PIC16F785-I/SO Microchip Technology, PIC16F785-I/SO Datasheet - Page 81

• Manufacturer Part Number: PIC16F785-I/SO
• Description: IC PIC MCU FLASH 2KX14 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 20-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: RS- 232/USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SO1-1 - SOCKET TRANS ICE 20DIP TO 20SOICXLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILAC162060 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOIC
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

12.1.5
The A/D conversion is initiated by setting the
GO/DONE bit (ADCON0<1>). When the conversion is
complete, the A/D module:
• Clears the GO/DONE bit
• Sets the ADIF flag (PIR1<6>)
• Generates an interrupt (if enabled)
If the conversion must be aborted, the GO/DONE bit
can be cleared in software. The ADRESH:ADRESL
registers will not be updated with the partially complete
FIGURE 12-2:
12.1.6
The A/D conversion can be supplied in two formats: left
or right justified. The ADFM bit (ADCON0<7>) controls
the output format. Figure 12-3 shows the output
formats.
FIGURE 12-3:
 2004 Microchip Technology Inc.
(ADFM = 0)
(ADFM = 1)
STARTING A CONVERSION
CONVERSION OUTPUT
T
CY
Set GO bit
Holding Capacitor is Disconnected from Analog Input (typically 100 ns)
to T
AD
Conversion Starts
A/D CONVERSION T
10-BIT A/D RESULT FORMAT
MSB
bit 7
bit 7
T
AD
Unimplemented: Read as ‘0’
1
T
AD
b9
2
T
AD
b8
ADRESH
3
T
10-bit A/D Result
AD
b7
AD
4
CYCLES
T
Preliminary
AD
b6
5
MSB
T
AD
b5
6
bit 0
bit 0
A/D
ADRESH:ADRESL registers will retain the value of the
previous conversion. After an aborted conversion, a
2 T
be initiated. Following the delay, an input acquisition is
automatically started on the selected channel.
ADRESH and ADRESL registers are loaded,
GO bit is cleared,
ADIF bit is set,
Holding capacitor is connected to analog input
T
AD
b4
Note:
AD
7
delay is required before another acquisition can
T
AD
b3
bit 7
bit 7
conversion
8
The GO/DONE bit should not be set in the
same instruction that turns on the A/D.
10-bit A/D Result
LSB
T
AD
b2
9
T
AD
b1
Unimplemented: Read as ‘0’
10 T
sample.
ADRESL
PIC16F785
AD
b0
11
DS41249A-page 79
Instead,
bit 0
LSB
bit 0
the