PIC16F737-I/SS Microchip Technology, PIC16F737-I/SS Datasheet - Page 161

• Manufacturer Part Number: PIC16F737-I/SS
• Description: IC PIC MCU FLASH 4KX14 28SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F737-I/SS

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Type: FLASH
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SSOP
• Controller Family/series: PIC16F
• No. Of I/o's: 25
• Ram Memory Size: 368Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Interface: I2C, SPI, USART
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3DBF777 - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPXLT28SS-1 - SOCKET TRANSITION ICE 28SSOP
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

12.6
Figure 12-3 shows the operation of the A/D converter
after the GO/DONE bit has been set and the
ACQT2:ACQT0 bits are cleared. A conversion is
started after the following instruction to allow entry into
Sleep mode before the conversion begins.
Figure 12-4 shows the operation of the A/D converter
after
ACQT2:ACQT0 bits are set to ‘010’ and a 4 T
acquisition time is selected before the conversion
starts.
FIGURE 12-3:
FIGURE 12-4:
 2004 Microchip Technology Inc.
(Holding capacitor continues
acquiring input)
Set GO/DONE bit
1
T
the
CY
Set GO/DONE bit
Holding capacitor is disconnected from analog input (typically 100 ns)
A/D Conversions
T
- T
ACQT
Acquisition
Automatic
2
GO/DONE
AD
Time
Conversion starts
T
Cycles
AD
3
1 T
A/D CONVERSION T
A/D CONVERSION T
AD
b9
bit
4
2 T
Conversion starts
(Holding capacitor is disconnected)
AD
has
b8
1
3 T
been
AD
b7
b9
Next Q4: ADRESH/ADRESL is loaded, GO/DONE bit is cleared,
2
4 T
Next Q4: ADRESH:ADRESL is loaded, GO/DONE bit is cleared,
AD
set,
b6
b8
3
AD
AD
5 T
ADIF bit is set, holding capacitor is connected to analog input.
CYCLES (ACQT<2:0> = 000, T
CYCLES (ACQT<2:0> = 010, T
ADIF bit is set, holding capacitor is reconnected to analog input.
the
AD
AD
b5
4
b7
6 T
AD
b4
T
5
b6
AD
7 T
Cycles
Clearing the GO/DONE bit during a conversion will
abort the current conversion. The A/D Result register
pair will NOT be updated with the partially completed
A/D
ADRESH:ADRESL registers will continue to contain
the value of the last completed conversion (or the last
value written to the ADRESH:ADRESL registers).
After the A/D conversion is completed or aborted, a
2 T
started. After this wait, acquisition on the selected
channel is automatically started.
AD
b3
Note:
b5
AD
6
8
wait is required before the next acquisition can be
T
conversion
AD
b2
b4
7
9 T
The GO/DONE bit should NOT be set in
the same instruction that turns on the A/D.
AD
b1
b3
10
8
T
AD
b0
sample.
ACQ
b2
11
9
ACQ
PIC16F7X7
= 0)
= 4 T
10
b1
This
AD
DS30498C-page 159
b0
11
)
means
the