PIC18F2520-I/SO Microchip Technology, PIC18F2520-I/SO Datasheet - Page 247
PIC18F2520-I/SO
Manufacturer Part Number
PIC18F2520-I/SO
Description
IC MCU FLASH 16KX16 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F2420-IML.pdf
(412 pages)
4.PIC18F2420-IML.pdf
(16 pages)
5.PIC18F2420-IML.pdf
(8 pages)
6.PIC18F2420-IML.pdf
(6 pages)
7.PIC18F2420-IML.pdf
(8 pages)
8.PIC18F2420-IML.pdf
(4 pages)
9.PIC18F4420-IP.pdf
(390 pages)
Specifications of PIC18F2520-I/SO
Program Memory Type
FLASH
Program Memory Size
32KB (16K x 16)
Package / Case
28-SOIC (7.5mm Width)
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
MSSP/SPI/I2C/PSP/USART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
25
Number Of Timers
4
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, DM163022, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MILMCP3909RD-3PH1 - REF DESIGN MCP3909 3PH ENGY MTR
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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Price
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- PIC16F616T-ISL PDF datasheet
- PIC18F2221-ISO PDF datasheet #2
- PIC18F2420-IML PDF datasheet #3
- PIC18F2420-IML PDF datasheet #4
- PIC18F2420-IML PDF datasheet #5
- PIC18F2420-IML PDF datasheet #6
- PIC18F2420-IML PDF datasheet #7
- PIC18F2420-IML PDF datasheet #8
- PIC18F4420-IP PDF datasheet #9
- Current page: 247 of 390
- Download datasheet (8Mb)
22.2
The following steps are needed to set up the HLVD
module:
1.
2.
3.
4.
5.
22.3
When the module is enabled, the HLVD comparator
and voltage divider are enabled and will consume static
current. The total current consumption, when enabled,
is specified in electrical specification parameter D022B.
FIGURE 22-2:
2004 Microchip Technology Inc.
Write the value to the HLVDL3:HLVDL0 bits that
selects the desired HLVD trip point.
Set the VDIRMAG bit to detect high voltage
(VDIRMAG = 1) or low voltage (VDIRMAG = 0).
Enable the HLVD module by setting the
HLVDEN bit.
Clear the HLVD interrupt flag (PIR2<2>), which
may have been set from a previous interrupt.
Enable the HLVD interrupt if interrupts are
desired by setting the HLVDIE and GIE bits
(PIE2<2> and INTCON<7>). An interrupt will not
be generated until the IRVST bit is set.
CASE 1:
CASE 2:
Enable HLVD
Enable HLVD
HLVD Setup
Current Consumption
HLVDIF
HLVDIF
IRVST
IRVST
V
V
DD
DD
LOW-VOLTAGE DETECT OPERATION (VDIRMAG =
Internal Reference is stable
PIC18F2420/2520/4420/4520
Internal Reference is stable
T
T
IVRST
IVRST
HLVDIF may not be set
HLVDIF cleared in software,
HLVDIF remains set since HLVD condition still exists
Depending on the application, the HLVD module does
not need to be operating constantly. To decrease the
current requirements, the HLVD circuitry may only
need to be enabled for short periods where the voltage
is checked. After doing the check, the HLVD module
may be disabled.
22.4
The internal reference voltage of the HLVD module,
specified in electrical specification parameter D420,
may be used by other internal circuitry, such as the
Programmable Brown-out Reset. If the HLVD or other
circuits using the voltage reference are disabled to
lower the device’s current consumption, the reference
voltage circuit will require time to become stable before
a low or high-voltage condition can be reliably
detected. This start-up time, T
is independent of device clock speed. It is specified in
electrical specification parameter 36.
The HLVD interrupt flag is not enabled until T
expired and a stable reference voltage is reached. For
this reason, brief excursions beyond the set point may
not be detected during this interval. Refer to
Figure 22-2 or Figure 22-3.
HLVD Start-up Time
HLVDIF cleared in software
0
)
HLVDIF cleared in software
IRVST
V
V
DS39631A-page 245
, is an interval that
LVD
LVD
IRVST
has
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