PIC16F690-I/P Microchip Technology, PIC16F690-I/P Datasheet - Page 118
![IC PIC MCU FLASH 4KX14 20DIP](/photos/12/13/121303/150-20-dip_sml.jpg)
PIC16F690-I/P
Manufacturer Part Number
PIC16F690-I/P
Description
IC PIC MCU FLASH 4KX14 20DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F690DM-PCTLHS.pdf
(306 pages)
3.PIC16F677-IP.pdf
(2 pages)
4.PIC16F677-IP.pdf
(16 pages)
5.PIC16F677-ISO.pdf
(294 pages)
Specifications of PIC16F690-I/P
Program Memory Type
FLASH
Program Memory Size
7KB (4K x 14)
Package / Case
20-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
18
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 12x10b
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
I2C/SPI/SSP/EUSART
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
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014, DM164120-1, DM163029
Minimum Operating Temperature
- 40 C
On-chip Adc
12-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
PIC16F690DM-PCTLHS - BOARD DEMO PICTAIL HUMIDITY SNSRAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOICDM163029 - BOARD PICDEM FOR MECHATRONICSACICE0203 - MPLABICE 20P 300 MIL ADAPTER
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- PIC16F616T-ISL PDF datasheet
- PIC16F690DM-PCTLHS PDF datasheet #2
- PIC16F677-IP PDF datasheet #3
- PIC16F677-IP PDF datasheet #4
- PIC16F677-ISO PDF datasheet #5
- Current page: 118 of 306
- Download datasheet (6Mb)
PIC16F631/677/685/687/689/690
9.3
For the ADC to meet its specified accuracy, the charge
holding capacitor (C
charge to the input channel voltage level. The Analog
Input model is shown in Figure 9-4. The source
impedance (R
impedance directly affect the time required to charge the
capacitor C
varies over the device voltage (V
The maximum recommended impedance for analog
sources is 10 kΩ. As the source impedance is
decreased, the acquisition time may be decreased.
After the analog input channel is selected (or changed),
EQUATION 9-1:
DS41262E-page 116
The value for T
Solving for T
Therefore:
Assumptions:
V
V
V
Note: Where n = number of bits of the ADC.
A/D Acquisition Requirements
AP P LI ED
AP P LI ED
AP P LI ED
HOLD
T
S
ACQ
T
) and the internal sampling switch (R
T
C
. The sampling switch (R
ACQ
:
C
C
⎛
⎝
⎛
⎜
⎝
⎛
⎜
⎝
Temperature
can be approximated with the following equations:
=
=
=
=
=
1
1 e
1 e
HOLD
=
=
=
ACQUISITION TIME EXAMPLE
–
2μ
–
4.67μ
–
–
–
1.37
C
10pF 1k
Amplifier Settling Time
T
2μs
--------------------------
(
S
) must be allowed to fully
AMP
HOLD
2
–
--------- -
–
-------- -
RC
RC
+
μs
T
Tc
n
S
+
C
1.37μ
+
(
⎞
⎟
⎠
⎞
⎟
⎠
+
1
T
(
1
R
C
) 1
=
=
Ω
T
DD
IC
+
C
–
=
S
+
V
), see Figure 9-4.
V
+
+
+
[
(
7k
A PP LIE D
⎞
⎠
CHOLD
50°C and external impedance of 10k
Temperature - 25°C
T
R
[
SS
(
Ω
COFF
SS
50°C- 25°C
=
) impedance
+
+
V
10k
R
CHOLD
⎛
⎝
S
1
) ln(1/2047)
+
Ω
SS
–
)
Hold Capacitor Charging Time
ln(0.0004885)
)
) 0.05μ
--------------------------
(
(
2
n
+
) 0.05μs/°C
1
1
(
S
) 1
/°C
an A/D acquisition must be done before the conversion
can be started. To calculate the minimum acquisition
time, Equation 9-1 may be used. This equation
assumes that 1/2 LSb error is used (1024 steps for the
ADC). The 1/2 LSb error is the maximum error allowed
for the ADC to meet its specified resolution.
–
)
]
⎞
⎠
;[1] V
;[2] V
;combining [1] and [2]
)
]
Ω
CHOLD
CHOLD
5.0V V
+
charged to within 1/2 lsb
charge response to V
DD
Temperature Coefficient
© 2008 Microchip Technology Inc.
APPLIED
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