PIC16C72-02/SS Microchip Technology, PIC16C72-02/SS Datasheet - Page 95

• Manufacturer Part Number: PIC16C72-02/SS
• Description: 8-Bit CMOS Microcontrollers with A/D Converter
• Manufacturer: Microchip Technology

FIGURE 13-14: A/D CONVERSION TIMING
TABLE 13-13
Note 1:
Note 2:
Param
1998 Microchip Technology Inc.
No.
130
131
132
134
135
Note 1:
*
†
§
A/D DATA
SAMPLE
A/D CLK
ADRES
T
T
T
Tgo
Tswc
Sym
BSF ADCON0, GO
ADRES register may be read on the following T
See Section 9.1 for min conditions.
AD
CNV
ACQ
ADIF
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.
This specification ensured by design.
GO
Q4
If the A/D clock source is selected as RC, a time of T
SLEEP instruction to be executed.
A/D clock period PIC16C72/LCR72
Conversion time
(not including S/H time) (Note 1)
Acquisition time
Q4 to A/D clock start
Switching from convert
134
A/D CONVERSION REQUIREMENTS
132
Characteristic
(T
PIC16LC72/LCR72
PIC16C72/LCR72
PIC16LC72/LCR72
OSC
/2)
7
(1)
sample time
6
OLD_DATA
Preliminary
CY
Note 2
5
1.5 §
Min
1.6
2.0
2.0
2.5
—
5*
—
cycle.
SAMPLING STOPPED
4
CY
T
OSC
Typ†
131
130
is added before the A/D clock starts. This allows the
4.0
6.0
9.5
—
—
20
—
—
/2 §
3
Max
6.0
9.0
—
—
—
—
—
—
—
2
PIC16C72 Series
Units
1
T
T
—
AD
AD
s
s
s
s
s
s
1 T
T
T
A/D RC Mode
A/D RC Mode
The minimum time is the amplifier
settling time. This may be used if
the "new" input voltage has not
changed by more than 1 LSb (i.e.,
20.0 mV @ 5.12V) from the last
sampled 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.
0
OSC
OSC
HOLD
CY
based, V
based, V
).
NEW_DATA
DONE
Conditions
DS39016A-page 95
REF
REF
CY
full range
2.5V
is added