PIC16F1938-I/ML Microchip Technology, PIC16F1938-I/ML Datasheet - Page 251
PIC16F1938-I/ML
Manufacturer Part Number
PIC16F1938-I/ML
Description
IC MCU 8BIT FLASH 28QFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheets
1.PIC16F722-ISS.pdf
(8 pages)
2.PIC16LF1933-ISS.pdf
(508 pages)
3.PIC16LF1933-ISS.pdf
(46 pages)
4.PIC16F1938-ISS.pdf
(10 pages)
5.PIC16F1938-IML.pdf
(418 pages)
Specifications of PIC16F1938-I/ML
Core Size
8-Bit
Program Memory Size
28KB (16K x 14)
Oscillator Type
Internal
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
25
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 11x10b
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Controller Family/series
PIC16F
No. Of I/o's
25
Eeprom Memory Size
256Byte
Ram Memory Size
1024Byte
Cpu Speed
32MHz
Package
28QFN EP
Device Core
PIC
Family Name
PIC16
Maximum Speed
32 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
25
Interface Type
I2C/SPI/USART
On-chip Adc
11-chx10-bit
Number Of Timers
5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F1938-I/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F722-ISS PDF datasheet
- PIC16LF1933-ISS PDF datasheet #2
- PIC16LF1933-ISS PDF datasheet #3
- PIC16F1938-ISS PDF datasheet #4
- PIC16F1938-IML PDF datasheet #5
- Current page: 251 of 418
- Download datasheet (7Mb)
21.3
The LCD module can be configured for one of three
bias types:
• Static Bias (2 voltage levels: V
• 1/2 Bias (3 voltage levels: V
• 1/3 Bias (4 voltage levels: V
FIGURE 21-3:
© 2009 Microchip Technology Inc.
V
2/3 V
VLCD3
VLCD2
VLCD1
LCD
)
LCD
1.024V from
FVR
LCD Bias Voltage Generation
and V
VLCD3PE
VLCD2PE
LCD
VLCD1PE
)
x 3
LCD BIAS VOLTAGE GENERATION BLOCK DIAGRAM
V
DD
SS
SS
3.072V
SS
, 1/2 V
, 1/3 V
and V
LCD
LCD
LCD
,
and
)
Preliminary
LCDCST<2:0>
TABLE 21-2:
So that the user is not forced to place external compo-
nents and use up to three pins for bias voltage generation,
internal contrast control and an internal reference ladder
are provided internally to the PIC16F193X/LF193X. Both
of these features may be used in conjunction with the
external VLCD<3:1> pins, to provide maximum flexibility.
Refer to Figure 21-3.
PIC16F193X/LF193X
LCD Bias 0
LCD Bias 1
LCD Bias 2
LCD Bias 3
LCDIRE
LCDA
LCDIRS
LCDA
LCDIRE
LCDIRS
Static Bias
V
LCD BIAS VOLTAGES
V
LCD
—
—
SS
3
LCDA
BIASMD
1/2 Bias
1/2 V
1/2 V
V
V
LCD
SS
LCDRLP0
LCDRLP1
DS41364C-page 251
DD
DD
3
lcdbias3
lcdbias2
lcdbias0
lcdbias1
1/3 Bias
1/3 V
2/3 V
V
V
LCD
SS
DD
DD
3
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