PIC18F14K50T-I/SO Microchip Technology, PIC18F14K50T-I/SO Datasheet - Page 219
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PIC18F14K50T-I/SO
Manufacturer Part Number
PIC18F14K50T-I/SO
Description
16 KB Flash, 768 RAM, 15 I/O, 10-Bit ADC, USB 2.0 20 SOIC .300in T/R
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18F13K50-ISS.pdf
(420 pages)
2.PIC18F13K50-ISS.pdf
(10 pages)
3.PIC18F13K50-ISS.pdf
(2 pages)
4.PIC18F14K50-ISS.pdf
(4 pages)
Specifications of PIC18F14K50T-I/SO
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
14
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SOIC (7.5mm Width)
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
EUSART, I2C, MSSP, SPI, USB
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
15
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 11 Channel
A/d Bit Size
10 bit
A/d Channels Available
11
Height
2.05 mm
Length
12.8 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Width
7.49 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC244023 - PROC EXTENS PAK PIC18F1XK50DV164126 - KIT DEVELOPMENT USB W/PICKIT 2DM164127 - KIT DEVELOPMENT USB 18F14/13K50AC164112 - VOLTAGE LIMITER MPLAB ICD2 VPPXLT20SO1-1 - SOCKET TRANS ICE 20DIP TO 20SOIC
Lead Free Status / Rohs Status
Details
- PIC18F13K50-ISS PDF datasheet
- PIC18F13K50-ISS PDF datasheet #2
- PIC18F13K50-ISS PDF datasheet #3
- PIC18F14K50-ISS PDF datasheet #4
- Current page: 219 of 420
- 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
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 k. As the source impedance is
decreased, the acquisition time may be decreased.
After the analog input channel is selected (or changed),
EQUATION 17-1:
2010 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 k. This is required to meet the pin
A/D Acquisition Requirements
HOLD
leakage specification.
T
V
S
V
V
ACQ
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
=
=
=
–
ACQUISITION TIME EXAMPLE
5µs
Temperature
–
7.45µs
can be approximated with the following equations:
1.20
13.5pF 1k
C
Amplifier Settling Time
T
5µs
1
) must be allowed to fully
AMP
HOLD
1 e
1 e
+
µs
–
Figure
–
+
–
1.20µs
----------- -
2047
+
T
1
–
--------- -
R
–
-------- -
C
DD
RC
RC
T
T
Tc
IC
+
C
C
17-5. The source
), see
+
+
+
+
REF
=
T
Temperature - 25°C
=
=
=
R
700
SS
COFF
) has no effect on the equation, since it cancels itself out.
SS
50°C- 25°C
) impedance
50°C and external impedance of 10k
Figure
V
V
V
+
CHOLD
CHOLD
A P PLIE D
HOLD
+
R
S
10k
ln(1/2047)
17-5.
+
) is discharged after each conversion.
Preliminary
SS
Hold Capacitor Charging Time
)
0.05µs/°C
1
ln(0.0004885)
–
0.05µs/°C
----------- -
2047
1
an A/D acquisition must be done before the conversion
can be started. To calculate the minimum acquisition
time,
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.
Equation 17-1
;[2] V
;combining [1] and [2]
;[1] V
PIC18F/LF1XK50
CHOLD
CHOLD
3.0V V
+
charged to within 1/2 lsb
charge response to V
may be used. This equation
Temperature Coefficient
DD
DS41350E-page 219
APPLIED
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