PIC16LF1939-I/PT Microchip Technology, PIC16LF1939-I/PT Datasheet - Page 327
PIC16LF1939-I/PT
Manufacturer Part Number
PIC16LF1939-I/PT
Description
IC MCU 8BIT FLASH 44TQFP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Specifications of PIC16LF1939-I/PT
Core Size
8-Bit
Program Memory Size
28KB (16K x 14)
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
36
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Controller Family/series
PIC16LF
Eeprom Memory Size
256Byte
Ram Memory Size
1024Byte
Cpu Speed
32MHz
No. Of Timers
5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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26.0
The Liquid Crystal Display (LCD) driver module
generates the timing control to drive a static or
multiplexed LCD panel. In the PIC16F193X/LF193X
device, the module drives the panels of up to four
commons and up to 24 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:
FIGURE 26-1:
2009 Microchip Technology Inc.
- Static (1 common)
- 1/2 multiplex (2 commons)
- 1/3 multiplex (3 commons)
- 1/4 multiplex (4 commons)
Note 1:
LIQUID CRYSTAL DISPLAY
(LCD) DRIVER MODULE
2:
3:
These are not directly connected to the I/O pads, but may be tri-stated, depending on the configuration of
the LCD module.
SEG<23:0> on PIC16F1934/1937/1939, SEG<15:0> on PIC16F1933/1936/1938/
PIC16LF1933/1936/1938.
COM3 and SEG15 share the same physical pin on the PIC16F1933/1936/1938/PIC16LF1933/1936/1938,
therefore SEG15 is not available when using 1/4 multiplex displays.
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
• Segment pins up to:
• Static, 1/2 or 1/3 LCD Bias
(3)
PIC16F193X/LF193X
- 16 (PIC16F1933/1936/1938/
- 24 (PIC16F1934/1937/1939/
Note:
PIC16LF1933/1936/1938)
PIC16LF1934/1937/1939)
SEG<23:0>
To I/O Pads
displays.
COM3 and SEG15 share the same physical
pin on the PIC16F1933/1936/1938/
PIC16LF1933/1936/1938, therefore SEG15
is not available when using 1/4 multiplex
(1, 3)
(1)
To I/O Pads
(1)
DS41364D-page 327
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