PIC18LF27J13T-I/SO Microchip Technology, PIC18LF27J13T-I/SO Datasheet - Page 395
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PIC18LF27J13T-I/SO
Manufacturer Part Number
PIC18LF27J13T-I/SO
Description
28-pin, GP, 128KB Flash, 4KB RAM, 12 MIPS, 12-bit ADC 28 SOIC .300in T/R
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Specifications of PIC18LF27J13T-I/SO
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 2.75 V
Data Converters
A/D 10x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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FIGURE 25-3:
25.5
In many applications, it is desirable to have the ability to
detect a drop below, or rise above, a particular threshold.
For general battery applications, Figure 25-4 provides
a possible voltage curve.
Over time, the device voltage decreases. When the
device voltage reaches voltage, V
generates an interrupt at time, T
cause the execution of an ISR, which would allow the
application to perform “housekeeping tasks” and
perform a controlled shutdown before the device
voltage exits the valid operating range at T
The HLVD, thus, would give the application a time
window, represented by the difference between T
T
2010 Microchip Technology Inc.
B
, to safely exit.
CASE 1:
CASE 2:
Enable HLVD
Enable HLVD
Applications
HLVDIF
HLVDIF
IRVST
IRVST
V
V
DD
DD
HIGH-VOLTAGE DETECT OPERATION (VDIRMAG =
HLVDIF may not be Set
Internal Reference is Stable
A
. The interrupt could
A
, the HLVD logic
B
.
A
Internal Reference is Stable
and
Preliminary
T
T
IRVST
IRVST
PIC18F47J13 FAMILY
HLVDIF Cleared in Software,
HLVDIF Remains Set since HLVD Condition still Exists
FIGURE 25-4:
V
V
A
B
Legend:
HLVDIF Cleared in Software
V
V
1
A
B
)
= HLVD trip point
= Minimum valid device
TYPICAL HIGH/
LOW-VOLTAGE DETECT
APPLICATION
operating voltage
Time
HLVDIF Cleared in Software
T
A
V
V
DS39974A-page 395
HLVD
HLVD
T
B
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