PIC16F913-I/SO Microchip Technology, PIC16F913-I/SO Datasheet - Page 151

• Manufacturer Part Number: PIC16F913-I/SO
• Description: IC PIC MCU FLASH 4KX14 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F913-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 24
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SSP/I2C/AUSART/SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164120
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MIL
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

10.4
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 the function of RB5, RA2 or either RA3 or RD0
pins (see Table 10-2 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 10-2:
10.5
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.
10.6
The LCDDATAx registers contain bits which define the
state of each pixel. Each bit defines one unique pixel.
Register 10-4 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.
© 2007 Microchip Technology Inc.
Note
Multiplex
Static
Note:
Note:
1/2
1/3
1/4
1:
LCD Multiplex Types
Segment Enables
Pixel Control
RA3 for PIC16F913/916, RD0 for PIC16F914/917 and
PIC16F946
On a Power-on Reset, the LMUX<1:0>
bits of the LCDCON register are ‘11’.
On a Power-on Reset, these pins are
configured as digital I/O.
LMUX
<1:0>
00
01
10
11
RA3/RD0, RA2, RB5
FUNCTION
COM3 Driver COM2 Driver COM1 Driver
RA3/RD0
Digital I/O
Digital I/O
Digital I/O
(1)
COM2 Driver COM1 Driver
Digital I/O
Digital I/O
RA2
COM1 Driver
Digital I/O
PIC16F913/914/916/917/946
RB5
10.7
The rate at which the COM and SEG outputs change is
called the LCD frame frequency.
TABLE 10-3:
TABLE 10-4:
Multiplex
Note:
LP<3:0>
Static
1/2
1/3
1/4
2
3
4
5
6
7
LCD Frame Frequency
Clock source is F
LFINTOSC/32.
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 =
@ 8 MHz, TIMER1 @
OSC
1/2
85
64
51
43
37
32
/8192, T1OSC/32 or
DS41250F-page 149
114
1/3
85
68
57
49
43
1/4
85
64
51
43
37
32