PIC16LF723A-I/ML Microchip Technology, PIC16LF723A-I/ML Datasheet - Page 82

• Manufacturer Part Number: PIC16LF723A-I/ML
• Description: MCU PIC 3.5K FLASH XLP 28-QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16LF723A-I/ML

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Number Of I /o: 25
• Program Memory Type: FLASH
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 11x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC16LF
• No. Of I/o's: 25
• Ram Memory Size: 192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F/LF722A/723A
FIGURE 7-4:
7.6.4
The external Resistor-Capacitor (RC) modes support
the use of an external RC circuit. This allows the
designer maximum flexibility in frequency choice while
keeping costs to a minimum when clock accuracy is not
required. There are two modes: RC and RCIO.
In RC mode, the RC circuit connects to OSC1. OSC2/
CLKOUT outputs the RC oscillator frequency divided
by 4. This signal may be used to provide a clock for
external circuitry, synchronization, calibration, test or
other application requirements. Figure 7-5 shows the
external RC mode connections.
TABLE 7-1:
DS41417A-page 82
CONFIG1
OSCCON
OSCTUNE
Legend:
Note 1:
Note 1: A series resistor (R
Name
C1
C2 Ceramic
2: The value of R
3: An additional parallel feedback resistor (R
(1)
Resonator
ceramic resonators with low drive level.
selected.
may be required for proper ceramic resonator
operation.
x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by oscillators.
See Configuration Word 1 (Register 8-1) for operation of all bits.
EXTERNAL RC MODES
Bit 7
—
—
—
SUMMARY OF REGISTERS ASSOCIATED WITH CLOCK SOURCES
R
P (3)
R
S (1)
CERAMIC RESONATOR
OPERATION
(XT OR HS MODE)
F
varies with the Oscillator mode
Bit 6
CP
OSC1/CLKIN
OSC2/CLKOUT
—
—
S
R
) may be required for
F
(2)
MCLRE
IRCF1
TUN5
PIC
Bit 5
®
MCU
To Internal
Logic
Sleep
PWRTE
IRCF0
TUN4
Bit 4
P
)
WDTE
TUN3
Bit 3
ICSL
FOSC2
FIGURE 7-5:
In RCIO mode, the RC circuit is connected to OSC1.
OSC2 becomes an additional general purpose I/O pin.
The RC oscillator frequency is a function of the supply
voltage, the resistor (R
and the operating temperature. Other factors affecting
the oscillator frequency are:
• threshold voltage variation
• component tolerances
• packaging variations in capacitance
The user also needs to take into account variation due
to tolerance of external RC components used.
TUN2
ICSS
Bit 2
R
C
Note 1:
V
Recommended values: 10 k  R
EXT
EXT
SS
V
F
I/O
OSC
DD
(2)
2:
FOSC1
TUN1
Bit 1
/4 or
—
Alternate pin functions are described in
Section 6.1 “Alternate Pin Function”.
Output depends upon RC or RCIO clock mode.
FOSC0
TUN0
Bit 0
OSC1/CLKIN
OSC2/CLKOUT
—
EXT
EXTERNAL RC MODES
 2010 Microchip Technology Inc.
3 k  R
C
EXT
) and capacitor (C
--10 qq--
--00 0000
POR, BOR
> 20 pF, 2-5V
Value on
PIC
EXT
—
EXT
(1)
®
 100 k, 3-5V
MCU
 100 k, <3V
--10 qq--
--uu uuuu
EXT
Resets
Value on
all other
Internal
Clock
—
) values
(1)