PIC18F24K20-I/SS Microchip Technology, PIC18F24K20-I/SS Datasheet - Page 273
![IC PIC MCU FLASH 8KX16 28SSOP](/photos/6/81/68119/150-28-ssop_sml.jpg)
PIC18F24K20-I/SS
Manufacturer Part Number
PIC18F24K20-I/SS
Description
IC PIC MCU FLASH 8KX16 28SSOP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18F25K20T-ISS.pdf
(42 pages)
2.PIC18F25K20T-ISS.pdf
(12 pages)
3.PIC18F25K20T-ISS.pdf
(14 pages)
4.PIC18F25K20T-ISS.pdf
(456 pages)
5.PIC18F26K20-ISO.pdf
(430 pages)
Specifications of PIC18F24K20-I/SS
Program Memory Type
FLASH
Program Memory Size
16KB (8K x 16)
Package / Case
28-SSOP
Core Processor
PIC
Core Size
8-Bit
Speed
64MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Eeprom Size
256 x 8
Ram Size
768 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
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
CCP/ECCP/EUSART/I2C/MSSP/SPI
Maximum Clock Frequency
64 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Operating Supply Voltage
3 V
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, PG164120, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
11-ch x 10-bit
Package
28SSOP
Device Core
PIC
Family Name
PIC18
Maximum Speed
64 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18F24K20-I/SS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC18F25K20T-ISS PDF datasheet
- PIC18F25K20T-ISS PDF datasheet #2
- PIC18F25K20T-ISS PDF datasheet #3
- PIC18F25K20T-ISS PDF datasheet #4
- PIC18F26K20-ISO PDF datasheet #5
- Current page: 273 of 430
- Download datasheet (7Mb)
19.3
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 19-5. 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 19-1:
© 2008 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 19-5.
⎞
⎠
⎞
⎟
⎠
⎞
⎟
⎠
+
+
[
+
+
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
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 19-1 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.
PIC18F2XK20/4XK20
⎞
⎠
)
]
;[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
DS41303D-page 271
APPLIED
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