PIC16LF723A-I/MV Microchip Technology, PIC16LF723A-I/MV Datasheet - Page 115
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PIC16LF723A-I/MV
Manufacturer Part Number
PIC16LF723A-I/MV
Description
7 KB Flash, 16 MHz Int. Osc, NanoWatt XLP 28 UQFN 4x4x0.5mm TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16F722AT-ISS.pdf
(284 pages)
Specifications of PIC16LF723A-I/MV
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
7KB (4K x 14)
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-UFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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13.0
The Timer2 module is an 8-bit timer with the following
features:
• 8-bit timer register (TMR2)
• 8-bit period register (PR2)
• Interrupt on TMR2 match with PR2
• Software programmable prescaler (1:1, 1:4, 1:16)
• Software programmable postscaler (1:1 to 1:16)
See Figure 13-1 for a block diagram of Timer2.
13.1
The clock input to the Timer2 module is the system
instruction clock (F
Timer2 prescaler, which has prescale options of 1:1,
1:4 or 1:16. The output of the prescaler is then used to
increment the TMR2 register.
The values of TMR2 and PR2 are constantly compared
to determine when they match. TMR2 will increment
from 00h until it matches the value in PR2. When a
match occurs, two things happen:
• TMR2 is reset to 00h on the next increment cycle.
• The Timer2 postscaler is incremented.
The match output of the Timer2/PR2 comparator is
then fed into the Timer2 postscaler. The postscaler has
postscale options of 1:1 to 1:16 inclusive. The output of
the Timer2 postscaler is used to set the TMR2IF
interrupt flag bit in the PIR1 register.
FIGURE 13-1:
2010 Microchip Technology Inc.
TIMER2 MODULE
Timer2 Operation
F
OSC
/4
OSC
TIMER2 BLOCK DIAGRAM
/4). The clock is fed into the
T2CKPS<1:0>
1:1, 1:4, 1:16
Prescaler
2
Comparator
TMR2
PR2
PIC16F/LF722A/723A
EQ
Reset
The TMR2 and PR2 registers are both fully readable
and writable. On any Reset, the TMR2 register is set to
00h and the PR2 register is set to FFh.
Timer2 is turned on by setting the TMR2ON bit in the
T2CON register to a ‘1’. Timer2 is turned off by clearing
the TMR2ON bit to a ‘0’.
The Timer2 prescaler is controlled by the T2CKPS bits
in the T2CON register. The Timer2 postscaler is
controlled by the TOUTPS bits in the T2CON register.
The prescaler and postscaler counters are cleared
when:
• A write to TMR2 occurs.
• A write to T2CON occurs.
• Any device Reset occurs (Power-on Reset, MCLR
Reset, Watchdog Timer Reset, or Brown-out
Reset).
Note:
TOUTPS<3:0>
Postscaler
1:1 to 1:16
Output
TMR2
TMR2 is not cleared when T2CON is
written.
4
Sets Flag
bit TMR2IF
DS41417A-page 115
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