PIC18F64J90-I/PT Microchip Technology, PIC18F64J90-I/PT Datasheet - Page 163

• Manufacturer Part Number: PIC18F64J90-I/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F64J90-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Ram Size: 1K 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
• 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: Lead free / RoHS Compliant, Lead free / RoHS Compliant

16.0
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 80-pin
devices, and 132 pixels (33 segments by 4 commons) in
64-pin devices.
FIGURE 16-1:
 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
PIC18F85J90 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 (80-pin devices) or 33 (64-pin devices)
• Three LCD clock sources with selectable prescaler,
A simplified block diagram of the module is shown in
Figure 16-1.
LCD
pump to support a range of fixed and variable bias
options
segments
with a fourth source available for use with the LCD
charge pump
4
48
Voltage
Bias
SEG<47:0>
COM3:COM0
DS39770C-page 163
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