PIC16F946T-I/PT Microchip Technology, PIC16F946T-I/PT Datasheet - Page 47

• Manufacturer Part Number: PIC16F946T-I/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F946T-I/PT

• 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: 53
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 336 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA160011 - DAUGHTER BOARD PICDEM LCD 16F91X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

3.3.3.8
Figure 3-13 shows the diagram for this pin. The
RB7/ICSPDAT/ICDDAT/SEG13 pin is configurable to
function as one of the following:
• a general purpose I/O
• an In-Circuit Serial Programming™ I/O
• an ICD data I/O
• an analog output for the LCD
FIGURE 3-13:
© 2005 Microchip Technology Inc.
PORT/Program Mode/ICD
Note 1:
PGD DRVEN
Set RBIF
From other
RB<7:4> pins
RB7/ICSPDAT/ICDDAT/SEG13
WR PORTB
WR TRISB
PGD
SEG13
Data Bus
To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
BLOCK DIAGRAM OF RB7/ICSPDAT/ICDDAT/SEG13
PGD
SE13 and LCDEN
TRIS Latch
SE13 and LCDEN
D
D
RBPU
Data Latch
RD PORTB
CK
RD TRISB
CK
(1)
Program Mode/ICD
Q
Q
Preliminary
0
1
Schmitt
Trigger Buffer
SE13 and LCDEN
1
0
Q
Q
Input Buffer
SE13 and LCDEN
EN
EN
D
D
TTL
V
P
DD
PIC16F946
Weak
Pull-up
RD PORTB
F
OSC
V
/4
DD
DS41265A-page 45
I/O Pin