PIC16LF1934-I/P Microchip Technology, PIC16LF1934-I/P Datasheet - Page 342
![IC PIC MCU FLASH 256KX7 40-PDIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC16LF1934-I/P
Manufacturer Part Number
PIC16LF1934-I/P
Description
IC PIC MCU FLASH 256KX7 40-PDIP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Specifications of PIC16LF1934-I/P
Core Size
8-Bit
Program Memory Size
7KB (4K 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
256 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
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC16LF
Eeprom Memory Size
256Byte
Ram Memory Size
256Byte
Cpu Speed
32MHz
No. Of Timers
5
Interface
EUSART, I2C, SPI
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LF1934-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC16LF1934-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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PIC16F193X/LF193X
26.5
The LCD driver module can be configured into one of
four multiplex types:
• Static (only COM0 is used)
• 1/2 multiplex (COM<1:0> are used)
• 1/3 multiplex (COM<2:0> are used)
• 1/4 multiplex (COM<3:0> are used)
The LMUX<1:0> bit setting of the LCDCON register
decides which of the LCD common pins are used (see
Table 26-4 for details).
If the pin is a digital I/O, the corresponding TRIS bit
controls the data direction. If the pin is a COM drive,
then the TRIS setting of that pin is overridden.
TABLE 26-4:
26.6
The LCDSEn registers are used to select the pin
function for each segment pin. The selection allows
each pin to operate as either an LCD segment driver or
as one of the pin’s alternate functions. To configure the
pin as a segment pin, the corresponding bits in the
LCDSEn registers must be set to ‘1’.
If the pin is a digital I/O, the corresponding TRIS bit
controls the data direction. Any bit set in the LCDSEn
registers overrides any bit settings in the corresponding
TRIS register.
26.7
The LCDDATAx registers contain bits which define the
state of each pixel. Each bit defines one unique pixel.
Register 26-6 shows the correlation of each bit in the
LCDDATAx registers to the respective common and
segment signals.
Any LCD pixel location not being used for display can
be used as general purpose RAM.
26.8
The rate at which the COM and SEG outputs change is
called the LCD frame frequency.
DS41364D-page 342
Multiplex
Note:
Static
1/2
1/3
1/4
LCD Multiplex Types
Segment Enables
Pixel Control
LCD Frame Frequency
On a Power-on Reset, these pins are
configured as normal I/O, not LCD pins.
LMUX
<1:0>
00
01
10
11
COMMON PIN USAGE
Unused
Unused
Unused
COM3
Active
Unused
Unused
COM2
Active
Active
Unused
COM1
Active
Active
Active
Preliminary
TABLE 26-5:
TABLE 26-6:
Multiplex
Note:
LP<3:0>
Static
1/2
1/3
1/4
2
3
4
5
6
7
Clock source is F
LFINTOSC.
Clock source/(4 x 1 x (LP<3:0> + 1))
Clock source/(2 x 2 x (LP<3:0> + 1))
Clock source/(1 x 3 x (LP<3:0> + 1))
Clock source/(1 x 4 x (LP<3:0> + 1))
Static
FRAME FREQUENCY
FORMULAS
APPROXIMATE FRAME
FREQUENCY (IN Hz) USING
F
32.768 kHz OR LFINTOSC
85
64
51
43
37
32
OSC
Frame Frequency =
2009 Microchip Technology Inc.
@ 8 MHz, TIMER1 @
1/2
85
64
51
43
37
32
OSC
/256, T1OSC or
114
1/3
85
68
57
49
43
1/4
85
64
51
43
37
32
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