PIC16F690-E/P Microchip Technology Inc., PIC16F690-E/P Datasheet - Page 255

• Manufacturer Part Number: PIC16F690-E/P
• Description: 20 PIN, 7 KB FLASH, 256 RAM, 18 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F690-E/P

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 7 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 18
• Interface: USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 20-pin PDIP
• Programmable Memory: 7K Bytes
• Ram Size: 256 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

FIGURE 17-18:
TABLE 17-16: A/D CONVERSION REQUIREMENTS
© 2006 Microchip Technology Inc.
Standard Operating Conditions (unless otherwise stated)
Operating Temperature
130
130
131
132
134
Note 1:
Param
No.
2:
Note 1: If the A/D clock source is selected as RC, a time of T
A/D Data
A/D CLK
*
† Data in “Typ” column is at 5.0V, 25 C unless otherwise stated. These parameters are for design guidance
BSF ADCON0, GO
ADRES
Sample
T
T
T
T
T
ADIF
Sym
AD
CNV
ACQ
AD
GO
These parameters are characterized but not tested.
only and are not tested.
ADRESH and ADRESL registers may be read on the following T
See Table 9-1 for minimum conditions.
GO
Q4
SLEEP instruction to be executed.
134
A/D Clock Period
A/D Internal RC
Oscillator Period
Conversion Time
(not including
Acquisition Time)
Acquisition Time
Q4 to A/D Clock
Start
Characteristic
132
A/D CONVERSION TIMING (NORMAL MODE)
-40°C
(T
(1)
T
PIC16F631/677/685/687/689/690
OSC
A
/2)
+125°C
(1)
Min
3.0*
3.0*
2.0*
1.5
9
—
(2)
5*
—
OLD_DATA
8
Preliminary
T
Typ†
OSC
11.5
6.0
4.0
11
—
—
—
Sampling Stopped
131
7
/2
6
CY
Max
9.0*
6.0*
130
—
—
—
—
—
—
is added before the A/D clock starts. This allows the
3
Units
T
CY
—
AD
s
s
s
s
s
s
2
cycle.
T
T
ADCS<1:0> = 11 (RC mode)
At V
At V
Set GO bit to new data in A/D Result
register
The minimum time is the amplifier
settling time. This may be used if the
“new” input voltage has not changed
by more than 1 LSb (i.e., 4.1 mV @
4.096V) from the last sampled
voltage (as stored on C
If the A/D clock source is selected as
RC, a time of T
the A/D clock starts. This allows the
SLEEP instruction to be executed.
OSC
OSC
1
DD
DD
-based, V
-based, V
= 2.5V
= 5.0V
0
Conditions
REF
REF
CY
NEW_DATA
DS41262C-page 253
is added before
DONE
1 T
full range
2.5V
CY
1 T
HOLD
CY
).