PIC18F87J90-I/PT Microchip Technology, PIC18F87J90-I/PT Datasheet - Page 207
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PIC18F87J90-I/PT
Manufacturer Part Number
PIC18F87J90-I/PT
Description
IC PIC MCU FLASH 128KB 80-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 PIC18F87J90-I/PT
Program Memory Type
FLASH
Program Memory Size
128KB (64K x 16)
Package / Case
80-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
67
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
67
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
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 64/80AC164323 - MODULE SKT FOR 100TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F87J90-I/PT
Manufacturer:
MICROCHIP
Quantity:
4 000
Company:
Part Number:
PIC18F87J90-I/PT
Manufacturer:
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Quantity:
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17.10 Operation During Sleep
The LCD module can operate during Sleep. The selec-
tion is controlled by the SLPEN bit (LCDCON<6>).
Setting the SLPEN bit allows the LCD module to go to
Sleep. Clearing the SLPEN bit allows the module to
continue to operate during Sleep.
If a SLEEP instruction is executed and SLPEN = 1, the
LCD module will cease all functions and go into a very
low-current consumption mode. The module will stop
operation immediately and drive the minimum LCD
voltage on both segment and common lines.
Figure 17-18 shows this operation.
To ensure that no DC component is introduced on the
panel, the SLEEP instruction should be executed imme-
diately after a LCD frame boundary. The LCD interrupt
can be used to determine the frame boundary. See
Section 17.9 “LCD Interrupts” for the formulas to
calculate the delay.
If a SLEEP instruction is executed and SLPEN = 0, the
module will continue to display the current contents of
the LCDDATA registers. To allow the module to
continue operation while in Sleep, the clock source
must be either the Timer1 oscillator or one of the
FIGURE 17-18:
2010 Microchip Technology Inc.
COM0
COM1
COM2
SEG0
SLEEP ENTRY/EXIT WHEN SLPEN = 1 OR CS<1:0> = 00
2 Frames
SLEEP
Instruction Execution
PIC18F87J90 FAMILY
internal oscillators (either INTRC or INTOSC as the
default system clock). While in Sleep, the LCD data
cannot be changed. The LCD module current
consumption will not decrease in this mode; however,
the overall consumption of the device will be lower due
to shut down of the core and other peripheral functions.
If the system clock is selected, and the module is not
configured for Sleep operation, the module will ignore
the SLPEN bit and stop operation immediately. The
minimum LCD voltage will then be driven onto the
segments and commons
17.10.1
Applications that use the LCD regulator for bias
generation may not achieve the same degree of power
reductions in Sleep mode when compared to applica-
tions using Mode 3 (resistor ladder) biasing. This is
particularly true with Mode 0 operation, where the
charge pump is active.
If Modes 0, 1 or 2 are used for bias generation,
software contrast control will not be available.
Wake-up
USING THE LCD REGULATOR
DURING SLEEP
DS39933D-page 207
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