PIC16F721-I/SO Microchip Technology, PIC16F721-I/SO Datasheet - Page 54

• 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 6-4:
DS41430A-page 54
Data Bus
PORTA
IOCA
IOCA
TRISA
WR
Interrupt-on-
RD
RD
RD
Change
D
CK
Q
Q
Reset
MCLRE
BLOCK DIAGRAM OF RA3
V
SS
RD PORTA
MCLRE
Q
Q
MCLRE
EN
EN
D
D
V
DD
Weak
V
SS
Q3
Input
Pin
FIGURE 6-5:
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
IOCA
IOCA
WR
WR
WR
WR
RD
RD
RD
RD
Interrupt-on-
Note 1:
Change
D
D
D
D
2:
To T1G
To A/D Converter
CK
CK
CK
CK
With CLKOUT option.
ANSEL determines Analog Input mode.
Q
Q
Q
Q
Q
Q
Q
Q
Input mode
BLOCK DIAGRAM OF RA4
Analog
 2010 Microchip Technology Inc.
F
OSC
INTOSC/
RC/EC
CLKOUT
CLKOUT
(2)
Enable
Enable
Input mode
/4
RABPU
RD PORTA
CLKOUT
Analog
Enable
modes
Q
Q
1
0
(1)
CLK
EN
EN
D
D
V
DD
Weak
V
V
DD
SS
Q3
I/O Pin