PIC18LF27J53-I/ML Microchip Technology, PIC18LF27J53-I/ML Datasheet - Page 302
![IC PIC MCU 128KB FLASH 28QFN](/photos/19/6/190629/4733462_sml.jpg)
PIC18LF27J53-I/ML
Manufacturer Part Number
PIC18LF27J53-I/ML
Description
IC PIC MCU 128KB FLASH 28QFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18LF24J10-ISS.pdf
(32 pages)
2.PIC18F26J13-ISS.pdf
(496 pages)
3.PIC18F26J53-ISS.pdf
(586 pages)
4.PIC18F26J53-ISS.pdf
(12 pages)
Specifications of PIC18LF27J53-I/ML
Core Size
8-Bit
Program Memory Size
128KB (64K x 16)
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, LIN, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 2.75 V
Data Converters
A/D 10x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Controller Family/series
PIC18
Cpu Speed
48MHz
Digital Ic Case Style
QFN
Supply Voltage Range
1.8V To 3.6V
Embedded Interface Type
I2C, SPI, USART
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF27J53-I/ML
Manufacturer:
ATMEL
Quantity:
101
- PIC18LF24J10-ISS PDF datasheet
- PIC18F26J13-ISS PDF datasheet #2
- PIC18F26J53-ISS PDF datasheet #3
- PIC18F26J53-ISS PDF datasheet #4
- Current page: 302 of 496
- Download datasheet (5Mb)
PIC18(L)F2X/4XK22
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:
DS41412D-page 302
Note 1: The reference voltage (V
Assumptions:
The value for T
Solving for T
Therefore:
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
ACQ
AP P LI ED
AP P LIED
C
C
=
=
=
=
=
:
C
HOLD
=
=
=
–
ACQUISITION TIME EXAMPLE
Temperature
5µs
–
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
R
1
–
--------- -
C
–
-------- -
RC
DD
RC
T
T
Tc
IC
+
C
C
17-5. The source
), see
+
+
+
+
REF
=
T
Temperature - 25°C
=
=
=
R
700
SS
) has no effect on the equation, since it cancels itself out.
COFF
SS
50°C- 25°C
50°C and external impedance of 10k
) impedance
Figure
V
V
V
+
CHOLD
CHOLD
A P PLIE D
HOLD
+
R
S
10k
17-5.
ln(1/2047)
+
) is discharged after each conversion.
Preliminary
SS
Hold Capacitor Charging Time
)
0.05
1
ln(0.0004885)
–
0.05µs/°C
----------- -
2047
s/
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.
°C
Equation 17-1
;[2] V
;combining [1] and [2]
;[1] V
CHOLD
CHOLD
3.0V V
+
charge response to V
charged to within 1/2 lsb
may be used. This equation
Temperature Coefficient
2010 Microchip Technology Inc.
DD
APPLIED
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