PIC18F8490-E/PT Microchip Technology, PIC18F8490-E/PT Datasheet - Page 253
PIC18F8490-E/PT
Manufacturer Part Number
PIC18F8490-E/PT
Description
IC PIC MCU FLASH 16KX16 80TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F6310-IPT.pdf
(28 pages)
3.PIC18F6390-IPT.pdf
(414 pages)
4.PIC18F6390-IPT.pdf
(16 pages)
5.PIC18F6390-IPT.pdf
(12 pages)
6.PIC18F6390-IPT.pdf
(6 pages)
7.PIC18F6390-IPT.pdf
(4 pages)
Specifications of PIC18F8490-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, LCD, POR, PWM, WDT
Number Of I /o
66
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
80-TFQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
SPI, I2C, EUSART, AUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
66
Number Of Timers
4
Operating Supply Voltage
4.2 V to 5.5 V
Maximum Operating Temperature
+ 125 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, DM163028
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPDM163028 - BOARD DEMO PICDEM LCDAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F8490-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F6310-IPT PDF datasheet #2
- PIC18F6390-IPT PDF datasheet #3
- PIC18F6390-IPT PDF datasheet #4
- PIC18F6390-IPT PDF datasheet #5
- PIC18F6390-IPT PDF datasheet #6
- PIC18F6390-IPT PDF datasheet #7
- Current page: 253 of 414
- Download datasheet (7Mb)
21.0
PIC18F6390/6490/8390/8490
High/Low-Voltage Detect module (HLVD). This is a pro-
grammable circuit that allows the user to specify both a
device voltage trip point and the direction of change
from that point. If the device experiences an excursion
past the trip point in that direction, an interrupt flag is
set. If the interrupt is enabled, the program execution
will branch to the interrupt vector address and the
software can then respond to the interrupt.
REGISTER 21-1:
© 2007 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3-0
Note 1:
VDIRMAG
R/W-0
HIGH/LOW-VOLTAGE
DETECT (HLVD)
HLVDL3:HLVDL0 modes that result in a trip point below the valid operating voltage of the device are not
tested.
VDIRMAG: Voltage Direction Magnitude Select bit
1 = Event occurs when voltage equals or exceeds trip point (HLVDL3:HLVDL0)
0 = Event occurs when voltage equals or falls below trip point (HLVDL3:HLVDL0)
Unimplemented: Read as ‘0’
IRVST: Internal Reference Voltage Stable Flag bit
1 = Indicates that the voltage detect logic will generate the interrupt flag at the specified voltage range
0 = Indicates that the voltage detect logic will not generate the interrupt flag at the specified voltage
HLVDEN: High/Low-Voltage Detect Power Enable bit
1 = HLVD enabled
0 = HLVD disabled
HLVDL3:HLVDL0: Voltage Detection Limit bits
1111 = External analog input is used (input comes from the HLVDIN pin)
1110 = 4.41V-4.87V
1101 = 4.11V-4.55V
1100 = 3.92V-4.34V
1011 = 3.72V-4.12V
1010 = 3.53V-3.91V
1001 = 3.43V-3.79V
1000 = 3.24V-3.58V
0111 = 2.95V-3.26V
0110 = 2.75V-3.03V
0101 = 2.64V-2.92V
0100 = 2.43V-2.69V
0011 = 2.35V-2.59V
0010 = 2.16V-2.38V
0001 = 1.96V-2.16V
0000 = Reserved
range and the HLVD interrupt should not be enabled
U-0
—
HLVDCON: HIGH/LOW-VOLTAGE DETECT CONTROL REGISTER
W = Writable bit
‘1’ = Bit is set
devices
IRVST
R-0
have
PIC18F6390/6490/8390/8490
HLVDEN
R/W-0
a
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
HLVDL3
(1)
R/W-0
The
(Register 21-1) completely controls the operation of the
HLVD module. This allows the circuitry to be “turned
off” by the user under software control, which
minimizes the current consumption for the device.
The block diagram for the HLVD module is shown in
Figure 21-1.
(1)
High/Low-Voltage
HLVDL2
R/W-1
(1)
x = Bit is unknown
HLVDL1
Detect
R/W-0
(1)
DS39629C-page 251
Control
HLVDL0
R/W-1
register
bit 0
(1)
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