PIC16F946T-I/PT Microchip Technology, PIC16F946T-I/PT Datasheet - Page 43

• 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

FIGURE 3-9:
© 2005 Microchip Technology Inc.
Note 1:
WR PORTB
WR TRISB
Data Bus
RBPU
2:
To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
RB0 only.
(1)
BLOCK DIAGRAM OF RB<3:0>
SEG<3:0>
INT
TRIS Latch
Data Latch
D
D
CK
CK
(2)
RD TRISB
Q
Q
SE0 and LCDEN
RD PORTB
SE<3:0> and LCDEN
Preliminary
SE<3:0> and LCDEN
SE<3:0>
Schmitt
Trigger
Input Buffer
TTL
V
P
DD
Weak
Pull-up
PIC16F946
V
DD
DS41265A-page 41
I/O Pin