MA180025 Microchip Technology, MA180025 Datasheet - Page 183

• Manufacturer Part Number: MA180025
• Description: MODULE PLUG-IN PIC18F87J90 PIM
• Manufacturer: Microchip Technology
• Series: PIC®r

Specifications of MA180025

• Accessory Type: Plug-In Module (PIM) - PIC18F87J90
• Product: Microcontroller Modules
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Silicon Core Number: PIC18F
• Silicon Family Name: PIC18FxxJxx
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PICDEM LCD 2 Demonstration Board (DM163030)
• For Use With: DM163030 - KIT DEV PICDEM LCD2
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

17.0
The Liquid Crystal Display (LCD) driver module
generates the timing control to drive a static or
multiplexed LCD panel. It also provides control of the
LCD pixel data. The module can drive panels of up to
192 pixels (48 segments by 4 commons) in
PIC18F8XJ90 devices and 132 pixels (33 segments by
4 commons) in PIC18F6XJ90 devices.
FIGURE 17-1:
 2010 Microchip Technology Inc.
INTOSC Oscillator
INTRC Oscillator
LIQUID CRYSTAL DISPLAY
(LCD) DRIVER MODULE
Data Bus
T13CKI
F
8
OSC
/4
LCD DRIVER MODULE BLOCK DIAGRAM
24 x 8 (= 4 x 48)
Timing Control
Source Select
LCDDATA23
LCDDATA22
LCD DATA
LCDDATA1
LCDDATA0
LCD Clock
LCDCON
LCDSEx
LCDPS
.
.
.
LCD Bias Generation
MUX
192
48
to
Charge Pump
PIC18F87J90 FAMILY
The LCD driver module supports these features:
• Direct driving of LCD panel
• On-chip bias generator with dedicated charge
• Up to four commons, with four Multiplexing modes
• Up to 48 (PIC18F8XJ90 devices) or 33
• Three LCD clock sources with selectable prescaler,
A simplified block diagram of the module is shown in
Figure 17-1.
LCD
pump to support a range of fixed and variable bias
options
(PIC18F6XJ90 devices) segments
with a fourth source available for use with the LCD
charge pump
4
48
Voltage
Bias
SEG<47:0>
COM<3:0>
DS39933D-page 183
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