIC16C77X
0
full range
2.5V
NEW_DATA
At V
At V
Conditions
DONE
DS30275A-page 167
DD
DD
CY
= 3.0V
= 5.0V
is added
HOLD
).