PIC18F87K90 Datasheet, PDF (10/566 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC18F87K90 FAMILY
The PIC18F87K90 family is also largely pin-compatible
with other PIC18 families, such as the PIC18F8720,
PIC18F8722,
PIC18F85J11,
PIC18F8490,
PIC18F85J90, PIC18F87J90 and PIC18F87J93 families
of microcontrollers with LCD drivers. This allows a new
dimension to the evolution of applications, allowing
developers to select different price points within
Microchip’s PIC18 portfolio, while maintaining a similar
feature set.
1.2 LCD Driver
The on-chip LCD driver includes many features that
ease the integration of displays in low-power
applications. These include an integrated internal
resistor ladder, so bias voltages can be generated
internally. This enables software-controlled contrast
control and eliminates the need for external bias
voltage resistors.
1.3 Other Special Features
• Communications: The PIC18F87K90 family
incorporates a range of serial communication
peripherals including two Enhanced USART, that
support LIN/J2602, and two Master SSP modules
capable of both SPI and I²C™ (Master and Slave)
modes of operation.
• CCP Modules: PIC18F87K90 family devices
incorporate up to seven or five Capture/
Compare/PWM (CCP) modules. Up to six different
time bases can be used to perform several different
operations at once.
• ECCP Modules: The PIC18F87K90 family has
three Enhanced CCP (ECCP) modules to
maximize flexibility in control applications:
- Up to eight different time bases for performing
several different operations at once
- Up to four PWM outputs for each module, for
a total of 12 PWMs
- Other beneficial features, such as polarity
selection, programmable dead time,
auto-shutdown and restart, and Half-Bridge
and Full-Bridge Output modes
• 12-Bit A/D Converter: The PIC18F87K90 family
has differential ADC. It incorporates program-
mable acquisition time, allowing for a channel to
be selected and a conversion to be initiated with-
out waiting for a sampling period, and thus,
reducing code overhead.
• Charge Time Measurement Unit (CTMU): The
CTMU is a flexible analog module that provides accu-
rate 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.
• LP Watchdog Timer (WDT): This enhanced
version incorporates a 22-bit prescaler, allowing
an extended time-out range that is stable across
operating voltage and temperature. See
Section 31.0 “Electrical Characteristics” for
time-out periods.
• Real-Time Clock and Calendar Module (RTCC):
The RTCC module is intended for applications
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 PIC18F87K90 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 these
ways:
• Flash Program Memory –
- PIC18FX5K90 (PIC18F65K90 and
PIC18F85K90) – 32 Kbytes
- PIC18FX6K90 (PIC18F66K90 and
PIC18F86K90) – 64 Kbytes
- PIC18FX7K90 (PIC18F67K90 and
PIC18F87K90) – 128 Kbytes
• Data RAM
- All devices except PIC18FX5K90 – 4 Kbytes
- PIC18FX5K90 – 2 Kbytes
• I/O Ports
- PIC18F6XK90 (64-pin devices) – Seven
bidirectional ports
- PIC18F8XK90 (80-pin devices) – Nine
bidirectional ports
• LCD Pixels:
- PIC18F6XK90 – 132 pixels
(33 SEGs x 4 COMs)
- PIC18F8XK90 – 192 pixels
(48 SEGs x 4 COMs)
• CCP Module
- All devices except PIC18FX5K90 have seven
CCP modules, PIC18FX5K90 has only five
CCP modules
• Timers
- All devices except 18FX5K90 have six 8-bit timers
and five 16-bit timers, PIC18FX5K90 has only four
8-bit timers and four 16-bit timers.
• A/D Channels
- All PIC18F8XK90 devices have 24 A/D
channels, all PIC18F6XK90 devices have
16 A/D channels
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.
DS39957B-page 10
Preliminary
 2010 Microchip Technology Inc.