Microchip Technology MCU PIC10F322T-I/OT SOT-23-6 MCP PIC10F322T-I/OT 데이터 시트
제품 코드
PIC10F322T-I/OT
2011 Microchip Technology Inc.
Preliminary
DS41585A-page 93
PIC10(L)F320/322
TABLE 15-1:
ADC CLOCK PERIOD (T
AD
) V
S
. DEVICE OPERATING FREQUENCIES
FIGURE 15-2:
ANALOG-TO-DIGITAL CONVERSION T
AD
CYCLES
ADC Clock Period (T
AD
)
Device Frequency (F
OSC
)
ADC
Clock Source
ADCS<2:0>
16 MHz
8 MHz
4 MHz
1 MHz
F
OSC
/2
000
125 ns
(1)
250 ns
(1)
500 ns
(1)
2.0
s
F
OSC
/4
100
250 ns
(1)
500 ns
(1)
1.0
s
4.0
s
F
OSC
/8
001
0.5
s
(1)
1.0
s
2.0
s
8.0
s
(2)
F
OSC
/16
101
1.0
s
2.0
s
4.0
s
16.0
s
(2)
F
OSC
/32
010
2.0
s
4.0
s
8.0
s
(2)
32.0
s
(2)
F
OSC
/64
110
4.0
s
8.0
s
(2)
16.0
s
(2)
64.0
s
(2)
F
RC
x11
1.0-6.0
s
(1,3)
1.0-6.0
s
(1,3)
1.0-6.0
s
(1,3)
1.0-6.0
s
(1,3)
Legend:
Shaded cells are outside of recommended range.
Note
1:
These values violate the minimum required T
AD
time.
2:
For faster conversion times, the selection of another clock source is recommended.
3:
The ADC clock period (T
AD
) and total ADC conversion time can be minimized when the ADC clock is derived from the
system clock F
OSC
. However, the F
RC
clock source must be used when conversions are to be performed with the
device in Sleep mode.
T
AD
1 T
AD
2 T
AD
3 T
AD
4 T
AD
5 T
AD
6 T
AD
7 T
AD
8
Set GO bit
Holding capacitor is disconnected from analog input
T
AD
9
T
CY
- T
AD
ADRES is loaded, GO bit is cleared,
ADIF bit is set, holding capacitor is
ADIF bit is set, holding capacitor is
Conversion starts
b7
b4
b3
b2
b1
b0
b6
b5
On the following cycle:
(typically 100 ns)
connected to analog input.