PIC16F721-I/SO Microchip Technology, PIC16F721-I/SO Datasheet - Page 60

• Manufacturer Part Number: PIC16F721-I/SO
• Description: MCU PIC 4K FLASH 20-SOIC
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F721-I/SO

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Number Of I /o: 17
• 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: 20-SOIC (0.300", 7.50mm Width)
• Controller Family/series: PIC16F
• No. Of I/o's: 18
• Ram Memory Size: 256Byte
• Cpu Speed: 16MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F/LF720/721
FIGURE 6-8:
DS41430A-page 60
Data Bus
PORTB
PORTB
WPUB
WPUB
TRISB
TRISB
IOCB
IOCB
Interrupt-on-
WR
WR
WR
WR
RD
RD
RD
RD
Change
Note
D
D
D
D
To AUSART RX/DT
To A/D Converter
1:
CK
CK
CK
CK
Q
Q
Q
Q
Q
Q
Q
Q
ANSEL determines Analog Input mode.
Input mode
BLOCK DIAGRAM OF RB5
RD PORTB
Analog
AUSART
From
AUSART
SYNC
SPEN
Input mode
DT
(1)
RABPU
Analog
1
0
0
1
1
0
0
1
Q
Q
EN
EN
(1)
D
D
V
DD
Weak
V
V
Q3
DD
SS
ST
I/O Pin
FIGURE 6-9:
Data Bus
PORTB
PORTB
WPUB
WPUB
TRISB
TRISB
IOCB
IOCB
Interrupt-on-
WR
WR
WR
WR
RD
RD
RD
RD
Change
D
D
D
D
To SSP
CK
CK
CK
CK
Q
Q
Q
Q
Q
Q
Q
Q
BLOCK DIAGRAM OF RB6
RD PORTB
 2010 Microchip Technology Inc.
Clock
SSP
From
SSP
SSPEN
RABPU
1
0
0
1
1
0
0
1
Q
Q
EN
EN
D
D
V
DD
Weak
V
V
DD
SS
Q3
ST
I/O Pin