PIC18F65J90-I/PT Microchip Technology, PIC18F65J90-I/PT Datasheet - Page 401

• Manufacturer Part Number: PIC18F65J90-I/PT
• Description: IC PIC MCU FLASH 16KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F65J90-I/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 51
• Program Memory Type: FLASH
• Ram Size: 2K 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
• Package / Case: 64-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 51
• Ram Memory Size: 2KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• No. Of Pwm Channels: 2
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: AUSART, EUSART, I2C, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 4
• 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, DM183030
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Package: 64TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164327 - MODULE SKT FOR 64TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

B.1
The
PIC18F85J90 and PIC18F8490 device families is the
power requirements. PIC18F85J90 family devices are
designed on a smaller process. This results in lower
maximum voltage and higher leakage current.
The operating voltage range for PIC18F85J90 devices
is 2.0V to 3.6V. In addition, these devices have split
power requirements: one for the core logic and one for
the I/O. One of the V
logic supply (V
and
Section 26.0 “Electrical Characteristics”.
B.2
PIC18F8490 and PIC18F85J90 family devices share a
similar range of oscillator options. The major difference
is that PIC18F85J90 family devices support a smaller
number of primary (external) oscillator options, namely
HS and EC Oscillator modes.
While both device families have an internal PLL that
can be used with the primary oscillators, the PLL for the
PIC18F85J90 family is not enabled as a device
configuration option. Instead, it must be enabled in
software.
The clocking differences should be considered when
making a conversion between the PIC18F8490 and
PIC18F85J90 device families.
B.3
When converting an LCD application between the
PIC18F85J90 and the PIC18F8490 families, the
following things must be considered:
• Available Segments: The module for
• Bias Generation: The PIC18F85J90 version of
 2010 Microchip Technology Inc.
PIC18F65J90 devices supports 33 segments, as
opposed to 32 segments in PIC18F6490 devices.
(The 80-pin devices of both families support
48 segments. All devices support 4 commons.)
the module also incorporates its own independent
voltage regulator, which supports 4 circuit configu-
rations for bias generation, voltage boost to
support displays that operate above device V
and software contrast control.
most
capacitor
Power Requirement Differences
Oscillator Differences
LCD Module
significant
DDCORE
requirements
DD
). This pin has specific voltage
pins is separated for the core
difference
as
between
described
DD
the
in
PIC18F85J90 FAMILY
• Additional LCD Function Pins: The
• Segment Assignments: Eight of the LCD
• Other Considerations: In all LCD applications,
TABLE B-2:
SEG16
SEG17
SEG18
SEG27
SEG28
SEG29
SEG30
SEG32
LCD Segment
PIC18F85J90 family of devices adds 3 additional
LCD function pins in comparison to the
PIC18F8490 family. The additional pins are
associated with LCD bias generation:
- LCDBIAS0 (RG0)
- V
- V
segment functions have been relocated to differ-
ent I/O pins than in PIC18F8490 devices. These
segments are listed in Table B-2.
the connections of PIC18F85J90 devices to
external components for LCD bias generation are
different than PIC18F8490 devices. The addition
of the LCDBIAS0 output requires that this pin be
included in bias component configurations. A
more complete discussion is provided in
Section 16.3 “LCD Bias Generation”.
The simultaneous use of the external Timer1
oscillator and Segment 32 is not allowed in
PIC18F85J90 devices, since these functions are
shared on the same pin.
Note:
LCAP
LCPA
1 (RG2)
2 (RG3)
Refer to the pinout diagrams for pin
locations of I/O ports.
ASSIGNMENTS OF MOVED
LCD SEGMENTS
PIC18F8490
RG3
RG2
RG0
RG0
RA2
RA3
RF0
RJ0
DS39770C-page 401
PIC18F85J90
RC4
RC3
RA1
RC6
RC7
RB5
RB0
RC1