PIC18LF2523-I/SP Microchip Technology, PIC18LF2523-I/SP Datasheet - Page 250
![IC PIC MCU FLASH 16KX16 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18LF2523-I/SP
Manufacturer Part Number
PIC18LF2523-I/SP
Description
IC PIC MCU FLASH 16KX16 28-DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F2423-ISP.pdf
(54 pages)
3.PIC18F2423-ISP.pdf
(8 pages)
4.PIC18F2423-ISP.pdf
(34 pages)
5.PIC18F2523-ISO.pdf
(392 pages)
Specifications of PIC18LF2523-I/SP
Core Size
8-Bit
Program Memory Size
32KB (16K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 10x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Controller Family/series
PIC18
No. Of I/o's
25
Eeprom Memory Size
256Byte
Ram Memory Size
1.5KB
Cpu Speed
40MHz
No. Of Timers
4
Package
28SPDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
25
Interface Type
I2C/SPI/USART
On-chip Adc
10-chx12-bit
Number Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC18F2221-ISO PDF datasheet
- PIC18F2423-ISP PDF datasheet #2
- PIC18F2423-ISP PDF datasheet #3
- PIC18F2423-ISP PDF datasheet #4
- PIC18F2523-ISO PDF datasheet #5
- Current page: 250 of 392
- Download datasheet (7Mb)
PIC18F2423/2523/4423/4523
The module is enabled by setting the HLVDEN bit.
Each time that the HLVD module is enabled, the cir-
cuitry requires some time to stabilize. The IRVST bit is
a read-only bit and is used to indicate when the circuit
is stable. The module can only generate an interrupt
after the circuit is stable and IRVST is set.
The VDIRMAG bit determines the overall operation of
the module. When VDIRMAG is cleared, the module
monitors for drops in V
point. When the bit is set, the module monitors for rises
in V
22.1
When the HLVD module is enabled, a comparator uses
an internally generated reference voltage as the set
point. The set point is compared with the trip point,
where each node in the resistor divider represents a
trip point voltage. The “trip point” voltage is the voltage
level at which the device detects a high or low-voltage
event, depending on the configuration of the module.
FIGURE 22-1:
DS39755B-page 248
HLVDIN
DD
above the set point.
Operation
V
DD
Externally Generated
Trip Point
HLVDIN
HLVD MODULE BLOCK DIAGRAM (WITH EXTERNAL INPUT)
DD
below a predetermined set
HLVDEN
BOREN
V
DD
Preliminary
When the supply voltage is equal to the trip point, the
voltage tapped off of the resistor array is equal to the
internal reference voltage generated by the voltage
reference module (approximately 1.25V). The compar-
ator then generates an interrupt signal by setting the
HLVDIF bit.
The trip point voltage is software programmable to any one
of 15 trip point values, or an external voltage input. The trip
point is selected by programming the HLVDL3:HLVDL0
bits (HLVDCON<3:0>).
The HLVD module has an additional feature that allows
the user to supply the trip voltage to the module from an
external source. This mode is enabled when bits
HLVDL3:HLVDL0 are set to ‘1111’. In this state, the
comparator input is multiplexed from the external input
pin, HLVDIN. This gives users flexibility because it
allows them to configure the High/Low-Voltage Detect
interrupt to occur at any voltage in the valid operating
range.
HLVDL3:HLVDL0
Internal Voltage
Reference
HLVDEN
Approximately 1.25V
HLVDCON
Register
© 2007 Microchip Technology Inc.
VDIRMAG
HLVDIF
Set
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