PIC18LF24J11-I/SO Microchip Technology, PIC18LF24J11-I/SO Datasheet - Page 350
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PIC18LF24J11-I/SO
Manufacturer Part Number
PIC18LF24J11-I/SO
Description
IC PIC MCU FLASH 16K 2V 28-SOIC
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.MA180023.pdf
(528 pages)
2.PIC18LF24J10-ISS.pdf
(32 pages)
3.PIC18F24J11-ISS.pdf
(14 pages)
Specifications of PIC18LF24J11-I/SO
Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Oscillator Type
Internal
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 10x10b
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Controller Family/series
PIC18
No. Of I/o's
16
Ram Memory Size
3776Byte
Cpu Speed
48MHz
No. Of Timers
5
No. Of Pwm
RoHS Compliant
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3776 B
Interface Type
EUSART, I2C, SPI
Maximum Clock Frequency
31 KHz
Number Of Programmable I/os
16
Number Of Timers
5
Operating Supply Voltage
2 V to 3.6 V
Maximum Operating Temperature
+ 125 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, PG164120, DM183032, DM183022, DM183033, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
A/d Bit Size
10 bit
A/d Channels Available
10
Height
2.31 mm
Length
17.87 mm
Supply Voltage (max)
2.75 V, 3.6 V
Supply Voltage (min)
2 V
Width
7.49 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
- Current page: 350 of 528
- Download datasheet (8Mb)
PIC18F46J11 FAMILY
20.1
For the A/D Converter to meet its specified accuracy,
the charge holding capacitor (C
to fully charge to the input channel voltage level. The
analog input model is illustrated in Figure 20-2. The
source impedance (R
switch (R
required to charge the capacitor C
switch (R
(V
at the analog input (due to pin leakage current). The
maximum recommended impedance for analog
sources is 10 kΩ. After the analog input channel is
selected (changed), the channel must be sampled for
at least the minimum acquisition time before starting a
conversion.
EQUATION 20-1:
EQUATION 20-2:
EQUATION 20-3:
DS39932C-page 350
T
V
or
T
T
T
T
Temperature coefficient is only required for temperatures > 25°C. Below 25°C, T
T
T
ACQ
DD
Note:
C
ACQ
AMP
COFF
C
ACQ
HOLD
). The source impedance affects the offset voltage
=
=
A/D Acquisition Requirements
SS
=
=
=
=
=
SS
=
=
When the conversion is started, the
holding capacitor is disconnected from the
input pin.
) impedance varies over the device voltage
Amplifier Settling Time + Holding Capacitor Charging Time + Temperature Coefficient
T
) impedance directly affect the time
AMP
T
0.2 ms
(Temp – 25°C)(0.02 μs/°C)
(85°C – 25°C)(0.02 μs/°C)
1.2 μs
-(C
-(25 pF) (1 kΩ + 2 kΩ + 2.5 kΩ) ln(0.0004883) μs
1.05 μs
0.2 μs + 1.05 μs + 1.2 μs
2.45 μs
(V
-(C
AMP
HOLD
+ T
REF
HOLD
+ T
C
– (V
ACQUISITION TIME
A/D MINIMUM CHARGING TIME
CALCULATING THE MINIMUM REQUIRED ACQUISITION TIME
S
+ T
)(R
C
) and the internal sampling
)(R
+ T
REF
COFF
IC
IC
+ R
COFF
/2048)) • (1 – e
+ R
HOLD
SS
SS
HOLD
+ R
+ R
) must be allowed
S
S
) ln(1/2048) μs
. The sampling
) ln(1/2048)
(-T
C
/C
HOLD
(R
IC
+ R
SS
+ R
S
To
Equation 20-1 may be used. This equation assumes
that 1/2 LSb error is used (1024 steps for the A/D). The
1/2 LSb error is the maximum error allowed for the A/D
to meet its specified resolution.
Equation 20-3 provides the calculation of the minimum
required acquisition time, T
based
assumptions:
C
Rs
Conversion Error
V
Temperature
))
HOLD
DD
)
calculate
on
COFF
the
= 0 μs.
the
=
=
≤
=
=
following
minimum
© 2009 Microchip Technology Inc.
25 pF
2.5 kΩ
1/2 LSb
3V → Rss = 2 kΩ
85°C (system max.)
ACQ
. This calculation is
application
acquisition
system
time,
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