PIC18F8490-I/PT Microchip Technology, PIC18F8490-I/PT Datasheet - Page 256
PIC18F8490-I/PT
Manufacturer Part Number
PIC18F8490-I/PT
Description
IC PIC MCU FLASH 8KX16 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)
8.PIC18F8490-IPT.pdf
(412 pages)
Specifications of PIC18F8490-I/PT
Program Memory Type
FLASH
Program Memory Size
16KB (8K x 16)
Package / Case
80-TFQFP
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
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 ~ 85°C
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
+ 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, DM163028
Minimum Operating Temperature
- 25 C
On-chip Adc
12-ch x 10-bit
Package
80TQFP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPDM163028 - BOARD DEMO PICDEM LCDAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F8490-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F8490-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- 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
- PIC18F8490-IPT PDF datasheet #8
- Current page: 256 of 414
- Download datasheet (7Mb)
PIC18F6390/6490/8390/8490
FIGURE 21-3:
21.5
In many applications, the ability to detect a drop below,
or rise above a particular threshold, is desirable. For
example, the HLVD module could be periodically
enabled to detect USB attach or detach. This assumes
the device is powered by a lower voltage source than
the Universal Serial Bus when detached. An attach
would indicate a high-voltage detect from, for example,
3.3V to 5V (the voltage on USB) and vice versa for a
detach. This feature could save a design a few extra
components and an attach signal (input pin).
For general battery applications, Figure 21-4 shows a
possible voltage curve. Over time, the device voltage
decreases. When the device voltage reaches voltage,
V
The interrupt could cause the execution of an ISR,
which would allow the application to perform “house-
keeping tasks” and perform a controlled shutdown
before the device voltage exits the valid operating
range at T
application a time window, represented by the
difference between T
DS39629C-page 254
A
, the HLVD logic generates an interrupt at time, T
CASE 1:
CASE 2:
Enable HLVD
Enable HLVD
Applications
B
HLVDIF
HLVDIF
. The HLVD, thus, would give the
IRVST
IRVST
V
V
DD
DD
A
HIGH-VOLTAGE DETECT OPERATION (VDIRMAG =
and T
HLVDIF may not be set
Internal Reference is stable
B
, to safely exit.
Internal Reference is stable
T
T
IRVST
IRVST
A
.
HLVDIF cleared in software,
HLVDIF remains set since HLVD condition still exists
FIGURE 21-4:
V
V
A
B
Legend:
HLVDIF cleared in software
V
V
A
B
1
= HLVD trip point
= Minimum valid device
)
TYPICAL LOW-VOLTAGE
DETECT APPLICATION
operating voltage
© 2007 Microchip Technology Inc.
Time
HLVDIF cleared in software
T
A
V
V
LVD
LVD
T
B
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