PIC18F66J90-I/PT Microchip Technology, PIC18F66J90-I/PT Datasheet - Page 52
![IC PIC MCU FLASH 64KB 64-TQFP](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC18F66J90-I/PT
Manufacturer Part Number
PIC18F66J90-I/PT
Description
IC PIC MCU FLASH 64KB 64-TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F67J90-IPT.pdf
(450 pages)
2.PIC18F67J90-IPT.pdf
(3 pages)
3.PIC18F67J90-IPT.pdf
(10 pages)
4.PIC18F66J90-IPT.pdf
(444 pages)
Specifications of PIC18F66J90-I/PT
Program Memory Type
FLASH
Program Memory Size
64KB (32K x 16)
Package / Case
64-TFQFP
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
Number Of I /o
51
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 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
3923 B
Interface Type
AUSART, EUSART, I2C, SPI
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
51
Number Of Timers
4
Operating Supply Voltage
2.65 V to 3.6 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, DV164136, DM163030
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164328 - MODULE SKT FOR 80TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F66J90-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18F87J90 FAMILY
4.6
PIC18F87J90 family devices incorporate an on-chip
Power-up Timer (PWRT) to help regulate the Power-on
Reset process. The PWRT is always enabled. The
main function is to ensure that the device voltage is
stable before code is executed.
The Power-up Timer (PWRT) of the PIC18F87J90 fam-
ily devices is an 11-bit counter which uses the INTRC
source as the clock input. This yields an approximate
time interval of 2048 x 32 μs = 65.6 ms. While the
PWRT is counting, the device is held in Reset.
The power-up time delay depends on the INTRC clock
and will vary from chip to chip due to temperature and
process variation. See DC parameter 33 for details.
FIGURE 4-3:
FIGURE 4-4:
DS39933C-page 50
INTERNAL RESET
INTERNAL RESET
PWRT TIME-OUT
PWRT TIME-OUT
INTERNAL POR
INTERNAL POR
Power-up Timer (PWRT)
MCLR
MCLR
V
V
DD
DD
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO V
TIME-OUT SEQUENCE ON POWER-UP (MCLR NOT TIED TO V
Preliminary
T
PWRT
T
PWRT
4.6.1
If enabled, the PWRT time-out is invoked after the POR
pulse has cleared. The total time-out will vary based on
the status of the PWRT. Figure 4-3, Figure 4-4,
Figure 4-5
sequences on power-up with the Power-up Timer
enabled.
Since the time-outs occur from the POR pulse, if MCLR
is kept low long enough, the PWRT will expire. Bringing
MCLR
(Figure 4-5). This is useful for testing purposes, or to
synchronize more than one PIC18FXXXX device
operating in parallel.
high
TIME-OUT SEQUENCE
and
will
Figure 4-6
begin
© 2009 Microchip Technology Inc.
DD
, V
execution
DD
all
DD
RISE < T
): CASE 1
depict
immediately
PWRT
time-out
)
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