PIC16F721T-I/SS Microchip Technology, PIC16F721T-I/SS Datasheet - Page 69
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PIC16F721T-I/SS
Manufacturer Part Number
PIC16F721T-I/SS
Description
7 KB FLASH, 256 B SRAM, 18 I/O 20 SSOP .209in T/R
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16LF720-ISS.pdf
(244 pages)
Specifications of PIC16F721T-I/SS
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
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7.4
The Oscillator Control (OSCCON) register
displays the status and allows frequency selection of the
internal
OSCCON register contains the following bits:
• Frequency selection bits (IRCF)
• Status Locked bits (ICSL)
• Status Stable bits (ICSS)
REGISTER 7-1:
2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
q = Value depends on condition
bit 7-6
bit 5-4
bit 3
bit 2
bit 1-0
U-0
—
Oscillator Control
oscillator
Unimplemented: Read as ‘0’
IRCF<1:0>: Internal Oscillator Frequency Select bits
When PLLEN = 1 (16 MHz HFINTOSC)
11 = 16 MHz
10 = 8 MHz (POR value)
01 = 4 MHz
00 = 2 MHz
When PLLEN = 0 (500 kHz MFINTOSC)
11 = 500 kHz
10 = 250 kHz (POR value)
01 = 125 kHz
00 = 62.5 kHz
ICSL: Internal Clock Oscillator Status Locked bit (2% Stable)
1 = 16 MHz/500 kHz internal oscillator is in lock
0 = 16 MHz/500 kHz internal oscillator has not yet locked
ICSS: Internal Clock Oscillator Status Stable bit (0.5% Stable)
1 = 16 MHz/500 kHz internal oscillator has stabilized to its maximum accuracy
0 = 16 MHz/500 kHz internal oscillator has not yet reached its maximum accuracy
Unimplemented: Read as ‘0’
(INTOSC)
U-0
—
OSCCON: OSCILLATOR CONTROL REGISTER
W = Writable bit
‘1’ = Bit is set
system
IRCF1
R/W-1
clock.
(Figure
IRCF0
R/W-0
7-1)
The
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
ICSL
R-q
PIC16F/LF720/721
ICSS
R-q
x = Bit is unknown
U-0
—
DS41430A-page 69
U-0
—
bit 0
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