PIC18F87J72-I/PT Microchip Technology, PIC18F87J72-I/PT Datasheet - Page 167

• Manufacturer Part Number: PIC18F87J72-I/PT
• Description: IC PIC MCU 8BIT 14KB FLSH 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F87J72-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 128KB (64K x 16)
• Package / Case: 80-TQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 51
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART, SPI, I2C
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14
• Controller Family/series: PIC18F
• No. Of I/o's: 51
• Ram Memory Size: 3923Byte
• Cpu Speed: 48MHz
• No. Of Timers: 4
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, 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
132 pixels (33 segments by 4 commons).
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
20 x 8 (= 4 x 40)
Timing Control
Source Select
LCDDATA22
LCDDATA21
LCD DATA
LCDDATA1
LCDDATA0
LCD Clock
LCDCON
LCDSEx
LCDPS
.
.
.
Preliminary
LCD Bias Generation
MUX
132
33
to
Charge Pump
PIC18F87J72 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 33 segments
• 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
with a fourth source available for use with the LCD
charge pump
4
33
Voltage
Bias
SEG<32:0>
COM<3:0>
DS39979A-page 167
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