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PIC16F946-E/MLQTP датащи(PDF) 58 Page - Microchip Technology

номер детали PIC16F946-E/MLQTP
подробное описание детали  28/40/44/64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
PDF  330 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F946-E/MLQTP датащи(HTML) 58 Page - Microchip Technology

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PIC16F913/914/916/917/946
DS41250F-page 56
© 2007 Microchip Technology Inc.
3.4.3
PIN DESCRIPTIONS AND
DIAGRAMS
Each PORTB pin is multiplexed with other functions. The
pins and their combined functions are briefly described
here. For specific information about individual functions
such as the LCD or interrupts, refer to the appropriate
section in this data sheet.
3.4.3.1
RB0/INT/SEG0
Figure 3-9 shows the diagram for this pin. The RB0 pin
is configurable to function as one of the following:
• a general purpose I/O
• an external edge triggered interrupt
• an analog output for the LCD
3.4.3.2
RB1/SEG1
Figure 3-9 shows the diagram for this pin. The RB1 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog output for the LCD
3.4.3.3
RB2/SEG2
Figure 3-9 shows the diagram for this pin. The RB2 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog output for the LCD
3.4.3.4
RB3/SEG3
Figure 3-9 shows the diagram for this pin. The RB3 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog output for the LCD
FIGURE 3-9:
BLOCK DIAGRAM OF RB<3:0>
Q
D
CK
Data Latch
TRIS Latch
RD TRISB
RD PORTB
Q
D
CK
TTL
Input Buffer
SE<3:0> and LCDEN
Data Bus
WR PORTB
WR TRISB
P
VDD
I/O Pin
Weak
Pull-up
SE<3:0>
SEG<3:0>
INT(1)
RBPU
Note 1: RB0 only.
SE<3:0> and LCDEN
VDD
VSS
WPUB<3:0>
Schmitt Trigger
SE0 and LCDEN



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