PIC16LF1907-E/P Microchip Technology, PIC16LF1907-E/P Datasheet - Page 185

• Manufacturer Part Number: PIC16LF1907-E/P
• Description: 14KB Flash, 512B RAM, LCD, 14x10b ADC, EUSART, NanoWatt XLP 40 PDIP .600in TUBE
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16LF1907-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: LIN, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

19.0
The Liquid Crystal Display (LCD) driver module
generates the timing control to drive a static or
multiplexed LCD panel. In the PIC16LF1904/6/7
device, the module drives the panels of up to four
commons and up to 116 total segments. The LCD
module also provides control of the LCD pixel data.
The LCD driver module supports:
• Direct driving of LCD panel
• Three LCD clock sources with selectable prescaler
• Up to four common pins:
• 19 Segment pins (PIC16LF1906 only)
• 29 Segment pins (PIC16LF1904/7 only)
• Static, 1/2 or 1/3 LCD Bias
FIGURE 19-1:
 2011 Microchip Technology Inc.
- Static (1 common)
- 1/2 multiplex (2 commons)
- 1/3 multiplex (3 commons)
- 1/4 multiplex (4 commons)
Note:
Note 1:
LIQUID CRYSTAL DISPLAY
(LCD) DRIVER MODULE
COM3 and SEG15 share the same
physical
therefore SEG15 is not available when
using 1/4 multiplex displays.
2:
These are not directly connected to the I/O pads, but may be tri-stated, depending on the configuration of
the LCD module.
COM3 and SEG15 share the same physical pin, therefore SEG15 is not available when using 1/4 multi-
plex displays. For the PIC16LF1906 device only.
Data Bus
pin
LCD DRIVER MODULE BLOCK DIAGRAM
F
T1OSC
LFINTOSC
OSC
on
/256
the
Timing Control
PIC16LF1906,
Clock Source
LCDDATAx
Select and
Registers
Prescaler
LCDCON
LCDSEn
LCDPS
Preliminary
COM<3:0>
MUX
19.1
The module contains the following registers:
• LCD Control register (LCDCON)
• LCD Phase register (LCDPS)
• LCD Reference Ladder register (LCDRL)
• LCD Contrast Control register (LCDCST)
• LCD Reference Voltage Control register
• Up to 4 LCD Segment Enable registers (LCDSEn)
• Up to 16 LCD data registers (LCDDATAn)
(LCDREF)
SEG<28:0>
LCD Registers
PIC16LF1904/6/7
To I/O Pads
(2)
(1)
To I/O Pads
(1)
DS41569A-page 185