PIC16F721T-I/ML Microchip Technology, PIC16F721T-I/ML Datasheet - Page 59

• Manufacturer Part Number: PIC16F721T-I/ML
• Description: 7 KB FLASH, 256 B SRAM, 18 I/O 20 QFN 4x4mm T/R
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F721T-I/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.2.4
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 SSP, I
appropriate section in this data sheet.
6.2.4.1
Figure 6-7
is configurable to function as one of the following:
• General purpose I/O. Individually controlled
• Analog input for the A/D
• Synchronous Serial Port Input (SPI)
• I
6.2.4.2
Figure 6-8
is configurable to function as one of the following:
• General purpose I/O. Individually controlled
• Analog input for the A/D
• USART asynchronous receive
• USART synchronous receive
6.2.4.3
Figure 6-9
is configurable to function as one of the following:
• General purpose I/O. Individually controlled
• Synchronous Serial Port clock for both SPI and
6.2.4.4
Figure 6-10
pin is configurable to function as one of the following:
• General purpose I/O. Individually controlled
• USART asynchronous transmit
• USART synchronous clock
 2010 Microchip Technology Inc.
interrupt-on-change. Individually enabled pull-up.
interrupt-on-change. Individually enabled pull-up.
interrupt-on-change. Individually enabled pull-up.
I
interrupt-on-change. Individually enabled pull-up.
2
2
C data I/O
C
shows the diagram for this pin. The RB4 pin
shows the diagram for this pin. The RB5 pin
shows the diagram for this pin. The RB6 pin
PIN DESCRIPTIONS AND
DIAGRAMS
shows the diagram for this pin. The RB7
RB4/AN10/SDI/SDA
RB5/AN11/RX/DT
RB6/SCK/SCL
RB7/TX/CK
2
C™ or interrupts, refer to the
FIGURE 6-7:
Data Bus
Note
PORTB
PORTB
WPUB
WPUB
TRISB
TRISB
IOCB
IOCB
Interrupt-on-
WR
WR
WR
WR
RD
RD
RD
RD
Change
PIC16F/LF720/721
1:
D
D
D
D
To SSP
To A/D Converter
CK
CK
CK
CK
ANSEL determines Analog Input mode.
Q
Q
Q
Q
Q
Q
Q
Q
Input mode
BLOCK DIAGRAM OF RB4
RD PORTB
Analog
SSP
From
SSP
SSPEN
(1)
RABPU
1
0
0
1
Input mode
Analog
1
0
0
1
Q
Q
EN
EN
DS41430A-page 59
(1)
D
D
V
DD
Weak
V
V
Q3
DD
SS
ST
I/O Pin