PIC18LF13K50-I/P Microchip Technology, PIC18LF13K50-I/P Datasheet - Page 217
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PIC18LF13K50-I/P
Manufacturer Part Number
PIC18LF13K50-I/P
Description
IC PIC MCU FLASH 4KX16 20-PDIP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18F13K50-ISS.pdf
(420 pages)
2.PIC18F13K50-ISS.pdf
(40 pages)
3.PIC18F13K50-ISS.pdf
(10 pages)
4.PIC18F13K50-ISS.pdf
(2 pages)
5.PIC18F13K50-ISO.pdf
(414 pages)
Specifications of PIC18LF13K50-I/P
Core Size
8-Bit
Program Memory Size
8KB (4K x 16)
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
14
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Controller Family/series
PIC18
No. Of I/o's
15
Eeprom Memory Size
256Byte
Ram Memory Size
512Byte
Cpu Speed
48MHz
No. Of Timers
4
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
EUSART, I2C, MSSP, SPI, USB
Maximum Clock Frequency
32 KHz
Number Of Programmable I/os
18
Number Of Timers
4
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, DM164127, DV164126
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
- PIC18F13K50-ISS PDF datasheet
- PIC18F13K50-ISS PDF datasheet #2
- PIC18F13K50-ISS PDF datasheet #3
- PIC18F13K50-ISS PDF datasheet #4
- PIC18F13K50-ISO PDF datasheet #5
- Current page: 217 of 414
- Download datasheet (4Mb)
17.3
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 17-5. 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 17-1:
© 2009 Microchip Technology Inc.
Note 1: The reference voltage (V
The value for T
Solving for T
Therefore:
Assumptions:
2: The charge holding capacitor (C
3: The maximum recommended impedance for analog sources is 10 kΩ. This is required to meet the pin
A/D Acquisition Requirements
HOLD
T
leakage specification.
V
S
ACQ
V
V
T
) and the internal sampling switch (R
AP PLIE D
T
. The sampling switch (R
AP P LI ED
ACQ
AP P LIED
C
C
=
=
=
=
=
:
C
HOLD
=
=
=
–
5
ACQUISITION TIME EXAMPLE
Temperature
–
7.45
can be approximated with the following equations:
1.20
13.5pF 1k
ΜS
⎛
⎝
C
Amplifier Settling Time
T
5µs
⎛
⎜
⎝
⎛
⎜
⎝
1
) must be allowed to fully
AMP
HOLD
1 e
1 e
+
ΜS
µs
–
–
+
–
1.20
----------- -
2047
(
+
T
(
1
–
--------- -
R
–
-------- -
C
DD
RC
RC
T
T
Tc
ΜS
IC
Ω
+
C
C
), see Figure 17-5.
⎞
⎠
⎞
⎟
⎠
⎞
⎟
⎠
+
+
[
+
+
REF
(
=
T
Temperature - 25°C
=
=
=
R
700
[
SS
(
COFF
) has no effect on the equation, since it cancels itself out.
SS
PIC18F1XK50/PIC18LF1XK50
50°C- 25°C
) impedance
50°C and external impedance of 10k
V
V
V
Ω
+
CHOLD
CHOLD
A P PLIE D
HOLD
+
R
S
10k
) ln(1/2047)
+
) is discharged after each conversion.
Preliminary
SS
Hold Capacitor Charging Time
Ω
)
) 0.05
⎛
⎝
)
(
1
ln(0.0004885)
–
) 0.05µs/°C
----------- -
2047
ΜS
(
1
/°C
an A/D acquisition must be done before the conversion
can be started. To calculate the minimum acquisition
time, Equation 17-1 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.
⎞
⎠
)
]
;[2] V
;combining [1] and [2]
;[1] V
)
]
CHOLD
CHOLD
Ω
3.0V V
+
charged to within 1/2 lsb
charge response to V
Temperature Coefficient
DD
DS41350C-page 215
APPLIED
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