PIC16F721T-I/ML Microchip Technology, PIC16F721T-I/ML Datasheet - Page 70

• 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

PIC16F/LF720/721
7.5
The INTOSC is factory calibrated but can be adjusted
in software by writing to the OSCTUNE register
(Register
The default value of the OSCTUNE register is ‘0’. The
value is a 6-bit two’s complement number.
When the OSCTUNE register is modified, the INTOSC
frequency will begin shifting to the new frequency. Code
execution continues during this shift. There is no
indication that the shift has occurred.
REGISTER 7-2:
DS41430A-page 70
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5-0
U-0
—
Oscillator Tuning
7-2).
Unimplemented: Read as ‘0’
TUN<5:0>: Frequency Tuning bits
01 1111 = Maximum frequency
01 1110 =
•
•
•
00 0001 =
00 0000 = Oscillator module is running at the factory-calibrated frequency.
11 1111 =
•
•
•
10 0000 = Minimum frequency
U-0
—
OSCTUNE: OSCILLATOR TUNING REGISTER
W = Writable bit
‘1’ = Bit is set
R/W-0
TUN5
R/W-0
TUN4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
TUN3
R/W-0
TUN2
 2010 Microchip Technology Inc.
x = Bit is unknown
R/W-0
TUN1
R/W-0
TUN0
bit 0