PIC18LF8525T-I/PT Microchip Technology, PIC18LF8525T-I/PT Datasheet - Page 240
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18LF8525T-I/PT
Manufacturer Part Number
PIC18LF8525T-I/PT
Description
IC PIC MCU FLASH 24KX16 80TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheet
1.PIC18F6525-IPT.pdf
(396 pages)
Specifications of PIC18LF8525T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
48KB (24K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TFQFP
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3840 B
Interface Type
MSSP, SPI, I2C, EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
69
Number Of Timers
2 x 8 bit
Operating Supply Voltage
2 V to 5.5 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, ICE2000, ICE4000, DV164136, DM163032
Minimum Operating Temperature
- 40 C
On-chip Adc
16 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF8525T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- Current page: 240 of 396
- Download datasheet (8Mb)
PIC18F6525/6621/8525/8621
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 shown 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 2.5 kΩ. After the analog input channel is
selected (changed), this acquisition must be done
before the conversion can be started.
EQUATION 20-1:
EQUATION 20-2:
EQUATION 20-3:
DS39612B-page 238
T
V
or
Tc
T
Temperature coefficient is only required for temperatures > 25°C.
T
T
T
ACQ
ACQ
ACQ
C
ACQ
DD
Note:
HOLD
). The source impedance affects the offset voltage
A/D Acquisition Requirements
SS
=
=
=
=
=
=
SS
=
=
) impedance varies over the device voltage
When the conversion is started, the hold-
ing capacitor is disconnected from the
input pin.
) impedance directly affect the time
T
2 µs + T
-C
-120 pF (1 kΩ + 7 kΩ + 2.5 kΩ) ln(0.0004885)
-120 pF (10.5 kΩ) ln(0.0004885)
-1.26 µs (-7.6241)
9.61 µs
2 µs + 9.61 µs + [(50°C – 25°C)(0.05 µs/°C)]
11.61 µs + 1.25 µs
12.86 µs
Amplifier Settling Time + Holding Capacitor Charging Time + Temperature Coefficient
T
(V
-(120 pF)(1 kΩ + R
AMP
AMP
REF
HOLD
+ T
+ T
– (V
ACQUISITION TIME
A/D MINIMUM CHARGING TIME
CALCULATING THE MINIMUM REQUIRED ACQUISITION TIME
C
S
(R
C
) and the internal sampling
C
+ [(Temp – 25°C)(0.05 µs/°C)]
IC
REF
+ T
+ T
+ R
/2048)) • (1 – e
COFF
COFF
SS
HOLD
SS
+ R
HOLD
+ R
) must be allowed
S
) ln(1/2047)
S
. The sampling
) ln(1/2047)
(-Tc/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.
Example 20-3 shows the calculation of the minimum
required acquisition time, T
based
assumptions:
C
Rs
Conversion Error
V
Temperature
V
)
DD
HOLD
HOLD
calculate
on
the
the
=
=
≤
=
=
=
following
minimum
2005 Microchip Technology Inc.
120 pF
2.5 kΩ
1/2 LSb
5V → Rss = 7 kΩ
50°C (system max.)
0V @ time = 0
ACQ
. This calculation is
application
acquisition
system
time,
Related parts for PIC18LF8525T-I/PT
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![TC1014-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1014-5.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.8VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-4.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1186-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1186-2.85VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: