PIC16F688-I/SL Microchip Technology, PIC16F688-I/SL Datasheet - Page 67

• Manufacturer Part Number: PIC16F688-I/SL
• Description: IC PIC MCU FLASH 4KX14 14SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F688-I/SL

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 12
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SCI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 1
• 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, DM163014, DM164120-4
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT14SO-1 - SOCKET TRANSITION 14SOIC 150/208AC162061 - HEADER INTRFC MPLAB ICD2 20PINAC162056 - HEADER INTERFACE ICD2 16F688
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

FIGURE 8-2:
8.1.6
The A/D conversion can be supplied in two formats: left
or right shifted. The ADFM bit (ADCON0<7>) controls
the output format. Figure 8-3 shows the output formats.
FIGURE 8-3:
REGISTER 8-1:
 2004 Microchip Technology Inc.
(ADFM = 0)
(ADFM = 1)
bit 7-0:
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
ANSEL – ANALOG SELECT REGISTER (ADDRESS: 91h)
bit 7
bit 7
T
bit 7
ANS<7:0>: Analog Select bits
Analog select between analog or digital function on pins AN<7:0>, respectively.
1 = Analog input. Pin is assigned as analog input.
0 = Digital I/O. Pin is assigned to port or special function.
Legend:
R = Readable bit
- n = Value at POR
AD
R/W-1
Unimplemented: Read as ‘0’
ANS7
Note 1: Setting a pin to an analog input automatically disables the digital input circuitry,
1
T
AD
b9
2
weak pull-ups, and interrupt-on-change if available. The corresponding TRIS bit
must be set to Input mode in order to allow external control of the voltage on the pin.
T
R/W-1
ANS6
AD
b8
ADRESH
3
T
10-bit A/D Result
AD
b7
AD
4
R/W-1
ANS5
CYCLES
T
Preliminary
AD
b6
W = Writable bit
‘1’ = Bit is set
5
MSB
T
AD
b5
6
R/W-1
ANS4
bit 0
bit 0
ADRESH and ADRESL registers are Loaded,
GO bit is Cleared,
ADIF bit is Set,
Holding Capacitor is Connected to Analog Input
T
AD
b4
7
T
AD
b3
bit 7
bit 7
(1)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
8
R/W-1
ANS3
10-bit A/D Result
LSB
T
AD
b2
9
T
AD
b1
Unimplemented: Read as ‘0’
10 T
R/W-1
ANS2
ADRESL
PIC16F688
AD
b0
11
x = Bit is unknown
R/W-1
ANS1
DS41203B-page 65
R/W-1
ANS0
bit 0
LSB
bit 0
bit 0