PIC18F87J90 Datasheet, PDF (10/450 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt Technology

PIC18F87J90 FAMILY
1.2 LCD Driver
The on-chip LCD driver includes many features that
make the integration of displays in low-power
applications easier. These include an integrated
voltage regulator with charge pump that allows contrast
control in software and display operation above device
VDD.
1.3 Other Special Features
• Communications: The PIC18F87J90 family
incorporates a range of serial communication
peripherals, including an Addressable USART, a
separate Enhanced USART that supports
LIN/J2602 specification 1.2, and one Master SSP
module capable of both SPI and I²C™ (Master and
Slave) modes of operation.
• CCP Modules: All devices in the family incorporate
two Capture/Compare/PWM (CCP) modules. Up to
four different time bases may be used to perform
several different operations at once.
• 10-Bit A/D Converter: This module incorporates
programmable acquisition time, allowing for a
channel to be selected and a conversion to be
initiated without waiting for a sampling period and
thus, reducing code overhead.
• Charge Time Measurement Unit (CTMU): The
CTMU is a flexible analog module that provides
accurate differential time measurement between
pulse sources, as well as asynchronous pulse
generation.
Together with other on-chip analog modules, the
CTMU can precisely measure time, measure
capacitance or relative changes in capacitance, or
generate output pulses that are independent of the
system clock.
• Extended Watchdog Timer (WDT): This
enhanced version incorporates a 16-bit prescaler,
allowing an extended time-out range that is stable
across operating voltage and temperature. See
Section 28.0 “Electrical Characteristics” for
time-out periods.
• Real-Time Clock and Calendar Module
(RTCC): The RTCC module is intended for appli-
cations requiring that accurate time be maintained
for extended periods of time with minimum to no
intervention from the CPU.
The module is a 100-year clock and calendar
with automatic leap year detection. The range of
the clock is from 00:00:00 (midnight) on
January 1, 2000 to 23:59:59 on
December 31, 2099.
1.4 Details on Individual Family
Members
Devices in the PIC18F87J90 family are available in
64-pin and 80-pin packages. Block diagrams for the
two groups are shown in Figure 1-1 and Figure 1-2.
The devices are differentiated from each other in four
ways:
1. Flash program memory (two sizes, 64 Kbytes
for PIC18FX6J90 devices and 128 Kbytes for
PIC18FX7J90 devices).
2. Data RAM (3,923 bytes RAM for both
PIC18FX6J90 and PIC18FX7J90 devices).
3. I/O ports (7 bidirectional ports on PIC18F6XJ90
devices, 9 bidirectional ports on PIC18F8XJ90
devices).
4. LCD Pixels: 132 pixels (33 SEGs x 4 COMs) can
be driven by 64-pin devices; 192 pixels
(48 SEGs x 4 COMs) can be driven by 80-pin
devices.
All other features for devices in this family are identical.
These are summarized in Table 1-1 and Table 1-2.
The pinouts for all devices are listed in Table 1-3 and
Table 1-4.
DS39933D-page 10
 2010 Microchip Technology Inc.