PIC16F688-I/SL Microchip Technology Inc., PIC16F688-I/SL Datasheet - Page 69

• Manufacturer Part Number: PIC16F688-I/SL
• Description: 14 PIN, 7 KB FLASH, 256 RAM, 12 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F688-I/SL

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 12
• Interface: USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 14-pin SOIC-N
• Programmable Memory: 7K Bytes
• Ram Size: 256 Bytes
• Speed: 20 MHz
• Timers: 1-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

TABLE 8-1:
FIGURE 8-2:
© 2006 Microchip Technology Inc.
Legend: Shaded cells are outside of recommended range.
Note 1:
ADC Clock Source
F
F
F
2:
3:
4:
F
F
F
OSC
OSC
OSC
OSC
OSC
OSC
F
ADC Clock Period (T
RC
The F
These values violate the minimum required T
For faster conversion times, the selection of another clock source is recommended.
When the device frequency is greater than 1 MHz, the F
conversion will be performed during Sleep.
/16
/32
/64
T
/2
/4
/8
CY
Set GO/DONE bit
Holding Capacitor is Disconnected from Analog Input (typically 100 ns)
to T
RC
ADC CLOCK PERIOD (T
AD
source has a typical T
Conversion Starts
ANALOG-TO-DIGITAL CONVERSION T
T
AD
1 T
ADCS<2:0>
AD
b9
AD
000
100
001
101
010
110
x11
2 T
)
AD
b8
3 T
AD
AD
b7
time of 4 s for V
AD
4 T
) V
2-6 s
100 ns
200 ns
400 ns
800 ns
20 MHz
1.6 s
3.2 s
AD
b6
S
5 T
. DEVICE OPERATING FREQUENCIES (VDD > 3.0V)
(1,4)
AD
(2)
(2)
(2)
(2)
AD
b5
time.
6 T
DD
ADRESH and ADRESL registers are loaded,
GO bit is cleared,
ADIF bit is set,
Holding capacitor is connected to analog input
AD
b4
> 3.0V.
7 T
2-6 s
RC
250 ns
500 ns
Device Frequency (F
1.0 s
8.0 s
AD
8 MHz
2.0 s
4.0 s
clock source is only recommended if the
AD
b3
CYCLES
(1,4)
8 T
(2)
(3)
(2)
(2)
AD
b2
9
T
AD
b1
2-6 s
16.0 s
500 ns
1.0 s
8.0 s
10 T
4 MHz
2.0 s
4.0 s
PIC16F688
OSC
AD
b0
(1,4)
(2)
(3)
(2)
(3)
11
)
DS41203C-page 67
2-6 s
16.0 s
32.0 s
64.0 s
8.0 s
1 MHz
2.0 s
4.0 s
(1,4)
(3)
(3)
(3)
(3)