PIC16F1947-I/PT Microchip Technology Inc., PIC16F1947-I/PT Datasheet - Page 335

• Manufacturer Part Number: PIC16F1947-I/PT
• Description: 64 TQFP 10x10x1mm TRAY28KB Flash, 1KB RAM, 256B EEPROM, LCD, 1.8-5.5V
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F1947-I/PT

• A/d Inputs: 17-Channel, 10-Bit
• Comparators: 3
• Cpu Speed: 8 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 54
• Interface: CAN/I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 28K Bytes
• Ram Size: 1K Bytes
• Speed: 32 MHz
• Timers: 4-8-bit, 1-16-bit
• Voltage, Range: 1.8-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

27.0
The Liquid Crystal Display (LCD) driver module
generates the timing control to drive a static or
multiplexed LCD panel. In the PIC16F/LF1946/47
device, the module drives the panels of up to four
commons and up to 46 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:
• Segment pins up to:
• Static, 1/2 or 1/3 LCD Bias
FIGURE 27-1:
 2010 Microchip Technology Inc.
- Static (1 common)
- 1/2 multiplex (2 commons)
- 1/3 multiplex (3 commons)
- 1/4 multiplex (4 commons)
- 64 (PIC16F/LF1946/47)
Note 1:
LIQUID CRYSTAL DISPLAY
(LCD) DRIVER MODULE
These are not directly connected to the I/O pads, but may be tri-stated, depending on the configuration of
the LCD module.
Data Bus
LCD DRIVER MODULE BLOCK DIAGRAM
F
T1OSC
LFINTOSC
OSC
/256
Timing Control
Clock Source
LCDDATAx
Select and
Registers
Prescaler
LCDCON
LCDSEn
LCDPS
Preliminary
COM<3:0>
MUX
27.1
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 6 LCD Segment Enable registers (LCDSEn)
• Up to 24 LCD data registers (LCDDATAn)
(LCDREF)
PIC16F/LF1946/47
SEG<23:0>
LCD Registers
To I/O Pads
(1)
To I/O Pads
(1)
DS41414B-page 335